摘要
稠油油藏由于其特殊化学结构和非牛顿特征使得稠油在储层岩石中的渗流受到较大影响,其微观渗流机理对稠油油藏剩余油分布的研究和注水生产压差优化设计是非常重要的。本文以稠油的非牛顿特征以及在多孔介质中的非线性渗流特征为理论依据,通过室内实验研究,对稠油异常粘度特征、流变特征及含水率对原油粘度影响规律进行研究,并在此基础上结合海上稠油砂岩油藏的渗流特点,研究井距、注采压差、非均质性等因素对剩余油分布的影响,为探索海上稠油油田提高采收率方法提供了实验依据。
Due to its special chemical structure of heavy oil reservoir and non-newtonian characteristics of heavy oil in the seepage of the reservoir rock affected by large,its microscopic percolation mechanism of heavy oil reser-voir to study the distribution of the residual oil and water injection production pressure differential optimization de-sign is very important.Based on the non-newtonian characteristics of heavy oil and the characteristics of nonlinearseepage flow in porous media for theory basis,through the indoor experiment study,the characteristics of anoma-lous viscosity of heavy oil,the rheological characteristics and to study the effects of water cut of crude oil viscosity,and on the basis of the combination of offshore heavy oil sandstone reservoir percolation characteristics,study wellspacing,injection-production pressure difference and heterogeneity on residual oil distribution,the influence offor exploring offshore heavy oil field to improve oil recovery method provides the experimental basis.
出处
《新疆石油天然气》
CAS
2016年第1期54-59,共6页
Xinjiang Oil & Gas
基金
国家科技重大专项(2011ZX05024-002-004)
关键词
海上稠油砂岩油藏
非线性渗流
流变特征
微观机理
Offshore heavy oil reservoir
Non-linear seepage
Rheological characteristics
Microscopic mechanism
