CAJ | 학술논문

南海北部深水区白云凹陷海底地质构造复杂、速度变化剧烈，各向异性现象普遍存在，多次波极为发育，地震成像难度大。为了更好地提高该深水区地震资料的成像质量，笔者引入了基于各向异性介质的叠前地震资料处理技术，并将其应用到深水白云61工区。该技术系列主要由三维广义多次波衰减、各向异性速度分析和偏移成像等技术组成。深水资料应用结果表明：GSMP建立的多次波模型，能有效地压制多次波，使剖面更显著；基于各向异性的高密度速度分析可以更好地描述地质信息；剖面的断层能量在基于各向异性叠前时间偏移处理后得到聚焦，最终该技术系列提高了地震资料的成像质量。
남해북부심수구백운요함해저지질구조복잡、속도변화극렬，각향이성현상보편존재，다차파겁위발육，지진성상난도대。위료경호지제고해심수구지진자료적성상질량，필자인입료기우각향이성개질적첩전지진자료처리기술，병장기응용도심수백운61공구。해기술계렬주요유삼유엄의다차파쇠감、각향이성속도분석화편이성상등기술조성。심수자료응용결과표명：GSMP건립적다차파모형，능유효지압제다차파，사부면경현저；기우각향이성적고밀도속도분석가이경호지묘술지질신식；부면적단층능량재기우각향이성첩전시간편이처리후득도취초，최종해기술계렬제고료지진자료적성상질량。
In South China Sea, seismic data processing in this area is very difficult due to the complex geological structure,rapid speed variation,multiple wave and anisotropy in the region.In order to improve the quality of seismic data imaging in the deep water zone of Baiyun 6 1 working area,we introduced pre-stack seismic data processing technology series based on anisotropic media . The technology series is mainly composed of three-dimensional GSMP,anisotropic velocity field analysis and anisotropic time migration technology. The application results show that the multiple wave model established through GSMP can effectively suppress multiple wave and make the profile more significantly.Anisotropic velocity field analysis can better describe the geological information.Energy is focused on the fault of the section based on anisotropic time migration technology process.Eventually the technology series improves the image quality of seismic data.