Wells – Screens – Woven mesh
Patent
1994-06-13
1995-05-02
Britts, Ramon S.
Wells
Screens
Woven mesh
166231, 166233, 210357, 210358, E21B 4308
Patent
active
054110840
ABSTRACT:
A sand filter for use in a well is provided employing a length of perforated tubing. A tubular wedge wire screen is telescopically positioned on the tubing covering the perforations. A plurality of tubular corrugated filter elements are then positioned on the wedge wire screen in end-to-end relationship. Each of the filter elements is formed of diffusion bonded multiple layers of wire mesh and each of the filter elements is corrugated to provide an external surface having an area at least three times the area of the cylindrical external surface of the tubular wedge wire screen that is encompassed by each filter element. The corrugated filter elements are secured on the wedge wire screen and welded in abutted end-to-end position.
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Britts Ramon S.
Purolator Products N.A., Inc.
Tsay Frank S.
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