物探化探计算技术2018，Vol.40Issue(2)：141-149,9.DOI:10.3969/j.issn.1001-1749.2018.02.01
井间地震高斯束叠前深度偏移成像方法
The study of cross-well seismic Gaussian beam pre-stack migration imaging in depth domain
摘要
Abstract
Cross-well seismic imaging technology has high imaging accuracy in solving complex structures and reservoir description.The Gaussian beam migration imaging method not only has the flexibility of Kirchhoff integral migration,but also has the accuracy of wave equation migration.Therefore,this method has a fast calculation speed and high accuracy.Based on the study of pre-stack depth migration imaging of ground seismic Gaussian beam,this method is first applied to cross-well seismic imaging in this article.In the aspects of cross-well theoretical model trial calculation,compared with the cross-well seismic wave equation reverse time migration method,the method of cross-well seismic Gaussian beam pre-stack depth mi-gration has accurate imaging results and high computational efficiency.In addition,this method is applied to the imaging of cross-well seismic data of an offshore oilfield.The results show that this method has a higher resolution than the offshore 3D seismic section,thus solving the problem of the offshore 3D seismic insufficient resolution.Therefore,this method can provide favorable basis for the micro-structure identification of the target layer of oil and gas fields and has a good application pros-pect.关键词
井间地震/高斯射线束/叠前偏移/成像Key words
cross-well seismic/Gaussian beam/pre-stack migration/imaging分类
天文与地球科学引用本文复制引用
俞岱,杨飞龙,孙渊,边瑞峰,王颖..井间地震高斯束叠前深度偏移成像方法[J].物探化探计算技术,2018,40(2):141-149,9.基金项目
国家科技重大专项(20112x05024-001-03) （20112x05024-001-03）
