| Name | Borehole_Gradient |
|---|---|
| Entity Type | Abstract |
| Description | A change as a function of distance, associated with a borehole. |
| Submodel | Formation_Evaluation |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations | Borehole_Pressure_Grad |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Base_TVD | double Depth |
The base true vertical depth for the gradient. | Yes |
NUMBER |
| Borehole_Formation_Eval_Id | Borehole_Formation_Eval |
The formation evaluation activity that produced the gradient. | No |
NUMBER(38) |
| Borehole_Id | Borehole |
The borehole for which the gradient is derived. | Yes |
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) |
| GUID | STRING128 NA |
Globally Unique IDentifier for an instance of a class. This GUID is not generated by the database, but is the GUID used by the application on first access of this object. Use of this property is optional and completely under the control of application developers. | No |
VARCHAR2(128) |
| Id | ID No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| 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 |
ID of the activity that was executing when the entity was created, 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 entity"s 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) |
| Top_TVD | double Depth |
The top true vertical depth for the gradient. | Yes |
NUMBER |
| 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) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Gradient_Fluid_Contact | Gradient_Below | The gradient above the fluid contact. | Cascade | No |
| Gradient_Fluid_Contact | Gradient_Above | The gradient below the fluid contact. | Cascade | No |
| Station_Pass_Gradient | Borehole_Gradient | A gradient associated with a logging station. | Cascade | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Borehole_Formation_Eval | Borehole_Formation_Eval | The formation evaluation activity that produced the gradient. | Nullify | No |
| Borehole | Borehole | The borehole for which the gradient is derived. | Cascade | Yes |