Wells – Screens – Woven mesh
Patent
1996-08-08
1998-07-21
Neuder, William P.
Wells
Screens
Woven mesh
166236, E21B 4308
Patent
active
057822999
ABSTRACT:
A particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making same are provided. The screen assembly includes a woven mesh filter media disposed about the perforated pipe, and a protective wrapper disposed about the filter media. The protective wrapper comprises an outer perforated layer and an inner layer that is disposed between the outer layer and the filter media. A surface of the inner layer that faces the outer perforated layer has a non-smooth contour, with this surface of the inner layer having portions in direct contact with an inner surface of the outer layer. The inner layer is provided with apertures that are disposed in such a way that fluid cannot flow from the outer surface of the outer perforated layer directly radially both through holes of the outer layer and through the apertures of the inner layer.
REFERENCES:
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patent: 4821800 (1989-04-01), Scott et al.
patent: 5232048 (1993-08-01), Whitebay et al.
patent: 5411084 (1995-05-01), Padden
patent: 5624560 (1997-04-01), Voll et al.
patent: 5642781 (1997-07-01), Richard
Panciera Michael J.
Simone Anthony D.
Neuder William P.
Purolator Products Company
Tassone Joseph V.
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