| 摘要 |
<p>A method is provided for reducing the water content of a natural or artificial subterranean cavern provided with (i) means for introducing a relatively dry gas into the cavern and (ii) means for withdrawing gas from the cavern. The gas-introduction means and the gas-withdrawal means each comprise a gas-transfer conduit having an open end opening to the cavern, the open end of one of the gas-transfer conduits being positioned lower than the open end of the other gas-transfer conduit, and the method in question comprises the introduction of relatively dry gas into the cavern via one of the gas-transfer conduits, and the withdrawal, via the other gas-transfer conduit, of gas having a higher water vapour content than that of the relatively dry gas which is introduced. The method is well suited to reduction of the water content of a cavern which is to be used for the storage of a fluid, such as a cavern for the storage of 'natural gas'.</p> |
