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《Oil Geophysical Prospecting》 2010-01
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Seismic data quality and sand layer Q absorption in Tarim desert area

Li He-qun1,2,Meng Xiao-hong1,Zhao Bo2,Luo Guo-an2,3 and Xu Feng4.1.China University of Geosciences,Beijing City,100083,China2.BGP Inc.of CNPC,Zhuozhou City,Hebei Province,072751,China3.China University of Petroleum,Beijing City,102249,China4.Southwest University of Petroleum,Chengdu City,Sichuan Province,610500,China  
Based on the seismic data in Tarim desert area,the sand layer Q absorption survey data and the Q absorption theory modeling,the main reason which causes correlation between seismic data Quality and terrain,how Q absorption affects seismic data,the sand layer Q value estimation,Q absorption compensation and other Questions were thoroughly analyzed in this paper.The analysis results show that sand layer Q absorption is not the main reason to cause correlation between seismic data Quality and the terrain,the current-used Q value estimation method faces strong interference in estimating Q value,however the Q absorption compensation,to a certain extent,only can decrease the difference of seismic data quality which is terrain correlated.
【CateGory Index】: P631.4
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