| 摘要 |
There is provided a method and apparatus for restricting flow between zones in a well, comprising providing a layer of deformable material 104 on a sand screen The sand screen may be activated using fluid deformable chambers to provide support for the sand screen such that the deformable material contacts and seals against the wall of the well. The fluid deformable material may be a swellable elastomer. The deformable chambers may be mounted on a base pipe. |
