发明授权
- 专利标题: Particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making the same
- 专利标题(中): 用于井中的穿孔管的颗粒控制筛组件,砂过滤器系统及其制造方法
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申请号: US116719申请日: 1998-07-16
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公开(公告)号: US5899271A公开(公告)日: 1999-05-04
- 发明人: Anthony D. Simone , Michael J. Panciera
- 申请人: Anthony D. Simone , Michael J. Panciera
- 申请人地址: OK Tulsa
- 专利权人: Purolator Products Company
- 当前专利权人: Purolator Products Company
- 当前专利权人地址: OK Tulsa
- 主分类号: B01D29/11
- IPC分类号: B01D29/11 ; E21B43/08
摘要:
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.
公开/授权文献
- US5390465A Passthrough device with firestop 公开/授权日:1995-02-21
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