February 10, 2016 - NASA
2016-11-3 · casing advance (ARCA) or dual rotary drilling have been selected as the preferred drilling techniques for the proposed well. The d iameter of the borehole will be 11 in. Advancement of drive casing with these methods will stabilize the borehole during drilling with no, or only minor, use of polymeric or bentonite additives. A final
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