发明名称 Well Release System and Method
摘要 An improvement to a prior art sand release apparatus and method uses a pair of telescoped tubular members. In the improved system and method, the telescoped members are prevented from completely telescoping by a J-hook latch. Also in the improved system and method, a wear resistant seal prevents leakage when the telescoped members are not extended.
申请公布号 US2010236787(A1) 申请公布日期 2010.09.23
申请号 US20090405433 申请日期 2009.03.17
申请人 HALL L D 发明人 HALL L. D.
分类号 E21B43/00;E21B23/00;E21B37/00;E21B41/00 主分类号 E21B43/00
代理机构 代理人
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