碳酸盐岩储层裂缝参数和发育程度的确定方法

The method of confirming fracture parameter and development degree in carbonate reservoir

闫晓芳 陈景阳 龚晶晶

Yan Xiaofang Chen Jinyang Gong Jingjing

中国地质大学研究生院, 湖北武汉 430074

China University of Geosciences, Wuhan 430074, China

在碳酸盐岩储层中裂缝不仅起渗流作用还可以作为存储空间,因此研究裂缝的物性参数也就有着很大的意义。裂缝物性的好坏直接影响着储层的好坏,文章利用静态资料结合一定的经验公式对裂缝的孔隙度、渗透率、倾角、密度、延伸度等的计算方法进行了总结,利用动态资料(如产能大小、井间连通等的资料)对裂缝的发育情况进行了分析,这些方法在今后的科研与生产过程中还有待进一步的完善与提高。通过静态资料和动态资料的结合能够对裂缝的发育的程度有更好的说明。

The research of fracture parameter is significative because the fracture not only acts as the passage of the fluid flow but also the storage space in carbonate reservoir. So the fracture parameter has the positive relationship with the character of reservoir. This paper describes the fracture porosity, permeability obliquity, density, and length using the static data and experience formula and analyses the fracture development degree using the dynamic data such as production, well connectivity, etc. The method combining static and dynamic data can better describe the fracture development degree.