煤田三维地震精细解释中叠加速度的应用
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- 英文论文题名：Application of Stacking Velocity in 3D Seismic Fine Interpretation in Mines
- 论文作者：刘美玲 ; 郭秀娟
- 英文论文作者：LIU Meiling ; GUO Xiujuan ; Shanxi Coal Geological Bureau ; Shanxi Department of Coal Industry
- 年：2016
- 作者机构：山西省煤炭工业厅煤炭资源地质局;
- 论文关键词：三维地震 ; 精细解释 ; 叠加速度
- 英文论文关键词：3D seismic ; fine interpretation ; stacking velocity
- 会议召开时间：2016-08-17
- 会议录名称：中国煤炭学会矿井地质专业委员会2016年学术论坛论文集
- 语种：中文
- 分类号：P631.4
- 学会代码：ZGMT
- 会议名称：中国煤炭学会矿井地质专业委员会2016年学术论坛
- 会议地点：中国山西太原
- 主办单位：中国煤炭学会矿井地质专业委员会
- 学会名称：中国煤炭学会
- 页数：3
- 文件大小：1118k
- 原文格式：O
- 会议级别：全国
摘要
为提高在煤田勘探区内钻孔较少、或钻孔多但分布不均匀地区的勘探精度,通过对叠加速度进行时深转换的理论研究,并在研究区分别利用钻孔处平均速度内插计算得到的底板等高线,和叠加速度与钻孔资料相结合求出的平均速度计算得到的底板等高线,在研究区不同地点有巷道揭露煤层底板标高的点,对这两种成图方法解释的底板标高精度进行了分析。结果表明:采用叠加速度成图技术与钻孔反算速度相结合的方法,求取的时深转化速度更符合地质规律,具有较强的适应性,提高了构造成图的解释精度。
In coal field exploration areas,there are limited drilling holes are limited or enough holes but uneven distribution.Time-depth conversion was studied by stacking velocity to increase the exploration precision.In the research area,mean velocity interpolation at the drilling holes was used to calculate the contour line of floor and the stacking velocity.With the marked points of coal seams revealing at the different locations,the precision interpretation of the floor by the two plotting methods is studied.The results show that,when calculating the time-depth conversion velocity,the method combining the plotting with the stacking velocity and back calculation of velocity with boreholes is more in accord with the geological laws with stronger adaptability,which increases the interpretation precision of the structural mapping.
In coal field exploration areas,there are limited drilling holes are limited or enough holes but uneven distribution.Time-depth conversion was studied by stacking velocity to increase the exploration precision.In the research area,mean velocity interpolation at the drilling holes was used to calculate the contour line of floor and the stacking velocity.With the marked points of coal seams revealing at the different locations,the precision interpretation of the floor by the two plotting methods is studied.The results show that,when calculating the time-depth conversion velocity,the method combining the plotting with the stacking velocity and back calculation of velocity with boreholes is more in accord with the geological laws with stronger adaptability,which increases the interpretation precision of the structural mapping.
引文
[1]龚幸林,林建东.煤田三维地震资料解释的时深转换方法研究[J].中国煤田地质,2002(6):65-67
[2]王磊,林建东.三维地震勘探中叠加速度成图[J].中国煤田地质,2000(6):57-59.
[3]陆基孟.地震勘探原理[M].东营:中国石油大学出版社,2006:215-216.
[4]左龙凭,李铁,刘丽.两种平均速度提取方法的比较与应用[J].新疆石油地质,2000(1):30-31.
[5]李明娟.地震速度谱在精细深度图制作中的应用[J].石油物探,2004(3):272-273.
[2]王磊,林建东.三维地震勘探中叠加速度成图[J].中国煤田地质,2000(6):57-59.
[3]陆基孟.地震勘探原理[M].东营:中国石油大学出版社,2006:215-216.
[4]左龙凭,李铁,刘丽.两种平均速度提取方法的比较与应用[J].新疆石油地质,2000(1):30-31.
[5]李明娟.地震速度谱在精细深度图制作中的应用[J].石油物探,2004(3):272-273.