| Name | Stimulation_Stage |
|---|---|
| Entity Type | Table |
| Description | A section or portion of the stimulation activity. |
| 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) |
| Average_Tubing_Pressure | double Pressure |
The average tubing pressure during the stage | No |
NUMBER |
| Balls_Recovered_Count | double No_Unit |
Number of ball sealers recovered | No |
NUMBER |
| Balls_Used_Count | double No_Unit |
Number of ball sealers used to divert the acid | No |
NUMBER |
| Borehole_Id | Borehole |
To identify the borehole | Yes |
NUMBER(38) |
| Bridge_Plug_MD | double Depth |
The measured depth of the bridge plug | No |
NUMBER |
| Diversion_Method | R_Diversion_Method |
The diversion method used in a Stimulation Job. Ex Bridge plug and packer, Chemical etc | No |
VARCHAR2(64) |
| 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) |
| Final_Casing_Pressure | double Pressure |
The casing pressure at the end of the stage | No |
NUMBER |
| Final_Tubing_Pressure | double Pressure |
The tubing pressure at the end of the stage | No |
NUMBER |
| Flow_Path | CODE NA |
This is the path that the fluid takes through the string. Examples could be Annulus, Casing, Tubing or Coiled Tubing | No |
VARCHAR2(64) |
| 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 casing pressure at the start of the stage | No |
NUMBER |
| Initial_Tubing_Pressure | double Pressure |
The tubing pressure at the start of the 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) |
| Max_Frac_Gradient | double Pressure_Per_Length |
Fracture pressure gradient expressed as pressure per unit length (example, psi/ft) at which the formation accepts whole fluid from the wellbore. When a range of values is specified for the estimated fracture gradient, then this value corresponds to the Maximum value in the range of values provided. | No |
NUMBER |
| Min_Frac_Gradient | double Pressure_Per_Length |
Fracture pressure gradient expressed as pressure per unit length (example, psi/ft) at which the formation accepts whole fluid from the wellbore. When a range of values is specified for the estimated fracture gradient, then this value corresponds to the Minimum value in the range of values provided. | No |
NUMBER |
| 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) |
| Observed_Frac_Pressure | double Pressure |
Surface pressure at which formation fracture occurs, i.e. when the formation accepts whole fluid from the wellbore. Actual fracture gradient at a given depth can be computed using the following formula: Fracture gradient = (Observed_Frac_Pressure + Total Hydrostatic Pressure - Total_Friction_Pressure ) / Formation Depth | No |
NUMBER |
| 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_MD | double Depth |
The measured depth of the Packer | No |
NUMBER |
| Pressure_Trend | CODE NA |
A description of the trend of the pressure during this stage | No |
VARCHAR2(64) |
| 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) |
| Screenout_Flag | boolean NA |
A flag to indicate whether or not screenout occurred. Screenout is a condition that occurs when the solids carried in a treatment fluid, such as proppant in a fracture fluid, create a bridge across the perforations or similar restricted flow area. This creates a sudden and significant restriction to fluid flow that causes a rapid rise in pump pressure. | No |
NUMBER(1) |
| Screenout_Pressure | double Pressure |
Pressure at which screenout occurred. Screenout is a condition that occurs when the solids carried in a treatment fluid, such as proppant in a fracture fluid, create a bridge across the perforations or similar restricted flow area. This creates a sudden and significant restriction to fluid flow that causes a rapid rise in pump pressure. | No |
NUMBER |
| Shut_In_Pressure | double Pressure |
The instantaneous shut in pressure during this stage | No |
NUMBER |
| Shut_In_Time | double Time |
The total shut in time for this stage | 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 |
| Stimulation_Activity_Id | Stimulation |
The stimulation job to which the stage is associated. Example: the squeeze stage of a frac job | Yes |
NUMBER(38) |
| Stimulation_Stage_Type | R_Stimulation_Stage |
The type of stimulation stage activity | Yes |
VARCHAR2(64) |
| 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 |
| Total_Friction_Pressure | double Pressure |
Total of friction losses in the pipe and annulus taking into account the losses in both open hole and cased hole sections. Friction loss refers to a reduction in the pressure of a fluid caused by its motion against an enclosed surface (such as a pipe). As the fluid moves through the pipe, friction between the fluid and the pipe wall and within the fluid itself creates a pressure loss. The faster the fluid moves, the greater are the losses. | No |
NUMBER |
| Tracer_Used_Flag | boolean NA |
A flag to indicate whether a tracer was used during this acidizing job | No |
NUMBER(1) |
| 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) |
| Well_Completion_Id | Well_Completion |
The identifier for the completion that is being stimulated. | No |
NUMBER(38) |
| Work_String_Id | Work_String |
The work string used during a borehole activity. | No |
NUMBER(38) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Stimulation_Evaluation | Stimulation_Stage | The stimulation stage for which the stimulation evaluation test was performed. | Cascade | No |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Well_Completion | Well_Completion | The identifier for the completion that is being stimulated. | Cascade | No |
| Stimulation_Activity | Stimulation | The stimulation job to which the stage is associated. Example: the squeeze stage of a frac job | Cascade | Yes |
| Diversion_Method | R_Diversion_Method | The diversion method used in a Stimulation Job. Ex Bridge plug and packer, Chemical etc | Restrict | No |
| Stimulation_Stage_Type | R_Stimulation_Stage | The type of stimulation stage activity | Restrict | Yes |
| Work_String | Work_String | _ | Restrict | No |
| Borehole_Section | Borehole_Section | _ | Assoc to Many | No |
| Activity_Program | Activity_Program | _ | Restrict | No |
| Borehole | Borehole | _ | Cascade | Yes |
| Activity_Template | Activity_Template | _ | 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 |
| Borehole_Zone | Borehole_Zone | _ | Assoc to Many | No |