游离水的计量直接影响进口原油船舱计重的准确性,本文将船舱底部油水结构进行放大分析,提出船舱游离水的计量应该包括对乳状液中的含水和游离水两部分的总和这一观点,并对比分析了两种船舱游离水计量方法的原理及优缺点,为规范游离水的计量提出建议。 The measurement of free water directly affects the accuracy of the tanker’s weight of imported crude oil. In this paper, the oil-water structure at the bottom of the tank is enlarged and analyzed. It is proposed that the measurement of free water in the cabin should include the sum of the two parts of water and free water in the emulsion. The principles, advantages and disadvantages of two methods of measuring free water in cabin are compared and analyzed, and suggestions are put forward to standardize the measurement of free water.