海洋地质与第四纪地质2017，Vol.37Issue(1)：168-175,8.DOI:10.16562/j.cnki.0256-1492.2017.01.020
莺歌海盆地二维剖面高斯束高精度叠前深度偏移
HIGH PRECISION GAUSSIAN BEAM PRE-STACK DEPTH MIGRATION FOR YINGGEHAI BASIN 2D SEISMIC PROFILES
摘要
Abstract
A high-precision imaging method is critical to oil and gas exploration in the South China Sea.A high precision imaging method with Gaussian beam pre-stack depth migration is proposed in this paper.Marine seismic records are firstly processed with local slant stack,then ray tracing is made from the source to the receivers respectively.Gaussian beam superposition is used for imaging.Through programming and Gaussian beam migration testing based on the typical model of the Yinggehai basin in the South China Sea,we analyzed the local amplification and angle domain common imaging gathers (ADCIGs).Results show that the method can image the seabed with steep faults and rock mass accurately and verify its adaptability to the complex ocean model.关键词
高斯束偏移/角度域共成像点道集/陡倾角/莺歌海盆地Key words
Gaussian beam migration/ADCIGs/steep/Yinggehai Basin分类
天文与地球科学引用本文复制引用
张瑞,黄建平,崔超,王子颖..莺歌海盆地二维剖面高斯束高精度叠前深度偏移[J].海洋地质与第四纪地质,2017,37(1):168-175,8.基金项目
国家“973”课题(2014CB239006) （2014CB239006）
国家自然科学基会项目(41274124) （41274124）
国家油气重大专项课题(2016ZX05014001,2016ZX05002) （2016ZX05014001,2016ZX05002）
