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热带海洋学报 >

2013 , Vol. 32 >Issue 2: 112 - 117

DOI: https://doi.org/10.11978/j.issn.1009-5470.2013.02.013

海洋地球物理学

基于速度-深度线性模型的时深转换方法及其在南海海盆深水区的应用*

  • 汪俊 ,
  • 高红芳 ,
  • 陈泓君 ,
  • 王立飞
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  • 1. 广州海洋地质调查局，广东 广州 510075；2. 国土资源部海底矿产资源重点实验室，广东 广州 510075
作者简介: 汪俊(1983—)，男，浙江省江山市人，助理工程师，从事海洋区域地质调查和研究，近期工作方向为地球物理建模(联合重、磁和地震资料)。E-mail:wj_geoscience2008@126.com

收稿日期: 2011-12-06

  修回日期: 2013-06-10

  网络出版日期: 2013-06-10

基金资助

基金项目：中国海及邻域构造演化研究项目(GZH201100205)

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Time to depth conversion based on velocity-depth linear model and its application in the deep-water area of the South China Sea

  • WANG Jun ,
  • GAO Hong-fang ,
  • CHEN Hong-jun ,
  • WANG Li-fei
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  • 1. Guangzhou Marine Geology Survey, Guangzhou 510075, China; 2. Key Laboratory of Marine Mineral Resources, Ministry of Land, Resources, Guangzhou 510075, China

Received date: 2011-12-06

  Revised date: 2013-06-10

  Online published: 2013-06-10

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摘要

介绍了沉积层速度-深度线性模型的原理及其基本特点，利用沿南海海盆深水区一条多道地震剖面解释的速度谱资料，将沉积层速度-深度线性模型应用于该剖面解释数据的时深转换中，建立了与之相关的一整套工作流程，整个流程实现了可视化，并考虑了沉积地层速度的横向变化，为地震剖面的地质解释提供了直观且更为可靠的素材。最后，分别从理论和实践角度分析探讨了该时深转换模型的应用前景和局限性，借此为后续研究工作提供参考。

关键词： 沉积地层; 速度-深度线性模型; 时深转换; 速度谱; 均方根速度; 层速度; 南海海盆深水区

本文引用格式

汪俊 , 高红芳 , 陈泓君 , 王立飞 . 基于速度-深度线性模型的时深转换方法及其在南海海盆深水区的应用*[J]. 热带海洋学报, 2013 , 32(2) : 112 -117 . DOI: 10.11978/j.issn.1009-5470.2013.02.013

Abstract

The theory and basic features of velocity-depth linear model are introduced in this paper. With the velocity spectra data along a multi-channel seismic profile in the deep-water area of the South China Sea and by applying the velocity-depth linear model to the interpreted data of the profile, we obtained direct results for geological interpretation. In addition, through the creation of visual workflow and the consideration of horizontal variation of sedimentary interval velocity within the depth conversion procedures, we made the results of depth conversion more reliable. At the end, we discussed the limitation and further application of velocity-depth linear model in terms of both theory and practice, which would be considered in further work.

Key words： sedimentary stratum; velocity-depth linear model; time to depth conversion; velocity spectra; mean root square velocity; interval velocity; South China Sea basin deep-water area

参考文献

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