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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 |
|---|---|---|---|---|
| LWD #1 | DDQUD.Drilling.FormationLoggingTool | has a | LWD log #1 | DDQUD.Drilling.FormationLog |
| Wellbore #1 | DDQUD.Drilling.WellBore | has a | Corrected LWD log #1 | DDQUD.Drilling.FormationLog |
| Wellbore #1 | DDQUD.Drilling.WellBore | has a | Operation (drilling) #1 | DDQUD.Drilling.ActualOperation |
| WL Logging Tool #1 | DDQUD.Drilling.FormationLoggingTool | has a | WL log #1 | DDQUD.Drilling.FormationLog |
| WireLine #1 | DDQUD.Drilling.WireLine | belongs to | Operation (wireline) #1 | DDQUD.Drilling.ActualOperation |
| DrillString #1 | DDQUD.Drilling.DrillString | has a | LWD #1 | DDQUD.Drilling.FormationLoggingTool |
| WL Logging Tool #1 | DDQUD.Drilling.FormationLoggingTool | is corrected by | Depth Correction #1 | DDQUD.Drilling.DepthCorrection |
| Corrected LWD log #1 | DDQUD.Drilling.FormationLog | is corrected from | LWD log #1 | DDQUD.Drilling.FormationLog |
| WL Logging Tool #1 | DDQUD.Drilling.FormationLoggingTool | is corrected by | Depth Correction #2 | DDQUD.Drilling.DepthCorrection |
| WireLine #1 | DDQUD.Drilling.WireLine | has a | WL Logging Tool #1 | DDQUD.Drilling.FormationLoggingTool |
| Corrected LWD log #1 | DDQUD.Drilling.FormationLog | is corrected using | WL log #1 | DDQUD.Drilling.FormationLog |
| DrillString #1 | DDQUD.Drilling.DrillString | belongs to | Operation (drilling) #1 | DDQUD.Drilling.ActualOperation |
| Wellbore #1 | DDQUD.Drilling.WellBore | has a | Operation (wireline) #1 | DDQUD.Drilling.ActualOperation |
Nodes
Plain english description
| LWD #1 is of type DDQUD.Drilling.FormationLoggingTool |
| LWD log #1 is of type DDQUD.Drilling.FormationLog |
| LWD #1 has a LWD log #1 |
| Wellbore #1 is of type DDQUD.Drilling.WellBore |
| Corrected LWD log #1 is of type DDQUD.Drilling.FormationLog |
| Wellbore #1 has a Corrected LWD log #1 |
| Operation (drilling) #1 is of type DDQUD.Drilling.ActualOperation |
| Wellbore #1 has a 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 has a WL log #1 |
| WireLine #1 is of type DDQUD.Drilling.WireLine |
| Operation (wireline) #1 is of type DDQUD.Drilling.ActualOperation |
| WireLine #1 belongs to Operation (wireline) #1 |
| DrillString #1 is of type DDQUD.Drilling.DrillString |
| DrillString #1 has a LWD #1 |
| Depth Correction #1 is of type DDQUD.Drilling.DepthCorrection |
| WL Logging Tool #1 is corrected by Depth Correction #1 |
| Corrected LWD log #1 is corrected from LWD log #1 |
| Depth Correction #2 is of type DDQUD.Drilling.DepthCorrection |
| WL Logging Tool #1 is corrected by Depth Correction #2 |
| WireLine #1 has a WL Logging Tool #1 |
| Corrected LWD log #1 is corrected using WL log #1 |
| DrillString #1 belongs to Operation (drilling) #1 |
| Wellbore #1 has a Operation (wireline) #1 |