| Name | Velocity_Function_Pair |
|---|---|
| Entity Type | Table |
| Description | A pair of values that comprise one element of a velocity function. The function value may be a velocity or time and the index values may be time, depth, or elevation. The pairs must be a valid velocity function, velocity-time, velocity-depth, or time-depth, for example. The index property is designated in Velocity_Set. If time-depth (elevation) pairs are entered, depth (elevation) is always the index and time is the function. |
| 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 |
|---|---|---|---|---|---|
| Borehole_Velocity_Id | Borehole_Velocity |
|
The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | No |
NUMBER(38) |
| 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) |
| Function_Value | double | Acoustic_Velocity m/s |
The value of the velocity function at the time, depth, or elevation given by the Index_Value. This may be a velocity, average, interval, stacking, etc. as defined by the Velocity_Form of the Velocity_Set, or a Time if Time-Depth pairs are used to describe the function. | Yes |
NUMBER |
| 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) |
| Generic_Velocity_Id | Generic_Velocity |
|
The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | No |
NUMBER(38) |
| Id | ID | No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Index_Value | double | No_Unit |
The time, depth or elevation value at which a function value exists for a velocity function. | Yes |
NUMBER |
| 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) |
| Survey_2D_Velocity_Id | Survey_2D_Velocity |
|
The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | No |
NUMBER(38) |
| Survey_3D_Velocity_Id | Survey_3D_Velocity |
|
The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | No |
NUMBER(38) |
| 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) |
| Version | STRING255 | NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Generic_Velocity | Generic_Velocity | The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | Cascade | No |
| Survey_3D_Velocity | Survey_3D_Velocity | The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | Cascade | No |
| Survey_2D_Velocity | Survey_2D_Velocity | The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | Cascade | No |
| Borehole_Velocity | Borehole_Velocity | The velocity location to which this velocity function pair belongs. Only one of Survey_2D_Velocity, a Survey_3D_Velocity, Borehole_Velocity or Generic_Velocity should be specified. | Cascade | No |