摘要
通过室内实验,研究分析了特低渗透储层岩样启动压力梯度与渗透率的关系,利用建立的恒压法油水测定公式测定了油水相对渗透率曲线,描述了特低渗透储层样品的不同压力梯度对渗流特征的影响。这将为特低渗透储层开发提供理论实验依据,对合理开发特低渗透油田有着十分重要的意义。
This paper analyzes the relation between starting pressure gradient and permeability of ultra-low permeable reservoirs through lab experiment.It obtains a curve of oil and water relative permeability using measurement formula with constant pressure method,and describes the effect of different pressure gradient of the samples of ultra-low permeable reservoirs on flow characteristics.This provides theoretical and experimental evidence for the development of ultra-low permeable reservoirs.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2005年第6期42-44,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
低渗透
启动压力
非稳态相渗
压力梯度
low permeable
starting pressure
non-stable phase flow
pressure gradient
