12.11.23 StimJobStage

Topic Version1Published11/11/2016
For StandardWITSML v2.0
Type:ClassStereotype:«XSDcomplexType»

Stage treated during a stimulation job.

Table 12.11.23-1 Attributes

Name

Type

Notes

AvgBaseFluidReturnVolumeRate

VolumePerTimeMeasure

Average base fluid pumping rate of all steps for stage treatment.

AvgBHStaticTemperature

ThermodynamicTemperatureMeasure

The average static temperature of the wellbore injection point(s) or formation at equilibrium (steady state) with no fluid or tool movement, allowing for equilibrium conditions at the wellbore injection point; (BHST: bottom hole static temperature.

AvgBHTreatingTemperature

ThermodynamicTemperatureMeasure

The average measured or calculated temperature of the wellbore during the treating with well fluid injection or circulation of the wellbore at the point of interest. Point of interest is generally the injection point or region of interest for the test or treatment.

AvgBottomholePumpedVolumeRate

VolumePerTimeMeasure

Average bottomhole treatment flow rate.

AvgConductivity

LengthPerTimeMeasure

Average conductivity of a fracture created during the treatment supported by proppant during the stimulation services Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material and on the degree of saturation. Saturated hydraulic conductivity, Ksat, describes water movement through saturated media.

AvgFractureWidth

LengthMeasure

Average fracture width created during the treatment of the stage.

AvgHydraulicPower

PowerMeasure

Average hydraulic horse power used.

AvgPresAnnulus

PressureMeasure

The average annulus pressure for any step for the stage treatment.

AvgPresCasing

PressureMeasure

The average casing pressure of any step for the stage treatment.

AvgPresSurface

PressureMeasure

The average pressure for treating the stage across all steps.

AvgPresTubing

PressureMeasure

The average tubing pressure of any step for the stage treatment.

AvgProppantConcBottomhole

MassPerVolumeMeasure

The average proppant concentration at the bottom of the hole.

AvgProppantConcSurface

MassPerVolumeMeasure

The average proppant concentration on the surface.

AvgSlurryReturnVolumeRate

VolumePerTimeMeasure

The average slurry return rate of all steps for the stage treatment.

BreakDownPres

PressureMeasure

The pressure at which the formation fractures and accepts injected fluid.

ClosureDuration

TimeMeasure

Delta time recorded for the closure of the fracture to occur during the stage treatment.

ClosurePres

PressureMeasure

An analysis parameter used in hydraulic fracture design to indicate the pressure at which the fracture effectively closes without proppant in place.

DTimEnd

TimeStamp

Ending date and time for the stage treatment.

DTimStart

TimeStamp

Starting date and time for the stage treatment.

FormationBreakLengthPerDay

LengthMeasure

The length of formation broken per day.

FormationName

String2000

The name of the formation being stimulated.

FormationProppantMass

MassMeasure

The weight of proppant placed in the formation.

FractureGradientFinal

ForcePerVolumeMeasure

The formation fracture gradient for the stage after treatment.

FractureGradientInitial

ForcePerVolumeMeasure

The formation fracture gradient for stage before treatment.

FractureHeight

LengthMeasure

The height of the fracture.

FractureLength

LengthMeasure

The length of the fracture created after treating the stage.

FrictionPressure

PressureMeasure

Friction pressure loss.

HhpOrderedCO2

PowerMeasure

Carbon dioxide hydraulic horsepower ordered for the stage.

HhpOrderedFluid

PowerMeasure

Fluid hydraulic horsepower ordered for the stage.

HhpUsedCO2

PowerMeasure

Carbon dioxide hydraulic horsepower actually used for the stage.

HhpUsedFluid

PowerMeasure

Fluid hydraulic horsepower actually used for the stage.

InitialShutinPres

PowerMeasure

The initial shut-in pressure.

MaxFluidVolumeRateAnnulus

VolumePerTimeMeasure

Maximum annulus fluid pumping rate of any step while treating the stage.

MaxFluidVolumeRateCasing

VolumePerTimeMeasure

Maximum casing fluid pumping rate of any step while treating the stage.

MaxFluidVolumeRateTubing

VolumePerTimeMeasure

Maximum tubing fluid pumping rate of any step while treating the stage.

MaxHydraulicPower

PowerMeasure

Maximum hydraulic horse power used for the stage.

MaxPresAnnulus

PressureMeasure

The highest annulus pressure of any step while treating the stage.

MaxPresCasing

PressureMeasure

The highest casing pressure of any step while treating the stage.

MaxPresSurface

PressureMeasure

Maximum surface pressure during treatment of the stage.

MaxPresTubing

PressureMeasure

The highest tubing pressure of any step while treating the stage.

MaxProppantConcBottomhole

MassPerVolumeMeasure

The maximum proppant concentration at the bottom of the wellbore.

MaxProppantConcSurface

MassPerVolumeMeasure

The maximum proppant concentration on the surface.

MdFormationBottom

MeasuredDepthCoord

Measured depth of the bottom of the formation.

MdFormationTop

MeasuredDepthCoord

Measured depth of the top of the formation.

MdOpenHoleBottom

MeasuredDepthCoord

Measured depth of the bottom open hole.

MdOpenHoleTop

MeasuredDepthCoord

Measured depth of the top open hole.

NetPres

PressureMeasure

The difference between the pressure which holds a fracture closed (minimal principal stress) and that pressure which is necessary to open the fracture.

Number

PositiveLong

The number associated with the stage.

OpenHoleDiameter

LengthMeasure

The diameter of the open hole.

OpenHoleName

String2000

A name for the open hole. To be used for open hole completions.

PercentPad

VolumePerVolumeMeasure

The percentage of volume pumped used for the pad.

PercentProppantPumped

VolumePerVolumeMeasure

Total proppant mass used as a percent of the design mass.

PerfBallCount

NonNegativeLong

Total number of perforation balls used while treating the stage.

PerfBallSize

LengthMeasure

The size of the perforation balls used while treating the stage

PerfProppantConc

MassPerVolumeMeasure

The proppant concentration at the perforations.

ProppantHeight

LengthMeasure

The proppant height.

ScreenedOut

boolean

Did screen out occur? True ("true" or "1") indicates that screen out occurred. False ("false" or "0") or not given indicates otherwise.

ScreenOutPres

PressureMeasure

The screen out pressure.

StagePerforationClusters

StimPerforationClusterSet

Perforations added just before treating the stage.

TechnologyType

String64

Text describing the technology used while pumping the stage.

TotalProppantInFormation

MassMeasure

The total amount of proppant in the formation relative to the current stage.

TotalPumpTime

TimeMeasure

The total pumping time for the treatment of the stage.

TotalVolume

VolumeMeasure

The total volume pumped for all steps while treating the stage.

TvdFormationBottom

WellVerticalDepthCoord

True vertical depth of the bottom of the formation.

TvdFormationTop

WellVerticalDepthCoord

True vertical depth of the top of the formation.

TvdOpenHoleBottom

WellVerticalDepthCoord

True vertical depth of the bottom open hole.

TvdOpenHoleTop

WellVerticalDepthCoord

True vertical depth of the top open hole.

uid

String64

Unique identifier for this instance of StimJobStage.

VolumeBody

VolumeMeasure

The volume pumped for the body portion of the stage treatment.

VolumeFlush

VolumeMeasure

Volume pumped during flush portion of stage treatment.

VolumePad

VolumeMeasure

Volume pumped for pad portion of stage treatment.

WaterSource

String2000

Water source for fluid pumped during stage.

WellboreProppantMass

MassMeasure

The weight of proppant left in the wellbore after pumping has stopped.

Table 12.11.23-2 Associations

Association

Notes

From: StimJobStage.JobStep

0..*To: StimJobStep

Association

 

From: StimJobStage.PdatSession

0..*To: StimJobDiagnosticSession

Association

 

From: StimJobStage.JobEvent

0..*To: StimEvent

Association

 

From: StimJobStage.FlowPath

0..1To: StimFlowPath

Association

 

From: StimJobStage.MaxMaterialUsageRate

0..*To: StimMaterialQuantity

Association

 

From: StimJobStage.StimStageLog

0..*To: Log

Association

 

From: StimJobStage.Diversion

0..1To: StimJobDiversion

Association

 

From: StimJobStage.

To: AbstractObject

Generalization

 

From: StimJobStage.MaterialUsed

0..*To: StimMaterialQuantity

Association

This is the total quantities of materials pumped—water, proppant and additives—over just this stage only.

From: StimJobStage.ReservoirInterval

0..*To: StimReservoirInterval

Association

 

From: StimJobStage.ShutInPres

0..*To: StimShutInPressure

Association

 

From: StimJobStage.

To: StimPerforationClusterSet

Dependency

 

From: StimJob.JobStage

0..*To: StimJobStage

Association