| Name | Well |
|---|---|
| Entity Type | Table |
| Description | A well is a collection of (zero or more) boreholes drilled into the earth for the purpose of either (1) finding or producing underground resources; or (2) providing services related to the production of underground resources. |
| Submodel | Well |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | UWI , Existence_Kind , Version |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Address_Id | Address |
Physical address of a well | No |
NUMBER(38) |
| Current_Status | CODE NA |
The current status of a well | No |
VARCHAR2(64) |
| Current_Status_Date | DATE NA |
The effective date of the current status | No |
DATE |
| Drill_Slot_Id | Drill_Slot |
The drill slot through which the well was drilled. | No |
NUMBER(38) |
| Drill_Slot_Name | STRING255 NA |
A denormalization of the name of the drill slot through which the well was drilled, or the name of the drill slot through which the well was drilled in the case where the drill slot name is merely an annotation of the well and an instance of a drill slot has not been created. | No |
VARCHAR2(255) |
| 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) |
| Field_Id | Field |
The identifier of the Field in which this Well is located. | No |
NUMBER(38) |
| 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) |
| H2S_Flag | boolean NA |
Flag indicating the presence of H2S in the fluids produced from the well. | No 0 |
NUMBER(1) |
| Id | ID No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Initial_Lahee_Class | R_Lahee_Class |
The initial Lahee class for a well | No |
VARCHAR2(64) |
| 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) |
| Lahee_Class | R_Lahee_Class |
Denormalized from Borehole. Overall classification of the Well according to the Lahee classification system. Only useful where all Boreholes have the same classification | 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) |
| Permanent_Coord_System_Id | Coordinate_System |
The permanent coordinate system defined for the well | No |
NUMBER(38) |
| 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) |
| Security_Classification | CODE NA |
The classification of the well as far as information security is concerned | No |
VARCHAR2(64) |
| 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) |
| Spud_Date | DATE NA |
The date and time when activities to drill the well begin to create a hole in the earth. This is the spud date of the initial borehole. | No |
DATE |
| Standard_Pressure | double Pressure |
Standard pressure for rates and volumes reported to be measured at Standard Conditions. Set by the local regulatory authority. | No |
NUMBER |
| Standard_Temperature | double Temperature |
Standard temperature for rates and volumes reported to be measured at Standard Conditions. Set by the local regulatory authority. | No |
NUMBER |
| Surface_Location_Id | Position |
An association used to show the surface location of a Well | No |
NUMBER(38) |
| UWI | WELL_IDENTIFIER NA |
Unique Well Identifier | Yes |
VARCHAR2(64) |
| 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) |
| Cardinality | Entity |
|---|---|
| Many | Well_Status |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Activity_Facility_Invl | Site_Well | The well at which the facility is installed. E.g. A Wellhead Facility can be associated to a well using this relationship. | Nullify | No |
| Activity_Program | Well | Id of Well that the program is defined for | Cascade | No |
| Borehole | Well | An association used to show which well a borehole belongs to | Cascade | Yes |
| Borehole_Summary_DOV | Well | READ ONLY: Unique identifier for the well. | Cascade | No |
| DWSAP_Factor_Set | Well | The Drinking Water Safety Assessment Program factors associated with a particular well. | Cascade | Yes |
| Facility_Composition | Part_Well | An association to denote wells that are part of another larger facility. For example a Generic_Facility of type wellsite could be composed of 1 well and 1 tank battery. | Cascade | No |
| Field | Discovery_Well | The identifier of the well that was used to discover the field. | Nullify | No |
| Obligation_Component | Well | The well affected by the obligation. | Cascade | No |
| Production_Entity | Well | The identifier of the well that is represented by the production entity. | Cascade | No |
| Study_Well | Well | The identifier of a well that is an element of the study. | Nullify | No |
| Water_Demand_Rgn_Facility | Well | The Well that is part of the Water Demand Region | Cascade | No |
| Well_AFE | Well | The Well to which this Well_AFE pertains | Cascade | Yes |
| Well_Alias | Well | Well whose aliases these are. | Cascade | Yes |
| Well_BA_Involvement | Well | The well for which this involvement is valid | Cascade | Yes |
| Well_Comm_Interface_X | Well | This defines the well that is being served by the communications interface. | Cascade | Yes |
| Well_Remark | Well | An association used to allow remarks to me made about a particular Well | Cascade | Yes |
| Well_Remark_DOV | Well | READ ONLY: Unique identifier for the well. | Cascade | No |
| Well_Status_DOV | Well | READ ONLY: Unique identifier for the well. | Cascade | No |
| Wellhead_Protection_Area | Well | The wellhead Protection Area associated with a Well. | Cascade | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Surface_Location | Position | An association used to show the surface location of a Well | Control | No |
| Lahee_Class | R_Lahee_Class | Denormalized from Borehole. Overall classification of the Well according to the Lahee classification system. Only useful where all Boreholes have the same classification | Restrict | No |
| Permanent_Coord_System | Coordinate_System | The permanent coordinate system defined for the well | Restrict | No |
| Well_Structure | Wellsite_Structure | The structure from where the well was drilled | Assoc to One | No |
| Field | Field | The identifier of the Field in which this Well is located. | Cascade | No |
| Drill_Slot | Drill_Slot | The drill slot through which the well was drilled. | Nullify | No |
| Address | Address | Physical address of a well | Nullify | No |
| Initial_Lahee_Class | R_Lahee_Class | The initial Lahee class for a well | Restrict | No |