| Name | Plug_Cement_Stage |
|---|---|
| Entity Type | Table |
| Description | The detailed information about the Plug or Primary cement stage of a cement job. A Primary cement stage consists of placing a cement sheath around a casing or liner string. The main objectives of primary cementing operations include zonal isolation to prevent migration of fluids in the annulus, support for the casing or liner string, and protection of the casing string from corrosive formation fluids. A Plug Cement stage consists of setting a plug in an existing well, from which to push off with directional tools, or plugging a well so that it may be abandoned. |
| Submodel | Cementing |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Cementing_Stage , Borehole_Activity , Wellsite_Activity , Activity , Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain | Property / Storage Unit | 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 identifier of the activity template which activates or characterizes the Activity. | No |
NUMBER(38) |
| After_Shutdown_Pressure | double | Pressure kPa |
Pressure Held After Shutdown | No |
NUMBER |
| Annular_Flow_Flag | boolean | NA |
A flag to indicate whether or not annular flow was observed after cement job? (Yes/No) | No |
NUMBER(1) |
| BH_Circ_Temperature | double | Temperature degC |
The Bottom Hole temperature when fluid is circulating | No |
NUMBER |
| BH_Static_Temperature | double | Temperature degC |
The Bottom Hole temperature when there is no flow | No |
NUMBER |
| Before_Bump_Pressure | double | Pressure kPa |
Pressure Prior to Bumping Plug | No |
NUMBER |
| Borehole_Id | Borehole |
|
The identifier of the borehole in which the activity occurred. | Yes |
NUMBER(38) |
| Bottom_Plug_Flag | boolean | NA |
A flag to denote whether a bottom plug was used during this job | No |
NUMBER(1) |
| Bottom_Plug_MD | double | Depth m |
The measured depth of the bottom plug | No |
NUMBER |
| Bump_Plug_Pressure | double | Pressure kPa |
Pressure required to Bump the Plug | No |
NUMBER |
| Cement_Job_Id | Cementing |
|
The cement job to which these stage details belong | Yes |
NUMBER(38) |
| Circulating_Pressure | double | Pressure kPa |
Circulating pressure before cementing | No |
NUMBER |
| Circulation_Out_MD | double | Depth m |
Measured depth at which the fluid is circulated out during this stage of the cementing operation | No |
NUMBER |
| Circulation_Rate | double | Flowrate m3/h |
Circulation rate of the fluid during this stage of the cementing operation | No |
NUMBER |
| Circulation_Time | double | Time s |
Circulation time between stages | No |
NUMBER |
| Drilled_Out_Date | DATE | NA |
The date when the cement plug was drilled out | No |
DATE |
| Drilled_Out_Diameter | double | Cylinder_Diameter mm |
The diameter of the hole drilled through the cement plug | No |
NUMBER |
| Drilled_Out_MD | double | Depth m |
The depth at which the cement plug was drilled out | No |
NUMBER |
| Duration | double | Time s |
The duration of the activity. For planned activities, this would be expected duration. | No |
NUMBER |
| 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 m |
Measured depth at the end of the activity or proposed depth end of the activity. | No |
NUMBER |
| End_Pressure | double | Pressure kPa |
Pressure Left On After Cementing 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) |
| Final_Casing_Pressure | double | Pressure kPa |
The pressure in the Casing at the end of the cement stage | No |
NUMBER |
| Final_Tubing_Pressure | double | Pressure kPa |
The pressure in the Tubing at the end of the cement stage | No |
NUMBER |
| Float_Held_Flag | boolean | NA |
Float Held Pressure? (Yes/No) | No |
NUMBER(1) |
| 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) |
| Id | ID | No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Initial_Casing_Pressure | double | Pressure kPa |
The pressure in the Casing at the start of the cement stage | No |
NUMBER |
| Initial_Tubing_Pressure | double | Pressure kPa |
The pressure in the Tubing at the start of the cement stage | 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) |
| 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) |
| Pill_Below_Plug_Flag | boolean | NA |
A flag to denote whether a pill was pumped into the borehole before the plug | No |
NUMBER(1) |
| Plug_Bumped_Flag | boolean | NA |
A flag to indicate whether or not the Plug bumped (Yes/No) | No |
NUMBER(1) |
| Plug_Catcher_Flag | boolean | NA |
Plug Catcher Used? (Yes/No) | No |
NUMBER(1) |
| Plug_Failed_Flag | boolean | NA |
A flag to denote whether a the plug used during this job failed | No |
NUMBER(1) |
| Plug_Type | STRING32 | NA |
The type of plug used in the cement stage | No |
VARCHAR2(32) |
| Pressure_Release_Date | DATE | NA |
Date and time that the Pressure was released | No |
DATE |
| Produced_By | STRING64 | NA |
The name of application role that created the entity, 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) |
| 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) |
| 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 m |
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) |
| Tag_Method | STRING64 | NA |
Method used to tag the cement top | No |
VARCHAR2(64) |
| Tagged_MD | double | Depth m |
Measured depth at which the Cement was tagged | No |
NUMBER |
| Tail_Pipe_Flag | boolean | NA |
Tail Pipe Usage? (Yes/No) | No |
NUMBER(1) |
| Tail_Pipe_Length | double | Length m |
The length of the tail pipe used | No |
NUMBER |
| Tail_Pipe_Size | double | Cylinder_Diameter mm |
Tail Pipe Nominal Size | No |
NUMBER |
| Tail_Pipe_Type | CODE | NA |
The type of tail pipe used | No |
VARCHAR2(64) |
| Time_Offset | double | Time s |
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 |
| Top_Depth_Method | STRING64 | NA |
Method Used to Determine Top of Cement | No |
VARCHAR2(64) |
| Top_Plug_Flag | boolean | NA |
A flag to denote whether a top plug was used during this job | No |
NUMBER(1) |
| Top_Plug_MD | double | Depth m |
The measured depth of the top plug | No |
NUMBER |
| Total_Cement_Volume | double | Volume m3 |
The total volume of cement used during the cement stage. | No |
NUMBER |
| Total_Cost | double | No_Unit |
The total cost of the activity expressed in the local currency. | No |
NUMBER |
| Transient_Period | R_Transient_Period |
|
A code or name that 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) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Activity_Template | Activity_Template | _ | Restrict | No |
| Fulfilled_Activity | Activity | _ | Assoc to Many | No |
| Triggering_Event | Event | _ | Nullify | No |
| Transient_Period | R_Transient_Period | _ | Restrict | No |
| Super_Activity | Activity | _ | Assoc to One | No |
| Activity_Program | Activity_Program | _ | Restrict | No |
| Work_String | Work_String | _ | Restrict | No |
| Borehole_Zone | Borehole_Zone | _ | Assoc to Many | No |
| Borehole | Borehole | _ | Cascade | Yes |
| Borehole_Section | Borehole_Section | _ | Assoc to Many | No |
| Cement_Job | Cementing | _ | Cascade | Yes |