Rcd hydraulic stripping adapter

Details Rcd hydraulic stripping adapter Rcd hydraulic stripping adapter

E - Fixed Constructions

21

B

E21B 33/068 (2006.01) E21B 33/03 (2006.01)

Patent

CA 2672360

An adjustable sealing device including a housing configured to be engaged within an annulus of a rotating control device, at least one sealing element disposed within the housing, and a variable pressure control device configured to energize a fluid disposed within the housing to maintain a seal between the sealing element and a drill string is disclosed. A method of sealing a wellbore, the method including providing an adjustable sealing device to a rotating control device, positioning at least one sealing element of the adjustable sealing device between the wellbore and a drill string, tripping the drill string through the wellbore, sensing changes in a diameter of the drill string as it is tripped, and regulating a fluid pressure to maintain a seal between the at least one sealing element and the drill string when the drill string is tripped through the at east one sealing element is also disclosed.

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