西南石油大学学报（自然科学版）2016，Vol.38Issue(4)：110-116,7.DOI:10.11885/j.issn.1674-5086.2014.05.26.05
复杂裂缝网络系统油水相渗曲线特征实验研究
Experimental Researches on Relative Permeability Curve of Complex Fracture System
摘要
Abstract
Oil-water relative permeability curve of fracture system is very important in the waterflooding process of naturally fractured reservoirs. We designed and made a series of large size physical model of fracture system based on the geological charac- teristics of a certain fractured carbonate reservoir. Oil-water relative permeability curves were measured by using unsteady-state method.The influence of fracture density and average fracture aperture on oil-water relative permeability curves was studied. The results show that the shape of relative permeability curve is close to X curve type,and common percolation area of two phases turns wide. When the irreducible water saturation increases,the common percolation area of two phases reduces with the fracture density growing. With greater fracture density,the structure becomes more complex,the irreducible water saturation in the phase permeability curve greater,and the range of the two-phase percolation area smaller,and the position of the seepage point gradually moves to the right.关键词
裂缝性碳酸盐岩油藏/裂缝网络结构/裂缝宽度/裂缝密度/相渗曲线Key words
fractured carbonate reservoi/structure of the fracture system/fracture aperture/fracture density/relative perme-ability curve分类
能源科技引用本文复制引用
潘毅,王攀荣,宋道万,董亚娟,孙雷..复杂裂缝网络系统油水相渗曲线特征实验研究[J].西南石油大学学报（自然科学版）,2016,38(4):110-116,7.基金项目
国家科技重大专项（2011ZX05014004）。 （）
