| Name | Gravel_Packing |
|---|---|
| Entity Type | Table |
| Description | A sand-control method used to prevent production of formation sand. In gravel pack operations, a steel screen is placed in the well bore and the surrounding annulus packed with prepared gravel of a specific size designed to prevent the passage of formation sand. The primary objective is to stabilize the formation while causing minimal impairment to well productivity. |
| Submodel | Stimulation |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Borehole_Activity , Wellsite_Activity , Activity , Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Activity_Program_Id | Activity_Program |
Reference to the program during which the activity was performed. | No |
NUMBER(38) |
| Activity_State | STRING64 NA |
The current state, or status, of the activity. Activity state is a refinement of the lifecycle indicator Existence_Kind. For example, a drilling job whose Existence_Kind is "Actual" could have an activity state of "turning to the right", "suspended due to weather", or "tool makeup or breakdown". An activity whose Existence_Kind is "Required" could have State values like "under investigation", "proposed" and "AFE approved". Note: The valid list of activity states will vary from one kind of activity to another, so the values entered into this column are not validated via a lookup table. | No |
VARCHAR2(64) |
| Activity_Template_Id | Activity_Template |
The Activity is an activation of, and is characterized by the associated Activity_Template. | No |
NUMBER(38) |
| Borehole_Id | Borehole |
To identify the borehole | Yes |
NUMBER(38) |
| Coiled_Tubing_Used_Flag | boolean NA |
A flag to indicate whether or not coil tubing unit was used (Yes / No) | No |
NUMBER(1) |
| End_Date | DATE NA |
The date and time at which the activity will end or did end. For planned activities, this would be expected end date. | No |
DATE |
| End_MD | double Depth |
Measured depth at the end of the activity or proposed depth end of the activity. | 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) |
| External_Reference | STRING64 NA |
A value that is used by an external organization to reference this activity. For example, if an external organization is hired to perform this activity, this column could be used to store the work order or purchase order number that organization uses to reference this activity. | No |
VARCHAR2(64) |
| Fill_Height_MD | double Depth |
The measured depth of the top of the gravel in a gravel pack | No |
NUMBER |
| 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) |
| Gravel_Packing_Method | CODE NA |
A name or short description to indicate the method of gravel packing. Ex. Circulating method, Squeeze gravel packing, Reverse Circulating gravel packing etc. | No |
VARCHAR2(64) |
| 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) |
| Internal_Reference | STRING64 NA |
A value that is used internally within the organization to reference this activity. | 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) |
| Packer_Test_Pressure | double Pressure |
A measurement to indicate the pressure at which the packer was tested. | 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) |
| Purpose | STRING255 NA |
A description of purpose of the activity or its stage | No |
VARCHAR2(255) |
| 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) |
| Sand_Out_Pressure | double Pressure |
A measurement to indicate the pressure at which sand out occurred. Sandout occurs when the formation cannot accept further sand and only the carrier fluid is injected into the formation. | No |
NUMBER |
| 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) |
| Start_Date | DATE NA |
The date and time at which the activity will start or did start. For planned activities, this would be expected start date. | No |
DATE |
| Start_MD | double Depth |
Measured depth at the start of the activity or proposed start depth of the activity. | No |
NUMBER |
| Successful_Flag | boolean NA |
A flag to indicate whether or not the activity was successful (Yes/No) | No |
NUMBER(1) |
| Time_Offset | double Time |
The time offset from the start of the program that this activity is scheduled to start at. This is normally used while planning a job. | No |
NUMBER |
| Transient_Period | R_Transient_Period |
Indicates whether the activity is executed daily, monthly, on demand, etc. | No |
VARCHAR2(64) |
| Triggering_Event_Id | Event |
The identifier of the event that triggered the start of this activity. Events can trigger activities. For example, an explosion event could trigger a firefighting activity. Note that this value should not conflict with, or be confused with, the value in Activity_Status.Triggering_Event. | No |
NUMBER(38) |
| 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) |
| Work_String_Id | Work_String |
The work string used during a borehole activity. | No |
NUMBER(38) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Gravel_Packing_Stage | Gravel_Packing_Activity | To identify the associated Gravel Packing Job. | Restrict | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Perforated_Interval | Perforated_Interval | For perforated interval against which the gravel pack job is done. | Assoc to Many | No |
| Work_String | Work_String | _ | Restrict | No |
| Borehole_Section | Borehole_Section | _ | Assoc to Many | No |
| Borehole_Zone | Borehole_Zone | _ | Assoc to Many | No |
| Borehole | Borehole | _ | Cascade | Yes |
| Activity_Program | Activity_Program | _ | Restrict | No |
| Transient_Period | R_Transient_Period | _ | Restrict | No |
| Super_Activity | Activity | _ | Assoc to One | No |
| Fulfilled_Activity | Activity | _ | Assoc to Many | No |
| Triggering_Event | Event | _ | Nullify | No |
| Activity_Template | Activity_Template | _ | Restrict | No |