摘要
选取马岭油田长8油层组8块样品进行恒速压汞实验,研究低渗透储层孔隙微观结构,并对所得参数同渗透率的关系进行研究。在渗透率变化范围较小的情况下,分形维数及孔喉半径比与渗透率均呈现较好的负相关性;而孔隙半径、迂曲度等在普通储层中具有良好代表性的参数,同渗透率并没有很好的相关性,说明研究低渗透储层单因素与物性的变化可能不能呈现较好的相关性。
In Maling oilfield,8 samples of Chang 8 oil layers were selected for constant speed mercury injection experiment to make clear the microscopic structure of low permeability reservoir.The relationship between the permeability parameters was studied and the study results indicated in the case of small permeability change range,there was a good negative correlation between fractal dimension,pore throat radius ratio and permeability,while the representative parameters such as pore radius and tortuosity had no good correlation with permeability,which showed there may be no good correlation between the single parameter of low permeability reservoir and the change of physical properties.
出处
《石油地质与工程》
CAS
2017年第2期70-73,共4页
Petroleum Geology and Engineering
关键词
马岭油田
延长组
低渗透储层
孔隙结构
Maling oilfield
Yanchang Formation
low permeability reservoir
pore structure
