一种新型纳米复合清洁压裂液的研究与应用  

Research and Application of a New Nanocomposite Cleaning Fracturing Fluid

作　　者：段瑶瑶 杨战伟 杨江 代东每 崔伟香 吕杨 江淑丽[3] DUAN Yao-yao;YANG Zhan-wei;YANG Jiang;DAI Dong-mei;CUI Wei-xiang;LU Yang;JIANG Shu-li(Research Institute of Petroleum Exploration and Development, Langfang 065007 , P. R. China;Changqing Oilfield Company, PetroChina, Xi' an 710018,P. R. China;Huabei Oilfield Company , PetroChina, Renqiu 062550, P. R. China)

机构地区：[1]中油勘探开发研究院廊坊分院,廊坊065007 [2]中油长庆油田分公司,西安710018 [3]中油华北油田分公司,任丘062550

出　　处：《科学技术与工程》2016年第30期68-72,共5页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05013)资助

摘　　要：研发了一种新型表面活性剂,与助表面活性剂组成复合表面活性剂体系(VES-M)。优选了疏水缔合高分子聚合物(HMPAM)和纳米材料颗粒ZnO,形成纳米复合清洁压裂液体系,具有表面活性剂用量低、添加剂种类少的特点。室内试验表明,与常规黏弹性表面活性剂清洁压裂液相比,该体系具有更好的耐温性能及耐剪切性能,较好的降滤失性、黏弹性及携砂性;且破胶彻底、速度快,破胶后无残渣,岩心伤害率仅为9.3%。2014年在苏里格气田东二区进行现场应用,试气无阻流量均值约为其相同地质条件邻井的2.0倍,为致密气藏低伤害高效改造提供了一条有效途径。A novel supramolecular nano composite clean fracturing fluid system consisting of a new type of sur-factant(VES-M)and polyacrylamide copolymer(HMPAM)and nanoparticles(ZnO)were investigated.With the characteristics of low using concentration of surfactant and less type of additive,laboratory test showed that,com-pared with regular cleaning viscoelastic surfactant fracturing liquid,nano composite clean fracturing fluid system has higher heat resistance and shear resistance performance,enhanced fluid loss prevention,better viscoelastic and sand carrying ability,and gel breaking thoroughly and rapidly,without residues after broken.Core damage rate is only9.3%.Application was carried out successfully in the east area of Sulige gas field in2014,the mean gas open-flow capacity of test wells is about2.0times that of the same geological conditions of adjacent wells,which provides an effective way of low damage efficient stimulation for tight gas reservoir.

关 键 词：黏弹性表面活性剂 纳米复合清洁压裂液 性能评价 现场应用 增产效果 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]