Fluid loss control system for gravel pack assembly

Details Fluid loss control system for gravel pack assembly Fluid loss control system for gravel pack assembly

1992-11-04

1994-08-09

Britts, Ramon S.

Wells

Processes

Graveling or filter forming

166387, 166 51, 166120, E21B 4308, E21B 4310

Patent

active

053357272

ABSTRACT:
An auger gravel pack assembly for installation in a gravel packed well includes a fluid loss control closure member retained in a body disposed in a tubing assembly or "work string" between the gravel pack screen and a running tool and cup-packer assembly. A ball-type closure member is retained by releasable fingers connected to a piston which is responsive to fluid pressure applied through the work string to effect release of the closure ball to engage a seat and substantially prevent flow of fluid from the work string or the wellbore annulus into and through the gravel pack screen after installation of the screen into the gravel pack. Ports in the assembly above the closure member allow fluid to flow between the wellbore annulus and the work string to prevent pressure buildup between the gravel pack and the cup-packer during installation of the screen.

REFERENCES:
patent: 3913675 (1975-10-01), Smyrl
patent: 3987854 (1976-10-01), Callihan et al.
patent: 3997006 (1976-12-01), Wetzel
patent: 4628993 (1986-12-01), Zunkel
patent: 4726419 (1988-02-01), Zunkel
patent: 4823882 (1989-04-01), Stokley et al.
patent: 4856591 (1989-08-01), Donovan et al.
patent: 4869325 (1989-09-01), Halbardier
patent: 5036920 (1991-08-01), Cornette et al.

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