Pool-Forming Stages and Enrichment Models of Medium- to High-Rank Coalbed Methane

被引：7

作者：

Song Yan ^{[1
,2
]}

Zhao Mengjun ^{[1
]}

Hong Feng ^{[1
]}

Liu Shaobo ^{[1
]}

Qin Shengfei ^{[1
]}

Wang Hongyan ^{[3
]}

机构：

[1] CNPC, Res Inst Petr Explorat & Dev, Petr Geol Res & Lab Ctr, Beijing 100083, Peoples R China

[2] Yangtze Univ, Jinzhou 434023, Hubei, Peoples R China

[3] CNPC, Res Inst Petr Explorat & Dev, Langfang Branch, Langfang 065007, Hebei, Peoples R China

来源：

ACTA GEOLOGICA SINICA-ENGLISH EDITION | 2010年 / 84卷 / 06期

关键词：

coalbed methane reservoir; mechanism; structure; hydrodynamic; model;

D O I：

10.1111/j.1755-6724.2010.00346.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The pool-forming mechanism of coalbed methane has its own characteristics. In this paper, based on studies on the typical coal-bearing basins in China, it is pointed out that the reservoir formation of medium- to high-rank coalbed methane has experienced three critical stages: the coalbed methane generation and adsorption stage, the coalbed adsorption capacity enhancement stage, and the coalbed methane desorption-diffusion and preservation stage. The regional tectonic evolution, hydrodynamic conditions and sealing conditions play important roles in the stage of coalbed methane desorption-diffusion and preservation. Medium- to high-rank coalbed methane has three types of enrichment models, that is, the most favorable, the relatively favorable, and the unfavorable enrichment models.

引用

页码：1539 / 1546

页数：8