Costs of Drilling Deep Wells in Granite in the United Kingdom
- Key words
- Economics; Financing; Drilling; United Kingdom; O & M; Insurance
- Location
- United Kingdom
- Conference
- Geothermal Resources Council Transactions
- Year
- 1987
- Session
- Drilling; Deep drilling; Economics; Granite
- Language
- English
Abstract
The costs of drilling HDR doublets to depths of between three and eight kilometers in granite rocks in the U.K. have been estimated. The estimating method uses a model of the drilling process which determines drilling times, quantities of materials etc. and combines these with unit costs to give the overall costs. Drilling time have been forecast using the experience of drilling wells to two km in Cornwall. The results indicate that overall drilling time in granite could be lower than time to drill to similar depths in sedimentary formations.
Copyright 1987, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.