| 摘要 |
PCT No. PCT/GB89/01203 Sec. 371 Date Apr. 2, 1991 Sec. 102(e) Date Apr. 2, 1991 PCT Filed Aug. 2, 1990 PCT Pub. No. WO91/02138 PCT Pub. Date Feb. 21, 1991.The invention relates to an apparatus for recovering a wellhead. The apparatus includes a housing, a latch, and a latch device actuator which are responsive to a force applied to the apparatus to separate the apparatus from the wellhead, which force will then cause the latch device to engage an external, rather than internal, profile of the wellhead so that the apparatus remains in engagement with the wellhead. The apparatus also includes a shaft which is capable of carrying a cutting mechanism to facilitate severing of the wellhead. |
