| Name | Rock_Mechanical_Pty_Set |
|---|---|
| Entity Type | Table |
| Description | A set of mechanical rock properties. |
| Submodel | Well_Marker |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | Mechanical_Zone_Id , Measurement_Date , Source , Existence_Kind , Version |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Avg_Overburden_Pressure | double | Pressure kPa |
The average pressure exerted on the matrix of this zone by the weight of overlying strata. | No |
NUMBER |
| Avg_Pore_Pressure | double | Pressure kPa |
The average static pressure of fluids within the pore space of this zone. | No |
NUMBER |
| Avg_Temperature | double | Temperature degC |
The average temperature across this borehole zone interval. | No |
NUMBER |
| Compressibility | double | Compressibility 1E-6 1/Pa |
The change in volume and density under hydrostatic pressure. It is the reciprocal of bulk modulus. | 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) |
| 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) |
| In_Situ_Stress | double | Pressure kPa |
The load per unit area in place in the sub-surface. | No |
NUMBER |
| Induration | R_Sample_Hardness |
|
The induration or hardness of the formation in this zone. | No |
VARCHAR2(64) |
| Initial_Pore_Pressure | double | Pressure kPa |
The initial static pressure of fluids within the pore space of this zone. | No |
NUMBER |
| Initial_Temperature | double | Temperature degC |
The initial temperature across this borehole zone interval. | No |
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) |
| Measurement_Date | DATE | NA |
The date and time when the measurement activity for this set of properties occurred. | No |
DATE |
| Measuring_Activity_Id | Generic_Activity |
|
The activity that recorded the rock mechanical properties | No |
NUMBER(38) |
| Mechanical_Zone_Id | Borehole_Zone |
|
The zone, from top to bottom, that defines the limits of the mechanical properties in this borehole. | Yes |
NUMBER(38) |
| 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) |
| Overburden_Pressure_Grad | double | Pressure_Per_Length kPa/m |
The pressure gradient exerted on the matrix of this zone by the weight of overlying strata. | No |
NUMBER |
| Poissons_Ratio | double | Dimensionless |
The ratio of the lateral unit strain to the longitudinal unit strain in a body that has been stressed longitudinally within its elastic limit. | No |
NUMBER |
| Pore_Pressure_Gradient | double | Pressure_Per_Length kPa/m |
The static pressure gradient of fluids within the pore space of this zone. | No |
NUMBER |
| 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) |
| Temperature_Gradient | double | Temperature_Per_Length degC/m |
The temperature gradient across this borehole zone interval. | No |
NUMBER |
| Uniaxial_Compress_Strength | double | Pressure kPa |
The maximum compressive stress that can be applied to a material, along a single unconfined axis, before failure occurs. | No |
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) |
| Youngs_Modulus | double | Pressure kPa |
A modulus of elasticity in tension or compression, involving a change in length. | No |
NUMBER |
| Zone_Interval_Fracture | R_Fracture_Origin |
|
A value that represents the origin of observed fractures of the borehole zone. Examples include Hydraulic, Induced, Natural. | No |
VARCHAR2(64) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Mechanical_Zone | Borehole_Zone | The zone, from top to bottom, that defines the limits of the mechanical properties in this borehole. | Cascade | Yes |
| Induration | R_Sample_Hardness | The induration or hardness of the formation in this zone. | Restrict | No |
| Measuring_Activity | Generic_Activity | The activity that recorded the rock mechanical properties | Nullify | No |
| Zone_Interval_Fracture | R_Fracture_Origin | A value that represents the origin of observed fractures of the borehole zone. Examples include Hydraulic, Induced, Natural. | Restrict | No |