| 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 | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Address_Id | Address |
|
Physical address of a well | No |
NUMBER(38) |
| Current_Operator | STRING255 | NA |
The current operator of the well. This is a denormalization of the information stored in the Well_BA_Involvement with a role or Operator. | No |
VARCHAR2(255) |
| 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. 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) |
| 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 |
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) |
| 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 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) |
| 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 kPa |
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 degC |
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 |
|
The identifier of the position that marks 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) |
| 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 | The identifier of the Well for which the program is defined. | Cascade | No |
| Borehole | Well | The identifier of the well to which a borehole belongs. | 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 |
| Rig_Planning | Well | Well identifier | 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 | The identifier of the well to which the remarks refer. | Cascade | Yes |
| Well_Remark_DOV | Well | READ ONLY: Unique identifier for the well. | Cascade | No |
| Well_Status | Well | The identifier of the well to which the status applies. | Cascade | Yes |
| 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 |
|---|---|---|---|---|
| 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 |
| Surface_Location | Position | The identifier of the position that marks the surface location of a Well. | Control | No |
| Initial_Lahee_Class | R_Lahee_Class | The initial Lahee class for a well | Restrict | No |
| Address | Address | Physical address of a well | Nullify | No |
| Drill_Slot | Drill_Slot | The drill slot through which the well was drilled. | Nullify | No |
| Field | Field | The identifier of the Field in which this Well is located. | Cascade | No |
| Well_Structure | Wellsite_Structure | The structure from where the well was drilled | Assoc to One | No |