会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 129. 发明公开
    • Circulating valve
    • Zirkulationsmodul
    • EP0802304A1
    • 1997-10-22
    • EP97302513.3
    • 1997-04-11
    • Halliburton Energy Services, Inc.
    • Ringgenberg, Paul D.Skinner, Neal G.
    • E21B34/10
    • E21B23/006E21B34/10E21B34/102
    • Apparatus for selectively permitting and preventing fluid flow generally radially therethrough, the apparatus includes a generally tubular first member (16,18,20) having a first opening (48) formed through a sidewall portion thereof, a first outer side surface, a first radially enlarged and axially extending inner side surface, and a second radially reduced and axially extending inner side surface, the first opening providing fluid communication between the first outer side surface and the first inner side surface. The apparatus also includes a generally tubular second member (86) having a second opening (96) formed through a sidewall portion thereof, a third inner side surface, a second radially enlarged outer side surface, and a third radially reduced outer side surface, the second opening providing fluid communication between the third inner side surface and the third outer side surface. The second member (86) is axially slidably disposed within the first member (16,18,20), and the second member (86) is axially rotatable within the first member (16,18,20). A ratchet (122) selectively permits axial displacement of the first member (16,18,20) relative to the second member (86). A predetermined pressure differential across the mandrel is utilized to configure the valve in its open and closed configurations.
    • 用于选择性地允许和防止流体流动通常径向通过的设备,该设备包括大体上管状的第一构件(16,18,20),其具有通过其侧壁部分形成的第一开口(48),第一外侧表面, 扩大和轴向延伸的内侧表面,以及第二径向减小且轴向延伸的内侧表面,第一开口提供第一外侧表面和第一内侧表面之间的流体连通。 该装置还包括一个大致管状的第二构件(86),其具有通过其侧壁部分形成的第二开口(96),第三内侧表面,第二径向扩大外侧表面和第三径向缩小的外侧表面, 第二开口,提供第三内侧表面和第三外侧表面之间的流体连通。 第二构件(86)可轴向滑动地设置在第一构件(16,18,20)内,并且第二构件(86)可在第一构件(16,18,20)内轴向旋转。 棘轮(122)选择性地允许第一构件(16,18,20)相对于第二构件(86)的轴向位移。 利用心轴上的预定压力差来构造阀门的开启和关闭结构。