Prospects of Geothermal Well Drilling by Melting Rocks
- Key words
- rock melting, high temperature penetration, wellbore sealing
- Conference
- World Geothermal Congress
- Year
- 1995
- Session
- SECTION 5 - Drilling and Completion Technology
- Language
- English
- Paper number
- 2-Litvinenko
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Abstract
Drilling of exploratory or production wells at geothermal fields is frequently accompanied by uncontrolled lost circulation as well as steam or steam and water mixture blowouts. These complications are caused by direct contact of the wellbore formed while drilling with open drainage channels in the formations drilled through from, witch fluids can easily enter into the well or flow out of it. A new method of drilling by rock melting using high temperature penetrations has the advantage that provides sealing of fractures or other loss zones in the wellbore wall simultaneous with drilling by compacting, baking and melting of the rocks drilled.
Copyright 1995, International Geothermal Association. 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.