Proceeding from a cardinal reason affecting wettability reversal of rocks - the absorption of asphaltenes of oil in the pore surface of rocks , the effects of injection water salinity and cation type on this absorption are separately researched ; thus the vital factors affecting wettability reversal of rocks are derived 摘要从影响岩石润湿性转变的一个重要原因原油中沥青质在岩石孔隙表面的吸附出发，分别研究了注入水中含盐量的高低，以及注入水中阳离子的类型对原油中沥青质在岩石孔隙表面的吸附的影响，从而得出了影响岩石润湿性转变的重要因素。
The relationships among the rock permeability , water saturation and resistivity of weicheng oilfield in dongpu depression are studied by rock resistivity parameter testing and rock resistivity testing by water flooding . a comprehensive evaluation for water flooded reservoirs of 16 adjusting wells is carried out by using the testing results , by which the accuracy of interpretation is enhanced greatly 油田进入注水开发中后期,由于油藏各向渗透性的差异,油水粘度差异及开发过程中水动力场的不平衡,注入水在纵向上出现单层突进和平面上的舌进现象.因此,生产初期的主力油层逐渐成为高压水淹层.利用电法测井和物性参数对水淹层进行定性、定量的综合解释方法,确定了马厂油田水淹层的岩性、物性、电性划分标准.该标准在马厂油田得到了广泛应用
Water shutoff agent dsz - a is composed of inorganic particle . its specialities are low cost , easily flow , high strength and long valid period . the agent suits non - selective water shutoff in sand formation . dsz - a not only can plug high water - bearing formation , but also can plug case leakage . dsz - a has been applied on site and gotten good effect . it is a agent which has wide prospect 陇东长8油藏为特低渗砂岩岩性油藏,储层岩石中粘土矿物含量较高,主要为绿泥石,孔隙类型主要有粒间孔、溶孔、晶间孔和微孔.储层潜在损害因素分析主要为无机结垢和粘土矿物的敏感性伤害.实验结果表明,储层注入水与地层水配伍性不好,中等偏弱水敏,中等偏弱盐敏,这些为储层损害的主要因素
