发明授权
- 专利标题: Dynamic inflatable sealing device
- 专利标题(中): 动态充气密封装置
-
申请号: US11162559申请日: 2005-09-14
-
公开(公告)号: US07387157B2公开(公告)日: 2008-06-17
- 发明人: Philippe Gambier , Jose F. Garcia , John Whitsitt
- 申请人: Philippe Gambier , Jose F. Garcia , John Whitsitt
- 申请人地址: US TX Sugar Land
- 专利权人: Schlumberger Technology Corporation
- 当前专利权人: Schlumberger Technology Corporation
- 当前专利权人地址: US TX Sugar Land
- 代理商 Henry L. Ehrlich; Bryan P. Galloway; Tim Curington
- 主分类号: E21B33/127
- IPC分类号: E21B33/127
摘要:
A dynamic inflatable sealing device for maintaining the pressure within an inflatable element at least substantially equal to the pressure in the annulus to maintain the inflatable element in a sealing position. The dynamic sealing device includes an inflatable element forming an internal chamber, the inflatable element expandable to sealing engagement with a wall, and a dynamic valve mechanism in operational connection between the internal chamber and exterior of the internal chamber substantially communicating the pressure external of the inflatable element to the internal chamber.
公开/授权文献
- US20070056749A1 Dynamic Inflatable Sealing Device 公开/授权日:2007-03-15