亚美大宁煤矿定向水平长钻孔预抽煤层瓦斯合理预抽期研究
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摘要
瓦斯灾害是影响我国煤矿安全生产的最大威胁,瓦斯抽采是防治煤矿瓦斯灾害事故的根本措施,瓦斯抽采较好地解决了瓦斯突出、瓦斯超限等问题,但存在着预抽时间不能合理确定的问题。为了解决这一问题,针对不同的布孔方式,确定合理预抽期对提高矿井瓦斯抽采效果、避免盲目抽采、实现矿井的高产高效有着重要意义。本文在现场取样的基础上,通过实验室模拟,初步确定了亚美大宁煤矿3号煤层消突临界瓦斯含量及消突临界瓦斯压力值,并基于3号煤层定向水平长钻孔的布孔参数、瓦斯抽采量与时间的关系,确定了定向水平长钻孔预抽瓦斯实际预抽率的计算方法,在此基础上,结合预抽期的影响因素,建立了亚美大宁煤矿定向水平长钻孔预抽煤层瓦斯合理预抽期评价模型,确定了不同布孔方式下的定向水平长钻孔预抽回采面煤层瓦斯的合理预抽期,并探讨了回采面合理的布孔参数。
在分析亚美大宁煤矿地质演化史和地质构造特征的基础上,介绍了亚美大宁煤矿区域综合防突措施,分析了采用顺层钻孔预抽煤层瓦斯作为该矿区域消突措施区域的必要性及可行性。结合亚美大宁煤矿定向水平长钻孔的布孔参数、不同预抽时间下的瓦斯抽采量分不同深度组别(200m组、400m组、600m组)预抽钻孔对定向水平长钻孔预抽煤层瓦斯的抽放效果进行了考察,得出了不同深度组别的瓦斯抽采量与时间的关系、瓦斯预抽率随时间的变化规律,通过分析不同长度定向水平长钻孔的抽采效果,确定了定向水平长钻孔的合理钻孔长度。
Gas disasters is the biggest threat to safe production in coal mine of our country and gas drainage is the fundamental measures against gas disasters and accidents.The gas drainage has controlled the gas outburst and the gas overrun, but there is not reasonable certain to pre- draining time,In order to solve this problem, according to the different drillhole pattern, confirming reasonable pre-draining time has important significance to improve gas drainage effect, avoid blind drainage, realize the high yield and efficiency. On the basis of taking samples,this paper has confirmed the marginal value of eliminating outburst about using the index to predict gas outburst in NO.3 seam of YameiDaning coalmine through laboratory simulation,and based on drillhole parameters, the relationship between quantity of drainage and time,the method of calculating practical pre-draining rate of Directional Level Long Drilling has been determined, on this basis, combining with the influence factors of pre-draining rate,the evaluation model of reasonable pre-draining time has been builded and the reasonable pre-draining time of Directional Level Long Drilling in coal face has been calculated, in the end,the paper probes into the reasonable drillhole parameters in coal face.
On the basis of analysising geological evolution and geological structure characteristics,the paper introduces the regional integrated measures to against outburst,and analyzes the feasibility which choices the bedding pre-draining as regional measures in the Daning coalmine. Combined with different drillhole parameter and quantity of drainage in different time,this paper investigates the drainage effect of Directional Level Long Drilling under points different deepness groups and obtains the relationship between pre-draining rate and time,.through the analysising the effect of different length of Directive Horizontal Long, confirms the reasonable length of the drillhole.
在分析亚美大宁煤矿地质演化史和地质构造特征的基础上,介绍了亚美大宁煤矿区域综合防突措施,分析了采用顺层钻孔预抽煤层瓦斯作为该矿区域消突措施区域的必要性及可行性。结合亚美大宁煤矿定向水平长钻孔的布孔参数、不同预抽时间下的瓦斯抽采量分不同深度组别(200m组、400m组、600m组)预抽钻孔对定向水平长钻孔预抽煤层瓦斯的抽放效果进行了考察,得出了不同深度组别的瓦斯抽采量与时间的关系、瓦斯预抽率随时间的变化规律,通过分析不同长度定向水平长钻孔的抽采效果,确定了定向水平长钻孔的合理钻孔长度。
Gas disasters is the biggest threat to safe production in coal mine of our country and gas drainage is the fundamental measures against gas disasters and accidents.The gas drainage has controlled the gas outburst and the gas overrun, but there is not reasonable certain to pre- draining time,In order to solve this problem, according to the different drillhole pattern, confirming reasonable pre-draining time has important significance to improve gas drainage effect, avoid blind drainage, realize the high yield and efficiency. On the basis of taking samples,this paper has confirmed the marginal value of eliminating outburst about using the index to predict gas outburst in NO.3 seam of YameiDaning coalmine through laboratory simulation,and based on drillhole parameters, the relationship between quantity of drainage and time,the method of calculating practical pre-draining rate of Directional Level Long Drilling has been determined, on this basis, combining with the influence factors of pre-draining rate,the evaluation model of reasonable pre-draining time has been builded and the reasonable pre-draining time of Directional Level Long Drilling in coal face has been calculated, in the end,the paper probes into the reasonable drillhole parameters in coal face.
On the basis of analysising geological evolution and geological structure characteristics,the paper introduces the regional integrated measures to against outburst,and analyzes the feasibility which choices the bedding pre-draining as regional measures in the Daning coalmine. Combined with different drillhole parameter and quantity of drainage in different time,this paper investigates the drainage effect of Directional Level Long Drilling under points different deepness groups and obtains the relationship between pre-draining rate and time,.through the analysising the effect of different length of Directive Horizontal Long, confirms the reasonable length of the drillhole.
引文
[1]王兆丰.空气、水和泥浆介质中煤的瓦斯解吸规律与应用研究[D].徐州:中国矿业大学,2001.
[2]国家安全生产监督管理局.国家安全生产科技发展规划-煤矿领域研究报告(2004-2010)[R].2003,12.
[3]国家煤矿安全监察局.2003-2005年度全国煤矿事故分析报告[R].
[4]国家安全生产监督管理总局政府网站,事故快报[EB/OL].http://media.chinasafety.gov.cn:8090/iSystem/shigumain.jsp.
[5]于不凡,王佑安.煤矿瓦斯灾害防治及利用技术手册[M].北京:煤炭工业出版社,2000.
[6]王兆丰,刘军.我国煤矿瓦斯抽放存在的问题及对策探讨[J],煤矿安全,2005,36(3):29-32.
[7]国家安全生产监督管理总局.防治煤与瓦斯突出规定[S],2009.
[8]刘新民.煤与瓦斯突出区域预测方法探讨[J].焦作工学院学报,1997,16(2):63-65.
[9]俞启香.矿井瓦斯防治[M].徐州:中国矿业大学.1992.
[10]华福明,胡千庭.用钻屑量和钻屑瓦斯解吸特征预测煤与瓦斯突出时的临界值确定方法的探讨[J].煤矿安全,2002(7):21-23.
[11]河南理工大学.山西亚美大宁能源有限公司3号煤层突出危险性预测及防突措施技术方案[R].2007.
[12] Zhao YaoJiang,Xie Shengrong.Gas drainage technique by 1000 m long and large diameter roof boreholes in high gas coal seam group.Meitan Xuebao.2009.
[13] Liu Zilong.Reducing CBM in yangquan coal field[J].WorldCoal,2001(3).
[14]张子敏.瓦斯地质学[M].江苏:中国矿业大学出版社.2009.
[15]林柏泉,张建国等.矿井瓦斯抽放理论与技术(第二版)[M].中国矿业大学出版社.2007.
[16] Joseph Cervik.Experience with methane control from horizontal boreholes[C].Proceeding of Second International Mine Ventilation Congress,Reno,Nevada,USA.1979.
[17] Thakur P C,Poundstone W N.Horizental drilling technology for advanced degasification[J].Mining Engineering,1980(6).
[18] Brunner D J,Schwoebel J J,Thomas S.A new direction [J].World Coa1.1999(3).
[19] Satyendra,PNandi and Philip Walker.Activated Diffusion of Methane from Coal at elevated pressure.Fuel,Vol.54,1975.
[20] J.N.Murphy.Mine safety:highlights of the 27th International Conference on Safety in Mines Research Institutes[J].Engineering & Mining Journal, 1998,199(5):0095-8948.
[21]马丕梁.我国煤矿抽放瓦斯现状及发展前景[J].煤矿安全.2007(3):48-51.
[22]王魁军,张兴华.中国煤矿瓦斯抽采技术发展现状与前景[J].中国煤层气.2006(1):13-16.
[23]王兆丰.平顶山矿区合理预抽期研究[R].抚顺:煤炭科学研究总院抚顺分院.1999.
[24]王兆丰,杨利平等.焦作矿区煤层瓦斯合理预抽期的研究[J].煤矿开采,2007,12(1):11-13.
[25]方前程,王兆丰等.鹤壁矿区煤层瓦斯合理预抽期的研究[J],煤炭科学技术,2007.35(80):89-91.
[26]李守国,梁丰廷等.马寨煤炭有限公司3#煤层瓦斯合理预抽期研究[J],煤矿安全,2009.(07).
[27]姜文忠,秦玉金.平顶山矿区煤层瓦斯合理预抽期的研究[J],煤矿安全,2001(12):8-10.
[28]江万刚,欧聪等.高地应力突出煤层平行钻孔预抽瓦斯[J],矿业安全与环保,2009.36(3):43-45.
[29]孛国良.井下水平长钻煤层气合理预抽时间预测[J],中国煤炭,2008.(4):67-70.
[30]欧阳广斌.近距离保护层开采瓦斯运移规律[J].煤炭科学技术.2008(9):50-52.
[31]秦子晗,潘俊锋等.薄煤层作为保护层开采的卸压机理[J].煤矿开采.2010(2):85-86.
[32]汪东生.近距离煤层群保护层开采瓦斯立体抽采防突机理与实验研究[M].北京:煤炭工业出版社.2010.
[33]赵晋红,杨钦等.钻孔抽放瓦斯的防突作用机理及其分析[J].能源技术与管理.2010(1):29-31.
[34]王兆丰,田富超.羽状千米长钻孔抽采效果考察试验[J].煤炭学报.2010(1):76-79.
[35]杜子健,刘子龙.煤矿井下顺煤层千米枝状长钻孔抽采瓦斯技术[J].矿业安全与环保.2007(1).
[36]李焕志.抚顺煤矿煤与瓦斯突出预测敏感指标及临界值的探讨[J].煤矿安全,1998,(8):25-27.
[37]华福明,王树玉.防治煤与瓦斯突出培训教材[M].徐州:中国矿业大学出版社.2005.
[38]中华人民共和国煤炭工业部.煤的坚固性系数测定方法(MT/49-87)[S].1987.
[39]刘明举,牟全斌等.煤层突出区域预测指标及临界值探讨[J].煤炭工程.2007(10):67-69.
[40] PRINZD,PYCKHOT-HINTZENW,LITTER.Development of the meso-and macro-porous structure of coals with rank as analyzed with small angle neutron scattering and adsorption experiments[J].Fuel.2004,83(4/5):547-556.
[41] CLARSON C R,BUSTIN B M.Binary gas adsorption/desorption isothrm:effect of moisture and coal composition upon carbon dioxide selectivity over methane[J].International Journal of Geology,2000,42(4):241-271.
[42] LAXMINARA C H,CROSDAE P J.Role of coal type and rank on methane sorption characteristics of Coal Geology,1999,40(4):309-325.
[43]张小东,张子戊.煤吸附瓦斯机理研究的新进展[J].中国矿业.2008(6).
[44] Bansal R C,Coyal M.Activated carbon adsorption[M].NewYork:CRC Press Taylor&Francis.2005:77-116.
[45] Choudary N V,Jasra R V,Bath S G T.An improved Langmuir approach for Prediction of binary gas mixture adsorption equilibria[J].Separation Science and Technology,1995,30(11):2337~2348.
[46]杨晓东,顾安忠.活性炭吸附的理论研究进展[J].炭素.2000,4:11-26.
[47]林柏泉,张建国.矿井瓦斯抽放理论与技术[M].中国矿业大学出版社.2007.
[48]辛新平.焦作矿区本煤层瓦斯抽放参数优化[J].煤矿安全.1998(9):7-10.
[49]张铁岗.矿井瓦斯综合治理技术[M].北京:煤炭工业出版社.2002.
[50]李建铭.煤与瓦斯突出防治技术手册[M].徐州:中国矿业大学出版社.2006.
[51]国家安全生产监督管理总局.煤矿瓦斯抽采基本指标(AQ-1026)[S].2006.
[52]国家安全生产监督管理总局.矿井瓦斯涌出量预测方法(AQ-1018)[S].2006.
[53]国家煤矿安全监察局.煤矿安全规程[S].2010.
[2]国家安全生产监督管理局.国家安全生产科技发展规划-煤矿领域研究报告(2004-2010)[R].2003,12.
[3]国家煤矿安全监察局.2003-2005年度全国煤矿事故分析报告[R].
[4]国家安全生产监督管理总局政府网站,事故快报[EB/OL].http://media.chinasafety.gov.cn:8090/iSystem/shigumain.jsp.
[5]于不凡,王佑安.煤矿瓦斯灾害防治及利用技术手册[M].北京:煤炭工业出版社,2000.
[6]王兆丰,刘军.我国煤矿瓦斯抽放存在的问题及对策探讨[J],煤矿安全,2005,36(3):29-32.
[7]国家安全生产监督管理总局.防治煤与瓦斯突出规定[S],2009.
[8]刘新民.煤与瓦斯突出区域预测方法探讨[J].焦作工学院学报,1997,16(2):63-65.
[9]俞启香.矿井瓦斯防治[M].徐州:中国矿业大学.1992.
[10]华福明,胡千庭.用钻屑量和钻屑瓦斯解吸特征预测煤与瓦斯突出时的临界值确定方法的探讨[J].煤矿安全,2002(7):21-23.
[11]河南理工大学.山西亚美大宁能源有限公司3号煤层突出危险性预测及防突措施技术方案[R].2007.
[12] Zhao YaoJiang,Xie Shengrong.Gas drainage technique by 1000 m long and large diameter roof boreholes in high gas coal seam group.Meitan Xuebao.2009.
[13] Liu Zilong.Reducing CBM in yangquan coal field[J].WorldCoal,2001(3).
[14]张子敏.瓦斯地质学[M].江苏:中国矿业大学出版社.2009.
[15]林柏泉,张建国等.矿井瓦斯抽放理论与技术(第二版)[M].中国矿业大学出版社.2007.
[16] Joseph Cervik.Experience with methane control from horizontal boreholes[C].Proceeding of Second International Mine Ventilation Congress,Reno,Nevada,USA.1979.
[17] Thakur P C,Poundstone W N.Horizental drilling technology for advanced degasification[J].Mining Engineering,1980(6).
[18] Brunner D J,Schwoebel J J,Thomas S.A new direction [J].World Coa1.1999(3).
[19] Satyendra,PNandi and Philip Walker.Activated Diffusion of Methane from Coal at elevated pressure.Fuel,Vol.54,1975.
[20] J.N.Murphy.Mine safety:highlights of the 27th International Conference on Safety in Mines Research Institutes[J].Engineering & Mining Journal, 1998,199(5):0095-8948.
[21]马丕梁.我国煤矿抽放瓦斯现状及发展前景[J].煤矿安全.2007(3):48-51.
[22]王魁军,张兴华.中国煤矿瓦斯抽采技术发展现状与前景[J].中国煤层气.2006(1):13-16.
[23]王兆丰.平顶山矿区合理预抽期研究[R].抚顺:煤炭科学研究总院抚顺分院.1999.
[24]王兆丰,杨利平等.焦作矿区煤层瓦斯合理预抽期的研究[J].煤矿开采,2007,12(1):11-13.
[25]方前程,王兆丰等.鹤壁矿区煤层瓦斯合理预抽期的研究[J],煤炭科学技术,2007.35(80):89-91.
[26]李守国,梁丰廷等.马寨煤炭有限公司3#煤层瓦斯合理预抽期研究[J],煤矿安全,2009.(07).
[27]姜文忠,秦玉金.平顶山矿区煤层瓦斯合理预抽期的研究[J],煤矿安全,2001(12):8-10.
[28]江万刚,欧聪等.高地应力突出煤层平行钻孔预抽瓦斯[J],矿业安全与环保,2009.36(3):43-45.
[29]孛国良.井下水平长钻煤层气合理预抽时间预测[J],中国煤炭,2008.(4):67-70.
[30]欧阳广斌.近距离保护层开采瓦斯运移规律[J].煤炭科学技术.2008(9):50-52.
[31]秦子晗,潘俊锋等.薄煤层作为保护层开采的卸压机理[J].煤矿开采.2010(2):85-86.
[32]汪东生.近距离煤层群保护层开采瓦斯立体抽采防突机理与实验研究[M].北京:煤炭工业出版社.2010.
[33]赵晋红,杨钦等.钻孔抽放瓦斯的防突作用机理及其分析[J].能源技术与管理.2010(1):29-31.
[34]王兆丰,田富超.羽状千米长钻孔抽采效果考察试验[J].煤炭学报.2010(1):76-79.
[35]杜子健,刘子龙.煤矿井下顺煤层千米枝状长钻孔抽采瓦斯技术[J].矿业安全与环保.2007(1).
[36]李焕志.抚顺煤矿煤与瓦斯突出预测敏感指标及临界值的探讨[J].煤矿安全,1998,(8):25-27.
[37]华福明,王树玉.防治煤与瓦斯突出培训教材[M].徐州:中国矿业大学出版社.2005.
[38]中华人民共和国煤炭工业部.煤的坚固性系数测定方法(MT/49-87)[S].1987.
[39]刘明举,牟全斌等.煤层突出区域预测指标及临界值探讨[J].煤炭工程.2007(10):67-69.
[40] PRINZD,PYCKHOT-HINTZENW,LITTER.Development of the meso-and macro-porous structure of coals with rank as analyzed with small angle neutron scattering and adsorption experiments[J].Fuel.2004,83(4/5):547-556.
[41] CLARSON C R,BUSTIN B M.Binary gas adsorption/desorption isothrm:effect of moisture and coal composition upon carbon dioxide selectivity over methane[J].International Journal of Geology,2000,42(4):241-271.
[42] LAXMINARA C H,CROSDAE P J.Role of coal type and rank on methane sorption characteristics of Coal Geology,1999,40(4):309-325.
[43]张小东,张子戊.煤吸附瓦斯机理研究的新进展[J].中国矿业.2008(6).
[44] Bansal R C,Coyal M.Activated carbon adsorption[M].NewYork:CRC Press Taylor&Francis.2005:77-116.
[45] Choudary N V,Jasra R V,Bath S G T.An improved Langmuir approach for Prediction of binary gas mixture adsorption equilibria[J].Separation Science and Technology,1995,30(11):2337~2348.
[46]杨晓东,顾安忠.活性炭吸附的理论研究进展[J].炭素.2000,4:11-26.
[47]林柏泉,张建国.矿井瓦斯抽放理论与技术[M].中国矿业大学出版社.2007.
[48]辛新平.焦作矿区本煤层瓦斯抽放参数优化[J].煤矿安全.1998(9):7-10.
[49]张铁岗.矿井瓦斯综合治理技术[M].北京:煤炭工业出版社.2002.
[50]李建铭.煤与瓦斯突出防治技术手册[M].徐州:中国矿业大学出版社.2006.
[51]国家安全生产监督管理总局.煤矿瓦斯抽采基本指标(AQ-1026)[S].2006.
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