| 摘要 |
<p>A system (10) is described for offloading LNG (liquified natural gas) from a tanker (13) for eventual delivery to an onshore gas distribution station (42). The system includes a floating structure (12) that floats at the sea surface and that is connected to the tanker so they weathervane together. The floating structure carries a regas unit (22) that heats the LNG to produce gas, and delivers the gas through a riser (32) to an underground cavern (30) that stores the gas. Gas from the cavern is delivered through a seafloor pipeline (40) to an onshore gas distribution station. The regas unit includes water pumps and other equipment that is powered by electricity. The electricity can be obtained from an electric generator (200) on the floating structure, with surplus electricity delivered through a seafloor electric power line (194) that extends at least partially along the seafloor to an onshore electricity distribution facility (192). The electricity can instead be obtained by delivery from an onshore facility though a seafloor electric power line that extends up to the floating structure and to the regas unit.</p> |
