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地球科学进展  2012, Vol. 27 Issue (3): 262-267    DOI: 10.11867/j.issn.1001-8166.2012.03.0262
综述与评述     
煤吸附气体诱导的基质膨胀研究进展
段利江1,2,唐书恒2,夏朝辉1,张铭1
1. 中国石油勘探开发研究院亚太研究所, 北京100083;2. 中国地质大学(北京)能源学院, 北京100083
A Review on Gas Sorption-induced Coal Swelling
Duan Lijiang1,2, Tang Shuheng2, Xia Zhaohui1, Zhang Ming1
1. Asia-Pacific Department, PetroChina Research Institute of Petroleum Exploration & Development, Beijing100083, China;2.School of Energy Resources, China University of Geosciences, Beijing100083, China
 全文: PDF(949 KB)  
摘要:

煤层渗透率变化是注气提高煤层气采收率过程中最为关注的问题之一,而煤的吸附膨胀是造成渗透率伤害的主控因素。系统总结了国内外有关煤吸附膨胀的研究成果,发现争议较多,认为其主要原因在于对膨胀机理的认识深度不够及研究方法不一。相对于膨胀计法和应力计法,光学法观测煤膨胀效应的精度较高,建议尽量采用大块的煤样,以增强对煤储层的代表性。在煤膨胀机理的研究中,建议重点分析煤大分子结构固有的力学性质,及CO2对煤分子结构可能造成的影响。

关键词: 吸附膨胀CO2    
Abstract:

The key issue of enhancing coalbed methane recovery by gas injection is reservoir permeability variation, which is controlled by gas-induced coal swelling. The research finding on coal swelling were collected and analyzed, and it was found that there exist disagreements, which is due to the lack of understanding about swelling mechanisms and different experimental methods. Compared with dilatometer and strain gauge, optical method is more accurate when measuring coal swelling. However, in future work, larger block should be adopted to represent coal reservoir more effectively. When conducting research on coal swelling mechanism, more attention should be paid to the original mechanical property of coal macromolecular structure and the impact on coal cross-linked network of CO2.

Key words: Coal    Sorption    Swelling    CO2
收稿日期: 2011-11-29 出版日期: 2010-03-10
:  P618.11  
基金资助:

国家自然科学基金项目“注气驱替煤层甲烷过程中煤基质差异膨胀效应实验研究”(编号:40772096)资助.

通讯作者: 段利江(1982-),男,河南商丘人,博士,工程师,主要从事煤层气勘探开发研究.      E-mail: duanlj@petrochina.com.cn
作者简介: 段利江(1982-),男,河南商丘人,博士,工程师,主要从事煤层气勘探开发研究. E-mail:duanlj@petrochina.com.cn
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引用本文:

段利江,唐书恒,夏朝辉,张铭. 煤吸附气体诱导的基质膨胀研究进展[J]. 地球科学进展, 2012, 27(3): 262-267.

Duan Lijiang, Tang Shuheng, Xia Zhaohui, Zhang Ming. A Review on Gas Sorption-induced Coal Swelling. Advances in Earth Science, 2012, 27(3): 262-267.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2012.03.0262        http://www.adearth.ac.cn/CN/Y2012/V27/I3/262

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