Porosity Characteristics of Tectonic Coal and Its Controlling Factors

作     者：WANG Youzhi WANG Shihui 

作者机构：Exploration and Development Research Institute of Daqing Oilfield Company Ltd. 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2015年第89卷第A01期

页      面：460-462页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：COAL GAS reservoirs COALBED methane GAS fields NITROGEN 

摘      要：1 Introduction The coal, as a special reservoir, has a dual accumulating system of matrix pore and fracture. The pore is the main reservoir space of coalbed methane （CBM） in coal. Generally, pore structure is very complicated and irregularly so that it is hard to be described in the traditional geometry. The fractal theory plays an important role in describing the porous media of the seepage system in recent years. The studies by Pfeifer, Katz and Kroch show the pore distribution in such reservoirs as coal, sandstone, shale and carbonatite is according with the fractal theory.