油包水乳状液中水合物形成模型研究进展

发布时间：2018-09-15 20:21

【摘要】：一旦水合物引起管道堵塞,将给深海油气资源输送安全造成严重威胁,因此,定量预测不同工况下水合物的形成尤为重要,但是目前气体水合物形成的动力学机理尚不明确。系统阐述了国内外油包水体系中水合物形成动力学的研究进展,着重介绍了气体水合物在以油相为主体的油-气-水多相体系中成核与生长的动力学模型,分析了主要模型的优点和局限性。基于油包水乳状液体系中气体水合物形成动力学的研究现状,提出多相体系中水合物形成研究应该从传质和本征反应的耦合机理入手,并结合不同尺度下的试验研究,考虑多相体系中的形成物理过程、传质与传热限制,建立适用性更广的水合物形成模型,从而为管道的流动安全提供理论支撑。
[Abstract]:Once hydrates cause pipeline blockage, it will pose a serious threat to the safety of deep-sea oil and gas resource transportation. Therefore, it is particularly important to quantitatively predict the formation of gas hydrate under different operating conditions, but the kinetic mechanism of gas hydrate formation is not clear at present. The research progress of hydrate formation kinetics in oil-in-water system at home and abroad is systematically reviewed, and the kinetic model of gas hydrate nucleation and growth in oil-gas-water multiphase system with oil phase as the main body is emphatically introduced. The advantages and limitations of the main models are analyzed. Based on the research status of gas hydrate formation kinetics in oil-in-water emulsion system, it is proposed that the study of hydrate formation in multiphase system should begin with the coupling mechanism of mass transfer and intrinsic reaction, and combine with the experimental study at different scales. Considering the physical process of formation, mass transfer and heat transfer in multiphase system, a more applicable gas hydrate formation model is established, which provides theoretical support for the flow safety of pipeline.
【作者单位】：中国石油大学(北京)城市油气输配技术北京市重点实验室/油气管道输送安全国家工程实验室/石油工程教育部重点实验室;中国石油北京油气调控中心;
【基金】：国家科技十三五重大专项“海上管道降凝输送及流动管理技术研究”,2016ZX05028-004-001 国家自然科学基金重点项目“含蜡原油常温输送机理及流动改性方法研究”,51534007
【分类号】：TE832

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