Wells – Means for forming filter beds
Patent
1981-07-17
1984-01-03
Novosad, Stephen J.
Wells
Means for forming filter beds
166317, 166326, 166373, E21B 3412, E21B 4304
Patent
active
044237731
ABSTRACT:
A formation protection valve is normally held in an open position relative to an annular elastomeric valve seat by an inserted wash pipe during performance of a gravel packing operation in a subterranean well. Upon removal of the wash pipe, a valve head swings downwardly to a sealing position on an annular elastomeric valve seat. A valve seat support structure is mounted below the annular valve seat to provide support of the inner periphery of the annular valve seat against downward fluid pressure forces exerted on the valve head. The elastomeric valve seat is shearable by a subsequently inserted tubing string, which also effects the displacement of the valve seat support structure to a radially outwardly disposed position wherein it no longer interferes with the passage of the tubing string therethrough.
REFERENCES:
patent: 2101640 (1937-12-01), Chonette et al.
patent: 2187487 (1940-01-01), Burt
patent: 2651369 (1953-09-01), Abendroth et al.
patent: 2652117 (1953-09-01), Arendt et al.
patent: 3062284 (1962-11-01), Brown
patent: 3421586 (1969-01-01), Solum
patent: 3957114 (1976-05-01), Streich
patent: 4122898 (1978-10-01), Nelson
Baker International Corporation
Novosad Stephen J.
LandOfFree
Single acting subterranean well valve assembly with conduit flui does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single acting subterranean well valve assembly with conduit flui, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single acting subterranean well valve assembly with conduit flui will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1028629