发明名称 DRILLING STRIPPING ELEMENT
摘要 A stripping element for rotary flow control diverters used in the oil and gas industry comprising a stiffening member formed of a first harder material than a deformable member formed of a second softer material over-molded to the stiffening member. The stiffening member comprises apertures that provide for the second softer material of the deformable member to be displaced through the apertures when a pipe of a drill is displaced through the stripping element. The stiffening member comprises multiple members that stiffen the deformable member to prevent the deformable member from bending into the stripping element when a pipe of a drill is displaced through the stripping element. The multiple members can be displaced out in a direction away from the pipe of the drill when the pipe of the drill is displaced through the stripping element to prevent the stripping element from being compromised.
申请公布号 EP3134605(A1) 申请公布日期 2017.03.01
申请号 EP20150888727 申请日期 2015.07.09
申请人 Weatherford Technology Holdings, LLC 发明人 BOYD, Michael;MASTERS, Stephen;BARABASH, Andrew
分类号 E21B33/06;E21B33/068;E21B33/08 主分类号 E21B33/06
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