论文部分内容阅读
前言地震地层学(Seismic stratigraphy)这个名词,自 AAPG Memoir 26(1977)出版以来,成了非常流行的词汇了。作为这本出版物中的曲型论文之一,是由 Sangree 和 Widmier 所撰写的。这篇论文的修订版还发表在 Geophysics(1979)上。在这篇论文中提出的地震地层学的概念,就是综合性地根据反射地震记录的振幅、频率、连续性等进行模式分类,从而解释地层的沉积状况和岩性的变化。当然此时最好能将已有的钻井中的密度测井和声波测井所做的合成地震记录与反射波进行对比标定。这样的对比比例愈高,则解释的精度愈高。
Preface Seismic stratigraphy has become a very popular term since the publication of AAPG Memoir 26 (1977). One of the curvilarized papers in this publication was written by Sangree and Widmier. A revised version of this paper is also published in Geophysics (1979). The concept of seismic stratigraphy proposed in this paper is to classify the patterns according to the amplitude, frequency and continuity of reflected seismic records synthetically, so as to explain the sedimentary conditions and lithology changes of strata. Of course, at this time, it is best to compare the synthetic seismograms and reflected waves made by density logging and sonic logging in existing drilling wells. The higher the contrast ratio, the higher the accuracy of interpretation.