| 摘要 |
<p>1,179,808. Storing and discharging liquids and gases under pressure. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug.6, 1968 [Aug.8, 1967], No.37478/68. Heading F1R. A method of storing oil and gas hydrocarbons in, and removing them from, underground salt caverns, e.g. at an off-shore oil well site, comprises supplying the oil and gas mixture from the well to a first cavern 11 containing water, storing the oil-gas mixture in the cavern under suitable pressure and temperature conditions so that the oil and gas separate into layers, removing the gas layer and injecting it into a gas pipe-line 13 leading to a shore terminal and having a flow controller 27, discharging the oil layer under the gas layer pressure to a second cavern 14, via pipe 15, and directing gas from stream 13 into a third cavern 16 to discharge brine from cavern 16 through pipe 18 into cavern 14 to displace the oil from cavern 14 through pipe 19 e.g. to a tanker. To maintain the gas flow through pipe-line 13, brine is moved from cavern 14 back to cavern 16 to return gas from cavern 16 to pipe-line 13 via pipe 17. A gas separation and recompression apparatus (20, 21), may be incorporated in oil transfer pipe 15, Fig.2 (not shown), the compressed gas being fed into gas pipeline 13. An oil metering device (24) may be incorporated in the junction between pipes 15 and 19. The pipework and other apparatus associated with the caverns may be located on platforms anchored to the sea bed, with the oil discharge pipe 19 connected to a buoy, Figs.3 and 4 (not shown).</p> |
