| 摘要 |
<p>A packer for use in a subterranean well is adapted for service under high temperature and high pressure operating conditions. Improved retention of the packer in the wellbore is achieved by use of a slip/wedge system comprising: a slip (100) having a longitudinal center and two ends; and a plurality of wedges (52,88), said wedges (52,88) being operably associated with said slip (100), said wedges (52,88) being capable of applying load transmitted to it to said center of said slip (100) first, and as the load being transmitted to said wedges (52,88) increases, increasing the load transmitted to said slip (100), and as the load on said wedges (52,88) increases the corresponding load on said slip (100) being progressively spread from said center of said slip (100) to said ends of said slip (100). A locking assembly can be provided to lock the packer in the deployed position. <IMAGE></p> |
