悬浮液基高效减阻携砂压裂液的研发与应用  

Development and Application of Fracturing Fluid Based Suspension Thickener with High Efficient Drag Reduction and Proppant Transport

作　　者：麦尔耶姆古丽·安外尔 蒲迪 翟怀建 刘宽 邬国栋 余波[4] 金诚 MAIERYEMUGULI Anwaier;PU Di;ZHAI Huaijian;LIU Kuan;WU Guodong;YU Bo;JIN Cheng(Engineering Technology Research Institute,Xinjiang Oilfield Branch Company,PetroChina,Karamay,Xinjiang 834000,P R of China;Sichuan Guangya Polymer Chemical Company,Ltd,Nanchong,Sichuan 637500,P R of China;School of New Energy and Materials,Southwest Petroleum University,Chengdu,Sichuan 610500,P R of China;Baikouquan Oil Production Plant,Xinjiang Oilfield Branch Company,PetroChina,Karamay,Xinjiang 834011,P R of China)

机构地区：[1]中国石油新疆油田分公司工程技术研究院,新疆克拉玛依834000 [2]四川光亚聚合物化工有限公司,四川南充637500 [3]西南石油大学新能源与材料学院,四川成都610500 [4]中国石油新疆油田分公司百口泉采油厂,新疆克拉玛依834011

出　　处：《油田化学》2022年第3期387-392,400,共7页Oilfield Chemistry

摘　　要：为解决压裂用聚合类乳液稠化剂不耐高盐以及悬浮液稠化剂稳定性差的问题,以抗盐缔合聚合物KFPY为基础,通过考察悬浮液稠化剂的稳定时间、本体黏度,优选了体系的稳定剂,优化了粉末稠化剂粒径以及比例,最终形成悬浮液稠化剂GAF-TE组成为:48.5%白油+1.5%乳化剂G10+5%有机改性膨润土+45%抗盐缔合稠化剂KFPY。在玛18井水水质下,对悬浮液稠化剂GAF-TE的溶解性能、增黏性能、减阻性能以及配制的滑溜水体系的各项性能进行了评价。结果表明,0.1%稠化剂GAF-TE溶解时间为18 s,黏度为2.19 m Pa.s,降阻率为76.8%;配制的滑溜水体系动态携砂能力强于普通的聚丙烯酰胺乳液,体系表面张力26.8 mN/m,与煤油间的界面张力0.96 mN/m,对岩心基质渗透率伤害率为6.97%,具有低伤害特性。该缔合型悬浮液稠化剂产品在新疆油田某区块进行现场应用,表现出较好的溶解性、降阻性能和携砂性能。In order to solve the problem of poor salt tolerance of polymer emulsion thickening agent for fracturing and the poor stability of suspension thickener,based on the salt resistant associating polymer KFPY,the stabilizer,the particle size and proportion of the powder polymer thickener were optimized by determining the stability time and the bulk viscosity of suspension slurry thickener,the suspension emulsion thickening agent GAF-TE formula was formed as follows:48.5%white oil,1.5%emulsifying agent G10,5%organic modified bentonite and 45%salt resistant associating thickener KFPY.The performances of the GAF-TE including solubility,viscosity increasing,drag reducing and proppant transporting were evaluated in the formation water of Ma 18 well.The results showed that the dissolution time of 0.1%GAF-TE was 18 s,the viscosity was 2.19 mPa·s,and the drug reduction rate was 76.8%.The dynamic carrying capacity of the GAF-TE slickwater was better than that of the ordinary polyacrylamide emulsion.The surface tension of the GAF-TE slickwater was 26.8 mN/m,and the interfacial tension between the GAF-TE slickwater and the kerosene was 0.96 m N/m.The lower damage rate of the GAF-TE slickwater to core permeability was6.97%.The GAF-TE had been applied in Xinjiang oilfield and showed good solubility,drug reduction and sand carrying performance.

关 键 词：悬浮增稠剂 长期稳定性 免混配 滑溜水 动态携砂能力 高效减阻 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]