鄂西—渝东地区地震深度构造图成图方法研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
分析了鄂西—渝东地区地震勘探中目前利用偏移剖面转换深度剖面,然后用深度剖面直接编制构造图的方法,指出其存在工作量大,在高陡构造陡带部位效果差,与钻井误差较大的缺点,以及速度谱资料变速成图方法不适合本工区的原因,提出利用分层平均速度曲线进行分区成图的方法。理论分析和应用实例表明:该方法具有效率高、成图误差小的优点。
This paper presents a method for seismic exploration in the Western Hubei-Eastern Chongqing Area,that is,a migrated profile is transformed into a depth section,which is directly used to structural mapping.But this method has some shortages,such as a large quantity of work,poor results in steep tilting positions of steep tilting structures,as well as great discrepancies from drilling.It is indicated that the velocity-variant mapping using velocity spectrum data is unfit for the study area,in stead,mapping using average velocity curves of horizons are of high-efficiency,with few errors,as indicated by theoretical analysis and case study.
引文
[1]胡光灿,谢姚祥.中国四川东部高陡构造石炭系气田[M].北京:石油工业出版社,1997:135-144.
    [2]杨庆道.空变速度模型的建立及在旺南构造中的应用[J].南方油气,2003(1):19-22.
    [3]钱绍瑚,刘江平.大面积变速绘制构造图中速度参数的求取方法[J].石油物探,1995(1):110-115.
    [4]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993:195-204.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心