摘要
通过考虑储层煤岩变形、骨架煤粉剥离、煤粉在孔隙中的运移沉积和喉道处的堵塞对煤岩物性参数(如孔隙度、渗透率、孔隙压缩系数及煤岩密度等)的影响,并考虑气溶于水及流体的源汇相的情况,建立了煤储层含煤粉流体流固耦合渗流的数学模型,为煤层气开发数值模拟提供理论基础。
By considering the effect of the deformation of coal or rock in reservoir, skeleton coal powder stripping, coal powder migration and deposition in pore, and coal powder block at pore throats on the physi-cal property parameters of coal or rock （such as porosity,permeability,pore compressibility and density et al） ,and considering the solution of coalbed methane in water and fluid source sink term, a mathematical model of fluid-solid coupling percolation with coal powder in coal reservoir is established, which provides theoretical foundation for numerical simulation of CBM development.
出处
《天然气地球科学》
EI
CAS
CSCD
北大核心
2013年第4期667-670,共4页
Natural Gas Geoscience
基金
国家科技重大专项项目"煤层气排采工艺与数值模拟技术"(编号:2011ZX05038)
山东省科技发展计划项目"煤层气排采出煤粉机理研究"(编号:2012G0020407)联合资助
关键词
多孔介质
煤粉
流固耦合
渗流
Porous medium
Coal powder
Fluid-solid coupling
Percolation
