Downhole gas-liquid separator for wells

Details Downhole gas-liquid separator for wells Downhole gas-liquid separator for wells

E - Fixed Constructions

21

B

E21B 43/00 (2006.01) B01D 17/00 (2006.01) B01D 19/00 (2006.01) E21B 43/38 (2006.01) E21B 43/40 (2006.01)

Patent

CA 2155131

A downhole gas-liquid separator (36) for multiphase fluid producing wells (10) includes a tubular member (39) with a spiral baffle (42) disposed therein and a duct (48) including an inlet (50) disposed adjacent the discharge end (46) of the spiral baffle (42). Fluid flow into the separator (36) undergoes substantial gas an d liquid separation by centrifugal forces imposed on the liquid as it progresses through the spiral flowpath (43). Gas is drawn off at the discharge end (46) of the spiral baffle (42) and discharged into the wellbore annulus (26) while liquid and a small amount of gas pass on through the separator (36) and the production tubing (22) to the surface. The spiral baffle (42) may be disposed in the wellbore between the distal end (23) of the production tubing string and the point of entry (20) of gas and liquid into the wellbore. The separator (36) may inlcude a retrievable tubular body (80) inserted in a ported nipple (66) interposed in the tubing string (22).

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