天然气水合物垂直缆地震系统关键技术与试验
收稿日期: 2016-03-28
修回日期: 2016-05-03
网络出版日期: 2016-06-27
基金资助
国家高技术研究发展计划(863计划)项目(2013AA092501)
Key Techniques and Experimental Study of Vertical Cable Seismic System for Gas Hydrate
Received date: 2016-03-28
Revised date: 2016-05-03
Online published: 2016-06-27
垂直缆地震(VCS)是构成天然气水合物立体化地震观测系统的观测手段之一。本文从天然气水合物调查及仪器设计角度出发,概述了国内外垂直缆地震发展动态,综合分析了天然气水合物垂直缆地震系统的关键技术,详细叙述了使用海底地震仪(OBS)模拟垂直缆地震系统的设计方式及海上采集试验。通过试验获取了天然气水合物立体探测地震数据,验证了应用超短基线技术(USBL)进行垂直缆水下定位的可行性,数据结果体现出了垂直缆地震相较于常规地震在数据质量上的优点,为垂直缆仪器研发、野外施工方法、数据采集等积累了经验。
关键词: 天然气水合物; 垂直缆地震(VCS); 海底地震仪(OBS)
黄建宇 , 伍忠良 , 王伟巍 , 谢城亮 . 天然气水合物垂直缆地震系统关键技术与试验[J]. 新能源进展, 2016 , 4(3) : 219 -224 . DOI: 10.3969/j.issn.2095-560X.2016.03.009
Vertical cable seismic (VCS) is one of the acquisition methods that make up the multi-dimensional seismic exploration system for gas hydrate. In this paper, with the perspective of gas hydrate survey and instrument design, the development trends of VCS at home and abroad were summarized, a comprehensive analysis of the key technologies in the development of VCS system for gas hydrate was made, and the design methods for simulated VCS system by using ocean bottom seismographs (OBSs) as well as the offshore acquisition experiment were explained in detail. Based on the experiment, the multi-dimensional seismic data for gas hydrate was achieved and the feasibility of the application of ultra-short base line (USBL) in VCS positioning underwater was confirmed. The results indicate that the VCS method embodies the advantage in data quality compared with the conventional seismic acquisition methods. Based on this work a number of experiences for VCS system development, field operation and vertical cable data acquisition have been accumulated.
Key words: gas hydrate; vertical cable seismic; ocean bottom seismograph
[1] ASAKAWA E, MURAKAMI F, SEKINO Y, et al. Vertical cable seismic survey for hydrothermal deposit[C]//Proceedings of EGU General Assembly. Vienna, Austria: EGU, 2012: 2236.
[2] 沙志彬, 梁金强, 苏丕波, 等. 珠江口盆地东部海域天然气水合物钻探结果及其成藏要素研究[J]. 地学前缘, 2015, 22(6): 125-135. DOI: 10.13745/j.esf.2015.06.009.
[3] RODRIGUEZ-SUAREZ C, STEWART R R. Survey design for vertical cable seismic acquisition[R]. CREWES Research Report, 1998, 10: 6-1-6-19.
[4] ASAKAWA E, MURAKAMI F, TSUKAHARA H, et al. Development of vertical cable seismic (VCS) system for seafloor massive sulfide (SMS)[C]//Proceedings of 2014 Oceans. St. John's, NL: IEEE, 2014: 1-7. DOI: 10.1109/ OCEANS.2014.7003171.
[5] WARD J A. 垂直电缆地震的价值[J]. 黄必铭, 译. 石油物探译丛, 1998(5): 81-85.
[6] GUIMARAES M A G. Physical model study of seismic acquisition and processing of vertical cable data[D]. Texas: University of Houston, 1998.
[7] BIAN A F, ZOU Z H, ZHOU H W, et al. Evaluation of multi-scale full waveform inversion with marine vertical cable data[J]. Journal of earth science, 2015, 26(4): 481-486. DOI: 10.1007/s12583-015-0566-3.
[8] 何勇, 张建中. 海洋地震垂直缆观测系统的射线照明分析[J]. CT理论与应用研究, 2015, 24(5): 689-700. DOI: 10.15953/j.1004-4140.2015.24.05.06.
[9] 伍忠良, 曾宪军, 王立明. 海洋天然气水合物调查地震采集技术——调查初始阶段研究[J]. 海洋技术, 2006, 25(4): 79-87. DOI: 10.3969/j.issn.1003-2029.2006. 04.021.
[10] 高凯, 金彦斌, 靳志杰, 等. 一种水下垂直探测系统专用电缆的设计探讨[J]. 现代传输, 2012(4): 55-57. DOI: 10.3969/j.issn.1673-5137.2012.08.003.
[11] 王伟巍, 朱世华, 袁修贵, 等. 海底地震仪的时间同步技术[J]. 海洋信息, 2013(2): 9-12. DOI: 10.3969/j.issn. 1005-1724.2013.02.002.
[12] WANG H J, LI X Y. Application of prestack Kirchhoff migration to vertical cable seismic data[C]//Proceedings of the 63rd EAGE Conference & Exhibition. Amsterdam, Netherlands: EAGE, 2001: 6-8.
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