煤层气吸附解吸规律研究进展

doi:10.11885/j.issn.16745086.2015.11.12.05

西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (4): 104-112.DOI: 10.11885/j.issn.16745086.2015.11.12.05

煤层气吸附解吸规律研究进展

朱苏阳, 杜志敏, 李传亮, 彭小龙, 王超文

油气藏地质及开发工程国家重点实验室·西南石油大学, 四川成都 610500

收稿日期:2015-11-12 修回日期:2017-05-14 出版日期:2017-08-01 发布日期:2017-08-01
通讯作者: 杜志敏,E-mail:duzhimin@swpu.edu.cn
作者简介:朱苏阳,1989年生,男,江苏如皋人,博士研究生,主要从事油藏工程和渗流力学研究。E-mail:zhusuyang1989@aliyun.com;杜志敏,1953年生,女,汉族,陕西西安人,教授,博士生导师,主要从事气田开发工程、油气藏数值模拟及现代油气藏经营管理方面的教学、基础理论及应用技术研究。E-mail:duzhimin@swpu.edu.cn;李传亮,1962年生,男,汉族,山东嘉祥人,教授,博士,主要从事油气田开及油藏工程发方面的研究。E-mail:cllipe@qq.com;彭小龙,1973年生,男,汉族,四川成都人,副研究员,博士,主要从事油气藏渗流力学及数值模拟的理论、软件开发,复杂油气藏维地质建模和油藏数值模拟一体化应用。E-mail:peng_xl@126.com;王超文,1991年生,男,汉族,陕西西安人,博士研究生,主要从事油气田开发方面的研究。E-mail:wcwking@qq.com
基金资助:
国家自然科学基金（51474179）；国家科技重大专项（2016ZX05066004001）

The Adsorption and Desorption of Coal Bed Methane: A Review

ZHU Suyang, DU Zhimin, LI Chuanliang, PENG Xiaolong, WANG Chaowen

State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2015-11-12 Revised:2017-05-14 Online:2017-08-01 Published:2017-08-01

摘要/Abstract

摘要： 调研了煤层气吸附理论与实验、水对煤层气吸附解吸过程的影响与煤层气液固吸附理论体系等3方面的研究进展，总结了气相吸附理论在煤层气吸附研究中取得的成果以及水对煤层气吸附的影响作用，分析了气相吸附理论在解释煤层气吸附状态时存在的问题，介绍了最新的液相吸附理论及在此基础上的煤层气复合解吸理论。不同相态的水对煤层气的吸附作用不同，煤样含水饱和度较低时，气相的平衡水可以显著降低煤层气的吸附量；当含水饱和度达到一定临界值时，含水量对煤层气吸附量变化的影响不大；而煤样中含水进一步增大时，注水煤样中液相水可以增加煤层气的吸附量。煤层气的赋存状态与气相吸附规律并不相符，而煤层气的液相吸附理论可以同时解决煤岩在水环境下生烃的条件及气相吸附没有临界解吸压力的问题；在液相吸附的条件下，煤层气的解吸过程是由气相及液相解吸共同控制的复合解吸过程。

关键词: 煤层气, 吸附过程, 解吸过程, 液相吸附, 复合解吸

Abstract: In this study, we investigated progress in the following three aspects of coal bed methane(CBM) research:adsorption theory and experiments, the effects of water on adsorption and desorption, and liquid-solid adsorption theory. We summarized the achievements of gas phase adsorption theory in studying CBM adsorption, and, in particular, the influence of water. In addition, existing complications in gas phase adsorption theory with regards to CBM adsorption were analyzed, and the new liquid phase adsorption theory and CBM compound desorption model built on its basis were introduced. Different water phases have a variable impact on CBM adsorption. When water saturation is low in the coal sample, equilibrium moisture in the gas phase can significantly reduce the amount of CBM adsorbed. As water saturation reaches critical levels, water content has little effect on the amount of CBM adsorbed. Upon further increase in water content in the coal sample, liquid-state water in the injected coal sample increases the quantity of CBM adsorbed. The occurrence of CBM is not in agreement with the existing gas phase adsorption model. In contrast, the liquid phase adsorption model explains both the hydrocarbon generation condition of coal in an aqueous environment and the absence of critical desorption pressure in gas phase adsorption. Under the conditions of liquid phase adsorption, the desorption of CBM is a compound desorption process controlled by both gas phase and liquid phase desorption.

Key words: coal bed methane, adsorption process, water, desorption process, liquid phase adsorption, compound desorption

中图分类号:

TE37

朱苏阳, 杜志敏, 李传亮, 彭小龙, 王超文. 煤层气吸附解吸规律研究进展[J]. 西南石油大学学报(自然科学版), 2017, 39(4): 104-112.

ZHU Suyang, DU Zhimin, LI Chuanliang, PENG Xiaolong, WANG Chaowen. The Adsorption and Desorption of Coal Bed Methane: A Review[J]. 西南石油大学学报(自然科学版), 2017, 39(4): 104-112.

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煤层气吸附解吸规律研究进展

The Adsorption and Desorption of Coal Bed Methane: A Review

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