| Name | Velocity_Set |
|---|---|
| Entity Type | Table |
| Description | A set of velocity locations of the same index property. |
| Submodel | Velocity |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Common_Correction_Velocity | double | Acoustic_Velocity m/s |
The uniform correction velocity for all functions in this set. | No |
NUMBER |
| Datum_Correction_Method | R_Datum_Correction_Method |
|
The method to be used to correct the velocities to a datum. Determines whether or not the individual function correction velocities, the velocity set correction velocity and datum | No |
VARCHAR2(64) |
| Existence_Kind | REF_EXISTENCE_KIND | NA |
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. | Yes Actual |
VARCHAR2(64) |
| GUID | STRING128 | NA |
Globally Unique IDentifier for an instance of a class. USAGE NOTES: There are two cases: 1) GUID is not populated or used; and 2) it is populated with a value that is globally unique. If the GUID is populated there are two means of doing so for a given project: 2a) Seabed automatically generates and populates the GUID when an instance is created (valid only on Oracle based systems); and 2b) the GUID is generated and populated by an application (other than Seabed) on instance creation. Whether Seabed automatically generates GUIDs for a project is determined by the Auto_GUID flag in SDS_Account. Note that techniques 2a and 2b can coexist in the same project. When GUIDs are automatically generated an application can override the automatically generated GUID with its own GUID by simply supplying the GUID value. Applications that generate their own GUIDs and populate the GUID column will function correctly on projects which have automatic GUID generation turned on. | No |
VARCHAR2(128) |
| Id | ID | No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Index_Property | R_Property |
|
The property of the index for the time depth pairs. Values are Two_Way_Time, One_Way_Time, Measured_Depth, True_Vertical_Depth | Yes |
VARCHAR2(64) |
| Insert_Date | DATE | NA |
Date the entity was created in the repository | No |
DATE |
| Insert_User | STRING64 | NA |
The name of the user responsible for the creation of this entity in the repository. | No |
VARCHAR2(64) |
| Name | ENTITY_NAME | NA |
The name given to any object or data item, e.g. name of Well, name of Field, etc. | No |
VARCHAR2(255) |
| Original_Source | STRING64 | NA |
The name of the person, Organization or project source that originally provided this entity, e.g. "IHS-EnergyData" or "FinderUpper Stratton Deeper Pool 15" | No |
VARCHAR2(64) |
| Produced_By | STRING64 | NA |
The name of application role that created the entity, for data created programmatically. | No |
VARCHAR2(64) |
| Remarks | STRING2000 | NA |
Any type of remarks added to an entity instance. | No |
VARCHAR2(2000) |
| SDAT_Label | int | No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Source | STRING64 | NA |
Name of the person or organization responsible for this entitys E and P content and quality. Not the data technologist or IT expert creating the entity, for which see IT_Object.Insert_User and Update_User. | No |
VARCHAR2(64) |
| Update_Date | DATE | NA |
Date of the most-recent modification to the entity. | No |
DATE |
| Update_User | STRING64 | NA |
The name of the user responsible for the last modification to this entity. | No |
VARCHAR2(64) |
| Velocity_Context | R_Velocity_Context |
|
The context in which the velocity measurement was taken. Examples are Stacked Time, Stacked Depth, 2D Migrated Time, 2D Migrated Depth, 3D Migrated Time, 3D Migrated Depth. | No |
VARCHAR2(64) |
| Velocity_Form | R_Velocity_Form |
|
The form of the velocity value. Choices are Stacking, Dip_Corrected_Stacking, 2D_Dip_Corrected_Stacking, 3D_Dip_Corrected, RMS, Average, Interval. | Yes |
VARCHAR2(64) |
| Velocity_Type | R_Velocity |
|
The type of the velocities in the set. Values are Compressional, Vertical_Shear, and Horizontal_Shear. | Yes |
VARCHAR2(64) |
| Version | STRING255 | NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| Vertical_Reference_Id | Coordinate_System |
|
The coordinate system in which the velocity set is defined. This coordinate system or one of the coordinate systems in the coordinate system hierarchy contains the vertical references for the velocity set. | Yes |
NUMBER(38) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Study_Velocity_Set | Velocity_Set | The identifier of a set of velocity functions that is an element of the study. | Nullify | No |
| Velocity_Function | Velocity_Set | The collection of velocities to which this velocity location belongs, if any. | Cascade | No |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Vertical_Reference | Coordinate_System | The coordinate system in which the velocity set is defined. This coordinate system or one of the coordinate systems in the coordinate system hierarchy contains the vertical references for the velocity set. | Restrict | Yes |
| Velocity_Type | R_Velocity | The type of the velocities in the set. Values are Compressional, Vertical_Shear, and Horizontal_Shear. | Restrict | Yes |
| Index_Property | R_Property | The property of the index for the time depth pairs. Values are Two_Way_Time, One_Way_Time, Measured_Depth, True_Vertical_Depth | Restrict | Yes |
| Velocity_Context | R_Velocity_Context | The context in which the velocity measurement was taken. Examples are Stacked Time, Stacked Depth, 2D Migrated Time, 2D Migrated Depth, 3D Migrated Time, 3D Migrated Depth. | Restrict | No |
| Datum_Correction_Method | R_Datum_Correction_Method | The method to be used to correct the velocities to a datum. Determines whether or not the individual function correction velocities, the velocity set correction velocity and datum | Restrict | No |
| Velocity_Form | R_Velocity_Form | The form of the velocity value. Choices are Stacking, Dip_Corrected_Stacking, 2D_Dip_Corrected_Stacking, 3D_Dip_Corrected, RMS, Average, Interval. | Restrict | Yes |