东胜煤田阿不亥勘查区侏罗系主要煤层对比研究
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摘要
阿不亥勘查区位于东胜煤田东北部,区内主要含煤岩系为侏罗系中下统延安组,主要含5个煤组,含煤9~22层,平均15层。含煤地层岩性空间上变化频繁,给煤岩层对比研究工作带来很大难度。文章通过选取岩性组合对比法、标志层法、层间距法和测井曲线对比法并结合地震剖面成果,对区内煤层进行综合对比研究,共编号煤层18层。其中,可采煤层15层,不可采煤层3层,可采煤层中基本全区可采煤层3层(4-1、4-2中、6-2中),大部可采煤层9层(2-2上、2-2中、2-2下、3-1、3-2、4-2上、5-1、6-2上、6-2下),局部可采煤层3层(2-1、3-2下、6-1)。主要可采煤层(基本全区可采和全区大部可采)对比可靠程度相对较高,煤层结构简单,厚度变化较小,属于较稳定煤层。
Abuhai Exploration District is located in the northeast of Dongsheng Coalfield.In the study area,the mainly coal measures is Yan'an Formation of Lower-middle Jurassic,which include 5 coal-seam groups,9-22 seams and 15 seams on average.Lithology of coal-bearing strata changes frequently in space and this makes it great difficult in comparative study of coal seams.Through multiple methods of lithological combination,marker beds,interlayer spacing,correlation of logging curve and inversion profile of 2d earthqualce's survey,the authors compare and study the coal seams comprehensively.18 layers of coal are numbered,Among these coal seams there are 15 minable seams and 3 unworkable seams.In the minable seams,3 seams(4-1,4-2middle,and 6-2middle) are minable in all the region,9 seams(2-2upper,2-2middle,2-2lower,3-1、3-2、4-2upper,5-1,6-2upper,6-2lower) are the best minable seams,and 3 seams(2-1、3-2lower,6-1)are partially minable seams.The main minable seams are reliable in correlation,simple in texture,and stable in thickness.So,they can be identified as comparatively regular coal seams.
Abuhai Exploration District is located in the northeast of Dongsheng Coalfield.In the study area,the mainly coal measures is Yan'an Formation of Lower-middle Jurassic,which include 5 coal-seam groups,9-22 seams and 15 seams on average.Lithology of coal-bearing strata changes frequently in space and this makes it great difficult in comparative study of coal seams.Through multiple methods of lithological combination,marker beds,interlayer spacing,correlation of logging curve and inversion profile of 2d earthqualce's survey,the authors compare and study the coal seams comprehensively.18 layers of coal are numbered,Among these coal seams there are 15 minable seams and 3 unworkable seams.In the minable seams,3 seams(4-1,4-2middle,and 6-2middle) are minable in all the region,9 seams(2-2upper,2-2middle,2-2lower,3-1、3-2、4-2upper,5-1,6-2upper,6-2lower) are the best minable seams,and 3 seams(2-1、3-2lower,6-1)are partially minable seams.The main minable seams are reliable in correlation,simple in texture,and stable in thickness.So,they can be identified as comparatively regular coal seams.
引文
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1尹连朝,张国华,贾俊英,等.东胜煤田地质资料汇编.内蒙煤田地质勘探公司117队,1990.
2董福辰,聂浩刚,赵维宽,等.内蒙古自治区东胜煤田阿不亥勘查区煤炭普查报告.内蒙古第一地质矿产勘查开发院,中国地质调查局西安地质调查中心,2009.
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张泓,李恒堂,熊存卫等著.中国西北侏罗系含煤地层与聚煤规律[M].北京:地质出版社,1998.Zhang Hong,Li Hengtang,Xiong Cunwei,et al.TheJurassic Coal-bearing Strata and General Regularity ofCoal Accumulation in Northwest China[M].Geological Publishing House,Beijing,1998.
王洪亮,雷泓宴,张清盛.陕北神木地区早、中侏罗世含煤岩系层序地层特征[J].西北地质,2003,36(3)85-89.Wang Hongliang,Lei Hongyan,Zhang Qingsheng.Thestratigraphic order characteristics of coal-bearing stratain the Lower and Middle Jurassic in Shenmu area,North Shaanxi[J].Northwest Geology,2003,36(3):85-89.
常东,高占华,彭鸿鹄,等.测井曲线在准东煤田大井矿区一井田煤层对比中的应用[J].中国煤炭地质,2008,12(20):26-31.Chang Dong,Gao Zhanhua,Peng Honghu,et al.LoggingTrace Coal Seam Correlation in No.1Minefield,DajingMining Area,Eastern Junggar Coalfield[J].CoalGeology of China,2008,12(20):26-31.
翟斌.测井曲线是煤层对比的重要依据[J].内蒙古煤炭经济,2004,2:82-83.
1尹连朝,张国华,贾俊英,等.东胜煤田地质资料汇编.内蒙煤田地质勘探公司117队,1990.
2董福辰,聂浩刚,赵维宽,等.内蒙古自治区东胜煤田阿不亥勘查区煤炭普查报告.内蒙古第一地质矿产勘查开发院,中国地质调查局西安地质调查中心,2009.
王鸿祯.中国古地理图集[M].北京:地图出版社,1985.Wang Hongzhen.Atlas of the palaeogeography of china[M].Cartographic Publishing House,Beijing,1985.
何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003.He Zhixin.Evolution of the Ordos Basin and hydrocarbon[M].Petroleum Industry Press,Beijing,2003
陈守建,王永,伍跃中,等.西北地区煤炭资源及开发潜力[J].西北地质,2006,39(4):40-56.Chen Shoujian,Wang Yong,Wu Yuezhong,et al.CoalResources and Development Potential in North westChina[J].Northwest Geology,2006,39(4):40-56.
中国煤田地质总局著,王双明主编.鄂尔多斯盆地聚煤规律及煤炭资源评价[M].北京:煤炭工业出版社,1996.China National Administration of Coal Geology.CoalAccumulating and Coal Resource Evaluation of OrdosBasin[M].China Coal Industry Publishing House,Beijing,1996.
张泓,李恒堂,熊存卫等著.中国西北侏罗系含煤地层与聚煤规律[M].北京:地质出版社,1998.Zhang Hong,Li Hengtang,Xiong Cunwei,et al.TheJurassic Coal-bearing Strata and General Regularity ofCoal Accumulation in Northwest China[M].Geological Publishing House,Beijing,1998.
王洪亮,雷泓宴,张清盛.陕北神木地区早、中侏罗世含煤岩系层序地层特征[J].西北地质,2003,36(3)85-89.Wang Hongliang,Lei Hongyan,Zhang Qingsheng.Thestratigraphic order characteristics of coal-bearing stratain the Lower and Middle Jurassic in Shenmu area,North Shaanxi[J].Northwest Geology,2003,36(3):85-89.
常东,高占华,彭鸿鹄,等.测井曲线在准东煤田大井矿区一井田煤层对比中的应用[J].中国煤炭地质,2008,12(20):26-31.Chang Dong,Gao Zhanhua,Peng Honghu,et al.LoggingTrace Coal Seam Correlation in No.1Minefield,DajingMining Area,Eastern Junggar Coalfield[J].CoalGeology of China,2008,12(20):26-31.
翟斌.测井曲线是煤层对比的重要依据[J].内蒙古煤炭经济,2004,2:82-83.
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