第45卷第3期
油气田化学
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
四川盆地震旦系储层改造液体选择技术研究
王道成张燕赵万伟向超原励龙顺敏
孙川王川刘友权石晓松中国石油西南油气田公司天然气研究院
摘要四川盆地高石梯磨溪构造带震旦系储层具有温度高、埋藏深、储层缝洞发育、非均质性强等特征，针对性的酸液体系及配方选择是获得此类储层增产改造的关键因素之一。结合震巨系储层特征，分析了储层改造技术难点，开展了针对性的酸液性能评价试验研究，结果表明：①胶凝酸、转向酸具有良好的控滤失性能，滤失系数为10-1～10-5级；②胶凝酸、交联酸具有较低的摩阻，平均摩阻系数分别为0.3777和0.3664：③胶凝酸、交联酸具有较低的酸岩反应速率，平均酸岩反应速率为10-5级； ④转向酸可对40倍渗透率岩心实现转向，变黏黏度可达70mPa·s：①可降解纤维在150℃下2.5 可完全降解。试验表明，注入压力提高了3.2MPa。探索形成了4类储层特征下针对性的酸液体系优选原则，优选的酸液体系在震互系储层得到了大量的应用。
关键词四川盆地高石梯磨溪震亘系储层改造滤失摩阻酸岩反应转向
中图分类号：TE357.2
文献标志码：A
D0I: 10.3969/j.issn.1007-3426.2016.03.011
Researchof liquid systemselectiontechnologyof Siniansystem
reservoirstimulationinSichuanBasin
WangDaocheng,ZhangYan,ZhaoWanwei,XiangChaoYuanLi Long Shunmin,Sun Chuan,Wang Chuan,LiuYouquan,Shi Xiaosong
(Research Institute of Natural Gas Technology , PetroChina Southwest
Oil & Gasfield Company , Chengdu 610213, China)
Abstract: The reservoir of Gaoshiti-Moxi structure of Sinian system in Sichuan Basin has the characteristics of high temperature , deep buried, fractured-vuggy development and strong reservoir heterogeneity . The acid fluid system and formula selection is one of the key factors to stimulate the reservoir and increase production . Combined with the characters of Sinian system , the technical difficulties of reservoir stimulation were analyzed , the acid liquid system performance experiments were carried out , and results showed that :The filtration performance of gelled acid and VES acid is good, and the filtration coefficient is about 1o-1 1o-5 level ;@the friction resistance of gelled acid and cross-linked acid is low ,the average friction coefficient is O .377 7 and 0 .366 4 for each acid ;③the acid-rock reaction rate of gelled acid and cross -linked acid is low , and the average reaction rate is about 10 level ;@the VES acid can treat the 40 times permeability cores diverting successfully , and the
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基金项目：中国石油天然气股份有限公司油气勘探重点工程技术攻关项目“超深高温高压含硫化氢储层及复杂岩性低渗储层试油(含措施改造)配套技术研究”
作者简介：王道成（1981一），高级工程师，博士，现就职于中国石油西南油气田公司天然气研究院，主要从事油气田开发化学液体技术研究，E-mail;wang_del@petrochina.com.cn