| 摘要 |
<p>A downhole apparatus and support assembly therefor is described. The downhole 5 apparatus has a radially expanding portion comprising a swellable elastomeric material selected to increase in volume on exposure to at least one predetermined fluid, and the support assembly is operable to be deployed from a first retracted position to a second expanded condition. The support assembly comprises an inner surface arranged to face the radially expanding portion, and at least a portion 10 of the inner surface is concave. In another aspect the support assembly is configured to direct a force from the swellable material to boost or energise a seal created between the radially expanding portion and a surrounding surface in use. 12 1 814 16 31 3 16 2 1830 86 32 99 40 4244 201 28tlI 24722</p> |
