Dynamic annular pressure control apparatus and method

Details Dynamic annular pressure control apparatus and method Dynamic annular pressure control apparatus and method

E - Fixed Constructions

21

B

E21B 21/08 (2006.01) E21B 44/00 (2006.01)

Patent

CA 2477242

A system and method for controlling formation pressures during drilling of a subterranean formation utilizing a selectively fluid backpressure system in which fluid is pumped down the drilling fluid return system in response to detected borehole pressures. A pressure monitoring system is further provided to monitor detected borehole pressures, model expected borehole pressures for further drilling and control the fluid backpressure system.

Système et procédé pour réguler les pressions dans une formation souterraine pendant le forage d'une formation en utilisant un système sélectif à contre-pression de liquide dans lequel le liquide est injecté par pompage dans le système de retour de liquide en réponse aux pressions détectées dans le trou de forage. D'autre part, un système de surveillance de pression sert à surveiller les pressions détectées dans le trou de forage, à modéliser les pressions attendues dans le trou de forage à des fins de forage ultérieur et à commander le système à contre-pression de liquide.

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