Transcription of Drilling Technology and Costs - Energy
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CHAPTER 6 Drilling Technology and Costs Scope and Approach _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 3 Review of Geothermal Drilling Technology _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 4 Early geothermal/EGS Drilling development _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 4 Current EGS Drilling Technology _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 5 Historical Well Cost Data _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 8 General trends in oil and gas well completion Costs _ _ _ _ _ _ _ _ _ _ _ _ _ _6 9 MIT Depth Dependent (MITDD) Drilling cost index _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 12 Updated geothermal well Costs _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 17 Predicting Geothermal Well Costs with the Wellcost Lite Model _ _ _ _ _ _6 18 History of the Wellcost Lite model _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 18 Wellcost Lite model description _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 19 Drilling Cost Model Validation _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 19 Base case geothermal wells _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _6 19 Comparison with geothermal
Advances in overcoming the problems encountered in drilling in ... problems are most frequently associated with the instrumentation used to measure and control the drilling direction and with logging equipment. Until recently, electronics have had temperature limitations of about 150°C (300°F). Heatshielded instruments, which have been in ...
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