Advances in New and Renewable Energy >
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
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
HUANG Jian-yu , WU Zhong-liang , WANG Wei-wei , XIE Cheng-liang . Key Techniques and Experimental Study of Vertical Cable Seismic System for Gas Hydrate[J]. Advances in New and Renewable Energy, 2016 , 4(3) : 219 -224 . DOI: 10.3969/j.issn.2095-560X.2016.03.009
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