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Details

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 Subject Category Predicate Object 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

Nodes


Node Name Node Category URI
Wellbore #1 DDQUD.Drilling.WellBore
Operation (drilling) #1 DDQUD.Drilling.ActualOperation
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool
WL log #1 DDQUD.Drilling.FormationLog
DrillString #1 DDQUD.Drilling.DrillString
LWD #1 DDQUD.Drilling.FormationLoggingTool
Wellbore #1 DDQUD.Drilling.WellBore
Operation (wireline) #1 DDQUD.Drilling.ActualOperation
LWD #1 DDQUD.Drilling.FormationLoggingTool
LWD log #1 DDQUD.Drilling.FormationLog
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool
Depth Correction #1 DDQUD.Drilling.DepthCorrection
WireLine #1 DDQUD.Drilling.WireLine
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool
DrillString #1 DDQUD.Drilling.DrillString
Operation (drilling) #1 DDQUD.Drilling.ActualOperation
Corrected LWD log #1 DDQUD.Drilling.FormationLog
LWD log #1 DDQUD.Drilling.FormationLog
WL Logging Tool #1 DDQUD.Drilling.FormationLoggingTool
Depth Correction #2 DDQUD.Drilling.DepthCorrection
Wellbore #1 DDQUD.Drilling.WellBore
Corrected LWD log #1 DDQUD.Drilling.FormationLog
WireLine #1 DDQUD.Drilling.WireLine
Operation (wireline) #1 DDQUD.Drilling.ActualOperation
Corrected LWD log #1 DDQUD.Drilling.FormationLog
WL log #1 DDQUD.Drilling.FormationLog

Plain english description

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

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Operation (drilling) #1 Wellbore #1 DrillString #1 WL Logging Tool #1 LWD #1 WireLine #1 LWD log #1 Depth Correction #1 Operation (wireline) #1 Depth Correction #2 Corrected LWD log #1 WL log #1 has an actual operation has an actual operation formation logging tool has a formation log has a formation logging tool belongs to actual operation formation logging tool has a formation log formation log is corrected using real time signal formation log is corrected using real time signal formation logging tool has a formation log has a formation logging tool belongs to actual operation is corrected from formation log is corrected using formation log