Experimental Research on the Millimeter-Scale Distribution of Oil in Heterogeneous Reservoirs  

作　　者：Zhao Yu 

机构地区：[1]Exploration&Development Research Institute,Daqing Oilfield Company,Daqing,163712,China [2]Heilongjiang Provincial Key Laboratory of Reservoir Physics&Fluid Mechanics in Porous Media,Daqing,163712,China

出　　处：《Fluid Dynamics & Materials Processing》2023年第6期1521-1534,共14页流体力学与材料加工（英文）

基　　金：supported by the National Science and Technology Major Projects of China for Oil and Gas(Projects Nos.2016ZX05010 and 2016ZX05058).

摘　　要：Oil saturation is a critical parameter when designing oil field development plans.This study focuses on the change of oil saturation during water flooding.Particularly,a meter-level artificial model is used to conduct relevant experiments on the basis of similarity principles and taking into account the layer geological characteristics of the reservoir.The displacement experiment’s total recovery rate is 41.35%.The changes in the remaining oil saturation at a millimeter-scale are examined using medical spiral computer tomography principles.In all experimental stages,regions exists where the oil saturation decline is more than 10.0%.The shrinkage percentage is 20.70%in the horizontal well production stage.The oil saturation reduction in other parts is less than 10.0%,and there are regions where the oil saturation increases in the conventional water flooding stage.

关 键 词：Heterogeneous reservoir MILLIMETER-SCALE oil saturation MSCT scan method oil displacement experiment 

分 类 号：TE626[石油与天然气工程—油气加工工程]