低透气性松软煤层增透技术研究现状及高能气体压裂新技术
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摘要
为解决低透气性松软煤层难抽采的问题,我国煤炭行业科技工作者做了大量的工作。采用文献综述的方法,对我国目前采用的水力增透技术、深孔爆破增透技术、CO_2预裂增透技术、大孔径及密集交叉钻孔卸压、液氮半溶浸煤致裂增透技术等物理增透技术和ClO_2溶蚀煤增透法、Feton试剂增透法、多组分酸溶浸煤增透法、微生物等生化法对煤的改性作用进行了评述,指出了上述方法的特点,并提出将高能气体压裂技术应用于我国煤矿。借助LS-DYNA数值分析软件,揭示了高能气体压裂技术压裂煤层的应力变化及裂隙扩展方向。
In order to solve the problem of difficulty in evacuation of low gas permeability soft coal seams,a lot of work had been done by scientific and technical workers in the coal industry of China. This article adopted the method of literature review to comment the hydraulically enhanced technology,deep-hole blasting enhanced technology,CO_2 enhanced technology,large-aperture hole and dense cross-boring pressure relief,liquid nitrogen semi-soluble cracking enhanced technology and other physical enhanced technology used in China,and ClO_2 anti-corrosion enhanced method,Feton reagent enhanced method,multi-component acid-refined coal soaking method,microbial and other biochemical methods on the modification of coal. The high-energy gas fracturing technology was proposed to apply to coal mines in China by analyzing the characteristics of the above method. The stress changes and fracture propagation direction of fractured coal seams in high-energy gas fracturing technology were revealed by the LS-DYNA numerical analysis software.
In order to solve the problem of difficulty in evacuation of low gas permeability soft coal seams,a lot of work had been done by scientific and technical workers in the coal industry of China. This article adopted the method of literature review to comment the hydraulically enhanced technology,deep-hole blasting enhanced technology,CO_2 enhanced technology,large-aperture hole and dense cross-boring pressure relief,liquid nitrogen semi-soluble cracking enhanced technology and other physical enhanced technology used in China,and ClO_2 anti-corrosion enhanced method,Feton reagent enhanced method,multi-component acid-refined coal soaking method,microbial and other biochemical methods on the modification of coal. The high-energy gas fracturing technology was proposed to apply to coal mines in China by analyzing the characteristics of the above method. The stress changes and fracture propagation direction of fractured coal seams in high-energy gas fracturing technology were revealed by the LS-DYNA numerical analysis software.
引文
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[10]张燕斌.深孔松动爆破在阳煤新景矿的应用研究[J].能源技术与管理,2015,40(2):79-81.Zhang Yanbin. Application research of deep hole loose blasting in Yangquan Xinjing Mine[J]. Energy Technology and Management,2015,40(2):79-81.
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[15]姜永东,鲜学福,刘占方.声震法提高煤储层渗透率的实验与机理[J].辽宁工程技术大学学报(自然科学版),2009,28(S1):236-239.Jiang Yongdong,Xian Xuefu,Liu Zhanfang. Experiment and mechanism of improving the permeability of coal reservoir by acoustic seismic method[J]. Journal of Liaoning Technical University(Natural Science),2009,28(S1):236-239.
[16]何学秋,张力.外加电磁场对瓦斯吸附解吸的影响规律及作用机理的研究[J].煤炭学报,2000,25(6):614-618.He XueQiu,Zhang Li. Study on the influence law and mechanism of electromagnetic field on gas adsorption and desorption[J]. Journal of China Coal Society,2000,25(6):614-618.
[17]杨宏民,张铁岗,王兆丰,等.煤层注氮驱替甲烷促排瓦斯的试验研究[J].煤炭学报,2010,35(5):792-796.Yang Hongming,Zhang Tiegang,Wang Zhaofeng,et al. Experimental study on technology of accelerating methane release by nitrogen injection in coalbed[J]. Journal of China Coal Society,2010,35(5):792-796.
[18]郭红玉,苏现波,陈俊辉,等.二氧化氯对煤储层的化学增透实验研究[J].煤炭学报,2013,38(4):633-636.Guo Hongyu,Su Xianbo,Chen Junhui,et al. Experimental study on chemical enhancement of coal reservoir by ClO2[J]. Journal of China Coal Society,2013,38(4):633-636.
[19]魏建平,王政锦,戴俊. Fenton试剂氧化降解瓦斯试验研究[J].河南理工大学报,2013,32(1):1-5.Wei Jianping,Wang Zhengjing,Dai Jun. Experimental study of coal-mine gas degradation using fenton reagent oxidative reaction system[J]. Editorial Board of Journal of HPU,2013,32(1):1-5.
[20]李全中.多组分酸对不同煤阶煤增透机理研究[D].焦作:河南理工大学,2014.
[21]陈东科,王璐,金龙哲,等.微生物降解煤矿瓦斯的研究[J].煤炭学报,2006,31(5):607-609.Chen Dongke,Wang Lu,Jin Longzhe,et al. The preliminary research on coal-bed gas degradation by microorganism[J]. Journal of China Coal Society,2006,31(5):607-609.
[22]康红普,冯彦军.定向水力压裂工作面煤体应力监测及其演化规律研究[J].煤炭学报,2012,37(12):1953-1959.Kang Hongpu,Feng Yanjun. Monitoring of stress change in coal seam caused by directional hydraulic fracturing in working face with strong roof and its evolution[J]. Journal of China Coal Society,2012,37(12):1953-1959.
[23]李晓红,卢义玉,赵瑜.高压脉冲射流提高松软煤层透气性的研究[J].煤炭学报,2008,33(12):1386-1390.Li Xiaohong,Lu Yiyu,Zhao Yu. Study on improving the gas permeability of soft coal seam by high pressure pulse jet[J]. Journal of China Coal Society,2008,33(12):1386-1390.
[24]林柏泉,吕有厂,李宝玉,等.高压磨料射流割缝技术及其在防突工程中的应用[J].煤炭学报,2007,32(9):959-963.Lin Boquan,LüYouchang,Li Baoyu,et al. High-pressure abrasive hydraulic cutting seam technology and its application in outbursts prevention[J]. Journal of China Coal Society,2007,32(9):959-963.
[25]步玉环,王瑞和,周卫东.旋转射流破岩成孔规律研究[J].岩石力学与工程学报,2003,22(4):664-668.Bu Yuhuan,Wang Ruihe,Zhou Weidong. Study on rock drilling by swirling jet[J]. Chinese Journal of Rock Mechanics and Engineering,2003,22(4):664-668.
[2]潘文霞,张瑞新.急倾斜煤层群水力增透防突技术研究与应用[D].北京:中国矿业大学,2016.
[3]吕有厂.水力压裂技术在高瓦斯低透气性矿井中的应用[J].重庆大学学报,2010,33(7):102-107.Lü Youchang. Application of hydraulic fracturing technology in the high gas and low permeability mine[J]. Journal of Chongqing University,2010,33(7):102-107.
[4]郭启文,韩炜,张文勇,等.煤矿井下水力压裂增透抽采机理及应用研究[J].煤炭科学技术,2011,39(12):60-64.Guo Qiwen,Han Wei,Zhang Wenyong,et al. Study on mechanism and application of hydraulic fracturing and drilling in underground coal mine[J]. Coal Science and Technology,2011,39(12):60-64.
[5]段康廉,冯增朝,赵阳升,等.低渗透煤层钻孔与水力割缝瓦斯排放的实验研究[J].煤炭学报,2002,37(1). 50-53.Duan Kanglian,Feng Zengchao,Zhao Yangsheng,et al. Experimental study on gas drainage in low permeability coal seam drilling and hydraulic cutting[J]. Journal of China Coal Society,2002,37(1):50-53.
[6]王浩.页岩气储层高能气体压裂液体火药配方优化研究[D].西安:西安石油大学,2017.
[7]刘明举,孔留安,郝富昌,等.水力冲孔技术在严重突出煤层中的应用[J].煤炭学报,2005,30(4):451-454.Liu Mingju,Kong Liuan,Hao Fuchang,et al. Application of hydraulic flushing technology in severe outburst coal[J]. Journal of China Coal Society,2005,30(4):451-454.
[8]许胜铭,王建伟.突出煤层多重水力卸压增透技术的现场试验研究[J].安全与环境工程,2014,20(3):154-159.Xu Shengming,Wang Jianwei. Field test study of multi-hydraulic pressure relief and increasing permeability for the outburst coal seam[J]. Safety and environmental engineering,2014,20(3):154-159.
[9]刘健.低透气煤层深孔预裂爆破增透技术研究及应用[D].淮南:安徽理工大学,2008.
[10]张燕斌.深孔松动爆破在阳煤新景矿的应用研究[J].能源技术与管理,2015,40(2):79-81.Zhang Yanbin. Application research of deep hole loose blasting in Yangquan Xinjing Mine[J]. Energy Technology and Management,2015,40(2):79-81.
[11]尹根成,张英华.水压爆破造缝提高煤层瓦斯抽放率技术[J].煤炭工程,2006(12):73-74.Yin Gencheng,Zhang Yinghua. Water pressure blasting seam to improve coal seam gas drainage rate[J]. Coal Engineering,2006(12):73-74.
[12]岳立新,詹广强,孙可明,等.超临界CO2提高煤层渗透性的实验[J].辽宁工程技术大学学报,2014,7(1):907-911.Yue Lixin,Zhan Guangqiang,Sun Keming,et al. Experiment of supercritical CO2increasing coal seam permeability[J]. Journal of Liaoning Technical University,2014,7(1):907-911.
[13]赵世铎,张晓峰,王聪利.大直径钻孔瓦斯抽放技术[J].煤矿安全,2001(2):12-15.Zhao Shiduo,Zhang Xiaofeng,Wang Congli. Large diameter borehole gas drainage technology[J]. Safety in Coal Mines,2001,(2):12-15.
[14]易丽军.突出煤层密集钻孔瓦斯预抽的数值试验[J].煤矿安全,2010(2):1-4.Yi Lijun. Numerical test for pre-extraction of gas in dense coal seams[J]. Safety in Coal Mines,2010(2):1-4.
[15]姜永东,鲜学福,刘占方.声震法提高煤储层渗透率的实验与机理[J].辽宁工程技术大学学报(自然科学版),2009,28(S1):236-239.Jiang Yongdong,Xian Xuefu,Liu Zhanfang. Experiment and mechanism of improving the permeability of coal reservoir by acoustic seismic method[J]. Journal of Liaoning Technical University(Natural Science),2009,28(S1):236-239.
[16]何学秋,张力.外加电磁场对瓦斯吸附解吸的影响规律及作用机理的研究[J].煤炭学报,2000,25(6):614-618.He XueQiu,Zhang Li. Study on the influence law and mechanism of electromagnetic field on gas adsorption and desorption[J]. Journal of China Coal Society,2000,25(6):614-618.
[17]杨宏民,张铁岗,王兆丰,等.煤层注氮驱替甲烷促排瓦斯的试验研究[J].煤炭学报,2010,35(5):792-796.Yang Hongming,Zhang Tiegang,Wang Zhaofeng,et al. Experimental study on technology of accelerating methane release by nitrogen injection in coalbed[J]. Journal of China Coal Society,2010,35(5):792-796.
[18]郭红玉,苏现波,陈俊辉,等.二氧化氯对煤储层的化学增透实验研究[J].煤炭学报,2013,38(4):633-636.Guo Hongyu,Su Xianbo,Chen Junhui,et al. Experimental study on chemical enhancement of coal reservoir by ClO2[J]. Journal of China Coal Society,2013,38(4):633-636.
[19]魏建平,王政锦,戴俊. Fenton试剂氧化降解瓦斯试验研究[J].河南理工大学报,2013,32(1):1-5.Wei Jianping,Wang Zhengjing,Dai Jun. Experimental study of coal-mine gas degradation using fenton reagent oxidative reaction system[J]. Editorial Board of Journal of HPU,2013,32(1):1-5.
[20]李全中.多组分酸对不同煤阶煤增透机理研究[D].焦作:河南理工大学,2014.
[21]陈东科,王璐,金龙哲,等.微生物降解煤矿瓦斯的研究[J].煤炭学报,2006,31(5):607-609.Chen Dongke,Wang Lu,Jin Longzhe,et al. The preliminary research on coal-bed gas degradation by microorganism[J]. Journal of China Coal Society,2006,31(5):607-609.
[22]康红普,冯彦军.定向水力压裂工作面煤体应力监测及其演化规律研究[J].煤炭学报,2012,37(12):1953-1959.Kang Hongpu,Feng Yanjun. Monitoring of stress change in coal seam caused by directional hydraulic fracturing in working face with strong roof and its evolution[J]. Journal of China Coal Society,2012,37(12):1953-1959.
[23]李晓红,卢义玉,赵瑜.高压脉冲射流提高松软煤层透气性的研究[J].煤炭学报,2008,33(12):1386-1390.Li Xiaohong,Lu Yiyu,Zhao Yu. Study on improving the gas permeability of soft coal seam by high pressure pulse jet[J]. Journal of China Coal Society,2008,33(12):1386-1390.
[24]林柏泉,吕有厂,李宝玉,等.高压磨料射流割缝技术及其在防突工程中的应用[J].煤炭学报,2007,32(9):959-963.Lin Boquan,LüYouchang,Li Baoyu,et al. High-pressure abrasive hydraulic cutting seam technology and its application in outbursts prevention[J]. Journal of China Coal Society,2007,32(9):959-963.
[25]步玉环,王瑞和,周卫东.旋转射流破岩成孔规律研究[J].岩石力学与工程学报,2003,22(4):664-668.Bu Yuhuan,Wang Ruihe,Zhou Weidong. Study on rock drilling by swirling jet[J]. Chinese Journal of Rock Mechanics and Engineering,2003,22(4):664-668.