发明授权
- 专利标题: Choke valve assembly for downhole flow control
- 专利标题(中): 节流阀组件,用于井下流量控制
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申请号: US10321288申请日: 2002-12-17
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公开(公告)号: US06860330B2公开(公告)日: 2005-03-01
- 发明人: Stephen L. Jackson
- 申请人: Stephen L. Jackson
- 申请人地址: US TX Houston
- 专利权人: Weatherford/Lamb Inc.
- 当前专利权人: Weatherford/Lamb Inc.
- 当前专利权人地址: US TX Houston
- 代理机构: Moser, Patterson & Sheridan, L.L.P.
- 主分类号: E21B23/00
- IPC分类号: E21B23/00 ; E21B34/14
摘要:
A choke valve assembly is disclosed for controlling the flow of fluid through a production tubing. The valve assembly includes a housing having a plurality of axially aligned apertures and a ported sleeve disposed in the housing. The ported sleeve has a plurality of rows of fluid ports. Each row of ports has at least one port in selective fluid communication with a respective aperture. In the full open position, each aperture is in fluid communication with a port from each row. To choke the flow, the ported sleeve is rotated relative to the housing to reduce the number of ports in fluid communication with the housing. To close the valve, axial force is applied to move the ported sleeve axially relative to the housing.
公开/授权文献
- US20040112608A1 Choke valve assembly for downhole flow control 公开/授权日:2004-06-17
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