Geothermal energy

• Publisher: Elsevier Science
• Year: 2002
• Weight: 188 KB
• Volume: 43
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(02)86625-5

✦ Synopsis

ca. 5°C in bps. These results are discussed in terms of the fatty acid composition of the esters and oils. Calibrations showed that the TGA/ laser orifice capsule method gave accuracy of rt5%. Geothermal energy 02/02934 Cost reduction of poiycrystalline diamond compact bits through improved durability Ohno, T. el al. Geofhermics, 2002, 31, (Z), 245-262. This work reports the results of laboratory drilling tests conducted in order to measure improvements due to design and cutter modifications on polycrystalline diamond compact (PDC) bits intended for use in geothermal well drilling. These tests, using 142.88 mm-diameter PDC full face bits, concentrated on improvements in bit life and cost performance.

The tests were performed using granite drilling samples and a laboratory drilling machine at atmospheric conditions. The results from changes in bit and cutter shape are reported in the work.

02/02935