摘要
勘探过程中部分岩性目标跨多个采集工区,由于不同工区检波器类型、观测系统、处理流程和偏移速度的不同,不同工区地震资料存在明显的差异.传统叠后地震资料拼接方法仅消除不同工区间频率、相位、振幅的差异,而忽略浅中深不同层位间的对应关系,因此创新性提出一种基于动态时间规整算法的三维叠后地震资料拼接方法,利用递推规划算法综合计算不同工区地震道的振幅、相位、频率等距离参数特征,确定两者之间的对应关系,得到地震资料匹配的校正量,实现资料的拼接.模型数据测试和渤海地区地震资料应用的结果均表明,基于动态时间规整算法的三维叠后地震资料拼接方法能够有效实现地震资料的拼接.
During the exploration process,some lithologic targets span multiple acquisition work areas.Due to the different geophone types,observation systems,processing flow and migration velocities in different work areas,there are obvious differences in seismic data in different work areas.The traditional post stack seismic data splicing method only eliminates the differences of frequency,phase and amplitude between different work areas,and ignores the corresponding relationship between different layers in shallow,medium and deep.Therefore,an innovative 3D post stack seismic data splicing method based on dynamic time warping algorithm is proposed,which uses recursive programming algorithm to comprehensively calculate the amplitude,phase,frequency and other distance parameter characteristics of seismic traces in different work areas,and determine the corresponding relationship between them,Get the correction amount of seismic data matching,and realize data splicing.The results of model data testing and seismic data application in Bohai Sea area show that the 3D post stack seismic data splicing method based on dynamic time warping algorithm can effectively realize the splicing of seismic data.
作者
马振
徐德奎
丁洪波
张金辉
MA Zhen;XU DeKui;DING HongBo;ZHANG JinHui(CNOOC Ltd.Tianjin Branch,Tianjin 300450,China)
出处
《地球物理学进展》
CSCD
北大核心
2023年第5期2312-2325,共14页
Progress in Geophysics
基金
国家自然科学基金项目(91958206)资助。
关键词
动态时间规整
资料匹配
拼接处理
匹配滤波
振幅校正
Dynamic time warping
Data matching
Splicing processing
Matched filtering
Amplitude correction
