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《Chinese Journal of Geophysics》 1987-06
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VELOCITY IMAGING FROM REFLECTION SEISMIC DATA BY JOINT INVERSION TECHNIQUES

YANG WEN-CAI JIAO FU-GUANG(Beijing Computer Center, The Ministry of Geology and Mineral Resources)  
This paper introduces a new procedure for P-wave velocity imaging from reflection seismic data based on integrated inversion techniques. After deconvolution, stacking and migration, interpretors may distinguish the events between primary reflections and other events on a seismic section. Therefore, it is possible to obtain traveltime data and a statistical estimate of the wavelet W(t) from both CSP gathers and zero-offset sections by using an interactive workstation. If the dips of formations in the studied area are gentle, then the traveltime data T(x, t) can be picked up from common source-receiver seismic traces on a stacked seismic section.The traveltime data are insufficient for velocity imaging because there exist infinite solutions which can fit the data. We use both the traveltime and RMS velocity data to construct a joint inversion procedure. The first step in this procedure is to redo velocity analysis which keeps consistence between picked primary reflections and RMS velocity data V(x', t), where x' represents the position of the velocity analysis traces. In order to guarantee the. vertical resolution of velocity imaging, the spacing of the velocity analysis should be less than 21 CDP traces, and depending on the thickness of target layers; the time intervel in the analysis should be less than 21 ms.The second step is joint inversion of traveltime data and RMS velocities for velocity analysis traces, producing intervel velocity and layer thickness via generalized inversion techniques. The equations in the joint inversion procedure can be represented as follows:*=1 wherec1 = interval velocity of the i-th layer,Vj = RMS velocity data at time tj,△T1 = T1 - T1-1, the diffirence of traveltimes between adjacent reflectors,δVi = errors in the RMS velocity data.After this equation is solved by employing a generlized inversion technique, the thickness of each layer can be calculated easily. This joint inversion method has been tested by synthetic models, having vertical resolution of 60 m and interval velocity variance about ± 100 m/s. In the areas lacking wells, the inversion results, acting like acoustic logging data, provide satisfactory constraints for quality control of velocity imaging.The third step in the imaging procedure estimates the velocity variations in each section-block between adjacent velocity-analysis traces via inversion of traveltime T(x, t) and the resulted interval velocity data c(x', z) on the block boundaries. Various techniques in computed tomography and wave equation inversion may be used for velocity reconstruction in a sectio-block. For instance, an 2-D scalar wave equation may be reduced to the eikonal equation via. WKJB approximation, then discrete reconstruction algorithms, e. g. ART or SIRT in computed tomography, may be applied. By employing the "Exploding reflector" model, the 2-D scalar wave equation can be written as:wherevi(x) = continuous effective velocity for the i-th interface, can be calculated via c(x' , z), P(x, z) = pseudo-source term representing velocity discontinuities on reflectors, W(t) = source signiture obtained from wavelet processing.In order to determine the velocity discontinuity P(x, z) which is actually a singular function of the velocity function c(x, z), we need singularity inversion techniques to solve the source-term inverse problems of partial differential equations. Finally, a discretized image of c(x, z) can be obtained from P(x, z) and vi(x).The above mentioned procedure of velocity imaging has been tested by a few drilling wells in a sedimentary basin in western China. The results (see enclosed color photos) shows a positive relation between velocity images and variation of lithology, giving distinguished indications of obscure traps for locating oil and gas deposits.
【Fund】: 国家自然科学基金会;; 地震学联合基金
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【References】
Chinese Journal Full-text Database 8 Hits
1 YANG WEN-CAI(Institute of Geophysical & Geochemlcal Exploration Ministry of Geology and Mineral Resources, Langjang 102849);NONLINEAR CHAOTIC INVERSION OF SEISMIC TRACES:(I)THEORY AND NUMERICAL EXPERIMENTS[J];Chinese Journal of Geophysics;1993-02
2 ZHANG Chao-ying ZHOU Xiao-ying DONG Ning (SINOPEC-Exploration & Production Research Institute,China Petroleum & Chemical Corporation,Beijing 100083,China);Seismic inversion constrained by wells in the Daniu gas-field in Eerduosi Basin[J];Progress In Geophysics;2004-04
3 LIU FU-TIAN(Institute of Geophysics, Academia Sinica, Beijing 100101);THE RESEARCH SITUATION AND A PROSPECT ON THE THREE DIMENSIONAL VELOCITY STRUCTURE[J];Chinese Journal of Geophysics;1991-06
4 YANG Wen-Cai, YANG Wu-Yang, CHENG Zhen-YanInstitute of Geology, Chinese Academy of Geological Sciences, Beijing 100037,China;Seismic velocity model of the Chinese continental scientific drilling site[J];Chinese Journal of Geophysics;2006-02
5 HU ZHEN-YUAN (China University of Geosciences. Beijing 100083, China) YANG WEN-CAI;CHENG ZHEN-YAN (Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China);PRESTACK DEPTR MIGRATION OF DEEP SEISMIC REFLECTION DATA AT THE CONTINENTAL SCIENTIFIC DRILLING SITE IN SULU[J];Chinese Journal of Geophysics;2000-04
6 YANG Hui 1 DAI Shi kun 1 SONG Hai bin 2 Huang Lin ping 1 (1. Key Laboratory of Geophysics, University of Petroleum, Beijing 102200, China; 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China);Overview of Joint Inversion of Integrated Geophysics[J];Progress In Geophysics;2002-02
7 Yu Peng, Wang Jialin, Wu Jiansheng,Yang Hui. State Key Laboratory of Marine Geology, Tongji U-niversity, Shanghai 200092, China;Review and discussions on geophysical joint inversion.[J];Progress in Exploration Geophysics;2006-02
8 Yang Wencai; (Institute of Geophysical and Geochemical Exploration, MGMR ,Langfang 102849);Inverse scattering of wave equation and iterative linearized inversion[J];Geophysical Prospecting For Petrole;1995-03
【Citations】
Chinese Journal Full-text Database 3 Hits
1 YANG WEN-CAI(Beijing Computer Center, Ministry of Geology and Mineral Resources);A GENERALIZED INVERSION TECHNIQUE FOR POTENTIAL FIELD DATA PROCESSING[J];Chinese Journal of Geophysics;1986-03
2 Yang Wencai;INVERSION OF REFLECTION SEISMIC TRACES——Problems and Limitations[J];Geophysical Prospecting For Petrole;1986-03
3 Yang Wencai(Beijing Computer Center, Ministry of Geology and Mineral Resources of China);COMPUTED TOMOGRAPHY FOR SEISMIC BODY WAVES AND EARTH IMAGING[J];Earthquake Research In China;1986-03
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 FAN SHANG-WU (Institute of Computational Mathematics and Scientific/Engineering Computing,Academia Sinica,Beijing 100080);NUMERICAL SOLUTION METHOD FOR A CLASS OF ILL-POSED PROBLEM OF HYPERBOLIC EQUATION ABOUT STRUCTURE IMAGE(Ⅱ): PROPERLY POSEDNESS OF THE APPROXIMATE PROBLEM AND CONVERGENCE OF ITS SOLUTION[J];Chinese Journal of Geophysics;1995-S1
2 YANG FU-SHENG; QIAN SHAO-XIN (Research Institute of Petroleum Exploration & Development, Beijing 100083);1-D VISCOELASTIC WAVE EQUATION INVERSION ──APPLICATION OF WAVELET TRANSFORM[J];Chinese Journal of Geophysics;1995-S1
3 YANG WEN-CAI(Institute of Geophysical & Geochemlcal Exploration Ministry of Geology and Mineral Resources, Langjang 102849);NONLINEAR CHAOTIC INVERSION OF SEISMIC TRACES:(I)THEORY AND NUMERICAL EXPERIMENTS[J];Chinese Journal of Geophysics;1993-02
4 YANG WEN-CAI(Institute of Geophysical and Ceochemical Exploration, Ministry of Geology and Mineral Resources, Langiang 102849);NONLINEAR CHAOTIC INVERSION OF SEISMIC TRACES: II. LYAPUNOV EXPONENTS AND ATTRACTORS[J];Chinese Journal of Geophysics;1993-03
5 PENG CHENG-BIN(Institute of Geology, SSB, Beijing)CHEN YONG(State Seismological Bureau, Beijing);A COMPUTER SIMULATION STUDY ON THE DIFFRACTION SEISMIC TOMOGRAPHY[J];Chinese Journal of Geophysics;1990-05
6 LI JIA-KANG;JIANG LAN-YIN;LIU YU(Research,Institute of petroleum Exploration and Development, Geophysics Department, Beijing 100083);A COMPARISON OF DESCENDING DIMENSION ALGORITHM WITH CONJUGATE GRADIENT METHOD AND SVD[J];Chinese Journal of Geophysics;1994-S2
7 TANG LONG-JI;LI WEN;DENG YANG-SHENG(Department of Mathematics, Penn State University, Pa 16802, USA);SOMEASPECTSFORSOLVINGILL-POSED EQUATION IN GEOPHYSICS[J];Chinese Journal of Geophysics;1995-01
8 Cao Dexin Cao Siyuan (China University of Mining and Technology,221008);Exploring the Discontinuity of Coal Seam by Seismic CT Technique[J];Computerized Tomography Teory and Applications;1992-03
9 CHEN Sheng-Chang~1,XIAO Peng-Fei~21 Department of Earth Sciences,Zhejiang University,Hangzhou 310027,China2 Institute of Geophysical Prospecting,SEPRI,SINOPEC,Nanjing 210014,China;Wavenumber domain generalized inverse algorithm for potential field downward continuation[J];Chinese Journal of Geophysics;2007-06
10 ZHANG Ming-zhen 1,2 , TAN Ming-you 2, WANG Xing-mou 2 (1. University of Petroleum,Dongying 257061,China; 2. Geophysical Research lnstitute of Shengli Oilfield, Dongying 257062, China);Combined describing techniques of tertiary hidden hydrocarbon reservoir in Jiyang depression[J];Progress In Geophysics;2005-01
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Ruan Yingzheng;HUYGENS' PRINCIPLE IN COMPLEX SPACE[J];Journal of University of Electronic Science and Technology of China;1987-01
2 YANG CHANG-CHUN; LIU XING-CAI; LI YOU-MING; LIU FU-GUI; LENG CHUAN-BO; LIU HONG1)(Geophysics Institute, Academia Sinica, Beijing 100101, China)2)(Shengli Petroleum Administration Bureau, Dongying, Shandong 257000, China);A METHODOLOGY FOR SEISMIC PRESTACK DEPTH MIGRATION[J];Chinese Journal of Geophysics;1996-03
3 Li Shuang, Xu Caijun and Wang Xinzhou\;(School of Geodesy and Geomatics, Wuhan University\ 430079)\;;MODELS AND ALGORITHMS OF JOINT INVERSION WITH VERIOUS KIND OF DATA[J];Crustal Deformation and Earthquake;2002-03
4 ZHU Jing yi(Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029);Overview of integrated geophysics of oil & gas exploration[J];Progress In Geophysics;2003-01
5 JING Rongzhong,BAO Guangshu,CHEN Shaoqiu (School of InfoPhysics and Geomatics Engineering, Central South University, Changsha 410083, China);A review of the researches for geophysical combinative inversion[J];Progress In Geophysics;2003-03
6 JIN SHENG-WEN; CAO JING-ZHONG;MA ZAI-TIAN(Tongji University,Shanghai 200092,China)LI PEI-MING (2nd Division of BGP,Kaifeng 475002,China);A SPLITTING ALGORITHM FOR 3D STEEP-DIP DEPTH MIGRATION[J];Chinese Journal of Geophysics;1996-04
7 MA ZMI-TIAN (Tongji University,Shanghai 200092);ON THE APPLIED SEISMOLOGY IN THE TWENTY-FIRST CENTURY[J];Chinese Journal of Geophysics;1995-04
8 MA ZAI-TIAN (Tongji University,Shanghai 200092);TWO DIMENSIONAL ELASTIC WAVE MIGRATION OF COMMON OFFSET SEISMIC SECTION[J];Chinese Journal of Geophysics;1995-S1
9 FAN SHANG-WU (Institute of Computational Mathematics and Scientific/Engineering Computing,Academia Sinica,Beijing 100080);THE FAST-SPEED METHODS FOR 3-D WAVE EQUATION DEPTH MIGRATION[J];Chinese Journal of Geophysics;1995-S1
10 (Depatment of Geophysics, China University of Geosciences, Beijing 100083);APPLIED STUDY OF GAUSSIAN BEAM METHOD IN 2-D INHOMOGENEOUS MEDIA AND LATERALLY VARYING LAYERED STRUCTURES[J];Chinese Journal of Geophysics;1995-S1
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 YANG Xiao-chun, LI Xiao-fan, ZHANG Mei-gen (Institute of Geology & Geophysics ,Chinese Academy of Science, Beijing 100101,China);Some Mathematical Prolems in Nonlinear Inversion of Seismic Wave[J];Journal of Seismology;2003-01
2 LU Gong-he~(1,2),YU Chang-qing~3,DONG ning~3(1.Xi(')an Jiaotong University,Xi(')an 710049,China;2.Geophysical Exploration & Development Corp of Shengli oil Field,Dongying 257100,China;3.Research Institute of Petroleum Exploration &Development,SINOPEC,Beijing 100083,China);The application of post-stack seismic attribute analysis in the oil-gas exploration and development[J];Progress in Geophysics;2006-01
3 ZHU Jing yi(Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029);Overview of integrated geophysics of oil & gas exploration[J];Progress In Geophysics;2003-01
4 ZHANG Hong-bing~1,YANG Chang-chun~2,SHANG Zuo-ping~1,YANG Qing-feng~(1,3)(1.College of Civil Engineering,Hohai University,Nanjing 210098,China;2.Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;3.Jiangsu Province Institute of Hydrogeological and Engineering Geological Investigation,huaian 223000,Cina);Impedance inversion with soft constrained mode[J];Progress in Geophysics;2006-03
5 DONG Ning~(1,2,3),ZHOU Xiao-ying~3,LIU Zhen-feng~3,LIU Jun-zhou~3,LIU Zhong-qun~4,GUAN Ren-shun~5(1.Institute of Geology & Geophysics,CAS,Beijing 100029,China;2.Northwest University,Xi'an 710069,China;3.Exloration & Production Research Insttude,Sinopec,Beijing 100083,China;4.North China Branch Company,Sinopec,Zhengzhou 450006,China; 5.Shida Resource Science Technology Exploition Ltd,Beijing102200,China);The application of integrated seismic reservoir prediction in forcasting hidden gas reservoir of upper palaeozoic group,north Ordos basin[J];Progress in Geophysics;2006-03
6 YU Zhen-hua,FENG De-shan,TANG Jing-tian(School of Info-Physics and Geometrics Engineering,Central South University,Changsha 410083,China);The seismic tomography of combining velocity and absorption coefficient[J];Progress in Geophysics;2006-04
7 YANG WEN-CAI(Institute of Geophysical and Geochemical Exploration,Langfang, Hebei 102849);BG-INVERSE SCATTERING METHOD FOR INVERSION OF SEISMIC WAVEFIELD[J];Chinese Journal of Geophysics;1995-03
8 NIU YAN-LIANG;YANG WEN-CAI;WU YONG-GANG(Research Institute of Exploration and Development,Daqing Petroleum Administrative Bureau,Daqing 163712)(Institute of Geophysical and Geochemical Exploration,Ministry of Geology and Mineral Resources,Langjang 102849);SUCCESSIVE LINEARIZATION METHOD IN CROSS-HOLE TOMOGRAPHY[J];Chinese Journal of Geophysics;1995-03
9 QIAN Hui1), SU Heping1), JIANG Mei1) XUE Guangqi1), LIU Wen2) 1) Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037 2) No. 562 Comprehensive Research Institute, Ministry of Land and Resources, Yanjiao, Hebei, 065201;Tomography in the Chinese Continental Scientific Drilling Area of Donghai County, Jiangsu Province, China[J];Acta Geologica Sinica;2004-01
10 YANG WEN-CAI(Institute of Geophysical & Geochemlcal Exploration Ministry of Geology and Mineral Resources, Langjang 102849);NONLINEAR CHAOTIC INVERSION OF SEISMIC TRACES:(I)THEORY AND NUMERICAL EXPERIMENTS[J];Chinese Journal of Geophysics;1993-02
China Proceedings of conference Full-text Database 6 Hits
1 An Hongwei Department of Automation, Tsinghua University, Beijing, China CNOOC Research Center, Beijing;Evolvement feature of nonlinear dynamical system and application in seismic inversion[A];[C];2004
2 YANG Hui~1 YUPeng~2 1 petroleum Exploration and Production Research Institute,CNPC,Beijing,100083 2 School of Ocean and Earth Scie nce,Tongji University,Shanghai,200092;Applications of Integrated Geophysics in Oil & Gas Prospecting[A];[C];2008
3 YANG Wen-cai, YU Chang-qing(Institute of Geology, CAGS,Beijing 100037,China);On basic research problems in applied geophysics for deep oil and gas fields[A];[C];2007
4 WANG Huai-hong1,2,4, GONG Gu2, TIAN Yu-xin3(1.Geoinfomation Science & Engineering College,Shandong University of Science And Technology,Qingdao 266510,China2.Shandong Provincial Bureru of Coal Geology,Tai’An 271000,China3.School of Information & Electronics Engineering, Shandong Institute of Business Technology,Yantai 264005,China4.Shandong Geophysical Society,Ji’Nan 250031,China);The argumentation of coalfield digital seismic prospecting technology development and key problem in eastern China[A];[C];2007
5 WANG MIAO-YUE (Institute of Geophysics, Academia Sinica, Beijing 100101, China);PROGRESS IN RESEARCH ON SEISMIC PROSPECTING[A];[C];1997
6 LI YOU- MING (Institute of Geophysics, Chinese Academia Sinica, Beijing 100101, China) WU YONG-GANG (Dept of Exploration, Daqing Oil Administration Bureau, Daqing 163453, China);PRESENT CONDITIONS ABOUT RESERVOIR GEOPHYSICS IN CHINA AND THE THINKING IN THIS AREA[A];[C];1997
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