综合勘探技术在曹家滩井田煤炭勘查中的应用

Application of the Integrated Exploration Technology in Survey of Caojiatan Coal Field

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.