吉新煤矿三维地震勘探层位标定与时-深转换方法
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摘要
针对一些特殊矿区因钻孔数量稀少、不能实现三维地震资料有效解释的情况,利用地质模型的正演模拟,提出一种地震反射波地质层位涵义标定方法及时-深转换方法,预测吉新煤矿煤层底板深度。钻探与巷道资料验证结果表明,6#煤层的底板深度为489 m,与文中方法预测结果吻合;正演模拟技术能够正确指导地质层位标定,叠加速度体的充分利用有效提高了底板标高精度。
Aimed at overcoming the failure to interpret 3D seismic data effectively due to fewer boreholes in some special fields,this paper,based on the simulation of geological model,proposes the calibration method for corresponding geological layer meaning with the seismic reflection and time-depth conversion and the prediction of coal floor depth of Jixin coal mine.The real drilling and roadway data verify that 6# coal floor is 489 m deep,consistent with the prediction results produced by the proposed way.The forward simulation technique allows the correct calibration for geological horizon and the full utilization of staking velocity volume enables an effectively improved interpretation precision of coal floor depth.
Aimed at overcoming the failure to interpret 3D seismic data effectively due to fewer boreholes in some special fields,this paper,based on the simulation of geological model,proposes the calibration method for corresponding geological layer meaning with the seismic reflection and time-depth conversion and the prediction of coal floor depth of Jixin coal mine.The real drilling and roadway data verify that 6# coal floor is 489 m deep,consistent with the prediction results produced by the proposed way.The forward simulation technique allows the correct calibration for geological horizon and the full utilization of staking velocity volume enables an effectively improved interpretation precision of coal floor depth.
引文
[1]赵镨,杨艳珍,艾劲松.煤炭三维地震勘探时-深转换误差分析及对策[J].中国煤田地质,2006,18(4):49-52.
[2]黄兆辉,底青云,唐必锐,等.速度控制点法在川东高陡构造时-深转换中的应用[J].地球物理学进展,2008,23(3):717-721.
[3]左龙凭,李铁,刘丽.两种平均速度提取方法的比较及应用[J].新疆石油地质,2000,21(1):30-33.
[4]马海珍,雍学善,杨午阳,等.地震速度场建立与变速构造成图的一种方法[J].石油地球物理勘探,2002,37(1):53-59.
[5]梁顺军,张晓斌,肖军,等.地震解释井位跟踪分析[J].石油地球物理勘探,2012,47(2):315-322.
[6]梁顺军,肖宇,杨晓,等.库车拗陷盐相关构造建模新进展[J].中国石油勘探,2010,15(6):10-20.
[7]陈守田,王建民,刘杰烈,等.海拉尔盆地岩性地震勘探资料解释技术[J].天然气工业,2007(Z1):33-37.
[8]杨举勇,徐峰,施海峰.塔里木山地地震测线部署与采集参数设计原则[J].石油地球物理勘探,2003,38(3):221-225.
[9]白振瑞,张亚雄,宋建平,等.地震综合解释技术在尼日尔三角洲盆地STUBB CREEK区块中的应用[J].石油地质与工程,2012,34(1):45-59.
[2]黄兆辉,底青云,唐必锐,等.速度控制点法在川东高陡构造时-深转换中的应用[J].地球物理学进展,2008,23(3):717-721.
[3]左龙凭,李铁,刘丽.两种平均速度提取方法的比较及应用[J].新疆石油地质,2000,21(1):30-33.
[4]马海珍,雍学善,杨午阳,等.地震速度场建立与变速构造成图的一种方法[J].石油地球物理勘探,2002,37(1):53-59.
[5]梁顺军,张晓斌,肖军,等.地震解释井位跟踪分析[J].石油地球物理勘探,2012,47(2):315-322.
[6]梁顺军,肖宇,杨晓,等.库车拗陷盐相关构造建模新进展[J].中国石油勘探,2010,15(6):10-20.
[7]陈守田,王建民,刘杰烈,等.海拉尔盆地岩性地震勘探资料解释技术[J].天然气工业,2007(Z1):33-37.
[8]杨举勇,徐峰,施海峰.塔里木山地地震测线部署与采集参数设计原则[J].石油地球物理勘探,2003,38(3):221-225.
[9]白振瑞,张亚雄,宋建平,等.地震综合解释技术在尼日尔三角洲盆地STUBB CREEK区块中的应用[J].石油地质与工程,2012,34(1):45-59.
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