砂砾岩体沉积期次划分方法研究——以东营凹陷北部陡坡带为例
|
摘要
本文利用井—震结合方法,单井上进行沉积旋回分析,将识别的层序界面标定到地震剖面上,实现大尺度沉积期次横向对比追踪,进而以其为控制,利用OpendTect软件中的层序地层解释系统,通过倾角导向中值滤波处理,数据驱动方式追踪及Wheeler域自动变换技术,实现砂砾岩扇体内小层的自动追踪与转换。通过正反旋回分析,将东营北带沙三下和沙四上段砂砾岩扇体精细划分为14个期次,该方法对用于井—震结合等其他方法难以进行地层精细划分和对比的砂砾岩发育区的沉积期次划分具有较好的应用前景。
Based on well-seismic combination and analysis of sedimentary cycle on a single well, the identified sequence interfaces are calibrated on the seismic section for the landscape correlation and trace of large-scale sedimentary stage. Then the sequence stratigraphic interpretation system of OpendTect software is applied by using the dip guiding median filtering processing, data driven mode tracing and Wheeler domain automatism transformation to finish automatism tracing and transformation of small layers in glutenite fan body. According to the analysis of positive and negative cycles, the glutenite fan body in S3 and S4 Members of the northern belt of Dongying is divided into 14 stages. The method is being recommended to be applied more widely in fine division of stratum and sedimentary stages than other well-seismic combination methods.
Based on well-seismic combination and analysis of sedimentary cycle on a single well, the identified sequence interfaces are calibrated on the seismic section for the landscape correlation and trace of large-scale sedimentary stage. Then the sequence stratigraphic interpretation system of OpendTect software is applied by using the dip guiding median filtering processing, data driven mode tracing and Wheeler domain automatism transformation to finish automatism tracing and transformation of small layers in glutenite fan body. According to the analysis of positive and negative cycles, the glutenite fan body in S3 and S4 Members of the northern belt of Dongying is divided into 14 stages. The method is being recommended to be applied more widely in fine division of stratum and sedimentary stages than other well-seismic combination methods.
引文
[1]赵澄林,刘孟慧,胡爱梅等.特殊油气储层.北京:石油工业出版社,1997:153～183
[2]李嵘.准噶尔盆地西北缘二叠系储层特征及分类.石油与天然气地质,2001,22(1):78～81
[3]雷振宇,卞德智,杜社宽等.准噶尔盆地西北缘扇体形成特征及油气分布规律.石油学报,2005,26(1):8～12
[4]李丕龙.陆相断陷盆地油气地质与勘探(卷二).北京:石油工业出版社,2003
[5]何玲娟,乔文龙,张明.典型逆掩断裂带油气富集规律与准噶尔盆地西北缘勘探思路.新疆地质,2003,21(3):321～324
[6]于建国.砂砾岩体的内部结构研究与含油性预测.石油地球物理勘探,1997,32(增1):15～20
[7]刘传虎,刘福贵,李卫忠.时频分析方法及在储层预测中的应用.石油地球物理勘探,1996,31(增1):11～20
[8]刘葵,刘招君,朱建伟等.时频分析在石油地球物理勘探中的应用.世界地质,2000,19(3):282～285
[2]李嵘.准噶尔盆地西北缘二叠系储层特征及分类.石油与天然气地质,2001,22(1):78～81
[3]雷振宇,卞德智,杜社宽等.准噶尔盆地西北缘扇体形成特征及油气分布规律.石油学报,2005,26(1):8～12
[4]李丕龙.陆相断陷盆地油气地质与勘探(卷二).北京:石油工业出版社,2003
[5]何玲娟,乔文龙,张明.典型逆掩断裂带油气富集规律与准噶尔盆地西北缘勘探思路.新疆地质,2003,21(3):321～324
[6]于建国.砂砾岩体的内部结构研究与含油性预测.石油地球物理勘探,1997,32(增1):15～20
[7]刘传虎,刘福贵,李卫忠.时频分析方法及在储层预测中的应用.石油地球物理勘探,1996,31(增1):11～20
[8]刘葵,刘招君,朱建伟等.时频分析在石油地球物理勘探中的应用.世界地质,2000,19(3):282～285
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