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Keywords: rotary speed
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Proceedings Papers

Paper presented at the SPE Central Plains Regional Meeting, November 15–17, 1970
Paper Number: SPE-3155-MS
... magazines. ABSTRACT Minimum cost drilling programs have been available for about 10 years, but only recently have they been utilized to any extent. One of the principal disadvantages of most programs is that they assume rig operating costs are independent of bit weights and rotary speeds. Although the use...

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