Closed loop multiphase underbalanced drilling process

Details Closed loop multiphase underbalanced drilling process Closed loop multiphase underbalanced drilling process

E - Fixed Constructions

21

B

E21B 43/40 (2006.01) E21B 21/06 (2006.01) E21B 43/34 (2006.01)

Patent

CA 2490054

The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator (110) and a separated gas stream (60) is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream is urged through a multiphase pump (200) before it is recovered. Alternatively, the return fluids may pass through a multiphase pump before it is introduced into the separator.

Cette invention se rapporte à un appareil et à des procédés de gestion des fluides remontant d'un puits . A cet effet, les fluides sont introduits dans un séparateur (110) et un flux de gaz séparé (60) est récupéré ou recyclé. Le flux de gaz peut être multiphase. Le flux de gaz séparé est amené de force à traverser une pompe multiphase (200) avant d'être récupéré. Dans une variante, les fluides remontant peuvent traverser une pompe multiphase avant d'être introduits dans le séparateur.

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