Method and arrangement for improving cuttings removal and...

Details Method and arrangement for improving cuttings removal and... Method and arrangement for improving cuttings removal and...

E - Fixed Constructions

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B

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E21B 7/06 (2006.01) E21B 7/04 (2006.01) E21B 21/00 (2006.01) E21B 21/10 (2006.01) E21B 31/03 (2006.01) E21B 41/00 (2006.01)

Patent

CA 1160211

F-0737 ABSTRACT A rotary method and arrangement mitigate differential sticking of a drill string during the drilling of a wellbore and for improving cuttings removal. Tool joints are used for interconnecting joints of drill pipe together into a drill string for use in drilling the wellbore. Nozzles are provided in the tool joints or drill pipe to cause a flow of drilling fluid into the wellbore from the interior of the drill string during the drilling operation to improve removal of the cuttings from the wellbore and mitigate differential sticking of the drill string.

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