摘要
提高地面地震资料分辨能力一直是地球物理工作者的追求目标。笔者提出在井间地震与地面地震之间计算匹配算子,在此基础上得到地面地震所有位置处的匹配算子,把匹配算子作用到地面地震资料中获得匹配数据体,对匹配数据进行地震信号脉冲化建立约束模型,最后采用宽带反演思路完成提高地面地震资料分辨率的处理。模型资料和实际资料的处理试验表明,此方法可以有效地改善地面地震资料的分辨率,能够提高地面地震的地质分辨能力。
The improvement of the surface seismic resolution is the aim of every geophysicist.This paper presents a new method by combining surface seism with crosswell seism.First,the matching operators are computed between the crosswell and the surface seismic data.Then,according to their correlation and distance,the 3D spatial operators are obtained.Third,the operators are applied to surface seismic data,and the 3D matched data are established.After that,a constrained model is set up by signal spiking.Finally,the broadband-constrained inversion is employed to complete the processing.Tests on synthetic data and field data show that this technology can improve vertical resolution of surface seismic data.
出处
《物探与化探》
CAS
CSCD
北大核心
2010年第3期353-357,共5页
Geophysical and Geochemical Exploration
基金
国家863重点项目子课题(2007AA060504)资助
关键词
井间地震
地面地震
脉冲化
匹配算子
宽带约束反演
crosswell seism
surface seism
spiking
matching operator
broadband-constrained inversion
