12.18.1 Wellbore

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

Used to capture the general information about a wellbore. This information is sometimes called a "wellbore header". A wellbore represents the path from surface to a unique bottomhole location. The wellbore object is uniquely identified within the context of one well object.

Table 12.18.1-1 Attributes

Name

Type

Notes

AchievedTD

boolean

True ("true" of "1") indicates that the wellbore has

acheieved total depth. That is, drilling has completed. False ("false" or "0") indicates otherwise.

Not given indicates that it is not known whether total depth has been reached.

DayTarget

TimeMeasure

Target days for drilling wellbore.

DTimKickoff

TimeStamp

Date and time of wellbore kickoff.

IsActive

boolean


True (="1" or "true") indicates that the wellbore is active.
False (="0" or "false") indicates otherwise. It is the servers responsibility to 

set this value based on its available internal data (e.g., what objects are changing).

Md

MeasuredDepthCoord

The measured depth of the borehole.

If status is plugged, indicates the maximum depth reached before plugging.

It is recommended that this value be updated about every 10 minutes by an assigned

raw data provider at a site.

MdBit

MeasuredDepthCoord

The measured depth of the bit.

If isActive=false then this value is not relevant.

It is recommended that this value be updated about every 10 minutes by an assigned

raw data provider at a site.

MdKickoff

MeasuredDepthCoord

Kickoff measured depth of the wellbore.

MdPlanned

MeasuredDepthCoord

Planned measured depth for the wellbore total depth.

MdSubSeaPlanned

MeasuredDepthCoord

Planned measured for the wellbore total depth - with respect to seabed.

Number

String64

Operator borehole number.

NumGovt

String64

Government assigned number.

PurposeWellbore

WellPurpose

POSC wellbore purpose.

Shape

WellboreShape

POSC wellbore trajectory shape.

StatusWellbore

WellStatus

POSC wellbore status.

SuffixAPI

String64

API suffix.

Tvd

WellVerticalDepthCoord

The true vertical depth of the borehole.

If status is plugged, indicates the maximum depth reached before plugging.

It is recommended that this value be updated about every 10 minutes by an assigned

raw data provider at a site.

TvdBit

WellVerticalDepthCoord

The true vertical depth of the bit.

If isActive=false then this value is not relevant.

It is recommended that this value be updated about every 10 minutes by an assigned

raw data provider at a site.

TvdKickoff

WellVerticalDepthCoord

Kickoff true vertical depth of the wellbore.

TvdPlanned

WellVerticalDepthCoord

Planned true vertical depth for the wellbore total depth.

TvdSubSeaPlanned

WellVerticalDepthCoord

Planned true vertical depth for the wellbore total depth - with respect to seabed.

TypeWellbore

WellboreType

Type of wellbore.

Table 12.18.1-2 Associations

Association

Notes

From: Wellbore.

To: AbstractObject

Generalization

 

From: Wellbore.

To: WellPurpose

Dependency

 

From: Wellbore.Well

1..1To: Well

Association

 

From: Wellbore.

To: WellboreType

Dependency

 

From: Wellbore.

To: WellStatus

Dependency

 

From: Wellbore.

To: WellboreShape

Dependency

 

From: Wellbore.ParentWellbore

0..1To: Wellbore

Association

This is a pointer to the parent wellbore. No parent = starts from top.

From: Attachment.Wellbore

1..1To: Wellbore

Association

 

From: OpsReport.Wellbore

1..1To: Wellbore

Association

 

From: StimJob.ReferenceWellbore

1..1To: Wellbore

Association

 

From: WellboreCompletion.ReferenceWellbore

1..1To: Wellbore

Association

 

From: FluidsReport.Wellbore

1..1To: Wellbore

Association

 

From: RigUtilization.Wellbore

1To: Wellbore

Association

 

From: ShowEvaluation.

To: Wellbore

Association

 

From: StimJob.Wellbore

1To: Wellbore

Association

 

From: Channel.

0..1To: Wellbore

Association

 

From: WellboreMarker.Wellbore

0..1To: Wellbore

Association

 

From: ConvCore.ReferenceWellbore

1..1To: Wellbore

Association

 

From: InterpretedGeology.

To: Wellbore

Association

 

From: SidewallCore.ReferenceWellbore

1..1To: Wellbore

Association

 

From: Log.Wellbore

1To: Wellbore

Association

Reference to the the wellbore of the log this depth registration image section belongs.

From: Tubular.Wellbore

1..1To: Wellbore

Association

 

From: DepthRegImage.Wellbore

1To: Wellbore

Association

Reference to the the wellbore this depth registration image belongs.

From: WellCMLedger.Wellbore

1..1To: Wellbore

Association

 

From: ChannelSet.Wellbore

0..1To: Wellbore

Association

 

From: Trajectory.Wellbore

1..1To: Wellbore

Association

 

From: RigUtilizationTest.

1To: Wellbore

Association

 

From: DownholeString.ReferenceWellbore

1..1To: Wellbore

Association

 

From: Wellbore.ParentWellbore

0..1To: Wellbore

Association

This is a pointer to the parent wellbore. No parent = starts from top.

From: WellboreGeology.Wellbore

1To: Wellbore

Association

 

From: BhaRun.Wellbore

1..1To: Wellbore

Association

 

From: CementJob.Wellbore

1..1To: Wellbore

Association

 

From: WellboreMarkerSet.Wellbore

0..1To: Wellbore

Association

 

From: SurveyProgram.Wellbore

1..1To: Wellbore

Association

 

From: WellboreGeometry.Wellbore

1..1To: Wellbore

Association

 

From: DrillReport.Wellbore

1..1To: Wellbore

Association

 

From: MudLogReport.Wellbore

1To: Wellbore

Association

 

From: CuttingsGeology.

To: Wellbore

Association

 

From: BoreholeString.ReferenceWellbore

1..1To: Wellbore

Association

 

From: Risk.Wellbore

1..1To: Wellbore

Association

 

From: Target.Wellbore

1..1To: Wellbore

Association