The paper presents the description and results for computational-and-parametric study for the simulation of heat and mass transfer for an water-oil mixture produced from a set of horizontal wells (at the example of high viscosity oil field). The purpose is the theoretical and numerical study of heat and mass transfer for water-oil mixtures with a focus on a set of scientific and production problems in the field of analyzing the development of hydrocarbon reserves in high-viscosity oil fields. The research objects are rocks and natural formations saturated with a multiphase fluid. For computational domain grid construction, the authors proposed and tested a new approach for constructing a dynamic grid in a natural semi-fixed coordinate system. According to this approach, the streamlines and isopotential lines are obtained from an analytical solution based on the complex variable theory. The paper offers a physical and mathematical model of unsteady heat and mass transfer for water-oil mixtures occurring in a system of parallel horizontal wells. The physical and mathematical model and the calculation method are implemented in a computer code complex. The computational and parametric study was carried out and the most general patterns of the oil recovery factor were identified depending on the reservoir geometry and the interwell distance, well operation modes, the hot agent temperature, and the reservoir properties. The study demonstrated a relation of the ultimate oil recovery with the innovative dimensionless parameter. Namely, a growth of this parameter combining the geometry parameters, porosity, permeability, and initial oil saturation of formation corresponds to a logarithmic growth in the oil recovery factor.

本文介绍了用于模拟从一组水平井（以高粘度油田为例）生产的水油混合物的传热和传质的计算和参数研究的描述和结果。目的是对水油混合物的传热传质进行理论和数值研究，重点是分析高粘度油田油气储量开发领域的一系列科学和生产问题。研究对象是被多相流体饱和的岩石和天然地层。对于计算域网格构建，作者提出并测试了一种在自然半固定坐标系中构建动态网格的新方法。按照这种方法，流线和等势线是从基于复变量理论的解析解中获得的。本文提供了平行水平井系统中发生的水油混合物的非定常传热和传质的物理和数学模型。物理和数学模型以及计算方法在计算机代码复合体中实现。进行了计算和参数研究，并根据油藏几何形状和井间距离、井操作模式、热剂温度和油藏性质确定了最一般的采油系数模式。该研究证明了最终石油采收率与创新的无量纲参数之间的关系。即，结合几何参数、孔隙度、渗透率、