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《Chinese Journal of Geophysics》 2017-01
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Fast least-squares reverse time migration based on plane-wave encoding for VTI media

LI Zhen-Chun;HUANG Jin-Qiang;HUANG Jian-Ping;ZHU Feng;Department of Geophysics,School of Geosciences,China University of Petroleum(East China);  
Seismic anisotropy of the earth medium is primarily manifested as velocity anisotropy,which certainly affects the kinematic properties of seismic waves propagating inside the earth.The traditional acoustic reverse time migration(RTM) and least-squares reverse time migration(LSRTM) do not account for this distortion of phases caused by strong anisotropy, which can lead to defocusing of migration images, the warp of events and the slow searching efficiency or nonconvergence following the increase of iterations. Although reverse time migration for vertical transverse isotropic media(VTI-RTM) is capable of making up these defects,the low-frequency noise in shallow section,poor imaging due to energy loss in mid-deep part,imbalanced amplitude and others still exist in migration imaging processing. To correct for this drawback, this paper uses a linearized inversion method applicable for vertical transverse isotropic media firstly,denoted as VTI-LSRTM. The key points of this method include two parts: ①We use a linearized anisotropy quasi-acoustic modeling operator for forward modeling during the least-squares iterations. ② Gradient direction of the misfit function is derived using the adjoint-state method for back propagating the residual wavefields. Then for saving the input/output and storage demands and improving the efficiency of inversion, we further introduces the plane-wave encoding technique to the inversion framework of VTI media and presents the strategy of fast least-squares reverse time migration with plane-wave encoding for VTI media. Numerical tests on synthetic dataset with a simple model and a complex Marmousi model prove that,① the merit of the proposed method surpasses standard acoustic RTM and LSRTM when the recorded data had strong anisotropy effects,and ②the crosstalk introduced by plane-waves and the low-frequency noise from itself of two-way wave propagator can be suppressed automatically, and ③ the advantage of this approach compared with conventional VTI-LSRTM is that it both produces high quality images with better balanced amplitudes in mid-deep parts and higer resolution SNR fidelity similar to VTI-LSRTM and decreases the computational cost significantly. The sensitivity tests for background velocity errors reveal that the liability of this method is the requirement for relatively accurate migration velocity and Thomsen parameter models.
【Fund】: 国家重点基础研究发展计划(2014CB239006);; 国家自然科学基金(41274124);; 中央高校科研业务费专项基金(R1401005A)联合资助
【CateGory Index】: P631.44
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【Citations】
Chinese Journal Full-text Database 10 Hits
1 HUANG Jian-Ping;LI Chuang;LI Qing-Yang;GUO Shu-Juan;DUAN Xin-Biao;LI Ji-Guang;ZHAO Sheng-Tian;BU Chang-Cheng;Department of Geophysics,China University of Petroleum (East China);SINOPEC Geophysical Research Institute;Shengli Geophysical Research Institute of SINOPEC;;Least-squares reverse time migration with static plane-wave encoding[J];地球物理学报;2015-06
2 Han Jianguang;Wang Yun;Zhang Xiaobo;Xing Zhantao;Institute of Geology and Geophysics,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Institute of Geochemistry,Chinese Academy of Sciences;Chinese Academy of Geological Sciences;China Huadian Science and Technology Institute;;Gaussian beam prestack depth migration in VTI media[J];石油地球物理勘探;2015-02
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6 Huang Jianping;Sun Yunsong;Li Zhenchun;Cao Xiaoli;Li Chuang;China University of Petroleum (East China);;Least-squares split-step migration based on frequency-division encoding[J];石油地球物理勘探;2014-04
7 Huang Jianping;Cao Xiaoli;Li Zhenchun;Sun Yunsong;Li Chuang;Gao Guochao;Geophysics Department, Schools of Geosciences,China University of Petroleum (East China);;Least square reverse time migration in high resolution imaging of near surface[J];石油地球物理勘探;2014-01
8 Huang Jianping;Xue Zhiguang;Bu Changcheng;Li Zhenchun;Wang Changbo;Gao Guochao;Cao Xiaoli;Li Guolei;School of Geosciences,China University of Petroleum;Shengli Geophysical Research Institute,SINOPEC;Shengli Geophysical Research Institute.SINOPEC;;The Study of Least-Squares Migration Method Based on Split-Step DSR[J];吉林大学学报(地球科学版);2014-01
9 LI Na;HUANG Jian-Ping;LI Zhen-Chun;TIAN Kun;LI Qing-Yang;School of Geoscience,China University of Petroleum;;The study on numerical simulation method of Lebedev Grid with dispersion improvement coefficients in TTI media[J];地球物理学报;2014-01
10 LI Zhen-Chun;GUO Zhen-Bo;TIAN Kun;School of Geosciences,China University of Petroleum;;Least-squares reverse time migration in visco-acoustic medium[J];地球物理学报;2014-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Kuang Bin;Tang Xianggong;Zhang Meng;Zhao Qingguo;Shan Lianyu;Geophysical Research Institute,Shengli Oilfield Branch Co.,SINOPEC;;3D adaptive least-squares reverse-time migration[J];石油地球物理勘探;2018-01
2 NING Hong-xiao;BAO Qian-zong;FENG Xing-zhi;PI Hong-mei;YANG Yun-jian;HUANG Wei-ning;HOU Yu-xin;BGP Inc. CNPC;Department of Geophysics,School of Geological Engineering and Surveying Chang'an Univeristy;China Editorial Department of Oil Geophysical Prospecting;;Review of oil geophysical prospecting in 2015[J];地球物理学进展;2018-01
3 LIU Bin;ZHANG Heng;MLR Key Laboratory of Marine Mineral Resources,Guangzhou Marine Geological Survey;;Full waveform inversion of OBS data from ocean gas hydrate:synthetic example[J];地球物理学进展;2018-01
4 YONG Peng;HUANG Jianping;LI Zhenchun;LI Qingyang;LIU Peijun;YANG Mingwei;YUAN Shuangqi;REN Yingjun;School of Geosciences in China University of Petroleum;;Forward modeling by optimized equivalent staggered-grid finite-difference method for time-space domain[J];中国石油大学学报(自然科学版);2017-06
5 LI Jin-Li;QU Ying-Ming;LIU Jian-Xun;YUE Hang-Yu;LI Pei;CHEN De-Yuan;National Modern Geological Exploration Technology Research Center;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences;School of Geosciences,China University of Petroleum (East China);;A study of elastic least-squares reverse time migration for gas hydrate reservoirs[J];物探与化探;2017-06
6 LIAO Jian-ping;LIU He-xiu;DAI Shi-xin;ZHAO Yan-lin;REW Hursthouse;Hunan Provincial Key Laboratory of Shale Gas Resource Utilization,Hunan University of Science and Technology;State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology;Department of Geology of Hunan University of Science and Technology;School of Science and Sport,University of the West of Scotland;;Research on 2D acoustic wave full waveform velocity inversion in time-space domain[J];地球物理学进展;2017-06
7 LIANG Hong-xian;Shengli Geophysical Research Institute of Sinopec;;Review of well-constrained seismic processing technique[J];地球物理学进展;2017-06
8 LI Qing-Yang;HUANG Jian-Ping;LI Zhen-Chun;School of Geosciences of China University of Petroleum (East China);;Source-independent least-squares reverse time migration using student′s t distribution[J];地球物理学报;2017-12
9 YANG Ren-hu;LING Yun;QU Li-jian;WAN Yong-ge;LI Ying-qiu;SHI Yan-bin;Institute of Disaster Prevention;BGP CNPC;;Reverse Time Migration Amplitude Compensation Based on Source Illumination[J];科学技术与工程;2017-31
10 Huang Jinqiang;Li Zhenchun;Huang Jianping;Zhang Jinmiao;Sun Wenbo;School of Geosciences,China University of Petroleum (East China);CNOOC Research Institute;;Lebedev grid high-order finite-difference modeling and elastic wave-mode separation for TTI media[J];石油地球物理勘探;2017-05
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Zhang Hongzhou;Wang Yanfei;Institute of Geology and Geophysics,Key Laboratory of Oil and Gas Resources,Chinese Academy of Sciences;University of Chinese Academy of Sciences;;Iterative regularization migration inversion in VTI media[J];石油地球物理勘探;2014-06
2 LIU Yu-Zhu;WANG Guang-Yin;DONG Liang-Guo;YANG Ji-Zhong;State Key Laboratory of Marine Geology,Tongji University;CNPC CDEC Sichuan Geophysical Company;;Joint inversion of VTI parameters using nonlinear traveltime tomography[J];地球物理学报;2014-10
3 LIU Yu-Zhu;XIE Chun;YANG Ji-Zhong;State Key Laboratory of Marine Geology in Tongji University;;Gaussian beam first-arrival waveform inversion based on Born wavepath[J];地球物理学报;2014-09
4 Huang Jianping;Sun Yunsong;Li Zhenchun;Cao Xiaoli;Li Chuang;China University of Petroleum (East China);;Least-squares split-step migration based on frequency-division encoding[J];石油地球物理勘探;2014-04
5 Huang Jianping;Zhangqing;Zhangkai;Li Zhenchun;Yue Yubo;Yuan Maolin;School of Geoscience,China University of Petroleum (East China);Department of Data Processing,Exploration and Developing Institute,Liaohe Oilfield Company, PetroChina;Reseanh & Development Department,BGP Inc., CNPC;;Reverse time migration with Gaussian beams based on the Green function[J];石油地球物理勘探;2014-01
6 Huang Jianping;Cao Xiaoli;Li Zhenchun;Sun Yunsong;Li Chuang;Gao Guochao;Geophysics Department, Schools of Geosciences,China University of Petroleum (East China);;Least square reverse time migration in high resolution imaging of near surface[J];石油地球物理勘探;2014-01
7 Guo Zhenbo;Li Zhenchun;School of Geosciences, China University of Petroleum (East China);;True-amplitude imaging based on least-squares reverse time migration[J];石油地球物理勘探;2014-01
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9 Huang Jianping;Xue Zhiguang;Bu Changcheng;Li Zhenchun;Wang Changbo;Gao Guochao;Cao Xiaoli;Li Guolei;School of Geosciences,China University of Petroleum;Shengli Geophysical Research Institute,SINOPEC;Shengli Geophysical Research Institute.SINOPEC;;The Study of Least-Squares Migration Method Based on Split-Step DSR[J];吉林大学学报(地球科学版);2014-01
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