油气储层多孔介质的变形理论及实验研究  

THEORY AND EXPERIMENT STUDIES FOR POROUS MEDIA'S DEFORMATION OF OIL AND GAS RESERVOIRS

作　　者：杨满平[1] 李治平[1] 李允[1] 王正茂[1] 

机构地区：[1]西南石油学院

出　　处：《天然气工业》2003年第6期110-113,共4页Natural Gas Industry

基　　金：国家重大基础研究项目( 973项目 )子课题"气藏变形介质渗流规律研究"(编号 :2 0 0 1-cb - 2 0 9- 10 8)资助

摘　　要：油气储层岩石是一种典型的多孔介质。在油气藏开发过程中 ,由于流体的流出而孔隙压力下降 ,储层所受到的有效压力增大 ,储层发生变形并使储层多孔介质的孔隙结构发生改变、孔隙体积缩小、孔隙度和渗透率降低。在多学科研究相结合的基础上 ,阐述了储层多孔介质变形的类型 ,并从多孔介质的微观物理特性 (如物质组成 ,颗粒类型及它们之间的接触关系、排列方式、胶结方式以及孔隙内流体的类型和特征等 )分析对其产生变形的影响。利用先进的仪器和改进的实验装置 ,分析了储层多孔介质因变形而使其孔隙结构、孔隙体积、孔隙度和渗透率所发生的变化。文章对储层多孔介质变形的理论和实验研究 。Oil and gas reservoir's rocks is a typical porous media.In the developing of reservoirs,the pore pressure decreases,and the effective pressure increases as its fluid flows out,which makes the reservoir deforming,the pore structure changing,the pore volume reducing,the porosity and permeability decreasing.Based on multidisciplinary study,the deformation types of porous media are expatiated,and the influence of microcosmic physical properties of porous media,such as its composition,grain's size,contact,pattern,and cementation,and fluid's types and characteristics on the deformation is analyzed.With advanced instruments and improved experimental facilities, the changes of the pore structure and volume,the porosity and permeability caused by the deformation of the porous media are analyzed,either.The theory and experiment study of porous media deformation is very useful to make the development and production schemes for the oil and gas reservoirs severely affected by the deformation.

关 键 词：油气储层 多孔介质 变形理论 油气藏开发 岩石力学 实验 

分 类 号：TE311[石油与天然气工程—油气田开发工程]