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Research on the application of molecular simulation technology in enhanced oil-gas recovery engineering

机译:分子仿真技术在增强油气回收工程中的应用研究

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In recent years, molecular simulations have received extensive attention in the study of reservoir fluid and rock properties, interactions, and related phenomena at the atomistic scale. For example, in molecular dynamics simulation, interesting properties are taken out of the time evolution analysis of atomic positions and velocities by numerical solution of Newtonian equations for all atomic motion in the system. These technologies assists conducting “computer experiments” that might instead of be impossible, very costly, or even extremely perilous to carry out. Whether it is from the primary oil recovery to the tertiary oil recovery or from laboratory experiment to field test, it is difficult to clarify the oil displacement flow mechanism of underground reservoirs. Computer molecular simulation reveals the seepage mechanism of a certain oil displacement at the microscopic scale, and enriches the specific oil displacement flow theory system. And the molecular design and effect prediction of a certain oil-displacing agent were studied, and its role in the reservoir was simulated, and the most suitable oil-displacing agent and the best molecular structure of the most suitable oil-displacing agent were obtained. To give a theoretical basic for the development of oilfield flooding technology and enhanced oil/gas recovery. This paper presents an overview of molecular simulation techniques and its applications to explore enhanced oil/gas recovery engineering research, which will provide useful instructions for characterizing the reservoir fluid and rock and their behaviors in various oil-gas reserves, and it greatly contribute to perform optimal operation and better design of production plants.
机译:近年来,分子模拟在储层流体和岩石性质,相互作用和相关现象的研究中得到了广泛的关注。例如,在分子动力学模拟中,通过系统中所有原子运动的牛顿方程的数值解除出原子位置和速度的时间演化分析。这些技术有助于进行“计算机实验”,这可能代替不可能,非常昂贵,甚至非常危险地执行。无论是从主要的石油恢复到三级储存还是从实验室试验到现场试验,难以澄清地下水库的油位移流量机制。计算机分子模拟显示了在微观尺度处的某种油位移的渗流机制,并丰富了特定的油位移流动理论体系。研究了某种油置换剂的分子设计和效果预测,并模拟了其在储层中的作用,获得最合适的油置换剂和最合适的油置换剂的最佳分子结构。为油田洪水技术发展提供理论基础,增强石油/天然气回收。本文概述了分子仿真技术及其探索增强的石油/气体回收工程研究的应用,这将提供用于在各种油气储量中表征储层液和岩石及其行为的有用指示,并且大大有助于执行生产厂的最佳运行和更好的设计。

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