二维地震勘探在睢县孙聚寨地区找煤中的应用
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摘要
在地震地质条件分析的基础上,进行野外实地试验和效果分析,结合以往的地质成果和邻区的地震勘查经验对睢县孙聚寨勘查区进行了二维地震勘查、数据处理和解释。结果表明:勘探区新生界覆盖层总体上东薄西厚且厚度变化很大(680～1080m);地震资料共解释A级断点两个,组合成正断层(DF1)一个;地震数据体显示二2煤层的T2反射波能量强、波形突出,连续性好,埋深总体上从东北往西南逐渐变深,受正断层DF1的影响,DF1断层以西二2煤层保存较好,面积约12.46km2,DF1断层以东地层抬升,二2煤层被剥蚀,极少被保存。
Based on analyzing seismic geological conditions,field testing and effectiveness evaluation,combining with previous geological results and adjacent areas seismic exploration experience,two-dimensional seismic exploration,data process and interpretation have been made in Sunjuzhai exploration zone of Sui County.The results show that the Cenozoic group covering layer is thinner in the east than in the west,and the thickness changes greatly from 680to 1080m.According to the seismic data,two A-level breakpoints have been explained,which constitutes one normal fault(DF1).T2reflection wave of the coal bed II 2has the characteristics with strong energy,clear waveform and good continuity.The coal bed II2is shallow in the northeast and becomes thicker and thicker during southwest extending.In the west of DF 1 normal fault,the coal bed II2has been kept well and the residual area is about 12.46km 2.Moreover,in the east of DF 1 normal fault,the coal bed II2remains less and most of which have been corroded.
Based on analyzing seismic geological conditions,field testing and effectiveness evaluation,combining with previous geological results and adjacent areas seismic exploration experience,two-dimensional seismic exploration,data process and interpretation have been made in Sunjuzhai exploration zone of Sui County.The results show that the Cenozoic group covering layer is thinner in the east than in the west,and the thickness changes greatly from 680to 1080m.According to the seismic data,two A-level breakpoints have been explained,which constitutes one normal fault(DF1).T2reflection wave of the coal bed II 2has the characteristics with strong energy,clear waveform and good continuity.The coal bed II2is shallow in the northeast and becomes thicker and thicker during southwest extending.In the west of DF 1 normal fault,the coal bed II2has been kept well and the residual area is about 12.46km 2.Moreover,in the east of DF 1 normal fault,the coal bed II2remains less and most of which have been corroded.
引文
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[3]张彦湘,罗振丽,张友林,等.地震勘探在多种地震地质条件共存区域内的应用——以山西同煤集团马道头井田二维、三维地震勘探为例[J].中国煤炭地质,2009,21(A02):79～83.
[4]李玉才.矿井深部二维地震普查施工研究[J].西部探矿工程,2012(6):183～186.
[5]乔文卿.二维地震在找煤中的应用[J].中国新技术新产品,2011(17):141～143.
[6]付俊清,孙治新,袁燕.二维地震勘探在洛阳找煤中的应用与效果[J].工程地球物理学报,2012,9(2):200～204.
[7]黄桂雄,张宝君.富县黄土塬区二维地震直测线施工方法及效果[J].西安石油大学学报(自然科学版),2008,23(4):15～18.
[8]束双伟,丁彦林,武磊彬.二维地震勘探在焦作煤田预查找煤中的应用与效果[J].西部探矿工程,2010,22(4):102～104.
[9]李录明,李正文.地震勘探原理、方法和解释[M].北京:地质出版社,2007.
[10]张玉芬.反射波地震勘探原理和资料解释[M].北京:地质出版社,2007.
[11]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993.
[12]杨忠习,刘海涛,刘文华.煤田地震勘探在高角度狭长地堑复杂地区资料采集处理解释效果分析[J].工程地球物理学报,2012,9(6):675～679.
[13]中华人民共和国煤炭行业标准.MT/T897-2000煤炭煤层气地震勘探规范[S].中煤网,2000.
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