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| Advances in vibroseis acquisition |
| NI Yu-dong1,2, WANG Jing-fu2, MA Tao2, XU Hao2, CAO Wu-xiang2, GUAN Ye-zhi2 |
1 China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China;
2 Acquisition Technique Support Department,BGP Inc.,Zhuozhou,Hebei 072751,China |
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Abstract Vibroseis acquisition can be divided into 3 categories:conventional,high efficiency and high fidelity(HF).In conventional method,only one fleet of vibrators is used and shot gathers are obtained through cross-correlation.In high efficiency acquisition,two or more fleets of vibrators shoot at same time or at constant time interval,and shot gathers are obtained also by cross-correlation.In HF acquisition,one or more fleets vibrate simultaneously at several shot points with constant interval,and shot gathers are obtained through ground force signal deconvolution.Comparing application examples in the field,we conclude that high efficiency acquisition leads high production and the operation cost is obviously reduced,and one of the development trends might be integration of high efficiency and high fidelity(HF) method.
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Received: 14 October 2010
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2011, Vol. 46 
