一种泡沫酸体系在大路沟二区的研究与应用  

Research and Application of A Novel Foamed Acid System in Dalugou Area

作　　者：齐亚民[1] 刘玉梅 王安宁 蒋文学[4] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]中石油长庆油田分公司油田开发处,陕西西安710018 [3]中石油长庆油田分公司第三采气厂,内蒙古乌审旗017300 [4]中石油川庆钻探钻采工程技术研究院低渗透油气田勘探开发国家工程实验室,陕西西安710018

出　　处：《石油天然气学报》2014年第9期152-155,8,共4页Journal of Oil and Gas Technology

基　　金：国家油气重大专项(2011ZX05013-005)

摘　　要：针对绥靖油田大路沟二区储层酸化解堵增产措施存在问题,室内开发出一种起泡剂并建立了一套适合于大路沟二区泡沫酸酸液体系。评价表明,该泡沫酸酸液体系具有良好的配伍性、起泡和稳泡性、分流转向性能、低表/界面张力,有利于提高酸液均匀布酸效果,降低储层残酸滞留,减少酸液储层伤害。截至2014年1月在大路沟二区进行了3口井现场试验,泡沫酸化后平均单井日增油1.28t,平均单井累计增油185.6t,取得了较好的试验效果。To solve the problems of stimulation treatment and blocking removal in the reservoirs of Second Dalugou Area in Suijing Oilfield,a novel foaming agent was developed in laboratory and a foamed acid liquid system was established for the reservoir.Evaluation shows that the foaming agent has good acid resistance,salinity resistance and oil resistance.The system also has good compatibility,surface/interfacial tension,shunting action,foaming and foam stability performance,and it is favorable for improving the effect of uniform distribution of acid,reducing retention of reacted acid and formation damage.It is tested in 3wells in Second Dalugou Area,single well production increases 1.28t/d after it is acidized and cumulative oil production increase is 185.6tand good effect is obtained in field test.

关 键 词：泡沫酸化 泡沫扫描 分流转向 岩心伤害 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]