发明名称 COLLAPSE SENSING CHECK VALVE
摘要 A method and apparatus for a pressure relief valve assembly. The valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. The valve assembly is a one-way valve assembly that relieves pressure within an annulus formed between adjacent casings and/or tubular members to prevent burst or collapse of the casings and/or tubular members. The valve assembly is resettable downhole.
申请公布号 US2012273225(A1) 申请公布日期 2012.11.01
申请号 US201213458192 申请日期 2012.04.27
申请人 LOGIUDICE MICHAEL;SYMMS JOSHUA VERNON;LIRETTE BRENT J.;SCOTT THAD JOSEPH;RING LEV 发明人 LOGIUDICE MICHAEL;SYMMS JOSHUA VERNON;LIRETTE BRENT J.;SCOTT THAD JOSEPH;RING LEV
分类号 E21B34/08 主分类号 E21B34/08
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