Drilling method

Details Drilling method Drilling method

E - Fixed Constructions

21

B

E21B 7/24 (2006.01) E21B 29/06 (2006.01) E21B 44/00 (2006.01)

Patent

CA 2680894

A drilling method comprises controlling operation of a drill string to maintain at least a portion of the drill string in forward whirl.

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