| 摘要 |
A device (10) is disclosed for setting an annular seal (25) in an annular space formed between a large diameter tubular (3) and a small diameter tubul ar (4) extending into the large diameter tubular. The device comprises a carrie r block (15) suitable to be located at a position in the large diameter tubula r proximate said annular space, the carrier block being provided with a carrie r ring (20) axially movable relative to the carrier block (15) between a first position and a second position and arranged to axially move the annular seal into the annular space upon movement of the carrier ring from the first to t he second position thereof, and further comprising an explosive charge (27) arranged to move the carrier ring (20) from the first position to the second position thereof and detonator means (29) for selectively detonating the explosive charge.
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