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Named Semantic Graph

Name
Rubber-banding of logs
Goal
Convey TVD uncertainty in logging depth.
Description
A set of MWD logs is to be compared to wireline logs. The MWD and Wireline log sets were measured with a different depth measurement systems, each subjected to independent stretch errors. One of the measured depths has to be stretched or shrunk by matching similar features across the MWD and wireline logs.Example from Dashevskiy et al., 2008, Dynamic Depth Correction to Reduce Depth Uncertainty and to Improve MWD/LWD Log Quality, SPE Drilling and Completions, page 13-22

Statements

Subject Name Subject Category Predicate Name Object Name Object Category
Wellbore #1 DDQUD.Drilling.WellBore has an actual operation Operation (drilling) #1 DDQUD.Drilling.ActualOperation
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool formation logging tool has a formation log WL log #1 DDQUD.Drilling.FormationLog
DrillString #1 DDQUD.Drilling.DrillString has a formation logging tool LWD #1 DDQUD.Drilling.FormationLoggingTool
Wellbore #1 DDQUD.Drilling.WellBore has an actual operation Operation (wireline) #1 DDQUD.Drilling.ActualOperation
LWD #1 DDQUD.Drilling.FormationLoggingTool formation logging tool has a formation log LWD log #1 DDQUD.Drilling.FormationLog
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool formation log is corrected using real time signal Depth Correction #1 DDQUD.Drilling.DepthCorrection
WireLine #1 DDQUD.Drilling.WireLine has a formation logging tool WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool
DrillString #1 DDQUD.Drilling.DrillString belongs to actual operation Operation (drilling) #1 DDQUD.Drilling.ActualOperation
Corrected LWD log #1 DDQUD.Drilling.FormationLog is corrected from formation log LWD log #1 DDQUD.Drilling.FormationLog
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool formation log is corrected using real time signal Depth Correction #2 DDQUD.Drilling.DepthCorrection
Wellbore #1 DDQUD.Drilling.WellBore formation logging tool has a formation log Corrected LWD log #1 DDQUD.Drilling.FormationLog
WireLine #1 DDQUD.Drilling.WireLine belongs to actual operation Operation (wireline) #1 DDQUD.Drilling.ActualOperation
Corrected LWD log #1 DDQUD.Drilling.FormationLog is corrected using formation log WL log #1 DDQUD.Drilling.FormationLog
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