苏北盆地T油田碳酸盐岩储层压力敏感性研究  

PRESSURE SENSITIVITY STUDY OF HIGH-PRESSURE AND LOW-PERMEABILITY CARBONATE RESERVOIR IN T OILFIELD,THE NORTH JIANGJU BASIN

作　　者：谈士海[1] 韦建伟[2] 

机构地区：[1]中国科学院地质与地球物理研究所 [2]中国石化华东分公司采油厂,江苏泰州225300

出　　处：《石油实验地质》2006年第1期91-94,共4页Petroleum Geology & Experiment

摘　　要：对苏北盆地T油田深层石炭系低渗碳酸盐岩24个水平和垂直岩样进行了储层压力敏感性实验研究,分析了有效压力与孔隙度和渗透率关系,结果表明:1)石炭系储层孔隙压失量与孔隙度之间有比较好的相关性,总体上为:孔隙度高,压失量低;孔隙度低,压失量高。2)渗透率的压失程度与岩样孔渗条件有密切的关系,孔渗性能好,伤害系数小;孔渗透性能差,伤害系数大。The results of pressure sensitivity experiments for 24 horizontal and vertical core samples of lowpermeability Carboniferous carbonate reservoir in the depth of T oilfield show that, the relationship of effective pressure and porosity, as following： 1）the pore press-lose ratio of Carboniferous carbonate reservoir correlated with their magnitude of porosity. As a whole, the higher porosity, the lower pore presslose ratio, vice versa; 2）the permeabiltiy press-lose ratio of Carboniferous carbonate reservoir associated with their poro-permeability condition. The well poro-permeability condition, the lesser damage factor, and vice versa.

关 键 词：有效压力 孔隙度 渗透率 碳酸盐岩 石炭系 苏北盆地 

分 类 号：TE311[石油与天然气工程—油气田开发工程]