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Named Semantic Graph

Name
Intersecting a wellbore
Goal
Convey TVD uncertainty during wellbore intersection.
Description
Driller or Operator unintentionally sidetracks a well significantly above TD, and wishes to re-enter the mother bore with the sidetracked well with minimum dog-leg severity. This operation will save having to drill an entire sidetrack to TD. There are several issues here all related to uncertainty (a) detecting that an unintentional sidetrack has occurred, (b) steering back to the mother bore at very slight small inclination and azimuth differences to avoid significant dogleg. Reference: Rio Oil & Gas Expo and Conference 2020, From TLWP: Lessons Learned From Voluntary and Involuntary Sidetracks, Rohlfs de Macedo et al., IBP0804_20 (to be published December 2020).

Statements

Subject Name Subject Category Predicate Name Object Name Object Category
Current operation #1 DDQUD.Drilling.ActualOperation has a Reconnect Sub Operation #1 DDQUD.Drilling.ActualOperation
Depth Interval #1b DDQUD.Drilling.DepthInterval is associated with Survey #1b DDQUD.Drilling.SurveyFile
Trajectory #1a DDQUD.Drilling.Trajectory belongs to Current operation #1 DDQUD.Drilling.ActualOperation
Separation Distance #1 DDQUD.Drilling.Distance depends on Wellbore Position Uncertainty #1a DDQUD.Drilling.Uncertainty
Wellbore #1 DDQUD.Drilling.WellBore has a Survey #1a DDQUD.Drilling.SurveyFile
Trajectory #1c DDQUD.Drilling.Trajectory has a Wellbore Position Uncertainty #1c DDQUD.Drilling.Uncertainty
Depth Interval #1a DDQUD.Drilling.DepthInterval is associated with Survey #1a DDQUD.Drilling.SurveyFile
Depth Interval #1d DDQUD.Drilling.DepthInterval belongs to Survey #1a DDQUD.Drilling.SurveyFile
Separation Distance #2 DDQUD.Drilling.Distance depends on Wellbore Position Uncertainty #1c DDQUD.Drilling.Uncertainty
Trajectory #1b DDQUD.Drilling.Trajectory utilizes Depth Interval #1b DDQUD.Drilling.DepthInterval
Separation Distance #2 DDQUD.Drilling.Distance depends on Wellbore Position Uncertainty #1a DDQUD.Drilling.Uncertainty
Survey #1a DDQUD.Drilling.SurveyFile belongs to Drilling Sub Operation #1 DDQUD.Drilling.ActualOperation
Wellbore #1 DDQUD.Drilling.WellBore has a Trajectory #1a DDQUD.Drilling.Trajectory
Trajectory #1a DDQUD.Drilling.Trajectory utilizes Depth Interval #1a DDQUD.Drilling.DepthInterval
Depth Interval #1c DDQUD.Drilling.DepthInterval is associated with Survey # 1c DDQUD.Drilling.SurveyFile
Current operation #1 DDQUD.Drilling.ActualOperation has a Drilling Sub Operation #1 DDQUD.Drilling.ActualOperation
Wellbore #1 DDQUD.Drilling.WellBore has a Current operation #1 DDQUD.Drilling.ActualOperation
Wellbore Position Uncertainty #1a DDQUD.Drilling.Uncertainty is estimated using Confidence Factor #1 DDQUD.Drilling.ConfidenceFactor
Survey # 1c DDQUD.Drilling.SurveyFile belongs to Reconnect Sub Operation #1 DDQUD.Drilling.ActualOperation
Current operation #1 DDQUD.Drilling.ActualOperation has a Reaming Sub Operation #1 DDQUD.Drilling.ActualOperation
Wellbore Position Uncertainty #1c DDQUD.Drilling.Uncertainty is estimated using Confidence Factor #1 DDQUD.Drilling.ConfidenceFactor
Trajectory #1b DDQUD.Drilling.Trajectory has a Wellbore Position Uncertainty #1b DDQUD.Drilling.Uncertainty
Separation Distance #1 DDQUD.Drilling.Distance depends on Wellbore Position Uncertainty #1b DDQUD.Drilling.Uncertainty
Trajectory #1c DDQUD.Drilling.Trajectory utilizes Depth Interval #1b DDQUD.Drilling.DepthInterval
Survey #1a DDQUD.Drilling.SurveyFile is measured using Survey Instrument #1 DDQUD.Drilling.SurveyInstrument
Trajectory #1c DDQUD.Drilling.Trajectory utilizes Depth Interval #1d DDQUD.Drilling.DepthInterval
Wellbore Position Uncertainty #1b DDQUD.Drilling.Uncertainty is estimated using Confidence Factor #1 DDQUD.Drilling.ConfidenceFactor
Trajectory #1b DDQUD.Drilling.Trajectory utilizes Depth Interval #1d DDQUD.Drilling.DepthInterval
Survey #1b DDQUD.Drilling.SurveyFile belongs to Reaming Sub Operation #1 DDQUD.Drilling.ActualOperation
Trajectory #1a DDQUD.Drilling.Trajectory has a Wellbore Position Uncertainty #1a DDQUD.Drilling.Uncertainty
Trajectory #1c DDQUD.Drilling.Trajectory utilizes Depth Interval #1c DDQUD.Drilling.DepthInterval
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