首页> 外国专利> METHOD FOR DETERMINING THE COEFFICIENT OF OIL DISPLACEMENT OF THE BASHKIR CARBONATE DEPOSITS OF THE SOLIKAMSK DEPRESSION

METHOD FOR DETERMINING THE COEFFICIENT OF OIL DISPLACEMENT OF THE BASHKIR CARBONATE DEPOSITS OF THE SOLIKAMSK DEPRESSION

机译:测定Solikamsk凹陷巴什基尔碳酸盐沉积物的驱油系数的方法

摘要

FIELD: oil and gas industry.;SUBSTANCE: invention relates to the field of petroleum geology and can be used in calculating recoverable oil reserves from rocks represented by the Bashkir carbonate sediments of the Solikamsk depression. Essence: from the core of the real rock of the Bashkir carbonate deposits of the Solikamsk depression, standard cylindrical samples are made. Samples are extracted from the oil, dried until the mass is stabilized, weighed in dry condition. Porosity coefficient, the gas permeability coefficient and the oil viscosity are determined. Under vacuum, 100 % saturation of the sample with formation water or its model is carried out. Saturated sample is weighed in the air. Using capillary measurements, water is displaced from the samples to the value of the residual water saturation. Coefficient of residual water saturation is determined. In this case, after 100 % saturation of the sample with water under vacuum, it is additionally weighed in water, then the bulk density of the rock from which the sample is made is determined. Discriminant function of the sample is calculated by the method of discriminant analysis. According to the discriminant function, the rock grade is determined (I or II) from which the sample is made. Oil displacement coefficient is calculated with respect to the rock grade.;EFFECT: increase in the accuracy of determining the coefficient of displacement of oil by water for the Bashkir carbonate deposits of the Solikamsk depression.;1 cl, 2 dwg
机译:技术领域本发明涉及石油地质领域,可用于计算由索利卡姆斯克凹陷的巴什基尔碳酸盐沉积物代表的岩石中的可采储量。实质:从索利卡姆斯克凹陷巴什基尔碳酸盐矿床的真实岩石中提取标准圆柱样品。从油中提取样品,干燥直至质量稳定,然后在干燥条件下称重。确定孔隙率,气体渗透率和油粘度。在真空下,用地层水或其模型对样品进行100%饱和。在空气中称量饱和样品。使用毛细管测量,将水从样品中置换到残留水饱和度的值。确定残留水饱和度的系数。在这种情况下,在真空下用水将样品100%饱和后,再在水中称重,然后确定制成样品的岩石的堆积密度。样品的判别函数通过判别分析的方法计算。根据判别函数,确定样品的岩石等级(I或II)。计算出相对于岩石品位的驱油系数;效果:确定Solikamsk凹陷巴什基尔碳酸盐矿床水驱油系数的准确性提高; 1 cl,2 dwg

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