中低温低渗透油藏用深部调剖剂实验研究  

Laboratory Study on In-Depth Profile Controlling Agent for Low-Middle Temperature and Low Permeability Oil Reservoirs

作　　者：吕广普[1] 郭焱[1] 蒲春生[2] 贾海波[1] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049 [2]中国石油大学(华东)石油工程学院,山东青岛266555

出　　处：《油田化学》2010年第3期299-302,共4页Oilfield Chemistry

基　　金：国家"西部开发"科技行动重大科技攻关计划"陕甘宁盆地特低渗油气田高效开发与水资源可持续发展关键技术研究项目"(项目编号2005BA901A13);国家自然科学基金项目"油井爆燃压裂中毒气体生成与传播规律研究"(项目编号50774091)

摘　　要：采用熔融聚合的方法制得聚酰胺后配成水溶液,加入环氧氯丙烷进行烷基化,得到深部调剖剂PAER。通过对调剖剂的固含量、pH值、温度等因素的研究,确定其使用条件为固含量12%、pH值为8、温度范围为30~60℃。调剖剂成胶过程中的黏度变化表明调剖剂的注入性良好。在固含量为12%、pH值为8、温度60℃下,岩心流动实验结果表明其对高渗透率岩心的封堵率在91%以上,突破压力梯度在9.5 MPa/m以上,剖面改善率可达到91%。Polyamide-epichlorohydrin resin（PAER） was perpared by the reaction of epichlorohydrin and polyamide obtained by melting condensation polymerization.Based on the investigation of influences of the major factors,such as solid content,pH,temperature,on the gelling time of PAER,the appropriate applied condition was as follows：solid content was 12%,pH was about 8,temperature was from 30℃ to 60℃.The trend of the change of apparent viscosity during the gelling process,indicated that the injectivity was good.Under the conditions of polymer solid content 12%,pH about 8,temperature about 60℃,core flow experiment indicated that the blocking rate of the core with high permeability was more than 91%,the breakthrough pressure of the core was more than 9.5 MPa/m,and the modification rate of water profile could be up to 91%.

关 键 词：堵水调剖剂 低渗透油藏 中低温油藏 深部调剖 交联 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程] TE357.46