煤田地质与勘探2019，Vol.47Issue(1)：181-186,6.DOI:10.3969/j.issn.1001-1986.2019.01.028
起伏地表条件下的弹性波叠前逆时偏移
Elastic wave prestack reverse time migration on undulating surface
摘要
Abstract
At present, seismic exploration is facing many challenges in the "double complex" area, especially the undulating surface make it difficult to accurately image the underground complex structures. In this paper, we have studied the elastic wave prestack reverse time migration method for undulating surface, and a simple and effective treatment method was adopted to solve the free boundary conditions of undulating surface. In addition, the storage strategy of the effective boundary was used to solve the problem of big storage of elastic wave prestack reverse time migration. The numerical experimental results also show that this method can accurately reconstruct the source wave field. Finally, test of SEG Canadian overthrust fault model for undulating surface has further verified the effectiveness of the method proposed in this paper.关键词
起伏地表/弹性波/逆时偏移/边界存储策略/复杂构造精细成像Key words
undulating surfce/elastic wave/reverse time migration/strategy of boundary storage/fine imaging of complicated structure分类
天文与地球科学引用本文复制引用
刘阳,赵虎,尹成,武泗海,代荣获,邸志欣..起伏地表条件下的弹性波叠前逆时偏移[J].煤田地质与勘探,2019,47(1):181-186,6.基金项目
国家科技重大专项课题(2016ZX05024-001) （2016ZX05024-001）
中国石油化工集团公司科技攻关项目(JP17039,JP17037) （JP17039,JP17037）
