油层微型构造影响油井生产机理研究

对微型构造的定义、成因、分类作了简要论述。提出“注入水油水界面”的概念,指出在油层内部油井水淹停产是由于此“界面”上升至油层顶面所引起。对微型构造影响油井生产的机理作了论证,通过数学公式推导,证明在通常条件下,正微井控制油层面积大于负微井,油水重力分异作用对正微井有利。引用莱弗里特方程证明正微井在注水开发中处于向上驱油的有利条件,而负微井则处于向下驱油的不利条件,还有部分低部位油向高部位运移。因此     

确定钻井滤液侵入形成的地层水饱和度：驱替模型和测井曲线响应的比较

本文建立了一种数值模型，用以解释薄层状地层的测井结果，求出研究层段的水饱和曲线。     

对人造模型水驱油模拟实验的CT扫描跟踪技术

岩心的水驱油实验只能得到流体通过岩心前后端的参数指标，而对流体在模型中的运动过程无法直观的显现，通过CT扫描技术，在X射线的CT透视下，可以直接观察到各种流体通过岩心的运移情况，同时能够直观的了解到油水在各种岩心内的分布，进而为研究油水在地层内的各种分布及运动特征提供了有效的可视化手段。     

聚合物后续水驱阶段剩余油挖潜技术

后续水驱阶段是聚合物驱的一个重要阶段，加强剩余油分布的研究，找准潜力所在，以便制定相应调整对策，控制含水上升速度，发挥后续水驱阶段聚合物的增油作用。通过分析该区块的地质及开发特点，发现聚合物驱后剩余油分布在断层遮挡区域、前缘席状砂相、井网不完善区域、中低渗透层段。提出了对高渗透层进行深度调剖、对窜流层进行封堵、及时进行细分注水和合理调整注采比、在剩拿油富集区布新井和过路井补孔等针对性的挖潜措施，现场实施效果良好。     

Measurements of ^222Rn and ^220Rn with a Large Size Collector of Radon Progeny

Radon concentrations in high background radiation areas in the south are higher than those of others in China, especially ^220Rn concentration is significantly high. Therefore, measurements of ^222Rn and ^220Rn concentrations should be carried out there. This paper introduces a large size collector of radon progeny and its applications. The collector is a sheet of polyvinyl chloride fiber with electrostatics of (-500 V)-(-700 V). Its size (60 mm in diameter) is larger than those of others (26 mm in diameter) that work with the same principle. The collector is more effective to adsorb radon progeny than most of others. The equipment of ZnS(Ag) Scintillation Counting System is available for large size collectors to detect radon progeny. Therefore, its sensitivity of measurement is higher than that of others. According to the different half lives of radon progeny, and based on both theory and experiments, a formula for discrimination and calculation of ^222Rn and ^220Rn concentrations is deduced. The ^222Rn and ^220Rn concentrations were surveyed with electrostatic collectors of radon progeny on the campus of commercial school and some other areas in Hainan, southern China. Neither ^222Rn nor ^220Rn concentration was found significantly high. However, several faults underground were delineated. The collector is also used to study radon transportation. Results indicate that radon changes regularly with date when it has transported for a certain distance. Velocities of radon migration in the four media are quite different. Radon migrates more quickly in vertical tube than in the horizontal tube.     

聚合物／蒙脱土纳米复合材料研究进展

纳米复合材料是指相尺度至少有一维小于100nm量级的复合材料。由于其纳米尺度效应、大的比表面积以及强的界面相互作用，纳米复合材料具有远优于相同组分常规复合材料的物理力学性能，因此制备纳米材料以获得高性能复合材料受到材料工作者的极大重视。而层状硅酸盐粘土(主要成分是蒙脱土)以其内部层状结构、廉价、易获得等独特的优势成为制备聚合物／无机纳米复合材料的首选原料之一。     

PS剂驱油提高采收率室内评价研究

表面活性剂驱油是化学驱的方法之一，即在常规注水条件下，通过在注入水中加入添加剂来降低油水界面张力，改变岩石颗粒表面的润湿性，使油膜从岩石面上冲洗下来，并在驱替压差的作用下流入生产井，从而达到增产的目的。PS表面活性剂具有这种作用，能够提高原油的采收率。