多孔介质和化学剂体系中甲烷水合物相平衡预测  

Prediction of Methane Hydrate Equilibrium Conditions in Porous Media and Chemical Additives Systems

作　　者：庞维新[1,2] 孙福街 李清平 陈光进[2] 

机构地区：[1]中海油研究总院,北京100027 [2]中国石油大学重质油国家重点实验室,北京102249

出　　处：《石油学报（石油加工）》2011年第4期622-628,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家高技术研究发展计划"863"项目(2006AA09A209)资助

摘　　要：综合考虑不同种类的电解质、醇和多孔介质对甲烷水合物相平衡条件的影响,对实验室原有的纯水体系下甲烷水合物的相平衡计算模型进行了扩展,扩展后的模型可以计算电解质、醇和多孔介质或它们的混合体系下甲烷水合物的相平衡条件。单独或两种上述体系共存条件下,大量模型计算结果与文献实验值吻合较好,结合模型建立机理,推断扩展后的模型应该可以较好地预测电解质、醇和多孔介质3种复杂条件共存的情况下甲烷水合物的相平衡条件,为注剂法开采甲烷水合物藏的计算提供依据。The Chen-Guo model for calculating methane hydrate equilibrium conditions in pure water system was extended to predict the methane hydrate equilibrium conditions in a complicated water system containing electrolytes, alcohol and porous media. For some simple systems, the calculated results were in accordance with the experimental values in the literatures. According to the mechanism of model developed, it can be concluded that the extended model could predict the methane hydrate equilibrium conditions for a complicated system containing electrolytes, alcohol and porous media at the same time, and provide help for the calculation of driving force for the exploitation and dissociation of methane hydrate by chemical additives injection.

关 键 词：甲烷水合物 电解质 醇 多孔介质 相平衡 

分 类 号：TE642[石油与天然气工程—油气加工工程]