非常规页岩气资源开发的基础渗流问题研究

项目名称： 非常规页岩气资源开发的基础渗流问题研究

项目编号： No.U1262109

项目类型： 联合基金项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 许友生

作者单位： 浙江科技学院

项目金额： 39万元

中文摘要： 利用国家开放同步辐射实验室同步辐射光得到页岩气赋存多孔介质样品微结构三维数据，采用图像识别、边缘提取等图形图像处理技术进行三维重构，利用重构的三维结构研究赋存介质的微结构特征。利用不同温度及压力下的赋存介质微结构数据，获得孔隙骨架形变特性。采用基于分子动力学和晶格玻尔兹曼方法耦合的数值计算方法，探索非常规页岩气赋存介质中的复杂渗流细观机理。研究甲烷等有机分子（页岩气的主要成分之一）与水受限在纳米孔道中，在高压外部条件下形成可能与宏观常压下完全不一样的新的结构、性质与输运规律。利用量化软件（第一性原理与分子模拟相结合）深入研究在高压情况下非常规页岩气在纳米孔道中的形成过程所涉及到的物理、化学过程，特别关注受限的尺度、压强、温度等因素对形成页岩气涉及的化学与物理过程的影响。继而进一步研究前面所述的迫切需要展开研究的几个基础渗流问题。

中文关键词： 页岩气；渗流；同步辐射；三维重构；数值模拟

英文摘要： In this project, we will Obtain 3D microstructure data of shale gas porous matrix by the National Synchrotron Radiation Laboratory. For research on the micro structural characteristics of shale gas porous matrix, the 3D reconstruction will be obtained by using the image recognition method combined with edge detection image processing technique, the porous skeleton deformation characteristics will be obtained by using micro structure data from different temperature and pressure of the storage medium. The meso mechanism of shale gas flow in porous storage media will be explored based on the molecular dynamics couple in lattice Boltzmann method. In addition, we will study the different structure, properties and transport law of methane ( one of the main Component of shale gas ) and water that confined in nanometer pore under high pressure conditions. The chemical and physical process of unconventional shale gas in the nanometer pore will be Investigated by using the quantitative software (the first principle couple in molecular simulation) under high-pressure. After then, we will give special attention to the chemical and physical effect of limited scale, pressure, temperature and other factors on the formation of shale gas. Further along, we will be focus attention on the basic problems for the shale gas flow in p

英文关键词： Shale Gas；Flow in Porous Media；Synchrotron radiation；3D reconstruction；Numerical simulation