Invention Grant
US08408319B2 Control swelling of swellable packer by pre-straining the swellable packer element
失效
通过预膨胀膨胀型封隔器元件来控制可膨胀封隔器的膨胀
- Patent Title: Control swelling of swellable packer by pre-straining the swellable packer element
- Patent Title (中): 通过预膨胀膨胀型封隔器元件来控制可膨胀封隔器的膨胀
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Application No.: US12643597Application Date: 2009-12-21
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Publication No.: US08408319B2Publication Date: 2013-04-02
- Inventor: Kuo-Chiang Chen , John Whitsitt
- Applicant: Kuo-Chiang Chen , John Whitsitt
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Rodney Warfford; Tim Curington
- Main IPC: E21B33/12
- IPC: E21B33/12 ; E21B23/00
Abstract:
A swellable packer including a first retainer, a second retainer, a swellable element, a piston, and a piston lock. The second retainer is spaced axially apart from the first retainer. The swellable element is at least partially disposed between and fixed to the first and second retainers. The piston is fixed to the second retainer and configured to move the second retainer from a first position in which the swellable element is unstrained, to a second position in which the swellable element is strained. The piston lock is configured to releasably fix the second retainer in the second position.
Public/Granted literature
- US20110147014A1 CONTROL SWELLING OF SWELLABLE PACKER BY PRE-STRAINING THE SWELLABLE PACKER ELEMENT Public/Granted day:2011-06-23
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