发明名称 System and Method for Controlling Wellbore Pressure During Gravel Packing Operations
摘要 A technique is provided to facilitate gravel packing in a well. A conduit surrounded by a screen is deployed in an isolated lower wellbore region. The conduit cooperates with one or more valves that can be selectively opened to relieve wellbore pressure resulting from advancement of the beta wave during the gravel packing procedure. A control system enables dependable and timely opening of the one or more valves to relieve wellbore pressure and protect the surrounding formation.
申请公布号 US2007227731(A1) 申请公布日期 2007.10.04
申请号 US20060308482 申请日期 2006.03.29
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 CONTANT MATTHE
分类号 E21B43/04 主分类号 E21B43/04
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