发明授权
- 专利标题: Method of repairing a damaged well
- 专利标题(中): 损坏井的修复方法
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申请号: US878078申请日: 1997-06-18
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公开(公告)号: US5909773A公开(公告)日: 1999-06-08
- 发明人: Paul C. Koehler , Stephen A. Geibel , Michael B. Whitlock , Reza Hashemi , Christophe A. Malbrel
- 申请人: Paul C. Koehler , Stephen A. Geibel , Michael B. Whitlock , Reza Hashemi , Christophe A. Malbrel
- 申请人地址: NY East Hills
- 专利权人: Pall Corporation
- 当前专利权人: Pall Corporation
- 当前专利权人地址: NY East Hills
- 主分类号: B01D29/11
- IPC分类号: B01D29/11 ; B01D35/26 ; B01D39/20 ; E21B29/10 ; E21B43/08 ; E21B43/10
摘要:
A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium, such as a sintered supported porous membrane, coaxially disposed about a perforated support member. The filter may also include a drainage layer disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage, surrounding the filter medium. The filter is particularly suitable for removal of sand and other particulates from fluids produced in a well.
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