二氧化碳在油藏流体中的扩散系数研究进展  

Research Progress of the Diffusion Coefficient of Carbon Dioxide in Reservoir Fluids

作　　者：王少朋 侯吉瑞 赵凤兰 苑光宇 刘刚[1] 江杰[2] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,中国石油大学提高采收率研究院,北京102249 [2]中国石油塔里木油田勘探开发研究院,新疆库尔勒841000

出　　处：《油田化学》2013年第1期150-154,160,共6页Oilfield Chemistry

基　　金：国家973项目"温室气体提高石油采收率的资源化利用及地下埋存"(项目编号2006CB705805);国家自然科学基金"CO_2在多孔介质中扩散规律的影响因素及机理研究"(项目编号50804052)

摘　　要：回顾了CO_2在油藏流体中扩散的国内外研究进展。简述了气体在液体中扩散系数的测定原理和实验方法,并比较了常见方法的优缺点,对于其在油藏流体中CO_2的扩散过程的适用性进行了研究。总结了CO_2在不同性质油藏流体中的分子扩散系数,讨论了影响扩散系数的主要参数和扩散系数的变化规律,给出了不同特定条件下的一些关联式。最后,针对国内真实油藏情况和扩散研究的缺乏,探讨了高温高压下测定扩散系数方法的优选,为今后的研究提供参考。The international research progress of the diffusion coefficient of C02 in reservoir fluids was reviewed. The measurement principle and experimental methods for diffusion coefficient of gas in liquid were summarized. The advantages and disadvantages of common methods were compared, and the applicability of these methods in the diffusion process of CO2 in reservoir fluid was studied. The diffusion coefficients of C02 in various reservoir fluids were listed, the main affecting parameters and variation of diffusion coeffi- cients were discussed, and some typical correlations of diffusion coefficients were proposed. Finally, in view of the domestic reservoir condition and the lack of diffusion research, the optimization of experimental methods under high pressure high temperature was dis- cussed, which provided a reference for future research.

关 键 词：二氧化碳 扩散系数 测定 模型 边界条件 综述 

分 类 号：TE357[石油与天然气工程—油气田开发工程]