Single zone gravel packing system

Details Single zone gravel packing system Single zone gravel packing system

E - Fixed Constructions

21

B

166/9

E21B 23/06 (2006.01) E21B 33/129 (2006.01) E21B 33/1295 (2006.01) E21B 43/04 (2006.01)

Patent

CA 1272121

Abstract Of The Disclosure A setting device for a gravel packing system includes a housing having a slurry supply passage, a fluid return passage and a gravel packing port disposed therein. A weight responsive return valve is operatively associated with the housing for communicating an upper portion of the return passage with a well annulus exterior of the housing in response to reciprocation of a work string to which the setting device is attached. A hydraulic setting piston is operatively associated with the housing for setting a liner hanger of the gravel packing system in response to a first increase in fluid pressure within the supply passage of the housing. A hydraulically actuated supply valve is opera- tively associated with the housing for communicating the gravel packing port with the supply passage in response to a second increase in fluid pressure in the supply passage. The supply valve includes a sliding supply valve sleeve having an open central passageway extending therethrough open at both the lower and upper end of the sleeve. A check valve is disposed in a lower portion of the housing below the supply valve for permitting flow of return fluid upward therethrough and for preventing downward flow therethrough. The gravel packing system includes a liner hanger releasably connected to the setting device, and a liner valve connected to a lower end of the liner hanger.

529193

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