第39参第5期 2017年9月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：1000-7393(2017)05061706
DOI:10.13639/j-odpt.2017.05.016
Vol.39 No.5 Sep.2017
新型Gemini
i表面活性剂复合清洁压裂液体系
杨浩珑李龙”向祖平！袁迎中
1.重庆科技学院石油与天熙气工程学院；2.中石油西南油气分公司
引用格式：杨浩珑，李龙，向祖平，衰逆中.新型Gemini表面活性剂复合清洁压裂液体系[J］.石油钻采工艺，2017,39(5)： 617-622.
摘要：
为构建新型低伤害复合清洁压聚液体系，在合成阳离子双子表面活性剂的基础上，通过复配非高子表面活性剂以及
有机盐助剂，研制出一种新型Gemini表面活性剂复合清洁压裂液体系。宝内对压裂液体系进行了性能评价，结聚表明120C、 170s"条件下剪切90min后体系黏度仍可维持在90mPa*s左右，具有良好的耐温抗剪切性能；体系在较低的黏度下仍具有较高的弹性，可以满足携砂要求；体系在宝温下放置90d后黏度儿乎没有变化，具有良好的稳定性；使用煤油和地层水破胶20 min后的体系黏度均小于5.0mPa*s，说明体系破胶迅速御底；破胶液的界面张力分别为0.416mN/m和0.605mN/m，有利于压累破胶液的返排；使用煤油和地层水破胶后的破胶液对天然券心的伤害率分别为8.71%和12.02%，具有低伤害的特点。现场应用结果分析表明，使用新型Gcmini表面活性剂复合清洁压裂液体系的CZ-22并压裂后的日产油量为未压裂邻并CZ-21井的4信多，压裂增产效果显著
关键词：Gemini表面活性剂；复合清洁压裂液；耐温抗剪切；低伤害；增产效果
中图分类号：TE357
文献标识码：A
AnewcompoundedcleanfracturingsystembasedonGeminisurfactant
YANG Haolong', LI Long', XIANG Zuping', YUAN Yingzhong
1. School of Peroleum Engineering, Chongging University of Science d& Technology, Chongging 401331, China;
2. PetroChina Sourt/rwesr Oil & Gas Field Company, Chengda 610051, Sicharan, China
Citation: YANG Haolong, LI Long, XIANG Zuping, YUAN Yingzhong. A new compounded clean fracturing system based on Gemini surfactant [ J ] . Oil Drilling & Production Technology, 2017, 39(5): 617-622.
Abstraet: This paper is aimed at building up a new compounded clean fracturing system of low damage. After cationic Gemini o o q padoaaa se eaeins a o peseq aas aei ea[ papndo paisas se eens ionic surfactant with organic salt additive. Then, its performance was evaluated in laboratory. It is shown that after this fracturing system is sheared at 170 s*' under 120 °C for 90 min, it is better in temperature and shear resistance and its viscosity is still kept at about 90 mPa-s. Its elasticity is still higher in the case of lower viscosity, so it can satisfy the demand of proppant carrying. After this fracturing O ea s s s o ee e s s s a as s mPa-s after gel breaking for 20 min by kerosene and formation water. And it is indicated that the gel breaking of this fracturing system is fast and thorough. The interfacial tension of gel breakers is 0.416 mN/m and 0.605 mN/m, respectively, which are favorable for the backflow of fracturing gel breaker. After gel breaking by kerosene and formation water, their damage ratios to natural cores are 8.71% and 12.02%, respectively, presenting the characteristic of low damage. This new type of compounded clean fracturing system based on Gemini surfactant is applied on site in Well CZ-22. It is shown that after the fracturing, the daily oil production of Well CZ-22 is four
基金项目：中国石油科技创新基金项目“基于聚建交形机理的页响气赢依积压乳水平并流体流动规律研究"（编号：2015D-5006-0207)。第一作者：杨潜珑（1980-),2010年毕业于西南石油大学沟气田开发工程专业，获硕士学位，现以事油气田开发领城的理论和技术研究，实
验师。通试地址：(401331)重庆市沙坪坝区大学城东路20号（重庆科技学院石油与天然气工程学院)。E-mail：1309849627@ qq.com
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