| 摘要 |
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.
|
