综合勘探技术在曹家滩井田煤炭勘查中的应用
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摘要
采用地震、钻探为主要手段的综合勘探方法,使煤田地质勘探的钻探基本网度放大1倍,而控制程度明显提高,钻探基本网度由750 m×750 m放大到1500 m×1 500 m,钻孔之间利用地震时间剖面控制,综合网度远小于等于750 m×750 m,地震技术在曹家滩井田勘探经钻孔资料验证,证明该方法对煤厚、煤层埋藏深度、赋存状况等的解释精度很高,地质效果显著。综合勘探技术明显突破,勘探网度的创新,大幅度地减少了成本高的钻探工程量,提高了勘探效率和精度。
The integrated exploration methods with seismic way and drilling can double the drilling degree in coal geological exploration,meanwhile the control level is markedly improved.The basic drilling net degree is improved from 750 m×750 m to 1 500 m×1 500 m.The profile control in seismic time between drillings,the integrated net degree is far less than or equal to 750 m×750 m.The seismic exploration technology in the Caojiatan coal field proved that the method can show high accurate information on coal thickness,coal seam depth,occurrence condition with an obvious geological result. Hence,the significant breakthrough on comprehensive exploration technology,the innovation of exploration net degree can dramatically reduce high-cost drilling projects and improve exploration efficiency and accuracy.
The integrated exploration methods with seismic way and drilling can double the drilling degree in coal geological exploration,meanwhile the control level is markedly improved.The basic drilling net degree is improved from 750 m×750 m to 1 500 m×1 500 m.The profile control in seismic time between drillings,the integrated net degree is far less than or equal to 750 m×750 m.The seismic exploration technology in the Caojiatan coal field proved that the method can show high accurate information on coal thickness,coal seam depth,occurrence condition with an obvious geological result. Hence,the significant breakthrough on comprehensive exploration technology,the innovation of exploration net degree can dramatically reduce high-cost drilling projects and improve exploration efficiency and accuracy.
引文
[1]王双明,范立民,王国柱,等.沙漠煤田综合勘探技术及陕北榆神矿区勘查与评价[C=//中国地质学会编:“十五”重要地质科技成果暨重大找矿成果交流会,2006.
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[6]王双明.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.
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[2]范立民.高产高效煤矿建设的地质保障技术[M].北京:地质出版社,2009.
[3]范立民,杨宏科.神府矿区浅部煤层的赋存特征与影响因素[J].煤田地质与勘探,1999,27(3).
[4]王双明,范立民,王国柱.沙漠煤田综合勘探技术在榆神府矿区的应用[J].煤炭工程,2007(1):37-39.
[5]范立民,蒋泽泉.榆神矿区资源赋存特征与保水采煤研究[J].西部探矿工程,2003,15(1):73-74.
[6]王双明.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.
[7]范立民,王双明,刘社虎,等.榆神矿区矿井涌水量特征及影响因素[J].西安科技大学学报,2009,29(1):7-11.
[8]范立民.浅论煤炭地质勘查报告的质量问题[J].中国煤炭地质,2008,20(9):25-27.
[9]曹新领;张奋轩.沙漠丘陵地区地震采集方法探索[J].陕西煤炭,2008,27(2):17-20.
[10]陈立明,曹新领.沙漠区煤层及构造的地震勘探与解释[J=,陕西煤炭,2007,26(6):36-38.
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