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*

doi:10.11978/j.issn.1009-5470.2013.02.013

热带海洋学报 ›› 2013, Vol. 32 ›› Issue (2): 112-117.doi: 10.11978/j.issn.1009-5470.2013.02.013cstr: 32234.14.j.issn.1009-5470.2013.02.013

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^{1, 2}，高红芳^{1, 2}，陈泓君^{1, 2}，王立飞^{1, 2}

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

收稿日期:2011-12-06 修回日期:2013-06-10 出版日期:2013-06-10 发布日期:2013-06-10
作者简介: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
基金资助:
基金项目：中国海及邻域构造演化研究项目(GZH201100205)

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^1,2, GAO Hong-fang^1,2, CHEN Hong-jun^1,2, WANG Li-fei^1,2

1. Guangzhou Marine Geology Survey, Guangzhou 510075, China; 2. Key Laboratory of Marine Mineral Resources, Ministry of Land, Resources, Guangzhou 510075, China

Received:2011-12-06 Revised:2013-06-10 Online:2013-06-10 Published:2013-06-10

摘要/Abstract

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

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

中图分类号:

P738.4

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.

WANG Jun, GAO Hong-fang, CHEN Hong-jun, WANG Li-fei. Time to depth conversion based on velocity-depth linear model and its application in the deep-water area of the South China Sea[J]. Journal of Tropical Oceanography, 2013, 32(2): 112-117.

参考文献

[1] 黄春菊),(周蒂),(陈长民),等. 深反射地震剖面所揭示的白云凹陷的深部地壳结构[J]. (科学通报,) 2005,50(5):1024-1031.

[2] 汪俊),(高红芳),(黄永健). 基于线性水平连续介质速度模型的南海中央海盆深水区速度分析[J]. (南海地质研究,) 2010:67(1) -75.

[3] 王衍棠),(陈玲),(吴大明). 南海中建南盆地速度资料分析与应用[J]. (热带海洋学报,) 2006,25(5):49-55.

[4] 陆基孟) 地震勘探原理及资料解释[M]. 北京: 石油工业出版社, 1991: 1-240.

[5] SLOTNICK M M. On seismic computations with applications, Ⅰ[J]. Geophysics, 1936,1(1):9-22.

[6] KAUFMAN H. Velocity functions in seismic prospecting[J]. Geophysics, 1953,18:289-297.

[7] AL-CHALABI M. Time-depth relationships for multilayer depth conversion[J]. Geophysical Prospecting, 1997,45:715-720.

[8] MARSDEN D. V0-k method of depth conversion[J]. The Leading Edge, 1992,11:53-54.

[9] 陈美玲). 台湾海峡及台湾西部平原之沉积层速度构造[D]. (台湾:国立中央大学) 2006:1-110.

[10] JAPSEN P. Influence of lithology and Neogene uplift on seismic velocities in Denmark: Implication for depth conversion of maps[J]. Amer Assoc Petrol Geol Bull, 1993,77(2):192-211.

[11] SMALLWOOD J R. Use of V0-k depth conversion from shelf to deep-water: How deep is that brightspot[J]. First Break, 2002,20(2):99-107.

[12] ALAMINIOKUMA G I, UGBOR C C. Analytical velocity model for depth conversion in the subsurface facies of Agbada formation in the Niger Delta, Nigeria[J]. The Pacific Journal of Science and Technology, 2010,11(1):563-575.

[13] 谢锐杰),(朱广生),(刘鹏). VSP时深曲线的向下延伸[J]. (新疆石油地质,) 2000,21(6):468-536.

[14] WANG P X, PRELL W L, BLUM P. Leg184 Summary: Exploring the Asian monsoon through drilling in the South China Sea[J]. Proc. ODP, Initial Reports, 2000,184:1-77.

[15] DIX C H. Seismic velocities from surface measurements[J]. Geophysics, 1955,20:68-86.

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^*

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

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

Metrics

本文评价

推荐阅读 0

[1]	林巍, 张健, 李家彪. 南沙中业群礁地区中生代残留盆地GPU重力异常三维反演^*[J]. 热带海洋学报, 2013, 32(4): 36-42.
[2]	罗文造,阎贫,温宁,王嘹亮 . 南海北部潮汕坳陷海区海底地震仪调查实验[J]. 热带海洋学报, 2009, 28(4): 59-65.