| 摘要 |
An apparatus including a plug for actuating a movable member of a device is provided. The plug (36) includes a housing (38) adapted to be lowered into the wellbore and a seal member (48) mounted on the housing. The seal member (48) is arranged to engage the movable member such that a pressure applied to the first end (40) of the housing moves the housing and the movable member. |
