12.11.23 StimJobStage

Topic Version	1	Published	11/11/2016	Topic Change History
For Standard	WITSML v2.0
Type:	Class		Stereotype:	«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