煤矿安全2018，Vol.49Issue(1)：49-52,56,5.DOI:10.13347/j.cnki.mkaq.2018.01.013
表面活性剂在含微生物压裂液中的适用性研究
Applicability of Surfactant in Fracturing Fluid Containing Microorganisms
摘要
Abstract
High capillary pressure will be produced when the fracturing fluid containing microorganisms is pressed into coal reservoir.There is a tendency that the capillary pressure will increase as the microorganisms produce gas,which is likely to cause serious water blocking damage.In this paper,adding surfactant is adopted to control water blocking damage.The efficiency of reducing capillary pressure of coal reservoir by surfactant AN and the compatibility of surfactant AN and the fracturing fluid containing microorganisms is tested for the study of the applicability.The results show that adding surfactant AN can reduce the capillary pressure,and is beneficial to mitigate water blocking damage.On the other hand,during the gas production,surfactant AN will be consumed.Until the end of gas production,partial surfactant AN remains active which has some effects on reducing the capillary pressure,and it would not influence gas production.Therefore,adding surfactant AN to the fracturing fluid containing microorganisms is applicable.关键词
含微生物压裂液/表面活性剂/毛管压力/水锁伤害/水力压裂Key words
fracturing fluid containing microorganisms/surfactant/capillary pressure/water blocking damage/hydraulic fracturing分类
矿业与冶金引用本文复制引用
王乾,宋金星,司青,姚顺..表面活性剂在含微生物压裂液中的适用性研究[J].煤矿安全,2018,49(1):49-52,56,5.基金项目
国家自然科学基金资助项目(41472127,41472129,41502158) （41472127,41472129,41502158）
