石油物探2026，Vol.65Issue(2)：234-246,13.DOI:10.12431/issn.1000-1441.2025.0001
基于高频信号识别算子的多道反演吸收补偿
Multi-trace inversion for absorption compensation based on a high-frequency signal identification operator
摘要
Abstract
The reduction in seismic resolution caused by earth absorption,known as Q effect,is characterized by frequency-dependent amplitude attenuation and velocity dispersion.Inverse Q-filtering serves as a fundamental technique for attenuation compensation to enhance seismic resolution.However,high-frequency noises pose a trade-off for conventional methods as enhancing resolution inevitably degrades signal-to-noise ratio,thereby limiting their performance.To address this issue,we propose a multi-trace absorption compensation framework for the accurate stable recovery of seismic high-frequency components.A signal identification operator,expressed as a prediction error filter,is derived from attenuation data by leveraging the intrinsic mapping between low-frequency and high-frequency components.This operator captures inter-frequency dependencies and is integrated into the inversion objective function as a robust constraint for the precise recovery of high-frequency structures.Synthetic and field tests demonstrate the method's performance in achieving high-resolution seismic data with an improved signal-to-noise ratio.关键词
多道吸收补偿/高频恢复/信号识别/正则化Key words
multi-trace absorption compensation/high-frequency recovery/signal identification/regularization分类
能源科技引用本文复制引用
李泽林,谷巍巍,王者武,左黄金,李国发..基于高频信号识别算子的多道反演吸收补偿[J].石油物探,2026,65(2):234-246,13.基金项目
中国石油天然气集团有限公司物探重点实验室"十四五"基础研究项目(2022DQ0604-03)资助. This research is financially supported by the Fundamental Research Program in the 14th Five-Year Plan of CNPC Key Lab of Geophysical Exploration(Grant No.2022DQ0604-03). （2022DQ0604-03）
