温度和测试方法影响相同油水黏度比相渗曲线的实验研究  

The Experimental Study of Impact on Temperature and Test Method for the Relative Permeability Curves Based on the Same Oil-water Viscosity Ratio

作　　者：黄时祯[1,2] 石美[3] 郭平[1] 张娟[3] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500 [2]中石油塔里木油田分公司,新疆库尔勒841000 [3]中石油西南油气田分公司,成都610051

出　　处：《重庆科技学院学报（自然科学版）》2013年第6期87-91,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中石油股份公司重大专项(2010E-21)

摘　　要：取西部某油藏TI层位的岩心,按不同温度下油水黏度比相同的原则配置模拟油和地层水,进行稳态法和非稳态法油水相渗实验。不同温度、测试方法所测相渗曲线对比结果显示:对于该油藏岩心,排除了润湿性、油水黏度比和孔隙结构等因素对相渗曲线的影响,两种测试方法所得相渗曲线差异较大,岩石本身性质及测试原理不同可能是造成曲线差异的根本原因;在油水黏度比一致的情况下,随着温度的升高,两种方法测得的相渗曲线残余油饱和度均降低,束缚水饱和度和驱油效率增大,油相相对渗透率曲线略升,水相相对渗透率曲线变化无一致规律。Using the cores of TI layer in a western reservoir, the oil - water relative permeability experimental re- search is done by steady state and unsteady state methods. The result shows that, excluding the effects of wettabili- ty, viscosity ratio, pore structure on relative permeability curves, it is proved that in the correct experimental proce- dure and condition, the reason of the differences between the two methods is concerned with the test principles and the rock itself. And also it makes the effect of temperature on relative permeability curves more clearly. The results show that for the two test methods under the same oil - water viscosity ratio condition, with the increasing tempera- ture, residual oil saturation drops, oil displacement efficiency, irreducible water saturation both increase, the oil phase permeability increases, the permeability of water phase changes inconsistent with the law.

关 键 词：油水黏度比 相对渗透率曲线 稳态法 非稳态法 

分 类 号：TE311[石油与天然气工程—油气田开发工程]