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U.S. Department of Energy
Office of Scientific and Technical Information

Gravel pack screen having retention means and fluid permeable particulate solids

Patent ·
OSTI ID:5797627
This patent describes an apparatus for use on a subterranean well conduit to prevent particulate matter in the well of a pre-determinable size from passing into the conduit with the well production fluids. It comprises a cylindrically shaped inner tubular member having an interior wall and an exterior wall; a fluid flow passageway defined within the interior wall of the tubular member; fluid flow passage means extending from the interior of the tubular member through the exterior wall of the tubular member and in communication with the fluid flow passageway; retention means disposed around the exterior wall of the tubular member and passing across the fluid flow passage means, and having fluid flow openings therethrough; a fluid permeable bed of particulate solids around the exterior of the retention means sized to prevent effectively all such particulate matter in the well from passing inwardly with the production fluids through the fluid permeable bed and through the fluid flow passage means and into the fluid flow passageway when the conduit and the apparatus are positioned within the subterranean well, whereby the openings in the retention means are sized to prevent the particulate solids of the fluid permeable bed from passing into the fluid flow passage means and into the fluid flow passageway and further sized to permit any particulate matter in the well passing through the fluid permeable bed to pass through the retention means and through the subterranean well conduit.
Assignee:
Baker Hughes Inc., Houston, TX (United States)
Patent Number(s):
A; US 5050678
Application Number:
PPN: US 7-427710
OSTI ID:
5797627
Country of Publication:
United States
Language:
English