| 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 / 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) |
| After_Shutdown_Pressure | double Pressure |
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 |
The Bottom Hole temperature when fluid is circulating | No |
NUMBER |
| BH_Static_Temperature | double Temperature |
The Bottom Hole temperature when there is no flow | No |
NUMBER |
| Before_Bump_Pressure | double Pressure |
Pressure Prior to Bumping Plug | No |
NUMBER |
| Borehole_Id | Borehole |
To identify the borehole | 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 |
The measured depth of the bottom plug | No |
NUMBER |
| Bump_Plug_Pressure | double Pressure |
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 |
Circulating pressure before cementing | No |
NUMBER |
| Circulation_Out_MD | double Depth |
Measured depth at which the fluid is circulated out during this stage of the cementing operation | No |
NUMBER |
| Circulation_Rate | double Flowrate |
Circulation rate of the fluid during this stage of the cementing operation | No |
NUMBER |
| Circulation_Time | double Time |
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 |
The diameter of the hole drilled through the cement plug | No |
NUMBER |
| Drilled_Out_MD | double Depth |
The depth at which the cement plug was drilled out | 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 |
Measured depth at the end of the activity or proposed depth end of the activity. | No |
NUMBER |
| End_Pressure | double Pressure |
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 |
The pressure in the Casing at the end of the cement stage | No |
NUMBER |
| Final_Tubing_Pressure | double Pressure |
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. 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) |
| Initial_Casing_Pressure | double Pressure |
The pressure in the Casing at the start of the cement stage | No |
NUMBER |
| Initial_Tubing_Pressure | double Pressure |
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 |
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) |
| 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) |
| Tag_Method | STRING64 NA |
Method used to tag the cement top | No |
VARCHAR2(64) |
| Tagged_MD | double Depth |
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 |
The length of the tail pipe used | No |
NUMBER |
| Tail_Pipe_Size | double Cylinder_Diameter |
Tail Pipe Nominal Size | No |
NUMBER |
| Tail_Pipe_Type | CODE NA |
The type of tail pipe used | No |
VARCHAR2(64) |
| 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 |
| 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 |
The measured depth of the top plug | 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) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| 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_Template | Activity_Template | _ | Restrict | No |
| Activity_Program | Activity_Program | _ | Restrict | No |
| Super_Activity | Activity | _ | Assoc to One | No |
| Fulfilled_Activity | Activity | _ | Assoc to Many | No |
| Triggering_Event | Event | _ | Nullify | No |
| Cement_Job | Cementing | _ | Cascade | Yes |
| Transient_Period | R_Transient_Period | _ | Restrict | No |