基于分形理论预测砂岩储层渗透率  

Study of permeability of sandstone reservoirs based on fractal theory

作　　者：蔺景龙[1] 刘爽[1] 赵海波[1] 

机构地区：[1]大庆石油学院地球科学学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2004年第5期1-3,共3页Journal of Daqing Petroleum Institute

摘　　要：根据分形几何学的基本理论探讨了岩石孔隙的分形结构及孔隙分形维数的确定方法.改进Kozeny-Carman方程,调整颗粒半径和有效孔隙半径至适于动力传导过程的分辨率尺度,从而建立了渗透率的分形模型.应用该方法处理实际资料,结果表明,利用分形模型预测砂岩储层的渗透率精度高,验证了模型的可行性.Based on fractal theory fractal pore space geometry of rocks was discussed. At the same time the methods were given to determine the fractal dimension of pore space. Then the Kozeny-Carmon equation was developed. The newly developed fractal model adjusts the measure of the effective pore radius and of the grain radius to the resolution length appropriate for the hydraulic process. The fractal model was applied in Daqing oil field. The permeability calculated with the model coincides very well with that measured on core samples. The estimated permeability of sandstone reservoirs is accurate, so the fractal model developed for permeability is valid and feasible.

关 键 词：分形理论 分形维数 Kozeny—Carman方程 渗透率 砂岩储层 

分 类 号：TE122.2[石油与天然气工程—油气勘探]