北京大学学报（自然科学版）2025，Vol.61Issue(1)：77-85,9.DOI:10.13209/j.0479-8023.2024.101
无拉伸畸变的三阶累积量动校正方法研究
Third-Order Cumulant to Perform Normal Moveout without Stretching Distortions
摘要
Abstract
Traditional normal moveout(NMO)method not only suffers from severe stretching distortion on shallow and far offset traces,but also is particularly sensitive to NMO velocity.Based on the latest reflection seismic inter-ferometry,this paper introduces the third-order cumulant in NMO process to solve above-mentioned issues.The method expands the application scope and is a more universal expression of traditional seismic interferometry in theory.This article first provides a rigorous theoretical derivation,then tests and verifies its noise resistance using model data,and finally applies it to field data in western China.The results show that the proposed method solves the problem of stretching distortions in far offset gathers without the need of correction velocity,and has better noise suppression effect compared with other two methods.关键词
三阶累积量/动校正(NMO)/拉伸畸变/地震干涉Key words
third-order cumulant/NMO/stretching distortion/seismic interferometry引用本文复制引用
梁上林,王春明,李彦民,张征,胡天跃,崔栋,侯思安,阎艺璇,胡莲莲..无拉伸畸变的三阶累积量动校正方法研究[J].北京大学学报（自然科学版）,2025,61(1):77-85,9.基金项目
中国石油集团公司基础性前瞻性科技专项(2024ZZ5504)和中国石油-北京大学战略合作基础研究项目资助 （2024ZZ5504）
