| Title | Precision Directional Drilling of Hot Dry Rock Geothermal Production Well EE-3 |
|---|---|
| Authors | Carden, Richard S.; Rowley, John C.; Helmick, Catherine |
| Year | 1982 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Drilling; Hot dry Rock; USA; New Mexico; Directional Drilling; Injections; Fractures; Wellbores; Temperatures; Turbine Motors |
| Abstract | The deviated directional drilling of the hot dry rock (HDR) geothermal production well EE-3 (Energy Extraction No. 3) was successfully completed on August 1981. The injection well, EE-2, previously had been drilled with its lower part at an inclination of 35° to the vertical. It reached an online depth of 15,292 feet and its bottom hole temperature was 608°F (320°C). The production well EE-3 was required to be drilled 1200 feet (370 m) above and parallel to the injection well. This necessitated high precision, controlled trajectory directional drilling operations. The directional drilling of EE-3 way accomplished within the required tolerances at a depth of 13,933 feet and a bottom hole temperature of 580°F (280°C). |