| 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 / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Avg_Overburden_Pressure | double Pressure |
The average pressure exerted on the matrix of this zone by the weight of overlying strata. | No |
NUMBER |
| Avg_Pore_Pressure | double Pressure |
The average static pressure of fluids within the pore space of this zone. | No |
NUMBER |
| Avg_Temperature | double Temperature |
The average temperature across this borehole zone interval. | No |
NUMBER |
| Compressibility | double Compressibility |
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. 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) |
| In_Situ_Stress | double Pressure |
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 |
The initial static pressure of fluids within the pore space of this zone. | No |
NUMBER |
| Initial_Temperature | double Temperature |
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 |
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 |
The static pressure gradient of fluids within the pore space of this zone. | No |
NUMBER |
| 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) |
| Temperature_Gradient | double Temperature_Per_Length |
The temperature gradient across this borehole zone interval. | No |
NUMBER |
| Uniaxial_Compress_Strength | double Pressure |
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 |
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 |
|---|---|---|---|---|
| Measuring_Activity | Generic_Activity | The activity that recorded the rock mechanical properties | Nullify | No |
| Induration | R_Sample_Hardness | The induration or hardness of the formation in this zone. | Restrict | No |
| Mechanical_Zone | Borehole_Zone | The zone, from top to bottom, that defines the limits of the mechanical properties in this borehole. | Cascade | Yes |
| 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 |