Page 191 - Geothermal Energy Systems Exploration, Development, and Utilization
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3.11 Recent Developments, Perspectives in R&D 167
Figure 3.30 Vertical drilling system VDS-2 at
KTB-HB1; preparation to run in hole. (Courtesy
A. Sperber.)
Figure 3.31 Modern RSS (type ‘‘Auto-
Trac’’). (Courtesy Baker Hughes Inteq,
http://www.bakerhughesdirect.com/.)
The AutoTrak rotary closed-loop system delivers
higher penetration rates. more pracise well
placement and high-quality holes in directional and
horizontal applications.
