发明名称 |
Blade seal for a shearing blind ram in a ram type blowout preventer |
摘要 |
A blade seal for a shearing blind ram designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. The blowout preventer has a body with an axial bore, a pair of opposing bonnet assemblies and a pair of opposing rams laterally moveable within the bonnet assemblies by a pressurized fluid source to control flow of well fluids through the blowout preventer body axial bore. The blade seal includes a generally planar shaped central member that tapers from one end to the other and is constructed of rubber. A pair of metal caps are bonded to the lateral edges of the blade seal to aid in preventing extrusion. The lower face of the rubber central member includes a groove adjacent to the metal cap to aid in preventing extrusion of the rubber. A pair of the blade seals is used in the upper ram of the shearing blind ram assembly. The opposing lower ram has a upwardly facing surface that seals against the pair of blade seals after the pipe is sheared.
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申请公布号 |
US6158505(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19990386578 |
申请日期 |
1999.08.30 |
申请人 |
COOPER CAMERON CORPORATION |
发明人 |
ARAUJO, RAUL |
分类号 |
E21B33/06;(IPC1-7):E21B29/08 |
主分类号 |
E21B33/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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