| Name | Borehole_Pressure_Grad |
|---|---|
| Entity Type | Abstract |
| Description | A change in pressure as a function of distance associated with a borehole. |
| Submodel | Formation_Evaluation |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Borehole_Gradient , Entity , IT_Object , Tracked_Object |
| Specializations | Borehole_Cmpstnl_Gradient , Borehole_Lin_Press_Grad |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Base_TVD | double | Depth m |
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) |
| Chi_Square_Probability | double | Chi_Square |
The Chi-square probability in the computed pressure gradient. | No |
NUMBER |
| 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) |
| Fluid_Type | R_Production_Material |
|
The fluid type for which the gradient is calculated. | No |
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) |
| 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) |
| R2 | double | Statistical_Property |
The R squared value in the computed pressure gradient. | No |
NUMBER |
| 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) |
| Statistical_Error | double | Pressure_Per_Length kPa/m |
The statistical error in the computed pressure gradient. | No |
NUMBER |
| Theoretical_Error | double | Pressure_Per_Length kPa/m |
The theoretical error in the computed pressure gradient. | No |
NUMBER |
| Top_TVD | double | Depth m |
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_Comparison | Base_Gradient | The base gradient in the comparison. | Cascade | Yes |
| Gradient_Comparison | Initial_Gradient | The initial gradient in the comparison. | Cascade | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Fluid_Type | R_Production_Material | The fluid type for which the gradient is calculated. | Restrict | No |
| Borehole_Formation_Eval | Borehole_Formation_Eval | _ | Nullify | No |
| Borehole | Borehole | _ | Cascade | Yes |