1. Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou, Guangdong 510075, China;
2. Guangzhou Marine Geological Survey, Guangzhou, Guangdong 510760, China
Abstract：As a marine seismic source, delayed up-down sub-arrays can expand both low frequency and high frequency compared with conventional flat array, which would be very helpful for deep target imaging in marine hydrocarbon seismic exploration. On the basis of four sub-arrays source, we analyze in the paper airgun output characteristic values with different array modes and different delay times. Using preferable convex arrays in deepwater acquisition, we obtain seismic data with higher signal to noise ratio and higher resolution. Meanwhile we discuss a few issues such as sub-arrays depth, delay time, array symmetry,and off gun standard,and put forward some suggestions.
Yang Kai,Chen Hua,Gu Hanming. The design and application of tridimensional delayed excitation air-gun arrays to deep water seismic exploration. Chinese Journal of Engineering Geophysics,2011,8(6):641-647.
Wang Jianhua,Li Xuxuan,Gu Hanming. The optimal design of 3D air-gun arrays combination in marine seismic exploration. Geological Science and Technology Information,2012,31(2):133-138.
Li Xuxuan,Wen Shuliang,Gu Hanming et al. A numerical simulation of wavelets from offshore air gun array seismic source. China Offshore Oil and Gas,2009,21(4):215-220.
Li Xuxuan,Wang Jianhua,Zhang Jinmiao et al. Design and application of air-gun arrays in marine seismic exploration. Acta Petrolei Sinica,2012,33(S1):142-148.
Li Xuxuan,Wang Jianhua,Yang Kai et al. A study on optimization of seismic air-gun array source and its application in offshore deep water. China Offshore Oil and Gas,2012,24(3):1-6.
Wei Chenglong,Hao Xiaozhu,Yi Hai et al. Design and application of seismic exploration source for the Mesozoic group in the northern South China Sea. OGP,2012,47(S1):1-7.
[9]
王立明. 范式气体下气枪激发子波信号模拟研究[博士学位论文]. 陕西西安:长安大学,2010.
Wang Liming. Simulation Study on Signature Stimulated by Air-guns in Conditions of Van der Waals Gas[D]. Chang'an University,Xi'an,Shanxi,China,2010.
