Decision Tree Analysis of Possible Drilling Outcomes to Optimise Drilling Decisions
- Key words
- Decision tree, probability, optimisation, permeability
- Conference
- Stanford Geothermal Workshop
- Year
- 2008
- Session
- Reservoir Engineering
- Language
- English
- Paper number
- Grant
Full text
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Abstract
The distribution of permeability within geothermal fields is generally lognormal. Using distributions from field data, it is possible to determine expected results of drilling, and expected well performance. Using a decision tree of possible actions (drill/accept/sidetrack), drilling costs, and measurements of well injectivity, decision criteria based on injectivity are defined.
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