DOI: 10.2172/840520
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Abstract: To construct the well, a 1.22-meter-diameter surface conductor hole was dry-hole augered and cased off to a depth of 35.7 meters below the surface. A 47-centimeter-diameter surface hole was then rotary-drilled to the depth of 488 meters and cased off to the depth of 333.2 meters. The hole diameter was then decreased to 31.1 centimeters, and the borehole was advanced to a depth of 652.6 meters and cased off to a depth of 577.8 meters. Hole size was reduced again to 25.1 centimeters for drilling to a total depth…

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