氮气泡沫调驱提高稠油采收率实验--以秦皇岛32-6油田为例  

Experimental study on nitrogen foam flooding to enhance oil recovery in heavy oil reservoir-taking Qinhuangdao 32-6 Oiifield with heavy oil as an example.

作　　者：彭昱强[1,2] 沈德煌[1] 徐绍诚[2] 韩冬[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中海油田服务股份有限公司,北京101149

出　　处：《油气地质与采收率》2008年第4期59-61,65,共4页Petroleum Geology and Recovery Efficiency

基　　金：中海油田服务股份有限公司科技攻关项目“氮气泡沫调驱提高采收率物模数模研究”(JSKF2004YJ23)

摘　　要：为了改善秦皇岛32—6油田的水驱开发效果,开展了氮气泡沫调驱提高稠油采收率室内实验研究。通过泡沫剂的静态性能和动态性能评价,筛选出泡沫剂及其配方。在此基础上,研究了氮气泡沫的驱油特点。研究结果表明,在气液比为1:2时,氮气泡沫的阻力因子大于160,泡沫剂的最佳质量分数为0.3%～0.5%。氮气泡沫调驱能够较好地改善水驱效果,在水驱的基础上提高原油采收率达26%。Nitrogen foam flooding for enhancing oil recovery was studied by laboratory experiment to improve water flooding efficiency in Qinhuangdao 32-6 Oilfield with heavy oil.Foam agent and for- mulation were selected after the static and dynamic performance was evaluated.Then nitrogen foam flooding was researched by observing its character in cores.The resistance factor of nitrogen foam was bigger than 160 and the best foam agent concentration was between 0.3% and 0.5% when the ratio of gas-to-liquid was 1:2.Nitrogen foam flooding eouht obviously improve water flooding efficiency,and increase recovery by 26% than that of water flooding.

关 键 词：氮气泡沫 泡沫调驱 泡沫剂 秦皇岛32—6油田 海上稠油油田 

分 类 号：TE357.42[石油与天然气工程—油气田开发工程]