海洋水合物原位分离除砂器分离性能试验研究

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关键词：海洋水合物；原位分离除砂器；石蜡替代样试验；分离效率；性能测试中图分类号：TE95文献标识码：ADOI：10.12473/CPM.202410106

Abstract：To solve the problems of dificultyand high cost in testing the performance of in-situ separation desanderfor marine hydrates，first，the similarity theorywasused to constructatest bench for normal temperature and pressure separation based on substitute samples.Second，the paraffin was used as a substitute for gas hydrate to conduct separation and desanding tests at diferent flow rates，sand volume fractions and hydrate volume fractions.Finally，the variations ofhydrate recovery eficiency，sand removal efficiencyand pressuredrop with parameters were analyzed，and the test results were compared with numerical simulation results.The study results show that as the flow rate increases，the hydrate recovery efciency，sand removal eficiency and pressure drop all increase.As the inlet sand volume fraction increases，the sandremoval eficiencydecreases，while the hydrate recovery eficiency and pressure drop increase.Asthe inlet hydrate volume fraction increases，the sand removal effciency increases，while the hydrate recovery eficiencyand pressuredropdecrease，with all changesbeing relatively small. The maximum values of hydrate recovery efficiency and sand removal efficiency exceed 90 % ，the pressure drop is within 0.4MPa ，and the change trends of separation efficiency and pressure drop between simulated values and experimental values are consistent.The study results provide a new method for in-situ separation desander performance test，and simultaneously show that the separation desander has good adaptability to the changeof hydrate reservoir parameters，anddemonstrates broad application prospects in marine gas hydrate exploitation.

Keywords：marine hydrate；in-situ separation desander；paraffn substitute sample test；separation efficiency；performance test

0 引言

水力旋流器是重要的液固分离设备之一，广泛应用于各个工业领域，具有容量大、尺寸小、生产维护成本低、对恶劣条件适应性强等特点，在新兴行业应用潜力巨大[1-3]。（剩余9626字）