发明授权
- 专利标题： Apparatus and methods for restricting flow in a bore
- 专利标题（中）： 用于限制孔中流动的装置和方法
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申请号： US13866650申请日： 2013-04-19
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公开(公告)号： US09140093B2公开(公告)日： 2015-09-22
- 发明人: Daniel Ford , James Fogg
- 申请人： Weatherford/Lamb, Inc.
- 申请人地址： US TX Houston
- 专利权人： WEATHERFORD TECHNOLOGY HOLDINGS, LLC
- 当前专利权人： WEATHERFORD TECHNOLOGY HOLDINGS, LLC
- 当前专利权人地址： US TX Houston
- 代理机构： Blank Rome LLP
- 优先权： GB1017914.1 20101022
- 主分类号： E21B33/06
- IPC分类号： E21B33/06 ; E21B34/06 ; E21B34/02 ; E21B34/10
摘要：
Apparatus (10) for restricting a flow of fluid through a bore (14) comprises a bore sealing member (12a) and an actuation assembly for moving the bore sealing member (12a) between first and second configurations. The actuation assembly is configured to isolate first and second end portions (46, 48) of the activation member (12a) from a bore fluid (50). The apparatus (10) provides for moving the bore sealing member (12a) between the first and second configurations without a bore fluid (50) pressure acting on an end portion (46, 48) of the activation member (12a).
公开/授权文献
- US20130228342A1 Apparatus and Methods for Restricting Flow in a Bore 公开/授权日：2013-09-05
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