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Keywords: solution exist
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Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, November 11–14, 2007
Paper Number: SPE-110014-MS
... calculations proceed from equation (11) . If P < 0 no solution exists for the required toolface and the critical toolface is determined from the expression (14). (12) P = sin 2 θ 2 − sin 2 τ 1 sin 2 θ 1 (13) α = 2 tan − 1 ( − cos τ 1...
