| 摘要 |
The invention refers to a device for sealing an annular space formed between an outer cylindrical element ( 4 ) having an end closure ( 16 ) and an inner pipe ( 1 ) extending within the outer element and having a free end. The invention incorporates a packer element ( 2 ) being slidably disposed around said pipe ( 1 ), an actuation element ( 6 ) adapted for telescopic assembly around the outer surface of the pipe ( 1 ) and slidable from a first position to a second position, a conical ring ( 12 ) adapted for installation on the pipe ( 1 ), where the actuation element ( 6 ) comprises an abutment element ( 10 ) designed for abutment against said packer ( 2 ), and an actuation pipe ( 8 ) extending beyond the pipe ( 1 ) first end when the actuation element ( 6 ) is in said first position. The invention also refers to a method for sealing the annular space.
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