Patent · US Expired

Filter for subterranean wells

US6352111B1 · kind B1 · utility

21Cited by

19References

19Claims

0Family size

Assignee

Weatherford/Lamb, Inc. · US

Inventors

Jeffrey Bode · Diemelstraße, US
J. Gary Fontenot · Conroe, US
Bill Rouse · Conroe, US
Joe Jordon · Willis, US

Key dates

Filing date	Jan 11, 2000
Grant date	Mar 5, 2002
Priority date	—
Expiry date	Jan 11, 2020

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/086
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A subterranean filter to remove particles from production fluid in a well includes a perforated inner member, at least one filter membrane made of a non-woven polymer material and a metal braided layer installed around the membrane and inner member to provide a filter having improved permeability and resistance to chemical and physical forces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.