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Named Semantic Graph

Name
Drilling inform G&G Personnel about TVD uncertainty from ground level
Goal
Convey TVD uncertainty in reference to ground level
Description
Tabulations of well survey data is typically to 2 decimal places when the uncertainty, at deeper depths, is in whole meters / feet and multiples thereof. This is misleading to the end user and subsurface modelling (especially cross correlation of pressures) suffers badly. A common representation of uncertainty on shared TVD data is needed to ensure end users take into account the real uncertainty

Statements

Subject Name Subject Category Predicate Name Object Name Object Category
Trajectory #3 DDQUD.Drilling.Trajectory belongs to Current Operation #1 DDQUD.Drilling.ActualOperation
Trajectory #4 DDQUD.Drilling.Trajectory is estimated using Confidence Factor #1 DDQUD.Drilling.ConfidenceFactor
Wellbore #1 DDQUD.Drilling.WellBore has a Trajectory #2 DDQUD.Drilling.Trajectory
Trajectory #1 DDQUD.Drilling.Trajectory has lower vertical bound Trajectory #4 DDQUD.Drilling.Trajectory
Trajectory #3 DDQUD.Drilling.Trajectory is extended to Section TD #1 DDQUD.Drilling.WellDepth
Trajectory #5 DDQUD.Drilling.Trajectory is estimated using Confidence Factor #1 DDQUD.Drilling.ConfidenceFactor
Trajectory #2 DDQUD.Drilling.Trajectory belongs to Current Operation #1 DDQUD.Drilling.ActualOperation
Wellbore #1 DDQUD.Drilling.WellBore has a Trajectory #1 DDQUD.Drilling.Trajectory
Wellbore #1 DDQUD.Drilling.WellBore has a Trajectory #3 DDQUD.Drilling.Trajectory
Trajectory #1 DDQUD.Drilling.Trajectory has higher vertical bound Trajectory #5 DDQUD.Drilling.Trajectory
Trajectory #1 DDQUD.Drilling.Trajectory belongs to Planned Operation #1 DDQUD.Drilling.PlannedOperation
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