发明授权
US08127847B2 Multi-position valves for fracturing and sand control and associated completion methods
有权
用于压裂和防砂的多位置阀门以及相关的完井方法
- 专利标题: Multi-position valves for fracturing and sand control and associated completion methods
- 专利标题(中): 用于压裂和防砂的多位置阀门以及相关的完井方法
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申请号: US11949403申请日: 2007-12-03
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公开(公告)号: US08127847B2公开(公告)日: 2012-03-06
- 发明人: Bennett M. Richard , Michael H. Johnson , Peter J. Fay
- 申请人: Bennett M. Richard , Michael H. Johnson , Peter J. Fay
- 申请人地址: US TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: US TX Houston
- 代理商 Steve Rosenblatt
- 主分类号: E21B43/10
- IPC分类号: E21B43/10
摘要:
A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves one series of which can be put in the wide open position after run in for gravel packing and fracturing zones one at a time or in any desired order. These valves are then closed and another series of valves can be opened wide but with a screen material juxtaposed in the flow passage to selectively produce from one or more fractured zones. An annular path behind the gravel is provided by an offset screen to promote flow to the screened production port. The path can be a closed annulus that comes short of the production port or goes over it. For short runs an exterior screen or shroud is eliminated for a sliding sleeve with multiple screened ports that can be opened in tandem.
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