分子模拟在非常规油气开发中的应用  

Application of molecular simulation in unconventional oil and gas development

作　　者：洪祥宇 徐亨宇 崔风路 余昊 吴一宁 吴恒安[1] 王奉超 HONG Xiang-yu;XU Heng-yu;CUI Feng-lu;YU Hao;WU Yi-ning;WU Heng-an;WANG Feng-chao(Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,China;Shandong Key Laboratory of Oilfield Chemistry,School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国科学技术大学近代力学系,合肥230027 [2]中国石油大学(华东)石油工程学院油田化学山东省重点实验室,青岛266580

出　　处：《计算力学学报》2021年第3期313-320,共8页Chinese Journal of Computational Mechanics

基　　金：国家重点研发计划(2019YFA0708700);国家自然科学基金(11922213)资助项目.

摘　　要：非常规油气资源储量丰富,具有广阔的开发前景。我国低渗/特低渗油藏以陆相沉积为主,储层特征差异性大,孔喉细小,孔隙度低,可动原油气大量储集于亚微米孔隙中,开采难度大,采收率低。岩油界面微观力学作用和限域传质力学机理是其中的关键科学问题。近年来,分子模拟技术在非常规油气开采的研究领域已经成为一种重要的研究手段。本文介绍了分子模拟的基本原理,然后给出了非常规油气藏储层流体和基质的组成及分子模型,并探讨了分子模拟在非常规油气开发中的应用及相关研究进展。Unconventional oil and gas resources are abundant and have broad development prospects.Reservoirs in China with low-permeability/ultra-low-permeability are mainly continental deposit.Reservoir characteristics are quite different,with many narrow pore-throats and low porosity.A large amount of recoverable crude oil and gas is residual in sub-micron pores,which is technically difficult to extract,leading to a rather low recovery efficiency.The key scientific problems in this realm include the microscopic mechanical interactions of rock/oil interface and the underlying mechanism of confined molecular transport.In recent years,molecular simulation has become an important research tool in the field of unconventional oil and gas exploitation.This short review starts with an introduction to the principle of molecular simulations,then shows the molecular models of components of unconventional oil and gas reservoirs,and discusses the applications of molecular simulation in unconventional oil and gas development and the related research progress.

关 键 词：非常规油气 微纳米力学 分子模拟 分子动力学 第一性原理计算 界面相互作用 

分 类 号：O313[理学—一般力学与力学基础]