神东矿区纳林河二号矿井延安组煤层顶板富水区规律
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摘要
纳林河矿区水文地质条件复杂多变,煤矿安全生产建设受隐蔽水患威胁严重。以纳林河二号矿井为例,采用地质分析、测试实验相结合的方法研究了3-1煤层顶板砂岩的岩石学特征,沉积作用、成岩作用、后生作用对水理学性质的影响,揭示矿井水患的地质控制规律。结果表明;沉积作用、成岩作用是富水性强弱的重要因素;后生作用形成的高角度微裂缝、小型褶皱及断层等对矿区富水性影响不大。纳林河矿井河道砂坝砂体的透水性好于三角洲平原分流河道与决口扇砂体,易形成富水性强的区域;同一古河流中,中下游及河床相砂体的富水性强,上游和边滩、漫滩砂体的孔渗条件差、透水性和富水性弱。
The Narin Gol No. 2 coalmine has complex and variable hydrogeological conditions. Safety production and construction of coalmine have been threatened seriously by shadowy flood. Taking this coalmine as example,through geological analysis combined with tests and experiments,studied impacts from coal No. 3-1 roof sandstone lithologic features,sedimentation,lithogenesis and epigenesis on hydrological properties,thus revealed coalmine flood geological control pattern. The result has shown that the sedimentation and lithogenesis are major factors to impact water yield property strong or weak. High-angle microfractures,minor folds and faults formed by epigenesis have only negligible effects on coalmine area water yield property. In the mine area,water perviousness of channel bar sand body is better than delta plain distributary channel and crevasse splay sand bodies,thus easy to form strong water yield property domain. In a same paleochannel,middle and lower reaches and bed phase sand bodies have strong water yield property; upper reaches and point bar,flood-plain sand bodies have poor porosity and permeability conditions,weak perviousness and water yield property.
The Narin Gol No. 2 coalmine has complex and variable hydrogeological conditions. Safety production and construction of coalmine have been threatened seriously by shadowy flood. Taking this coalmine as example,through geological analysis combined with tests and experiments,studied impacts from coal No. 3-1 roof sandstone lithologic features,sedimentation,lithogenesis and epigenesis on hydrological properties,thus revealed coalmine flood geological control pattern. The result has shown that the sedimentation and lithogenesis are major factors to impact water yield property strong or weak. High-angle microfractures,minor folds and faults formed by epigenesis have only negligible effects on coalmine area water yield property. In the mine area,water perviousness of channel bar sand body is better than delta plain distributary channel and crevasse splay sand bodies,thus easy to form strong water yield property domain. In a same paleochannel,middle and lower reaches and bed phase sand bodies have strong water yield property; upper reaches and point bar,flood-plain sand bodies have poor porosity and permeability conditions,weak perviousness and water yield property.
引文
[1]石磊.蒙陕接壤区纳林河二号矿井首采工作面顶板富水性探查[J].中国煤炭地质,2014,(10):49-52.
[2]杨建.纳林河二号煤矿延安组地下水化学特征[J].矿业研究与开发,2013,(4):109-113.
[3]穆鹏飞,朱开鹏,牟林.黄陇侏罗纪煤田洛河组砂岩富水规律[J].中国煤炭地质,2015,27(5):42-45.
[4]赵宝峰.基于含水层沉积和构造特征的富水性分区[J].中国煤炭地质,2015,27(4):30-34.
[5]李明辉,王剑,谢渊,等.鄂尔多斯盆地白垩纪岩相古地理与地下水相关性探讨[J].沉积与特提斯地质,2003,23(4):34-40.
[6]谢渊,王剑,殷跃平,等.鄂尔多斯盆地白垩系含水层沉积学初探[J].地质通报,2003,22(10):818-828.
[7]谢渊,王剑,江新胜,等.鄂尔多斯盆地白垩系沙漠相沉积特征及其水文地质意义[J].沉积学报,2005,23(1):73-83.
[8]王祯伟.论淮北新矿区新生界底部含水层的沉积环境[J].煤炭学报,1990,15(2):87-96.
[9]许光泉,沈慧珍,魏振岱,等.宿南矿区“四含”沉积相与富水性关系研究[J].安徽理工大学学报(自然科学版),2005,25(4):4-8.
[10]张金亮,张鹏辉,谢俊,等.碎屑岩储集层成岩作用研究进展与展望[J].地球科学进展,2013,(09):957-967.
[11]钟大康,祝海华,孙海涛,等.鄂尔多斯盆地陇东地区延长组砂岩成岩作用及孔隙演化[J].地学前缘,2013,(2):61-68.
[12]刘小洪.鄂尔多斯盆地上古生界砂岩储层的成岩作用研究与孔隙成岩演化分析[D].西安:西北大学,2008.
[13]朱春俊.低孔低渗砂岩储层成因及控制因素研究[D].中国矿业大学(北京),2010.
[14]李群.陆相低渗透储层精细描述[D].长沙:中南大学,2008.
[15]武强,王洋,赵德康,等.基于沉积特征的松散含水层富水性评价方法与应用[J].中国矿业大学学报,2017,(3):460-466.
[16]杜伟.鄂尔多斯盆地大牛地气田山西组层序地层、沉积相与储层研究[D].中国地质大学(北京),2013.
[17]吕岩.吉林省东部地区沼泽草炭土的结构特性及模型研究[D].长春:吉林大学,2012.
[18]陈晨,贾建称,董夔,等.改进的AHP法在煤层顶板砂岩富水性评价中的应用[J].中国煤炭地质,2017,29(07):40-45.
[19]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[20]胡海涛,许贵森.论构造体系与地下水网络[J].水文地质工程地质,1980,(3):1-7.
[21]王学栋,栾诚,刘冰.褶皱富水构造的成生机制与地下水赋集的内在联系[J].地下水,2012,34(4):46-47.
[22]李德荣,杨书安.试论不同力学性质的断裂构造的富水部位及富水性[J].地质科学,1975,(3):220-229.
[2]杨建.纳林河二号煤矿延安组地下水化学特征[J].矿业研究与开发,2013,(4):109-113.
[3]穆鹏飞,朱开鹏,牟林.黄陇侏罗纪煤田洛河组砂岩富水规律[J].中国煤炭地质,2015,27(5):42-45.
[4]赵宝峰.基于含水层沉积和构造特征的富水性分区[J].中国煤炭地质,2015,27(4):30-34.
[5]李明辉,王剑,谢渊,等.鄂尔多斯盆地白垩纪岩相古地理与地下水相关性探讨[J].沉积与特提斯地质,2003,23(4):34-40.
[6]谢渊,王剑,殷跃平,等.鄂尔多斯盆地白垩系含水层沉积学初探[J].地质通报,2003,22(10):818-828.
[7]谢渊,王剑,江新胜,等.鄂尔多斯盆地白垩系沙漠相沉积特征及其水文地质意义[J].沉积学报,2005,23(1):73-83.
[8]王祯伟.论淮北新矿区新生界底部含水层的沉积环境[J].煤炭学报,1990,15(2):87-96.
[9]许光泉,沈慧珍,魏振岱,等.宿南矿区“四含”沉积相与富水性关系研究[J].安徽理工大学学报(自然科学版),2005,25(4):4-8.
[10]张金亮,张鹏辉,谢俊,等.碎屑岩储集层成岩作用研究进展与展望[J].地球科学进展,2013,(09):957-967.
[11]钟大康,祝海华,孙海涛,等.鄂尔多斯盆地陇东地区延长组砂岩成岩作用及孔隙演化[J].地学前缘,2013,(2):61-68.
[12]刘小洪.鄂尔多斯盆地上古生界砂岩储层的成岩作用研究与孔隙成岩演化分析[D].西安:西北大学,2008.
[13]朱春俊.低孔低渗砂岩储层成因及控制因素研究[D].中国矿业大学(北京),2010.
[14]李群.陆相低渗透储层精细描述[D].长沙:中南大学,2008.
[15]武强,王洋,赵德康,等.基于沉积特征的松散含水层富水性评价方法与应用[J].中国矿业大学学报,2017,(3):460-466.
[16]杜伟.鄂尔多斯盆地大牛地气田山西组层序地层、沉积相与储层研究[D].中国地质大学(北京),2013.
[17]吕岩.吉林省东部地区沼泽草炭土的结构特性及模型研究[D].长春:吉林大学,2012.
[18]陈晨,贾建称,董夔,等.改进的AHP法在煤层顶板砂岩富水性评价中的应用[J].中国煤炭地质,2017,29(07):40-45.
[19]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[20]胡海涛,许贵森.论构造体系与地下水网络[J].水文地质工程地质,1980,(3):1-7.
[21]王学栋,栾诚,刘冰.褶皱富水构造的成生机制与地下水赋集的内在联系[J].地下水,2012,34(4):46-47.
[22]李德荣,杨书安.试论不同力学性质的断裂构造的富水部位及富水性[J].地质科学,1975,(3):220-229.