| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of partially liquefying a fluid G which consists at least partially of hydrocarbons. SOLUTION: This method of partially liquefying the fluid G which consists at least partially of hydrocarbons comprises simultaneously forming two fractions: a liquid fraction existing as a liquid after expansion; and a gas fraction in an amount of at least 10 wt.% based on the total weight of the liquid G initially charged into this method. In this method, at least a part of the gas fraction is used for generating electricity or reinjected into a zone where the fluid is recovered. Further, the method includes at least two cooling processes: a first process where the fluid consisting essentially of the gas is cooled by using an external cooling medium (M) so that at least a part of the fluid exists in a liquid state under an operational pressure when the first process is finished; and a second process where the liquefaction of the above fluid is, if necessary, made to be completed and the fluid is supercooled by using a part of the fluid. |
