基本信息:
- 专利标题： HYBRID CHECK VALVE
- 专利标题（中）：混合式止回阀
- 申请号：EP14901650.3 申请日：2014-09-09
- 公开(公告)号：EP3191681A1 公开(公告)日：2017-07-19
- 发明人： ARIAN, Abbas , MACKAY, Bruce
- 申请人： Halliburton Energy Services, Inc.
- 申请人地址： 3000 N. Sam Houston Parkway E. Houston, TX 77032 US
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： 3000 N. Sam Houston Parkway E. Houston, TX 77032 US
- 代理机构： Bennett, Adrian Robert J.
- 国际公布： WO2016039728 20160317
- 主分类号： E21B34/06
- IPC分类号： E21B34/06 ; E21B21/10
摘要：
An assembly is provided that can include check valve. The check valve can include a ball positioned between an inflow line and an outflow line. The ball can be movable between (i) an open position at which a fluid is allowed to flow between the inflow line and the outflow line and (ii) a closed position at which the fluid is prevented from flowing between the inflow line and the outflow line. The assembly can also include a spring positioned adjacent to the ball and operable to bias the ball in a closed position. The assembly can further include a poppet positioned adjacent to the ball. The poppet can be movable in response to a communication of a pilot pressure to the poppet. Further, the ball can be movable to the closed position in response to a force applied by the poppet.
摘要（中）：
提供可包括止回阀的组件。 止回阀可以包括位于流入管线和流出管线之间的球。 球可以在（i）允许流体在流入管线与流出管线之间流动的打开位置和（ii）防止流体在流入管线与流出管线之间流动的关闭位置之间移动 线。 该组件还可以包括邻近球定位的弹簧并且可操作以将球偏置在关闭位置。 该组件可以进一步包括邻近球定位的提升器。 提动头可以响应于先导压力与提动头的连通而移动。 此外，响应于提动头施加的力，球可以移动到关闭位置。
公开/授权文献:
- EP3191681B1 HYBRID CHECK VALVE 公开/授权日：2019-10-30
IPC结构图谱:
| E | 固定建筑物 |
| --E21 | 土层或岩石的钻进；采矿 |
| ----E21B | 土层或岩石的钻进；从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
| ------E21B34/00 | 井眼或井的阀装置 |
| --------E21B34/06 | .在井内的 |