| 摘要 |
A system comprises a tubular releasably coupled to a launcher. An expansion assembly is sealingly engaged with the tubular so that the expansion assembly is moved longitudinally through the tubular by applying a pressurized fluid to the launcher. The expansion assembly radially expands the tubular as it moves longitudinally therethrough. A valve is coupled to the expansion assembly and opens when fluid pressure within an unexpanded portion of the tubular exceeds fluid pressure within the launcher. An extending member is coupled to the expansion assembly and to the launcher. The extending member restricts longitudinal movement of the expansion assembly relative to the launcher once the tubular is radially expanded. |
