不同性质煤的微观特性及渗透特性对比试验研究

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Abstract Tests of microscopic characteristics and seepage properties were done respectively，using different coals from the typical coal mines. The results show that specific surface area and adsorption/desorption capacity of outburst coal is higher than those of delay outburst coal and non-outburst coal，and delay outburst coal at intermediate between the two others. Adsorption capacity of outburst coal is strong，desorption velocity is very fast too. It can form very high gas pressure which enhance destructiveness of coal-rock. Permeability of non- outburst coal is about 4 times higher than those of other coals at the largest department. If coal?s seepage properties are excellent，methane moves very easy in the coal seam in which gas storage condition is very poor and methane detaches very easy from it. Conversely，the outburst risk may increase. It is shown that the seepage property is an important index of the outburst risk of the coal seam. In a word，the seepage property and microscopic characteristics of coal are closely related to which the coal has strong adsorption/desorption characteristics，relatively poor seepage property，rather low strength，and is easy to fail. So it has very high outburst risk.

Key words： mining engineering microscopic characteristics seepage properties adsorption/desorption characteristics specific surface area coal and mathane outburst

Received: 07 October 2010

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http://www.rockmech.org/EN/Y2011/V30/I3/500

[2]	BUSCH A，GENSTERBLUM Y，KROOSS B M，et al. Investigation of high-pressure selective adsorption/desorption behavior of CO2 and CH4 on coal：an experimental study[J]. International Journal of Coal Geology，2006，66(3)：53-68. " target="_blank">
[15]	张群，崔永君，钟玲文，等. 煤吸附甲烷的温度-压力综合吸附模型[J]. 煤炭学报，2008，33(11)：1 272-1 278.(ZHANG Qun，CUI Yongjun，ZHONG Lingwen，et al. Temperature-pressure comprehensive adsorption model for coal adsorption of methane[J]. Journal of China Coal Society，2008，33(11)：1 272-1 278.(in Chinese)) " target="_blank">
[16]	尹光志，李晓泉，赵洪宝，等. 地应力对突出煤瓦斯渗流影响试验研究[J]. 岩石力学与工程学报，2008，27(12)：2 557-2 561.(YIN Guangzhi，LI Xiaoquan，ZHAO Hongbao，et al. Experimental study of outburst coal?s gas seepage underground stress[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(12)：2 557-2 561.(in Chinese)) " target="_blank">
[4]	GAMSON P D，BEAMISH B B，JOHNSON D P. Coal microstructure and micropermeability and their effects on natural gas recovery[J]. Fuel，1993，72(1)：87-99. " target="_blank">
[17]	尹光志，李小双，赵洪宝，等. 瓦斯压力对突出煤瓦斯渗流影响试验研究[J]. 岩石力学与工程学报，2009，28(4)：697-702.(YIN Guangzhi，LI Xiaoshuang，ZHAO Hongbao，et al. Experimental study of effect of gas pressure on gas seepage of outburst coal[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(4)：697-702. (in Chinese))
[19]	赵阳升，冯增朝，文再明. 煤体瓦斯愈渗机制与研究方法[J]. 煤炭学报，1999，29(3)：293-297.(ZHAO Yangsheng，FENG Zengchao，WEN Zaiming. The percolation mechanism and research method of methane in coal mass[J]. Journal of China Coal Society，1999，29(3)：293-297.(in Chinese)) " target="_blank">
[21]	MCKEE C R，BUMB A C，KOENIG R A. Stress dependent permeability and porosity of coal[M]. Rocky Mountain Association of Geologist，1998：143-153. " target="_blank">
[25]	WOLD M B，ONNELL L D C，CHOI S K. The role of spatial variability in coal seam parameters on gas outburst behaviour during coal mining[J]. International Journal of Coal Geology，2008，75(1)：1-12.
[32]	李晓泉. 含瓦斯煤力学特性及煤与瓦斯延期突出机制研究[博士学位论文][D]. 重庆：重庆大学，2010.(LI Xiaoquan. Study of experiment of gas-filled coal mechanical properties and mechanism of delay outburst coal and gas[Ph. D. Thesis][D]. Chongqing：Chongqing University，2010.(in Chinese)) " target="_blank">
[7]	王继仁，邓存宝，邓汉忠. 煤与瓦斯突出微观机制研究[J]. 煤炭学报，2008，33(2)：131-135.(WANG Jiren，DENG Cunbao，DENG Hanzhong. Study on the microcosmic mechanism for coal-gas outburst[J]. Journal of China Coal Society，2008，33(2)：131-135.(in Chinese))
[10]	张慧. 煤孔隙的成因类型及其研究[J]. 煤炭学报，2001，26(1)：40-44.(ZHANG Hui. Genetical type of pores in coal reservoir and its research significance[J]. Journal of China Coal Society，2001，26(1)：40-44.(in Chinese)) " target="_blank">
[13]	于洪观，范维唐，孙茂远，等. 煤中甲烷等温吸附模型的研究[J]. 煤炭学报，2004，29(4)：463-467.(YU Hongguan，FAN Weitang，SUN Maoyuan，et al. Study on fitting models for methane isotherms adsorption of coals[J]. Journal of China Coal Society，2004，29(4)：463-467.(in Chinese)) " target="_blank">
[18]	杨天鸿，徐涛，刘建新，等. 应力-损伤-渗流耦合模型及在深部煤层瓦斯卸压实践中的应用[J]. 岩石力学与工程学报，2005，24(16)：2 900-2 905.(YANG Tianhong，XU Tao，LIU Jianxin，et al. Coupling model of stress-damage-flow and its application to the investigation of instantaneous seepage mechanism for gas during unloading in coal seam with depth[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 900-2 905.(in Chinese)) " target="_blank">
[22]	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. Experimental of coal?s strain-permeability under solid and liquid coupling conditions[J]. Journal of China Coal Society，2008，33(7)：760-764.(in Chinese))
[26]	隆清明，赵旭生，孙东玲，等. 吸附作用对煤的渗透率影响规律试验研究[J]. 煤炭学报，2008，33(9)：1 030-1 034.(LONG Qingming，ZHAO Xusheng，SUN Dongling，et al. Experimental study on coal permeability by adsorption[J]. Journal of China Coal Society，2008，33(9)：1 030-1 034.(in Chinese)) " target="_blank">
[1]	PINI R，OTTIGER S，BURLINI L，et al. Sorption of carbon dioxide，methane and nitrogen in dry coals at high pressure and moderate temperature[J]. International Journal of Greenhouse Gas Control，2010，4(4)：90-101. " target="_blank">
[5]	BODDEN W R，EHRLICH R. Permeability of coals and characteristics of desorption tests：implications for coalbed methane production[J]. International Journal of Coal Geology，1998，35(1)：333-347. " target="_blank">
[6]	LAXMINARAYANA C，CROSDALE P J. Role of coal type and rank on methane sorption characteristics of Bowen Basin，Australia coals[J]. International Journal of Coal Geology，1999，40(4)：309-325. " target="_blank">
[9]	郭立稳，俞启香，王凯. 煤吸附瓦斯过程温度变化的试验研究[J]. 中国矿业大学学报，2000，29(3)：287-289.(GUO Liwen，YU Qixiang，WANG Kai. Experimental study on change in coal temperature during adsorbing gas[J]. Journal of China University of Mining and Technology，2000，29(3)：287-289.(in Chinese)) " target="_blank">
[12]	于洪观，范维唐，孙茂远，等. 煤对CH4/CO2二元气体等温吸附特性及其预测[J]. 煤炭学报，2005，30(5)：618-622.(YU Hongguan，FAN Weitang，SUN Maoyuan，et al. Characteristics and predictions for adsorption isotherms of methane/carbon dioxide binary gas on coals[J]. Journal of China Coal Society，2005，30(5)：618-622.(in Chinese))
[3]	ALEXEEV A D，FELDMAN E P，VASILENKO T A. Methane desorption from a coal-bed[J]. Fuel，2007，86(16)：2 574-2 580. " target="_blank">
[8]	降文萍，崔永君，张群，等. 不同变质程度煤表面与甲烷相互作用的量子化学研究[J]. 煤炭学报，2007，32(3)：292-295.(JIANG Wenping，CUI Yongjun，ZHANG Qun，et al. The quantum chemical study on different rank coals surface interacting with methane[J]. Journal of China Coal Society，2007，32(3)：292-295.(in Chinese))
[11]	马东民. 煤储层的吸附特征试验综合分析[J]. 北京科技大学学报，2003，25(4)：291-294.(MA Dongmin. Synthetical analysis of adsorbing characteristic experiment of coal seams[J]. Journal of University of Science and Technology Beijing，2003，25(4)：291-294.(in Chinese)) " target="_blank">
[14]	张占存，马丕梁. 水分对不同煤种瓦斯吸附特性影响的试验研究[J]. 煤炭学报，2008，33(2)：144-147.(ZHANG Zhancun，MA Piliang，Experimental study on moisture effects on the gas absorption speciality of different kinds of coals[J]. Journal of China Coal Society，2008，33(2)：144-147.(in Chinese))
[20]	ENEVER J R E，HENNING A. The relationship between permeability and effective stress for Australian coal and its implications with resport to coalbed methane exploration and reservoir modeling[C]// Proceedings of the 1997 International Coalbed Methane Symposium. [S.l.]：[s.n.]，1997：13-22. " target="_blank">
[24]	CLARKSON C R，BUSTIN R M. The effect of pore structure and gas pressure upon the transport properties of coal：a laboratory and modeling study[J]. Fuel，1999，78(11)：1 333-1 344. " target="_blank">
[28]	张有生，秦勇，陈家良. 煤储层渗透率的非均质性模型[J]. 中国矿业大学学报，1998，27(1)：43-46.(ZHANG Yousheng，QIN Yong，CHEN Jialiang. Model of the hetergeneous permeability of coal reservoir[J]. Journal of China University of Mining and Technology，1998，27(1)：43-46.(in Chinese)) " target="_blank">
[23]	杨永杰，宋扬，陈绍杰. 煤岩全应力-应变过程渗透性特征试验研究[J]. 岩土力学，2007，28(2)：381-385.(YANG Yongjie，SONG Yang，CHEN Shaojie. Test study on permeability properties of coal specimen in complete stress-strain process[J]. Rock and Soil Mechanics，2007，28(2)：381-385.(in Chinese)) " target="_blank">
[30]	周世宁，林柏泉. 煤层瓦斯赋存与流动理论[M]. 北京：煤炭工业出版社，1990.(ZHOU Shining，LIN Boquan. The theory of coal seam?s gas occurrence and flow[M]. Beijing：China Coal Industry Publishing House，1990.(in Chinese)) " target="_blank">
[27]	徐涛，杨天鸿，唐春安，等. 孔隙压力作用下煤岩破裂及声发射特性的数值模拟[J]. 岩土力学，2004，25(10)：1 560-1 565.(XU Tao，YANG Tianhong，TANG Chun?an，et al. Numerical simulation of failure and induced acoustic emission characteristics of coal/rock under pore pressure[J]. Rock and Soil Mechanics，2004，25(10)：1 560- 1 565.(in Chinese)) " target="_blank">
[29]	韩军，张宏伟，霍丙杰. 向斜构造煤与瓦斯突出机制探讨[J]. 煤炭学报，2008，33(8)：908-913.(HAN Jun，ZHANG Hongwei，HUO Bingjie. Discussion of coal and gas outburst mechanism of syncline[J]. Journal of China Coal Society，2008，33(8)：908-913.(in Chinese))
[31]	尹光志，王登科，张东明，等. 两种含瓦斯煤样变形特性与抗压强度的试验分析[J]. 岩石力学与工程学报，2009，28(2)：410-417.(YIN Guangzhi，WANG Dengke，ZHANG Dongming，et al. Test analysis of deformation characteristics and compressive strengths of two types of coal specimens containing gas[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：410-417.(in Chinese))