| 基于两步弥散算子的共反射面元射线束成像方法研究 |
| |
| 引用本文： | 陈宝书,杨锴,汪小将.基于两步弥散算子的共反射面元射线束成像方法研究[J].地球物理学报,2020,63(1):270-286. |
| |
| 作者姓名： | 陈宝书 杨锴 汪小将 |
| |
| 作者单位： | 1. 中海油研究总院有限责任公司, 北京 100027;2. 同济大学海洋地质国家重点实验室, 上海 200092 |
| |
| 基金项目： | 国家自然科学基金面上项目（41630964，41574098，41874118）和国家科技重大专项课题（2016ZX05026-001-003）联合资助. |
| |
| 摘 要： | 基于克希霍夫统一成像理论,对共反射面元射线束成像方法进行了深入分析.通过这种分析可以得到一种新的共反射面元射线束类成像实现方式:基于两步弥散算子的共反射面元射线束类成像方法.当仅实施第一步弥散时,即可获得信噪比大幅提高同时更为规则的叠前道集.二维、三维的理论和实际数据算例证实了上述观点.
|
| 关 键 词： | CRS射线束成像方法 克希霍夫统一成像理论 两步弥散算子 |
| 收稿时间： | 2018-07-20 |
The CRS-BEAM-PSDM based on two-step-smearing operator |
| |
| CHEN BaoShu,YANG Kai,WANG XiaoJiang.The CRS-BEAM-PSDM based on two-step-smearing operator[J].Chinese Journal of Geophysics,2020,63(1):270-286. |
| |
| Authors: | CHEN BaoShu YANG Kai WANG XiaoJiang |
| |
| Institution: | 1. CNOOC Research Institute Company Limited, Beijing 100027, China;2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
| |
| Abstract: | Based on the unified Kirchhoff imaging theory, we provide a deep analysis about the Common-Reflection-Surface (CRS) Beam Prestack Depth Migration (PSDM). With such an analysis, a novel two-step-smearing operator based CRS-beam PSDM method is presented. For this algorithm, when only the first smearing is implemented, a signal/noise ratio enhanced and a more regularized prestack dataset can be obtained. The abolv points are demonstrated by some 2D and 3D synthetic and real datasets. |
| |
| Keywords: | CRS-BEAM-PSDM Unified Kirchhoff imaging theory Two-step-smearing operator |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
