| 摘要 |
<p>A packer (10) for use in subterranean wellbores comprises a tubular mandrel(40), a seal ring on the mandrel, upper and lower compression members axially straddling the seal ring, a casing slip (80), upper and lower wedges (84,86) axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel. <IMAGE></p> |
