| Name | PU_Counterbalance |
|---|---|
| Entity Type | Extension of Pumping_Unit |
| Description | The counterbalance system opposes the weight of the sucker rod string and a portion of the fluid to be lifted. Pumping units generally are typed according to the method of counterbalance. This is true for beam balanced units, air balanced units, conventional crank balanced units, and special geometry (or Mark II) crank balanced units. |
| Submodel | Artificial_Lift |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| End_Date | DATE NA |
Date the weight was removed | No |
DATE |
| 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) |
| Location | STRING64 NA |
Location of the weight in the pumping unit | 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) |
| Pumping_Unit_Id | Pumping_Unit |
Reference to the pumping unit for which the counterbalance has been defined. | Yes |
NUMBER(38) |
| SDAT_Label | int No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Start_Date | DATE NA |
Date from which this properties are considered valid | No |
DATE |
| 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) |
| Weight_Position | STRING64 NA |
Position of the weight in the pumping unit | No |
VARCHAR2(64) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Pumping_Unit | Pumping_Unit | Reference to the pumping unit for which the counterbalance has been defined. | Cascade | Yes |