石油钻采工艺2018，Vol.40Issue(1)：111-117,7.DOI:10.13639/j.odpt.2018.01.018
稠油油藏气体辅助蒸汽吞吐研究现状及发展方向
Research status and development direction of gas assisted cyclic steam stimulation in heavy oil reservoirs
摘要
Abstract
Heavy oil is a kind of low-grade oil resource that can solve energy crisis, but its production is a global difficulty. Cyclic steam stimulation is particularly suitable for heavy oil reservoirs which are geologically complex. After multicyclic steam stimulation, however, heavy oil reservoirs are suffered from a series of problems, e.g. reservoir pressure decrease, nonuniform reservoir production and steam channeling. And assistant gas is conducive to solve these problems which occur in the late stage of cyclic steam stimulation. In this paper, the assisting mechanisms, injection-production optimization and innovative application of current cyclic steam assisting tech-nologies were reviewed, including nitrogen, CO2 , flue gas and foam. Then, their advantages and disadvantages were analyzed. Finally, it was proposed to combine nitrogen with CO2 to assist cyclic steam stimulation, and it was pointed out that the organic combination of downhole steam generator, downhole viscosity reducing unit and nitrogen is the development direction of assisted cyclic steam stimula-tion in the future. The research results provide the reference for the subsequent technical reserves and innovation.关键词
稠油油藏/蒸汽吞吐/氮气/CO2/烟道气/泡沫Key words
heavy oil reservoir/steam soak/nitrogen/CO2/flue gas/foam分类
能源科技引用本文复制引用
潘一,付洪涛,殷代印,杨二龙,韩颖..稠油油藏气体辅助蒸汽吞吐研究现状及发展方向[J].石油钻采工艺,2018,40(1):111-117,7.基金项目
2017年中国石油科技创新基金项目"基于三维储层物理模型的低渗透油藏纳米驱油提高采收率技术研究"(编号:2017D-5007-0201). （编号:2017D-5007-0201）
