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油田的可采储量,是制定油田开发方案、研究油田调整方案和分析油田开发动态的重要依据。所谓油田的可采储量,是在现代工业技术发展的水平上,人们能从某一具体油田中所采出的原油总量。为了确定一个油田的可采储量,必须首先测算油田的采收率。要想确切地确定油田的采收率,还必须对影响采收率的如下诸因素有所了解。(1)油田的构造形态,有无气顶和边底水,以及天然驱动能量的大小;(2)储油层的孔隙结构特征、连通性和非均质程度,以及地层的渗透率、孔隙度和束缚水饱和度的大小;(3)地层原油物性的好坏,主要是地层原油的粘度和天然气在原油中的溶解度大小;(4)油田开发方式的选择及驱动类型;
Recoverable reserves of oilfields are an important basis for formulating oilfield development plans, studying oilfield adjustment plans and analyzing developments in oilfields. The so-called recoverable reserves of oil fields are the total amount of crude oil that people can extract from a specific oil field at the level of modern industrial technology development. In order to determine the recoverable reserves of an oil field, the oil recovery must first be measured. To determine exactly how well an oil field will recover, you must also understand the following factors that affect oil recovery. (1) the tectonic configuration of the oil field, with or without gas cap and edge water, and the magnitude of the natural driving energy; (2) the pore structure characteristics, connectivity and heterogeneity of the reservoir, as well as the permeability of the formation, the porosity And the size of the irreducible water saturation; (3) the physical properties of the crude oil in the formation are mainly the viscosity of the crude oil in the formation and the solubility of natural gas in the crude oil; (4) the choice and driving type of oilfield development;