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公开(公告)号:US20150315870A1
公开(公告)日:2015-11-05
申请号:US14420274
申请日:2012-09-12
CPC分类号: E21B34/06 , E21B34/08 , E21B2034/002 , F16K5/0657
摘要: A composite wellbore ball valve has a spherical, fiber reinforced composite ball valve closure. The closure has an interior, central through-bore and an annular metallic sealing surface. A ball carrying assembly has an annular, metallic sealing seat surface adapted to contact and form a metal-to-metal seal with the metallic sealing surface of the ball valve closure when the ball valve closure is closed.
摘要翻译: 复合井眼球阀具有球形,纤维增强复合球阀闭合。 封闭件具有内部,中心通孔和环形金属密封表面。 球携带组件具有环形的金属密封座表面,当球阀关闭时,该表面适于与球阀闭合件的金属密封表面接触并形成金属对金属密封。