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《Progress in Geophysics》 2014-01
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High-resolution prestack wide azimuth seismic acquistion technique in complex media of land——a example in Zhenba area

LI Gui-lin;XIA Zhong-mou;CHEN Gao;QI Zhong-shan;Center of Development and Research,China Geological Survey;Institute of Geology and Geophysics,Chinese Academy of Sciences;Southern Branch of Exploration Corporation,Sinopec;  
With increasing complexity of exploration objects,conventional narrow azimuth seismic acquisition techniques have not meet the demands of current exploration.Wide azimuth data sets involve abundant azimuth information which is beneficial to image deep layers,high-steep structures and anisotropic rock mass.Foreign wide azimuth exploration researches mostly focus on the areas of Gulf of Mexico as a representative of sub-salt reservoirs.However,domestic research concentrate on land.In this paper,Zhenba area as an example of land,we designed the 3D wide azimuth surveysystem and studied acquisition techniques facing some problems such as low signal to noise ratio seismic data sets and imaging high-steep structures difficultly,and made pertinent techinical strategies in increasing shooting and receving effects,superessing noise abilities,improving resolution of static correction and imaging effects of steep layers.The strategies not only improved the quality of seismic profiles,but also had general promoting significance
【CateGory Index】: P631.42
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