Gravel_Packing


[Columns] [Composed Of] [Referenced By] [Refers To]

General Information

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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


Columns

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NameValue DomainProperty /
Storage Unit
DescriptionRequired /
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)
Borehole_Id Borehole
The identifier of the borehole in which the activity occurred. 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)
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
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
m
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. 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)
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
kPa
A measurement to indicate the pressure at which the packer was tested. No
NUMBER
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)
Sand_Out_Pressure double Pressure
kPa
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 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)
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
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)


Referenced By

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From EntityLinkDescriptionImplementation TechniqueRequired
Gravel_Packing_Stage Gravel_Packing_Activity To identify the associated Gravel Packing Job. Restrict Yes


Refers To

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LinkTo EntityDescriptionImplementation TechniqueRequired
Perforated_Interval Perforated_Interval For perforated interval against which the gravel pack job is done. Assoc to Many No
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
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
Super_Activity Activity _ Assoc to One No


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