Beam-focusing migration of seismic data in piedmont zone
Wang Changbo1, Kuang Bin1, Tang Xianggong1, Wang hui1, Du Jixiu1, Liu Peng2
1. Geophysical Research Institute, Shengli Oilfield Branch Co., CNPC, Dongying, Shandong 257022, China;
2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
Abstract：Using inversion technique, we decompose seismic data into independent local plane waves. Noise is attenuated and will not be involved into migration. The beam-focusing migration technique is then developed with the decomposed data and is used to image low SNR data in piedmont zone. The principles of the bean-focusing migration based on the sparse inverse are discussed. Experimental results on field data in the Block H indicate that the proposed method deserves application.
王常波, 匡斌, 唐祥功, 王慧, 杜继修, 刘鹏. 束聚焦偏移技术在山前带的应用[J]. 石油地球物理勘探, 2016, 51(5): 924-929.
Wang Changbo, Kuang Bin, Tang Xianggong, Wang hui, Du Jixiu, Liu Peng. Beam-focusing migration of seismic data in piedmont zone. OGP, 2016, 51(5): 924-929.
Hill N R. Gaussian beam migration. Geophysics,1990,55(11):1416-1428.
[2]
Hale D. Migration by the Kirchhoff,Slant Stack and Gaussian Beam Methods:Center for Wave Phenomena. Colorado School of Mines,Research Report CWP-126,1992.
[3]
Hill N R. Prestack Gaussian-beam depth migration. Geophysics,2001,66(4):1240-1250.
Yue Yubo,Li Zhenchun,Qian Zhongping et al. Amplitude-preserved Gaussian beam migration under complex topographic conditions. Chinese Journal of Geophysics,2012,55(4):1376-1383.
Cao Wenjun,Wang Huazhong,Li Zhengchun et al. Application of complex topographic Gaussian beam amplitude-preserved prestack depth migration in piedmont zone. Progress in Geophysics,2013,28(6):3086-3091.
[9]
?ervený V. Gaussian beam synthetic seismograms. Journal of Geophysics,1985,58:44-72.
[10]
Nicolay M T,Richard T,Sergey F et al. Gaussian beam decomposition for seismic migration. SEG Technical Program Expanded Abstracts,2011,30:3356-3361.
[11]
Wang Y F,Liu P,Li Z H et al. Data regularization using Gaussian beams decomposition and sparse norms. Journal of Inverse and Ill-posed Problems,2013,21(1):1-23.
Wang Yanfei,Yang Changchun,Duan Qiuliang. On iterayive regularization methods for migration deconvolution and inversion in seismic imaging. Chinese Journal of Geophysics,2009,52(6):1615-162.
Liu Peng,Wan Yanfei,Yang Mingming et al. Seismic data decomposition using sparse Gausian beam. Chinese Journal of Geophysics,2013,56(11):3887-3895.
[14]
Wang Y F,Yang C C,Cao J J. On Tikhonov regularization and compressive sensing for seismic signal process. Mathematical Models and Methods in Applied Sciences,2012,22(2):1150008-1-24.
