V. Mukhametshin, V. A. Shaidullin, S. Sultanov, L. Kuleshova, R. F. Yakupov
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引用次数: 0
摘要
应用干扰液对饱和水多孔介质中岩样滤过电容特性影响的物理模拟结果表明,开发对象岩样滤过部分岩样的干扰液后,采收率小于90%。根据分析计算的方法J.E.奥多和M.B.汤姆森的分析使用的混合过程的过程中沉默水域的兼容性和程度的盐沉积透露,当沉默的水库水和水混合流体在储层条件下在T = 30°C和P = 7 MР,方解石的非有机盐的沉淀碳酸钙沉积物质量在预计的范围0.39 - -0.77 g / l及硫酸钙硬石膏- 0.01 - -0.03 g / l。基于氯化钾泵送消声液过程的流体动力学建模和过滤特性变化程度的测定实验研究表明,可接受回收率系数有所提高。关键词:消音液;过滤实验;建模;渗透系数;方解石盐沉积;水库水相容性。
Assessment of the effect of silencing fluids on filtration and capacitance properties of productive deposits based on laboratory studies of core samples
Based on the results of physical modeling of the effect of the applied jamming fluids on the filtration-capacitance properties of rock samples in a water-saturated porous medium, it is shown that the recovery coefficient of the core sample of the development object after filtering the jamming fluid of some core samples was less than 90%. Based on analytical calculations by the method of J.E. Oddo and M.B. Thomson's analysis of the mixing processes used in the process of silencing waters on the compatibility and degree of salt deposition revealed that when mixing reservoir water and water of the silencing fluid under reservoir conditions at T = 30 °C and P = 7 MРa, the precipitation of non-organic salts of calcite CaCO3 with a sediment mass in the range of 0.39-0.77 g is predicted/l and CaSO4 anhydrite – 0.01-0.03 g/l. Experimental studies on the hydrodynamic modeling of the process of pumping silencing fluids based on potassium chloride and determining the degree of change in filtration characteristics have shown an increase in the coefficient of recovery of acceptance. Keywords: silencing fluid; filtration experiment; modeling; permeability coefficient; calcite salt deposition; reservoir water compatibility.