| 摘要 |
<p>A casing device (1) for a borehole (2) in the ground, in which an annulus (10) is formed between the casing (1) and the wall of the borehole (2), and in which the casing (1) is provided with at least two packer groups (18', 20'), each including activatable packers (18, 20), the packers (18, 20) being formed, in their active state, to seal the annulus (10), and at least one packer group (18', 20') of the activatable packers (18, 20) being connected to sliding sleeves (37), so that at least one group of packers (18, 20) is movable relative to the casing (1).</p> |
