水基压裂液低温破胶机理与发展应用  

Low Temperature Gel Breaking Mechanism of Water-Base Fracturing Fluid and Its Development and Application

作　　者：吴磊 WU Lei(College of Petroleum Engineering, Xi＇an Petroleum University, Xi＇an, Shaanxi 710065)

机构地区：[1]西安石油大学石油工程学院,西安710065

出　　处：《精细石油化工进展》2018年第3期13-15,20,共4页Advances in Fine Petrochemicals

基　　金：国家自然科学基金项目(51174163);陕西省统筹科技创新项目(2016KTZDGY09-06-01)资助

摘　　要：介绍了水基压裂液低温破胶剂,包括氧化破胶剂、生物酶破胶剂和复合型破胶剂。简述了氧化破胶剂和生物酶破胶剂的作用机理与影响机制;分析了金属或金属螯合物、表面活性剂以及双氧化剂破胶体系、氧化还原破胶体系、三元复合破胶体系中的复配物对氧化破胶剂过硫酸盐的活化作用;总结了氧化破胶剂、生物酶破胶剂和复合型破胶剂的现场应用效果,对低温压裂液破胶剂的发展提出了建议。Low temperature gel breakers for water-base fracturing fluid,including oxidation gel breaker,bio-enzyme gel breaker and composite gel breaker,are introduced. The action mechanism and the influencing mechanism of oxidation gel breaker and bio-enzyme gel breaker are discussed briefly; and activation action of metal or metal chelate,surfactant and double-oxidant gel breaking system,redox gel breaking system,and the compound of ternary composite gel breaking system on the oxidation gel breaker of persulfate is analyzed; the field application effect of oxidation gel breaker,bio-enzyme gel breaker and composite gel breaker are summarized; and some suggestions regarding the development of low temperature gel breakerfor fracturing fluid are presented.

关 键 词：水基压裂液 破胶剂 过硫酸盐 生物酶 破胶机理 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]