Combination gravel packing device and method

Details Combination gravel packing device and method Combination gravel packing device and method

1984-08-29

1985-09-17

Suchfield, George A.

Wells

Processes

Graveling or filter forming

166 51, 166317, 166325, 166334, E21B 3412, E21B 4304

Patent

active

045414840

ABSTRACT:
An apparatus for gravel packing a screen positioned adjacent the casing perforations of a subterranean well incorporates an annular sealing surface immediately above the gravel pack screen. A flapper valve is mounted for movement about a horizontal pivot axis into engagement with the annular valve seat. The flapper valve and the cooperating valve seat are both provided with spherical segment sealing surfaces so as to prevent leakage through the valve due to any misalignment of the pivot axis of the flapper valve with respect to the annular valve seat. With this apparatus, the withdrawal of the gravel packing apparatus at the completion of the gravel packing operations prevents the entry of undesired fluids and contaminates into the producing formation.

REFERENCES:
patent: 2751021 (1956-06-01), Muse
patent: 2998077 (1961-08-01), Keithahn
patent: 3032050 (1962-05-01), Clark, Jr.
patent: 4044832 (1977-08-01), Richard et al.
patent: 4103744 (1978-08-01), Akkerman
patent: 4331315 (1982-05-01), Geisow
patent: 4420041 (1983-12-01), Patel
patent: 4423773 (1984-01-01), Stout

Affiliated with

Also associated with

Rating

Combination gravel packing device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combination gravel packing device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination gravel packing device and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-365600