三轴应力条件下煤层气储层渗流滞后效应试验研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (335 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要利用自主研发的含瓦斯煤岩热–流–固耦合三轴伺服渗流装置，以型煤试件为研究对象，进行不同温度和不同围压条件下煤层气储层渗透率演化规律的试验研究。研究煤层气在煤层气储层中的运移规律并采取相应的煤层气抽放措施，可以预防煤与瓦斯突出或者对煤层气储层中赋存的煤层气进行合理利用，对于矿井建设和实现煤与煤层气共采均具有重要的实际意义。试验结果表明：(1) 在不同试验条件下，煤岩三轴压缩试验过程中普遍存在着煤层气渗流速度变化滞后于应变和应力的现象，煤岩的体积最小点滞后量较大；(2) 煤岩的体积最小点滞后量和应力峰值点滞后量在温度越高的试验条件下呈减小趋势；(3) 煤岩所受围压通过压缩煤样侧壁，导致其内部结构变化而对煤岩的煤层气渗流速度起到阻碍作用，围压越大，体积最小点滞后量越大。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：采矿工程, 三轴压缩, 渗透, 滞后量

Abstract：By using the triaxial servo-controlled seepage equipment for thermo-fluid-solid coupling of coal containing methane，permeability under conditions of different confining pressures and temperatures were determined. Studying the migration law of coalbed methane and taking appropriate measures to coalbed methane can prevent coal and gas outburst，or reasonably use the methane in the coalbed methane reservoir. It is of practical significance for mine construction and coalbed methane mining. The experimental results show that：(1) Under different experimental conditions，the change of seepage velocity lags behind the change of strain and stress of coal under triaxial compression；and the lagging amount of the minimum volumetric strain is large. (2) The lagging amount of the minimum volumetric strain and the peak stress both decrease with the increase of temperature. (3) The confining pressure hinders the gas seepage through the changes of internal structure caused by compression effect of confining pressure；and the lagging of the minimum volume increases with the increase of confining pressure.

Key words： mining engineering triaxial compression seepage lagging quantity

收稿日期: 2012-03-01

引用本文:

许江1，2，周婷1，2，李波波1，2，张丹丹1，2，刘东1，2. 三轴应力条件下煤层气储层渗流滞后效应试验研究[J]. 岩石力学与工程学报, 2012, 31(9): 1854-1861.
XU Jiang1，2，ZHOU Ting1，2，LI Bobo1，2，ZHANG Dandan1，2，LIU Dong1，2. EXPERIMENTAL RESEARCH ON SEEPAGE LAGGING EFFECTS OF COALBED METHANE RESERVOIR UNDER CONDITION OF TRIAXIAL STRESS. , 2012, 31(9): 1854-1861.

链接本文:

http://www.rockmech.org/CN/Y2012/V31/I9/1854

[1]	朱珍德，张爱军，徐卫亚. 脆性岩石全应力-应变过程渗流特性试验研究[J]. 岩土力学，2002，23(5)：555-563.(ZHU Zhende，ZHANG Aijun，XU Weiya. Experimental research on complete stress-strain process seepage characteristics of brittle rock[J]. Rock and Soil Mechanics，2002，23(5)：555-563.(in Chinese))
[4]	姜振泉，季梁军. 岩石全应力-应变过程渗透特性试验研究[J]. 岩土工程学报，2001，23(2)：153-156.(JIANG Zhenquan，JI Liangjun. The laboratory study on behavior of permeability of rock along the complete stress-strain path[J]. Chinese Journal of Geotechnical Engineering，2001，23(2)：153-156.(in Chinese))
[8]	刘延保. 基于细观力学试验的含瓦斯煤体变形破坏规律研究[博士学位论文][D]. 重庆：重庆大学，2009.(LIU Yanbao. Study on the deformation and damage rules of gas-filled coal based on meso- mechanical experiments[Ph. D. Thesis][D]. Chongqing：Chongqing University，2009.(in Chinese) " target="_blank">
[13]	杨永杰，楚俊，郇冬至，等. 煤岩固液耦合应变-渗透率试验[J]. 煤炭学报，2008，33(7)：760-764.(YANG Yongjie，CHU Jun，HUAN Dongzhi，et al. Experiment of coal?s strain-permeability rate under solid and liquid coupling condition[J]. Journal of China Coal Society，2008，33(7)：760-764.(in Chinese))
[3]	李树刚，钱鸣高，石平五. 煤样全应力-应变过程中的渗透系数-应变方程[J]. 煤田地质与勘探，2001，29(1)：22-24.(LI Shugang，QIAN Minggao，SHI Pingwu. Permeability-strain equation relation to complete stress strain path of coal sample[J]. Coal Geology and Exploration，2001，29(1)：22-24.(in Chinese)) " target="_blank">
[7]	易俊，姜永东，鲜学福. 应力场、温度场瓦斯渗流特性实验研究[J]. 中国矿业，2007，16(5)：113-116.(YI Jun，JIANG Yongdong，XIAN Xuefu. An experimental research on the characteristics of methane seepage in stress field and temperature field[J]. China Mining Magazine，2007，16(5)：113-116.(in Chinese))
[9]	唐巨鹏，潘一山，李成全，等. 有效应力对煤层气解吸渗流影响试验研究[J]. 岩石力学与工程学报，2006，25(8)：1 563-1 568. (TANG Jupeng，PAN Yishan，LI Chengquan，et al. Experimental study on effect of effective stress on desorption and seepage of coalbed methane[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(8)：1 563-1 568.(in Chinese))
[12]	尹光志，李广治，赵洪宝，等. 煤岩全应力-应变过程中瓦斯流动特性试验研究[J]. 岩石力学与工程学报，2010，29(1)：170-175. (YIN Guangzhi，LI Guangzhi，ZHAO Hongbao，et al. Experimental research on gas flow properties of coal specimens in complete stress-strain process[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(1)：170-175.(in Chinese))
[14]	许江，彭守建，尹光志，等. 含瓦斯煤热流固耦合三轴伺服渗流装置的研制及应用[J]. 岩石力学与工程学报，2010，29(5)：907-914.(XU Jiang，PENG Shoujian，YIN Guangzhi，et al. Development and application of triaxial servo-controlled seepage equipment for thermo-fluid-solid coupling of coal containing methane[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：907-914.(in Chinese))
[16]	尤明庆. 围压对杨氏模量的影响与裂隙摩擦的关系[J]. 岩土力学，2003，24(增)：167-170.(YOU Mingqing. Effect of confining pressure on the Young?s modulus of rock specimen and the friction in fissures[J]. Rock and Soil Mechanics，2003，24(Supp.)：167-170.(in Chinese))
[2]	曹树刚，李勇，郭平，等. 型煤与原煤全应力-应变过程渗流特性对比研究[J]. 岩石力学与工程学报，2010，29(5)：899-906. (CAO Shugang，LI Yong，GUO Ping，et al. Comparative research on permeability characteristics in complete stress-strain process of briquettes and coal samples[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：899-906.(in Chinese))
[5]	贺玉龙，杨立中. 温度和有效应力对砂岩渗透率的影响机制研究[J]. 岩石力学与工程学报，2005，24(14)：2 420-2 427.(HE Yulong，YANG Lizhong. Mechanism of effects of temperature and effective stress on permeability of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(14)：2 420-2 427.(in Chinese)) " target="_blank">
[6]	李志强，鲜学福. 煤体渗透率随温度和应力变化的实验研究[J]. 辽宁工程技术大学学报：自然科学版，2009，28(增)：156-159.(LI Zhiqiang，XIAN Xuefu. Study on experiment of coal permeability with temperature and stress change[J]. Journal of Liaoning Technical University：Natural Science，2009，28(Supp.)：156-159.(in Chinese))
[10]	孙培德，凌志仪. 三轴应力作用下煤渗透率变化规律实验[J]. 重庆大学学报：自然科学版，2000，23(增)：28-31.(SUN Peide，LING Zhiyi. Experimental study of the law for permeability of coal under action of triaxial compression[J]. Journal of Chongqing University：Natural Science，2000，23(Supp.)：28-31.(in Chinese))
[11]	张宏敏. 砂岩全应力-应变过程气体渗透特性实验[J]. 煤炭学报，2009，34(8)：1 063-1 066.(ZHANG Hongmin. Experiment on gaseous seepage properties of sandstone in complete stress-strain process[J]. Journal of China Coal Society，2009，34(8)：1 063-1 066. (in Chinese))
[15]	冯子军，万志军，赵阳升，等. 高温三轴应力下无烟煤、气煤煤体渗透特性的试验研究[J]. 岩石力学与工程学报，2010，29(4)：689-696.(FENG Zijun，WAN Zhijun，ZHAO Yangsheng，et al. Experimental study of permeability of anthracite and gas coal masses under high temperature and triaxial stress[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(4)：689-696.(in Chinese))