Key Technology for High Temperature Geothermal Drilling in Turkey

Abstract:

Countries worldwide are increasing the exploitation of high temperature geothermal resources, due to their wide distribution, cleanliness and environment-friendliness. During drilling of the high temperature geothermal well of Geo2E, a geothermal power generating project of the Turkish company ECOLOG, research has been conducted on some drilling techniques to tackle high temperature geothermal drilling difficulties from various aspects, such as well structure design, drilling rate improvement, high-temperature resistant drilling fluid, safety drilling technology; and field application of these techniques has achieved good results. The successful high temperature geothermal drilling experiences in this area can be drawn on to enhance the economical and effective utilization of high temperature geothermal resources in China.

Key words:high temperature geothermal; drilling technology; technical difficulties; drilling rate improvement; Turkey