| 摘要 |
<p>A technique for repairing or modifying a pipeline (1) is described where a plug of gel (12, 13) is formed inside the pipeline (1), by injection of gel through the pipeline wall, to restrict the fluid contained in the pipeline (1) from accessing at least one repair or modification location (16) along a length of the pipeline (1). At least one repair or modification operation may be performed on the pipeline (1) at the repair or modification location (16) to repair or modify the pipeline (1).</p> |
