发明名称 SUBSURFACE VALVE HAVING AN ENERGY ABSORPTION DEVICE
摘要 <p>A system for completing a well bore, comprises, a string having a housing, a valve having a valve seat positioned within the housing, the valve seat having an inner channel, a flapper pivotally coupled to the valve seat in which the flapper is configured to move from a first open position to a second closed position such that the inner channel is at least partially obstructed. An energy dampening device is coupled to the valve seat, such that the energy dampening device is configured to at least partially absorb an impact of the flapper on the valve seat.</p>
申请公布号 WO2009120471(A1) 申请公布日期 2009.10.01
申请号 WO2009US36137 申请日期 2009.03.05
申请人 SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;GOUGHNOUR, PAUL GORDON;BIDDICK, DAVID, JAMES;MAY, DWAYNE 发明人 GOUGHNOUR, PAUL GORDON;BIDDICK, DAVID, JAMES;MAY, DWAYNE
分类号 E21B33/00 主分类号 E21B33/00
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