碱与储层矿物作用及其对驱油剂渗流特性的影响  

INTERACTIONS BETWEEN THE ALKALI AND RESERVOIR MINERALS AND THEIR INFLUENCES ON THE SEEPAGE CHARACTERISTICS OF THE OIL DISPLACING AGENT

作　　者：王磊[1] 

机构地区：[1]大庆油田有限责任公司第六采油厂,黑龙江大庆163114

出　　处：《大庆石油地质与开发》2015年第4期129-133,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家科技重大专项"高效深部液流转向与调驱剂机理研究"(2008ZX05010-004)

摘　　要：为了进一步揭示碱与储层岩石作用及其对三元复合体系渗流特性影响规律,以油藏工程学、岩石矿物学和物理化学为理论指导,以物理模拟、化学分析和仪器检测为技术手段,以大庆喇嘛甸油田储层岩石和流体为研究对象,开展了室内实验。结果表明:碱和"碱/表面活性剂"二元复合体系在岩心中渗流阻力增加主要源于碱对岩心溶蚀作用,三元复合体系渗流阻力增加主要源于聚合物在岩心孔隙中的滞留;与碱和"碱/表面活性剂"二元复合体系相比较,三元复合体系对岩石的溶蚀作用较小,表明聚合物和表面活性剂可以减缓三元复合体系中碱的溶蚀作用。In order to reveal the interactions between the alkali and reservoir minerals and their influences on ASP seepage characteristics, theoretically guided by oil engineering, petro-mineralogy and physicochemistry, by means of the technical methods of the physical simulation, chemical analyses and instrument tests, the indoor experiments are performed in the light of the reservoir rocks and fluids in Daqing Lamadian Oilfield. The results show that the increases of the filtration resistances in the cores for the alkali and alkali/surfactant systems are mainly due to the resorption to the cores, correspondingly the rise in ASP system is principally from the polymer retention in the core pores ; comparing with the previous two systems, the resorption of the later on the rocks is pretty lower, thus indicates that the polymer and surfactant can reduce the corrosion of the alkali.

关 键 词：碱 表面活性剂 聚合物 岩石矿物 溶蚀作用 渗流特性 机理分析 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]