Named Data Types


Named Type                                Definition

ndt_absolute_orientation_array            element('grid', 'node', 'angular direction', 6)

                                          Defines the azimuth and inclination associated
                                          with each node of a grid. 

ndt_absorbed_dose                         quantity('absorbed dose', 6)

                                          This defines the domain for absorbed dose. 

ndt_acceleration_linear                   quantity('acceleration linear', 6)

                                          This defines the domain for acceleration linear.

ndt_acceleration_rotational               quantity('acceleration rotational', 6)

                                          This defines the domain for acceleration rotational.

ndt_accurate_length                       quantity('length', 10)

                                          This defines the domain structure for accurate
                                          length. 

ndt_acoustic_impedance                    quantity('acoustic impedance', 6)

                                          This domain defines the structure of acoustic
                                          impedance. 

ndt_acoustical_energy                     quantity('acoustical energy', 6)

                                          This defines the domain for acoustical energy.

ndt_acoustical_intensity                  quantity('acoustical intensity', 6)

                                          This defines the domain for acoustical intensity.

ndt_acoustical_power                      quantity('acoustical power', 6)

                                          This defines the domain for acoustical power.

ndt_acquisition_index_array               element('grid', 'node', '', 6)

                                          Defines the acquisition point and/or line indexes
                                          associated with each node on a 1d grid. Note that
                                          this may or may not make sense if "plotted" as
                                          a line. 

ndt_address_email                         string[80]

                                          This describes the domain for address email. 

ndt_admittance                            quantity('admittance', 6)

                                          This defines the domain for admittance. 

ndt_amount_of_substance                   quantity('amount of substance', 6)

                                          This defines the domain for amount of substance.

ndt_amplitude_1d_value                    element('grid1d', 'node', 'amplitude', 6)

                                          Defines a one dimensional array of amplitude values
                                          (unitless). 

ndt_angular_direction                     element('grid1d', 'node', 'angular direction', 6)

                                          A domain which stores a set of inclination from
                                          vertical and azimuth values. 

ndt_angular_velocity                      quantity('angular velocity', 6)

                                          This defines the domain for angular velocity.

ndt_any_quantity                          anyquantity(14)

                                          This defines a quantity domain which is unconstrained.
                                          Any Epicentre quantity type may be used. 

ndt_area                                  quantity('area', 6)

                                          This defines the structure of the domain area.

ndt_area_per_mass                         quantity('area per mass', 6)

                                          This defines the domain area per mass. 

ndt_area_per_volume                       quantity('area per volume', 6)

                                          This defines the domain for area per volume. 

ndt_axis_coordinates                      element('grid1d', 'node', '', 6)

                                          An element defining the coordinates of a grid
                                          axis. 

ndt_azimuth                               point('azimuthal angle', '', 6, 6)

                                          This defines the domain for azimuth, as a point
                                          in an angular coordinate system, originating at
                                          magnetic or true north. 

ndt_bending_moment_for_length             quantity('bending moment for length', 6)

                                          This defines the domain for bending moment for
                                          length. 

ndt_bin_index_array                       element('grid', 'node', 'bin node index', 6)

                                          Defines an ordered 1d array of "bin line index"
                                          and/or "bin point index" values. 

ndt_boolean                               boolean

                                          This describes the domain for boolean. 

ndt_bubble_point_pressure_curve           line('', 'pt system', 6)

                                          A data type for the description of the bubble
                                          point of a fluid system as functions of pressure
                                          and temperature. 

ndt_bubble_point_pressure_point           point('pt system', 'saturated fluid properties', 6,
                                          6)

                                          The description of the data type for a bubble
                                          point pressure and temperature. 

ndt_calorific_value_gas_volume            quantity('calorific value gas volume', 6)

                                          This defines the domain for calorific value gas
                                          volume. 

ndt_calorific_value_mass_basis            quantity('calorific value mass basis', 6)

                                          This defines the domain for calorific value mass
                                          basis. 

ndt_calorific_value_mole_basis            quantity('calorific value mole basis', 6)

                                          This defines the domain for calorific value mass
                                          basis. 

ndt_calorific_value_solid_liquid_vol      quantity('calorific value solid liquid vol', 6)

                                          This defines the domain for calorific value solid
                                          liquid volume. 

ndt_capacitance                           quantity('capacitance', 6)

                                          This defines the domain for capacitance. 

ndt_capillary_pressure_curve              line('', 'capillary pressure system', 6)

                                          A complex domain that describes the behavior of
                                          capillary pressures as a function of saturation.

ndt_capillary_pressure_point              location('capillary pressure system', 6)

                                          A complex domain for values of capillary pressure
                                          as a function of a single value of saturation.

ndt_capture_unit                          quantity('capture unit', 6)

                                          This defines the domain for capture unit. 

ndt_charge_density                        quantity('charge density', 6)

                                          This defines the domain for charge density. 

ndt_code1                                 fixed string[1]

                                          This describes the domain for code1. 

ndt_code2                                 fixed string[2]

                                          This describes the domain for code2. 

ndt_comment                               string[2000]

                                          This describes the domain for comments. 

ndt_compaction_factor_curve               line('', 'compaction factor system', 6)

                                          A data type used to describe the behavior of comapction
                                          factor as a function of pressure. 

ndt_compaction_factor_point               point('compaction factor system', 'compaction
                                          factor', 6, 6)

                                          A data type used to define a value of compaction
                                          factor at a condition of pressure. 

ndt_compressibility                       quantity('compressibility', 6)

                                          The data type that describes volumetric and viscous
                                          compressibilities, such as vol/vol/psi and cp/cp/psi.

ndt_concentration_mass_per_mass           quantity('concentration mass per mass', 6)

                                          This defines the domain for concentration mass
                                          per mass. 

ndt_concentration_mass_per_volume         quantity('concentration mass per volume', 6)

                                          This defines the structure of the domain concentration
                                          mass per volume. 

ndt_concentration_mole_per_volume         quantity('concentration mole per volume', 6)

                                          This defines the structure of the domain concentration
                                          mole per volume. 

ndt_concentration_volume_per_mole         quantity('concentration volume per mole', 6)

                                          This defines the structure of the domain concentration
                                          volume per mole. 

ndt_concentration_volume_per_volume       quantity('concentration volume per volume', 6)

                                          This defines the structure of the domain concentration
                                          volume per volume. 

ndt_conductance                           quantity('conductance', 6)

                                          This defines the domain for conductance. 

ndt_conductivity                          quantity('conductivity', 6)

                                          This defines the domain for conductivity. 

ndt_cooling_duty                          quantity('cooling duty', 6)

                                          This defines the domain for cooling duty. 

ndt_corrosion_rate                        quantity('corrosion rate', 6)

                                          This defines the domain for corrosion rate. 

ndt_cum_tank_vol_with_height              line('grid', 'volume length', 6)

                                          This domain represents cumulative tank volume
                                          as a function of tank height. 

ndt_current_density                       quantity('current density', 6)

                                          This defines the domain for current density. 

ndt_current_density_linear                quantity('current density linear', 6)

                                          This defines the domain for (electric) current
                                          dentity linear. 

ndt_data_store_type                       ENUMERATION OF (data_store, staged_data_store)

                                          The type of a data store. 

ndt_date                                  date

                                          This describe the domain for date. 

ndt_date_tod                              timestamp(2)

                                          This defines the structure of the domain date
                                          tod, which is a date and the time of day expressed
                                          as hours, minutes and seconds to the nearest half
                                          seconds, with an accompanying time zone difference
                                          from UTM (GMT). 

ndt_day_interval                          daytimeinterval(2)

                                          This defines the structure for the domain day
                                          interval, which is a time interval expressed as
                                          days, hours, minutes and seconds, to the nearest
                                          half second. 

ndt_decibel_per_octave                    quantity('decibel per octave', 6)

                                          This domain describes the structure of amplification
                                          ratio changes. 

ndt_density_gas                           quantity('density gas', 6)

                                          This defines the structure of the domain density
                                          gas. 

ndt_density_gradient                      quantity('density gradient', 6)

                                          This defines the domain structure for density
                                          gradient. 

ndt_density_liquid                        quantity('density liquid', 6)

                                          The mass per unit volume of a liquid. 

ndt_density_molar                         quantity('concentration volume per mole', 6)

                                          The data type for molar density, which describes
                                          the unit volumes per mole of material. 

ndt_density_solid                         quantity('density solid', 6)

                                          This defines the structure of the domain density
                                          solid. 

ndt_dew_point_pressure_curve              line('', 'pt system', 6)

                                          A description of the data type that defines the
                                          dew point behavior of a fluid system as a function
                                          of pressure and temperature. 

ndt_dew_point_pressure_point              point('pt system', 'saturated fluid properties', 6,
                                          6)

                                          The data type that describes the dew point of
                                          a fluid system as a function of temperature and
                                          pressure. 

ndt_diffusivity                           quantity('diffusivity', 6)

                                          This defines the domain diffusivity. 

ndt_displacement                          quantity('displacement', 6)

                                          This defines the domain for displacement. 

ndt_dry_gas_fvf_curve                     volume('', 'pt dry gas beta factor system', 6)

                                          The data type that describes the formation volume
                                          factor of dry gases as a function of pressure,
                                          temperature and gas gravity. 

ndt_dry_gas_fvf_point                     point('pt dry gas beta factor system', '', 6, 6)

                                          The data type that describes the formation volume
                                          factor of a dry gas at a condition of pressure,
                                          temperature and gas gravity. 

ndt_dry_gas_pressure_curve                surface('', 'pt dry gas system', 6)

                                          The data type used to describe a surface in a
                                          dry gas coordinate system of pressure, temperature
                                          and gas gravity. 

ndt_dry_gas_pressure_point                point('', 'dry gas properties', 6, 6)

                                          The data type used to describe a point in a dry
                                          gas coordinate system of pressure, temperature
                                          and gas gravity. 

ndt_dry_gas_viscosity_curve               volume('', 'pt dry gas viscosity system', 6)

                                          The date type that describes the behavior of viscosity
                                          (dynamic) in a dry gas fluid phase as a function
                                          of pressure, temperature and gas gravity. 

ndt_dry_gas_viscosity_point               point('pt dry gas viscosity system', '', 6, 6)

                                          The data type that describes the behavior of viscosity
                                          (dynamic) in a vapor fluid phase at a condition
                                          of pressure, temperature and gas gravity. 

ndt_dry_gas_z_factor_curve                volume('', 'pt dry gas z factor system', 6)

                                          The data type that describes the ideal gas deviation
                                          factor (z factor) for dry gases as a function
                                          of pressure, temperature and gas gravity. 

ndt_dry_gas_z_factor_point                point('pt dry gas z factor system', '', 6, 6)

                                          The data type that describes the ideal gas deviation
                                          factor (z factor) for a dry gas as a function
                                          of pressure, temperature and gas gravity. 

ndt_earth_angle                           angle('plane angle', 9)

                                          The named data type that describes latitudes and
                                          longitudes in the earth using decimal degrees
                                          of degrees, minutes and seconds. 

ndt_edge_geometry_uncertainty             element('grid1d', 'node', 'position uncertainty', 6)

                                          The domain for storing a set of positional uncertainty
                                          values along an edge. 

ndt_elastic_modulus                       quantity('elastic modulus', 6)

                                          This defines the structure of the domain elastic
                                          modulas. 

ndt_electric_capacity                     quantity('electric capacity', 6)

                                          This defines the domain for electric capacity.

ndt_electric_charge                       quantity('electric charge', 6)

                                          This defines the domain for electric charge. 

ndt_electric_current                      quantity('electric current', 6)

                                          This defines the domain for electric current.

ndt_electric_dipole_moment                quantity('electric dipole moment', 6)

                                          This defines the domain for electric dipole moment.

ndt_electric_field_strength               quantity('electric field strength', 6)

                                          This defines the domain for electric field strength.

ndt_electric_flux                         quantity('electric flux', 6)

                                          This defines the domain for electric flux. 

ndt_electric_impedance                    quantity('electric impedance', 6)

                                          This defines the domain for electric impedance.

ndt_electric_polarization                 quantity('electric polarization', 6)

                                          This defines the domain for electric polarization.

ndt_electric_potential                    quantity('electric potential', 6)

                                          This defines the domain for electric potential.

ndt_electric_resistivity                  quantity('electrical resistivity', 6)

                                          This defines the domain for electric resistivity.

ndt_electromotive_force                   quantity('electromotive force', 6)

                                          This defines the domain for electromorive force.

ndt_element_kind                          ENUMERATION OF (node, face, edge, cell)

                                          The kind of grid element. 

ndt_element_representation                ENUMERATION OF (trimesh, grid1d, grid2d, grid3d,
                                          grid4d, grid5d, grid6d, grid7d, grid8d, grid9d,
                                          grid10d, grid11d, grid12d, grid13d, grid14d, grid15d)

                                          The type of representation used for an element.

ndt_energy                                quantity('energy', 6)

                                          This defines the domain for energy. 

ndt_energy_per_mass                       quantity('energy per mass', 6)

                                          This defines the domain for energy per mass. 

ndt_energy_per_volume                     quantity('energy per volume', 6)

                                          This defines the domain for energy per volume.

ndt_event_observation_array               element('grid', 'node', 'event observation', 6)

                                          Specifies positioning observation values at each
                                          node of a grid. 

ndt_fail_state                            ENUMERATION OF (warn, mark, abort, fixup)

                                          The action taken as a result of a failure of an
                                          automatic test. 

ndt_fault_slip_element                    element('', '', 'fault slip', 6)

                                          The data type that describes the fault slip at
                                          each element of a grid or mesh that describes
                                          a fault plane. 

ndt_flow_rate_mass_basis                  quantity('flow rate mass basis', 6)

                                          This defines the domain for flow rate mass basis.

ndt_flow_rate_mole_basis                  quantity('flow rate mole basis', 6)

                                          This defines the domain for flow rate mole basis.

ndt_flow_rate_per_area_mass_basis         quantity('flow rate per area mass basis', 6)

                                          This defines the domain for flow rate per area
                                          mass basis. 

ndt_flow_rate_per_area_mole_basis         quantity('flow rate per area mole basis', 6)

                                          This defines the domain for flow rate per area
                                          mole basis. 

ndt_flow_rate_per_area_volume_basis       quantity('flow rate per area volume basis', 6)

                                          This defines the domain for flow rate per area
                                          volume basis. 

ndt_flow_rate_per_length_mass_basis       quantity('flow rate per length mass basis', 6)

                                          This defines the domain of flow rate per length
                                          mass basis. 

ndt_flow_rate_per_length_volume_basis     quantity('flow rate per length volume basis', 6)

                                          This defines the domain for flow rate per length
                                          volume basis. 

ndt_flow_rate_volume_basis                quantity('flow rate volume basis', 6)

                                          This defines the domain for flow rate volume basis.

ndt_fluid_phase_component_element         element('', '', 'fluid phase component', 6)

                                          The data type that describes the distribution
                                          of a fluid composition within a fluid phase for
                                          a grid or mesh using the element data type structure.

ndt_fluid_phase_element                   element('', '', 'fluid phase', 6)

                                          The data type that describes the distribution
                                          of fluid phase properties using the element data
                                          type structure. 

ndt_fluid_phase_interface_element         element('', '', 'fluid phase interface', 6)

                                          The data type that describes the distribution
                                          of properties at a fluid interface between fluid
                                          phases for a grid or mesh using the element data
                                          type structure. 

ndt_fluid_rheology                        line('grid', 'fluid rheology', 6)

                                          A domain used to record how fluid resistance to
                                          a shearing action alters with the applied shearing
                                          rate. 

ndt_fluid_stress                          quantity('fluid stress', 6)

                                          Fluid stress is the quantity of force per unit
                                          area required to shear a fluid. 

ndt_flux_of_displacement                  quantity('flux of displacement', 6)

                                          This defines the domain for flux of displacement.

ndt_force                                 quantity('force', 6)

                                          This defines the domain for force. 

ndt_force_area                            quantity('force area', 6)

                                          This defines the domain for force area. 

ndt_force_per_length                      quantity('force per length', 6)

                                          This defines the domain for force per length.

ndt_frequency                             quantity('frequency', 6)

                                          This defines the domain for frequency. 

ndt_frequency_1d_index                    line('', 'frequency 1d', 6)

                                          Defines a one dimensional axis in units of frequency.

ndt_frequency_spectrum_1d_value           element('grid1d', 'node', 'frequency spectrum', 6)

                                          Defines a one dimensional array of frequency spectrum
                                          values of amplitude and/or phase. 

ndt_fuel_consumption                      quantity('fuel consumption', 6)

                                          This defines the domain for fuel consumption.

ndt_fuel_mileage                          quantity('fuel mileage', 6)

                                          This defines the domain for fuel mileage. 

ndt_gel_strength                          line('grid', 'gel strength', 6)

                                          A domain which allows the ability of a fluid to
                                          develop gel like properties to be defined. The
                                          developed sheer stress is recorded as a function
                                          of elapsed time. 

ndt_geoidal_undulation                    surface('', 'geoidal undulation system', 9)

                                          A data type that describes a surface (based on
                                          an ellipsiod) upon which the separation of a geoid
                                          and an ellipsoid can be described. 

ndt_geometry_1d_edge                      line('', 'geometry 1d', 10)

                                          This defines the domain for the geometry of an
                                          edge described using a one dimensional coordinate
                                          system. 

ndt_geometry_2d_edge                      line('', 'geometry 2d', 10)

                                          Defines the domain for the geometry of an edge
                                          described using a two dimensional coordinate system.

ndt_geometry_2d_face                      surface('', 'geometry 2d', 10)

                                          Defines the domain for the geometry of a face
                                          described using a two dimensional coordinate system.

ndt_geometry_2d_ring                      line('grid', 'geometry 2d', 10)

                                          Defines the domain for a ring described using
                                          a two dimensional coordinate system. 

ndt_geometry_3d_edge                      line('', 'geometry 3d', 10)

                                          Defines the domain for the geometry of an edge
                                          described using a three dimensional coordinate
                                          system. 

ndt_geometry_3d_face                      surface('', 'geometry 3d', 10)

                                          Defines the domain for the geometry of a face
                                          described using a three dimensional coordinate
                                          system. 

ndt_geometry_3d_region                    volume('', 'geometry 3d', 10)

                                          Defines the domain for the geometry of a region
                                          described using a three dimensional coordinate
                                          system. 

ndt_geometry_3d_ring                      line('grid', 'geometry 3d', 10)

                                          Defines the domain for the geometry of a ring
                                          described using a three dimensional coordinate
                                          system. 

ndt_geometry_3d_shell                     surface('trimesh', 'geometry 3d', 10)

                                          Defines the domain for the geometry of a shell
                                          described using a three dimensional coordinate
                                          system. 

ndt_gor_curve                             line('', 'pt rs system', 6)

                                          A data type that describes the behavior of gas-oil
                                          ratios as a function of pressure and temperature.

ndt_gor_point                             point('pt rs system', '', 6, 6)

                                          A data type that describes the behavior of gas-oil
                                          ratios at a pressure and temperature. 

ndt_heat_flow_unit                        quantity('heat flow unit', 6)

                                          This defines the domain for heat flow unit. 

ndt_heat_flux                             quantity('heat flux', 6)

                                          This defines the domain for heat flux. 

ndt_heat_generation_unit                  quantity('heat generation unit', 6)

                                          This defines the domain for heat generation unit.

ndt_heat_release_rate                     quantity('heat release rate', 6)

                                          This defines the domain for heat release rate.

ndt_heat_transfer_coefficient             quantity('heat transfer coefficient', 6)

                                          This defines the domain for heat transfer coefficient.

ndt_identifier                            string[50]

                                          The named data type associated with facility and
                                          well identifiers. 

ndt_illuminance                           quantity('illuminance', 6)

                                          This defines the domain for illuminance. 

ndt_impact_energy                         quantity('impact energy', 6)

                                          This defines the domain for impact energy. 

ndt_inflow_performance_ratio              quantity('inflow performance ratio', 6)

                                          This defines the structure of the domain for inflow
                                          performance ratio. This is the inverse of performance
                                          index and has dimensions of pressure divided by
                                          volume flow rate. 

ndt_int1                                  integer

                                          This describes the domain for a one byte integer.
                                          Its value should be less than (+2**7)-1 and greater
                                          than (-2**7)-1. 

ndt_int4                                  integer

                                          This describes the domain for a four byte integer.
                                          Its value should be less than (+2**31)-1 and greater
                                          than (-2**31)-1. 

ndt_integer_element                       element('grid', 'cell', 'cell number', 0)

                                          This datatype records an integer number for each
                                          element of a grid. 

ndt_interfacial_tension_curve             volume('', 'pt interfacial tension system', 6)

                                          The data type that describes the interfacial tensions
                                          as a function of pressure, temperature and composition.

ndt_interfacial_tension_point             point('pt interfacial tension system', '', 6, 6)

                                          The data type that describes an interfacial tension
                                          value at a condition of pressure, temperature
                                          and composition. The composition, when always
                                          zero, is intended to be ignored. 

ndt_interval_transit_time                 quantity('interval transit time', 6)

                                          This defines the domain for interval transit time.

ndt_irradiance                            quantity('irradiance', 6)

                                          This defines the domain for irradiance. 

ndt_k_value_curve                         surface('', 'pt k value system', 6)

                                          The data type that describes equilibrium ratios
                                          as a surface in a coordinate system of pressure
                                          and temperature, 

ndt_k_value_point                         location('pt k value system', 6)

                                          The data type that describes the equilibrium ratio
                                          at a pressure and temperature for a fluid system.

ndt_latent_heat_of_vaporization           quantity('latent heat', 6)

                                          This defines the domain for latent heat of
                                          vaporization. 

ndt_length                                quantity('length', 6)

                                          This defines the domain for length. 

ndt_length_diameter                       quantity('length tube diameter', 6)

                                          A length which has a range suitable to express
                                          diameters associated with equipment, holes or
                                          procedures normally associated with wells. 

ndt_length_midrange                       quantity('length midrange', 6)

                                          A length quantity with range boundaries that reflect
                                          the depths to which it is possible to drill a
                                          well;  suggested range would be 0 - 30,000 ft
                                          (or equivalent). 

ndt_length_per_volume                     quantity('length per volume', 6)

                                          This defines the domain for length per volume.

ndt_light_exposure                        quantity('light exposure', 6)

                                          This defines the domain for light exposure. 

ndt_line                                  line('', '', 6)

                                          A line data type. 

ndt_line_representation                   ENUMERATION OF (grid)

                                          The type of representation used for a line. 

ndt_linear_thermal_expansion              quantity('linear thermal expansion', 6)

                                          This defines the domain for linear thermal expansion,
                                          which describes an isobaric change in length due
                                          to a change in temperature. 

ndt_location                              location('', 10)

                                          A data type for general location data. This describes
                                          the coordinates for the location of a point (vertex)
                                          in a coordinate system. 

ndt_location_1d                           location('earth 1d', 10)

                                          A data type for 1D location data.  This describes
                                          the coordinate for the location of a point (vertex)
                                          in a 1D coordinate system. 

ndt_location_2d                           location('earth 2d', 10)

                                          A data type for 2D Earth Location data. This describes
                                          the coordinates of a point in a 2D coordinate
                                          system, describing location with respect to the
                                          earth. 

ndt_location_3d                           location('earth 3d', 10)

                                          A data type for 3D earth locations. This describes
                                          a coordinate point in a 3D coordinate system,
                                          defined with respect to the earth. 

ndt_logical                               logical

                                          This describes the domain for logical. 

ndt_logical_array                         element('grid', 'node', 'logical flag', 1)

                                          Assigns a logical flag to the node of a grid.

ndt_long_sql                              string

                                          An arbitrarily long STRING, containing a single
                                          PSQL statement. 

ndt_luminance                             quantity('luminance', 6)

                                          This defines the domain for luminance. 

ndt_luminous_efficacy                     quantity('luminous efficacy', 6)

                                          This defines the domain for luminous efficacy.

ndt_luminous_exitance                     quantity('luminous exitance', 6)

                                          This defines the domain for luminous exitance.

ndt_luminous_flux                         quantity('luminous flux', 6)

                                          This defines the domain for luminous flux. 

ndt_luminous_intensity                    quantity('luminous intensity', 6)

                                          This defines the domain for luminous intensity.

ndt_magnetic_dipole_moment                quantity('magnetic dipole moment', 6)

                                          This defines the domain for magnetic dipole moment.

ndt_magnetic_field_strength               quantity('magnetic field strength', 6)

                                          This defines the domain for magnetic field strength.

ndt_magnetic_flux                         quantity('magnetic flux', 6)

                                          This describes the domain for magnetic flux. 

ndt_magnetic_flux_density                 quantity('magnetic flux density', 6)

                                          This defines the domain for magnetic flux density.

ndt_magnetic_moment                       quantity('magnetic moment', 6)

                                          This defines the domain for magnetic momemt. 

ndt_magnetic_potential_difference         quantity('magnetic potential difference', 6)

                                          This defines the domain for magnetic potential
                                          difference. 

ndt_magnetization                         quantity('magnetization', 6)

                                          This defines the domain for magnetization. 

ndt_mass                                  quantity('mass', 6)

                                          This defines the domain for mass. 

ndt_mass_per_area                         quantity('mass per area', 6)

                                          This defines the domain for mass per area. 

ndt_mass_per_length                       quantity('mass per length', 6)

                                          This defines the domain for mass per length. 

ndt_measured_depth                        location('measured depth system', 6)

                                          A data type that describes a location in a measured
                                          depth coordinate system. 

ndt_mesh_edge                             sample('mesh edge', 6)

                                          A set of numbered mesh edges and their bounding
                                          mesh nodes. Each mesh edge has a number, a start
                                          node number and an end node number. These are
                                          recorded as three properties of the sample. The
                                          bounding node pairs shall be unique within the
                                          set of mesh edges. 

ndt_mesh_face                             sample('mesh face', 6)

                                          A sample defining a list of faces and bounding
                                          mesh nodes for a triangular mesh. Each face has
                                          a face number and three node numbers. The three
                                          node numbers shall be unique within the faces
                                          of the mesh. 

ndt_missing_element                       element('', '', '', 6)

                                          An element data type indicating the missing elements
                                          of a grid. The missing faces or cells are shown
                                          by attaching a descriptive property "MISSING"
                                          to the appropriate faces or cells of the grid.

ndt_mobility                              quantity('mobility', 6)

                                          This defines the domain for mobility. 

ndt_mod_k_value_curve                     surface('', 'pt mod k value system', 6)

                                          The data type that describes equilibrium ratios
                                          as a surface in a coordinate system of pressure,
                                          temperature, and pseudo composition factor. 

ndt_modulus_of_admittance                 quantity('modulus of admittance', 6)

                                          This defines the domain for modulus of admittance.

ndt_modulus_of_impedance                  quantity('modulus of impedance', 6)

                                          This defines the domain for modulus of impedance.

ndt_moh_scale_hardness                    integer

                                          The hardness of a mineral relative to a spectrum
                                          of mineral standards. Scale is defined with values
                                          from 1 - 10, with the softest mineral, talc, defining
                                          1, and the hardest mineral, diamond, defining
                                          10. The system is named for its inventor, Moh.

ndt_mole_fraction_curve                   surface('', 'pt mole fractions', 6)

                                          The data type that describes a surface in a coordinate
                                          system that includes pressure, temperature and
                                          mole fraction. 

ndt_mole_fraction_point                   point('pt mole fractions', '', 6, 6)

                                          The data type that describes a point in a coordinate
                                          system that includes pressure, temperature and
                                          mole fraction. 

ndt_moment_of_inertia                     quantity('moment of inertia', 6)

                                          This defines the domain for moment of inertia.

ndt_moment_of_section                     quantity('moment of section', 6)

                                          This defines the domain for moment of section.

ndt_momentum                              quantity('momentum', 6)

                                          This defines the domain for momentum. 

ndt_money                                 money('')

                                          Named data type for currencies of any type or
                                          denomination. 

ndt_name                                  string[40]

                                          This describes the domain for names. 

ndt_name_array                            element('grid', 'node', 'name only', 6)

                                          Assigns a name at each node of a grid. 

ndt_number_array                          element('grid', 'node', 'whole number', 6)

                                          Defines a unitless number for each node on a grid.

ndt_parachor                              quantity('parachor', 6)

                                          This defines the domain for parachor. This has
                                          dimensions of volume / [time]**2. 

ndt_per_area                              quantity('per area', 6)

                                          This is a named data type that describes a areal
                                          population density, such  as a count per square
                                          meter. 

ndt_percent                               real[6]

                                          This defines the domain for percent. This percentage
                                          is not restricted to being positive or less than
                                          100. 

ndt_percent_le_100                        real[6]

                                          The domain for percentages that must be positive
                                          and cannot be greater than 100. 

ndt_permeability                          quantity('permeability', 6)

                                          This defines the domain for permeability. 

ndt_permeability_length                   quantity('permeability length', 6)

                                          This defines the domain for permeability length.
                                          . 

ndt_permeance                             quantity('permeance', 6)

                                          This defines the domain for permeance. 

ndt_permittivity                          quantity('permittivity', 6)

                                          This defines the domain for permittivity. 

ndt_pfrac_le_1                            real[6]

                                          A real number that is greater than or equal to
                                          zero and less than or equal to one. 

ndt_ph                                    quantity('pH', 6)

                                          A real number representing acidity, measured on
                                          the pH scale. 

ndt_phone_number                          string[10]

                                          This is the simple data type for phone number.

ndt_pint1                                 integer

                                          This describes the domain for positive one byte
                                          integers. Its value should be positive and less
                                          than (+2**7)-1. 

ndt_pint2                                 integer

                                          This describes the domain for positive two byte
                                          integers. Its value should be positive and less
                                          than (+2**15)-1. 

ndt_pint4                                 integer

                                          This describes the domain for positive four byte
                                          integers. Its value should be positive and less
                                          than (+2**31)-1. 

ndt_plane_angle                           quantity('plane angle', 6)

                                          The angle subtended by two intersecting straight
                                          lines measured in the plane of the two lines.

ndt_point                                 point('', '', 6, 6)

                                          The domain describing one or more quantity values
                                          associated with a point coordinate. 

ndt_point_geometry_uncertainty            sample('position uncertainty', 6)

                                          The domain for storing an ellipse of uncertainty
                                          about a point. 

ndt_porosity                              quantity('porosity', 6)

                                          This domain defines the pore space volume of rock
                                          per unit gross rock volume. 

ndt_power                                 quantity('power', 6)

                                          This domain defines the quantity that expresses
                                          the rate of doing work . 

ndt_power_per_area                        quantity('power per area', 6)

                                          This defines the domain for power per area. 

ndt_preal4                                real[6]

                                          This describes the domain for positive (four byte)
                                          floating point values. Its value must be positive
                                          and less than +10**38, and it should have a minumum
                                          of 6 significant figures. 

ndt_pressure                              quantity('pressure', 6)

                                          Defines the domain for pressure;  force per unit
                                          area. 

ndt_pressure_drop                         quantity('pressure drop', 6)

                                          This defines the domain for pressure drop;  a
                                          pressure change decreases in pressure are considered
                                          to be positive. 

ndt_privilege                             ENUMERATION OF (dae_select, dae_insert, dae_update,
                                          dae_delete, dae_execute)

                                          Type of data access privilege. 

ndt_productivity_index                    quantity('productivity index', 6)

                                          This defines the domain for productivity index.

ndt_property_element                      element('', '', '', 6)

                                          This is the domain for generalized property element.

ndt_pseudo_pressure                       quantity('pseudopressure', 6)

                                          The domain that defines gas pseudo pressure. 

ndt_radiance                              quantity('radiance', 6)

                                          This defines the domain for radiance. 

ndt_radiant_energy                        quantity('radiant energy', 6)

                                          This defines the domain for radiant energy. 

ndt_radiant_flux                          quantity('radiant flux', 6)

                                          This defines the domain for radiant flux. 

ndt_radiant_intensity                     quantity('radiant intensity', 6)

                                          This defines the domain for radiant intensity.

ndt_radioactivity                         quantity('radioactivity', 6)

                                          This defines the domain for radioactivity. 

ndt_ratio                                 ratio(6)

                                          A unitless number defined as the result of dividing
                                          a denominator by its numerator, where the denominator
                                          and numerator are held as real numbers. 

ndt_rational                              rational

                                          This describes the domain for rational. 

ndt_reactance                             quantity('reactance', 6)

                                          This defines the domain for reactance. 

ndt_real4                                 real[6]

                                          This describes the domain for signed (four byte)
                                          floating point values. Its value must be less
                                          than +10**38 and greater than -10**38. It should
                                          have a minimum of six significant figures. 

ndt_real8                                 real[14]

                                          This describes the domain for signed (eight byte)
                                          floating point values. Its value should be less
                                          than +10**75 and greater than -10**75 and should
                                          have a minimum of fourteen significant figures.

ndt_relative_length                       quantity('relative length', 6)

                                          This defines the domain for relative length. 

ndt_relative_orientation_array            element('grid', 'node', 'case orientation', 6)

                                          Defines relative orientation values at each node
                                          on a grid. The orientations are defined using
                                          axes of azimuth, inclination and rotation. 

ndt_reluctance                            quantity('reluctance', 6)

                                          This defines the domain for reluctance. 

ndt_resistance                            quantity('resistance', 6)

                                          This defines the domain for resistance. 

ndt_rotational_frequency                  quantity('rotational frequency', 6)

                                          This defines the domain for rotatonal frequency.

ndt_saturated_compressibility_curve       surface('', 'pt compressibility system', 6)

                                          The data type that describes the values of fluid
                                          compressibilities in a saturated fluid system
                                          as a function of pressure and temperature. 

ndt_saturated_compressibility_point       point('pt compressibility system', '', 6, 6)

                                          The data type that describes the compressibility
                                          of a saturated fluid phase at a condition of pressure
                                          and temperature. 

ndt_saturated_fvf_curve                   surface('', 'pt beta factor system', 6)

                                          The data type that describes the formation volume
                                          factor as a function of pressure and temperature
                                          for a saturated fluid. 

ndt_saturated_fvf_point                   point('pt beta factor system', '', 6, 6)

                                          The data type that describes the formation volume
                                          factor at a condition of pressure and temperature
                                          for a saturated fluid. 

ndt_saturated_liquid_density_curve        surface('', 'pt density liquid system', 6)

                                          The data type that describes the liquid density
                                          of a saturated fluid as a function of pressure
                                          and temperature. 

ndt_saturated_liquid_density_point        point('pt density liquid system', '', 6, 6)

                                          The data type that describes the liquid density
                                          of a saturated fluid at a condition of pressure
                                          and temperature. 

ndt_saturated_viscosity_curve             surface('', 'pt viscosity system', 6)

                                          A description of the behavior of fluid viscosity
                                          (dynamic) as a function of pressure and temperature.

ndt_saturated_viscosity_point             point('pt viscosity system', '', 6, 6)

                                          The data type that describes fluid viscosity (dynamic)
                                          at a condition of pressure and temperature. 

ndt_saturation_distribution_element       element('', '', 'saturation', 6)

                                          This is the data type used to define a saturation
                                          distribution using the element data type. 

ndt_saturation_gradient                   quantity('volume fraction per length', 6)

                                          This defines the domain for saturation gradient,
                                          which has dimensions of volume fraction/length.

ndt_scale                                 quantity('ratio', 6)

                                          This domain is for unitless numbers, expressed
                                          as reals or as percent reals. 

ndt_section_modulus                       quantity('section modulus', 6)

                                          This defines the domain for section modulus. 

ndt_seismic_time                          quantity('seismic time', 6)

                                          This defines the domain for seismic times;  which
                                          may be expressed in seconds, milliseconds, or
                                          microseconds. 

ndt_self_inductance                       quantity('self inductance', 6)

                                          This defines the domain for self inductance. 

ndt_shear_rate                            quantity('shear rate', 6)

                                          A measure of the speed at which a fluid is sheared.

ndt_short_name                            string[15]

                                          This describes the domain for short names. 

ndt_shot_density                          quantity('per length', 6)

                                          The density of perforations;  usually measured
                                          in shots per foot. 

ndt_solid_angle                           quantity('solid angle', 6)

                                          This defines the domain for solid angle. 

ndt_sound_pressure                        quantity('sound pressure', 6)

                                          This defines the domain for sound pressure. 

ndt_specific_fuel_consumption_mass        quantity('specific fuel consumption mass', 6)

                                          This defines the domain for specific fuel consumption
                                          mass. 

ndt_specific_fuel_consumption_volume      quantity('specific fuel consumption volume', 6)

                                          This defines the domain for specific fuel consumption
                                          volume. 

ndt_specific_heat_capacity_mass           quantity('specific heat capacity', 6)

                                          This defines the domain for specific heat capacity
                                          mass. 

ndt_specific_heat_capacity_mole           quantity('specific heat capacity mole', 6)

                                          This defines the domain for specific heat capacity
                                          mole. 

ndt_specific_impact_energy                quantity('specific impact energy', 6)

                                          This defines the domain for specific impact energy.

ndt_specific_productivity_index           quantity('specific productivity index', 6)

                                          This defines the data type for specific productivity
                                          indices. 

ndt_specific_volume_mass_gas              quantity('specific volume mass gas', 6)

                                          This defines the domain for specific volume mass
                                          gas. 

ndt_specific_volume_mass_liquid           quantity('specific volume mass liquid', 6)

                                          This defines the domain for specific volume mass
                                          liquid. 

ndt_specific_volume_mole                  quantity('specific volume mole', 6)

                                          This defines the domain for specific volume mole.

ndt_spherical_coordinates_complex_angle   location('', 6)

                                          Defines the domain for spherical coordinates complex
                                          angle. 

ndt_station_relative_location_array       element('grid', 'node', 'station relative location',
                                          6)

                                          Defines the location of seismic stations relative
                                          to each other. 

ndt_std_volume_gas                        quantity('std volume gas', 6)

                                          This defines the domain for a volume of a gas
                                          at a standard temperature and pressure. 

ndt_std_volume_gas_rate                   quantity('std volume gas rate', 6)

                                          A data type to define rates using standard volumes
                                          of gases. 

ndt_std_volume_liquid                     quantity('std volume liquid', 6)

                                          This defines the domain for the volume of a liquid
                                          at a standard temperature and pressure. 

ndt_std_volume_liquid_rate                quantity('std volume liquid rate', 6)

                                          The data type for liquid rates in standard volumes.

ndt_std_volume_per_area                   quantity('std volume per area', 6)

                                          A data type to describe standard volumes for a
                                          unit of area. 

ndt_std_volume_per_volume                 quantity('std volume per volume', 6)

                                          This defines the domain for standard volume per
                                          volume. 

ndt_std_volume_ratio                      quantity('std volume ratio', 6)

                                          A data type for ratios of standard volumes. 

ndt_stress                                quantity('stress', 6)

                                          This defines the domain for stress. 

ndt_string_255                            string[255]

                                          This defines the domain for 255 character strings.

ndt_surface_density_of_charge             quantity('surface density of charge', 6)

                                          This defines the domain for surface density of
                                          charge. 

ndt_surface_energy                        quantity('surface energy', 6)

                                          This defines the domain for surface energy. 

ndt_surface_representation                ENUMERATION OF (grid, trimesh, contour)

                                          The type of representation used for a surface.

ndt_susceptance                           quantity('susceptance', 6)

                                          This defines the domain for susceptance. 

ndt_temperature                           quantity('temperature', 6)

                                          This defines the domain for temperature. 

ndt_temperature_per_length                quantity('temperature per length', 6)

                                          This defines the domain for temperature per length.

ndt_test_state                            ENUMERATION OF (immediate, deferred, off)

                                          Indicates when a rule will be tested during API
                                          operations. 

ndt_text                                  string

                                          This describes the domain for unlimited text.

ndt_text_132                              string[132]

                                          Defines the domain for a 132-character text line.

ndt_thermal_conductivity                  quantity('thermal conductivity', 6)

                                          This defines the domain for thermal conductivity.

ndt_thermal_resistance                    quantity('thermal resistance', 6)

                                          This defines the domain for thermal resistance.

ndt_three_phase_rel_perm_point            location('kr 3p system', 6)

                                          The domain that describes a relative permeability
                                          value in a three phase, fluid-rock system as a
                                          function of two saturation values. 

ndt_three_phase_rel_perm_surface          surface('', 'kr 3p system', 6)

                                          A domain that describes the behavior of relative
                                          permeability as a function of two variables of
                                          saturation. 

ndt_time                                  quantity('time', 6)

                                          This defines the domain for time;  where time
                                          is represented by a real number and a unit such
                                          as days, hours, minutes, or seconds. 

ndt_time_1d_index                         line('', 'time 1d', 6)

                                          This defines a one dimensional index in time.

ndt_time_array                            element('grid', 'node', 'time only', 6)

                                          Defines a time at each node on a grid. 

ndt_time_geologic                         quantity('time geologic', 7)

                                          This defines the domain for geologic time. 

ndt_time_millisecond                      quantity('time millisecond', 6)

                                          The domain of time expressed in milliseconds.

ndt_time_second                           quantity('time second', 6)

                                          Elapsed time which must be expressed in seconds.

ndt_torque                                quantity('torque', 6)

                                          This defines the domain for torque. 

ndt_tortuosity                            quantity('tortuosity', 6)

                                          This defines the domain for tortuosity;  which
                                          has dimensions of [length/length]**2 

ndt_trace_value                           element('', '', '', 6)

                                          The array of property data associated with a trace.
                                          The association is made via a common, N dimensional
                                          grid. 

ndt_turbulence_coefficient                quantity('turbulence coefficient', 6)

                                          The data type for the non-Darcy (turbulence) factor
                                          used in the Forchheimer equation for the flow
                                          of gases. 

ndt_two_phase_rel_perm_curve              line('', 'kr 2p system', 6)

                                          A domain that describes a relative permeability
                                          behavior as a function of a saturation variable.

ndt_two_phase_rel_perm_point              location('kr 2p system', 6)

                                          A complex domain for values of relative permeability
                                          as a function of a single value of saturation.

ndt_uid_array                             element('grid', 'node', 'user unique identifier', 6)

                                          Defines a UID (User Unique Identifier) value at
                                          each node of a grid. This is an implied reference
                                          from a node in one grid to a node in another grid.

ndt_undersaturated_compressibility_curve  volume('', 'upt compressibility system', 6)

                                          The data type that describes fluid compressibility
                                          as a function of pressure, temperature and saturation
                                          pressure for an undersaturated fluid phase. This
                                          may be at a aturated (pressure .eq. saturation
                                          pressure) or undersaturated (pressure .gt. saturation
                                          pressure) condition. 

ndt_undersaturated_compressibility_point  point('upt compressibility system', '', 6, 6)

                                          The data type that describes a fluid compressibility
                                          at a condition of pressure, temperature and saturation
                                          pressure for a saturated fluid phase. 

ndt_undersaturated_fvf_curve              volume('', 'upt beta factor system', 6)

                                          The data type that describes the behavior of formation
                                          volume factor in a fluid phase as a function of
                                          pressure, temperature and saturation pressure.
                                          This may be at undersaturated (pressure .eq. saturation
                                          pressure) or saturated (pressure .eq. saturated
                                          pressure) conditions. 

ndt_undersaturated_fvf_point              point('upt beta factor system', '', 6, 6)

                                          The data type that describes the behavior of formation
                                          volume factors in an oleic fluid phase at a single
                                          condition of pressure, temperature and saturation
                                          pressure. This may be at an undersaturated (pressure
                                          .gt. saturation pressure) or saturated (pressure
                                          .eq. saturation pressure) condition. 

ndt_undersaturated_pressure_curve         volume('', 'upt system', 6)

                                          The date type used to define the behavior of
                                          undersaturated fluid properties of liquids in
                                          as a function of pressure, temperature and saturation
                                          pressure. This may be at undersaturated (pressure
                                          .gt. saturation pressure) or saturated (pressure
                                          .eq. saturation pressure) conditions. 

ndt_undersaturated_pressure_point         point('upt system', 'undersaturated fluid
                                          properties', 6, 6)

                                          The data type used to define undersaturated fluid
                                          properties at a single condition of pressure,
                                          temperature and saturation pressure. This may
                                          be at an undersaturated (pressure .gt. saturation
                                          pressure) or saturated condition (pressure .eq.
                                          saturation pressure) condition. 

ndt_undersaturated_viscosity_curve        volume('', 'upt viscosity system', 6)

                                          The data type that describes the behavior of viscosity
                                          (dynamic) in a fluid phase as a function of pressure,
                                          temperature and saturation pressure. This may
                                          include undersaturated (pressure .gt. saturation
                                          pressure) and saturated (pressure .eq saturation
                                          pressure) conditions. 

ndt_undersaturated_viscosity_point        point('upt viscosity system', '', 6, 6)

                                          The data type that describes the behavior of viscosity
                                          (dynamic) in a fluid phase at a single condition
                                          of pressure, temperature, and saturation pressure.
                                          This may be at an undersaturated (pressure .gt.
                                          saturation pressure) or saturated (pressure .eq.
                                          saturation pressure) condition. 

ndt_unit_productivity_index               quantity('unit productivity index', 6)

                                          The data type for unit productivity indices. 

ndt_unstructured_grid_3d                  unstructured_3d_topology

                                          A named data type to carry the structure of cells,
                                          faces, edges and nodes within an unstructured
                                          3D grid. 

ndt_user_unique_identifier                integer

                                          A user assigned unique identifier. This is comparable
                                          to a system generated surrogate key except that
                                          it is user assigned. The identifier is only unique
                                          within the context of the entity in which the
                                          attribute is defined. The value may be used within
                                          supplemental data types as an implied relationship
                                          to instances in the data store. 

ndt_velocity                              quantity('velocity', 6)

                                          This defines the domain for velocity. 

ndt_vertical_geometry_edge                line('grid', 'vertical system', 6)

                                          A vertical coordinate at each node of a 1D grid.

ndt_vertical_geometry_face                surface('grid', 'vertical system', 6)

                                          A vertical coordinate at each node of a 2D grid.

ndt_viscometer_rheology_result            sample('viscometer rheology result', 6)

                                          A domain which allows the results of a viscometer
                                          fluid rheology test to be stored. 

ndt_viscosity_kinematic                   quantity('viscosity kinematic', 6)

                                          This is a kinematic viscosity data type.  Its
                                          SI units are m**2/s . 

ndt_volume                                quantity('volume', 6)

                                          A quantity type describing volume or size of a
                                          region, or a  substance occupying a region. 

ndt_volume_fraction                       real[7]

                                          This is a real number defining the structure of
                                          a volume fraction. 

ndt_volume_per_length                     quantity('volume per length', 6)

                                          This defines the domain for volume per length.

ndt_volume_per_mass                       quantity('volume per mass', 6)

                                          This defines the domain for volume per mass. 

ndt_volume_per_volume                     quantity('volume per volume', 6)

                                          This defines the domain for volume per volume.

ndt_volume_representation                 ENUMERATION OF (grid)

                                          The type representation used for a volume. 

ndt_volumetric_heat_transfr_coefficient   quantity('volumetric heat transfer coefficient', 6)

                                          This defines the domain for volumetric heat transfer
                                          coefficient. 

ndt_volumetric_thermal_expansion          quantity('volumetric thermal expansion', 6)

                                          This defines the domain for volumetric thermal
                                          expansion, which describes an isobaric change
                                          in volume due to a change in temperature. 

ndt_water_depth_array                     element('grid', 'node', 'water depth', 6)

                                          Information about water depths at each node of
                                          a grid. For example, vertical depth, travel time,
                                          velocity, temperature, salinity. 

ndt_wave_length                           quantity('wave length', 6)

                                          This defines the domain for wave length. 

ndt_wet_gas_density_curve                 surface('', 'pt density wet gas system', 6)

                                          The data type that describes vapor density as
                                          a function of pressure and temperature for wet
                                          gas fluid systems (pressure = dew point pressure).

ndt_wet_gas_density_point                 point('', '', 6, 6)

                                          The data type that describes vapor density at
                                          a condition of pressure and temperature for wet
                                          gas fluid systems (pressure = dew point pressure).

ndt_wet_gas_pressure_curve                line('', 'pt system', 6)

                                          The data type used to describe a curve in a wet
                                          gas coordinate system of pressure and temperature.

ndt_wet_gas_pressure_point                point('pt system', 'wet gas properties', 6, 6)

                                          The data type used to describe a point in a wet
                                          gas coordinate system of pressure and temperature.

ndt_wet_gas_z_factor_curve                surface('', 'pt wet gas z factor system', 6)

                                          A data type that describes z factor behavior as
                                          a function of pressure and temperature for a wet
                                          gas fluid system (pressure = dew point pressure).

ndt_wet_gas_z_factor_point                point('pt wet gas z factor system', '', 6, 6)

                                          A data type to describe the ideal gas deviation
                                          factor (z factor) at a condition of pressure and
                                          temperature for wet gas fluid systems (pressure
                                          = dew point pressure). 

ndt_work_per_length                       quantity('work per length', 6)

                                          This defines the domain for work per length. 

ndt_yearmonthinterval                     yearmonthinterval

                                          This defines the domain for time intervals expressed
                                          as years and months. 

ndt_yield                                 quantity('yield', 6)

                                          This defines the domain for yield. 


EPICENTRE schema version 2.1

INDEX august POSC Mobil ABOUT
The Epicentre schema is copyright © 1994, 1995, 1996 by POSC, Houston, Texas, USA