摘要
通过对F油藏孔隙体积压缩系数实验数据的分析,提出采用二元二次多项式形式表述孔隙体积压缩系数与孔隙度、净有效压力的关系,给出了常压基质型灰岩储层和异常高压基质型灰岩储层孔隙体积压缩系数的拟合方程,并引入概率法确定岩石压缩系数;基于上述研究分析了孔隙体积压缩系数变化规律。本文研究对同类油藏的开发研究具有一定的指导意义。
By analyzing the experimental data on pore volume compressibility in F oil reservoir, it was proposed that quadratic multinomials with two variables can be used to describe the relationships of pore volume compressibility with porosity and net effective pressure, a match equation of pore volume compressibility was given for normal pressure and abnormally high pressure matrix limestone reservoir respectively, and the rock compres-sibility was determined by introducing a probability method. The variations in pore volume compressibility were analyzed on a basis of these results. This study may be meaningful for researching development of similar oil reservoirs.
出处
《中国海上油气》
CAS
北大核心
2011年第4期247-251,共5页
China Offshore Oil and Gas
关键词
基质型灰岩储层
异常高压
岩石压缩系数
孔隙体积压缩系数
孔隙度
净有效压力
概率法
matrix limestone reservoir
abnormally high pressure
rock compressibility
pore volume compressibility
porosity
net effective pressure
probability method