PP- and PS-wave automatic time match based on dynamic image warp
Liu Lanfeng1,2,3, Wei Xiu-cheng1, Huang Zhongyu1, Wang Lu4, Li Lihua5
1. Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing 100083, China;
2. Key Laboratory of Shale Oil/Gas Exploration and Production Technology, SINOPEC, Beijing 100083, China;
3. National R & D Center of Shale Oil, Beijing 100083, China;
4. Technique Center, Logging Corporation, CNPC, Xi'an, Shaanxi 710021, China;
5. Beijing Yadan Technology Development Co. Ltd, Beijing 102200, China
Abstract：We put forward in this paper a practical workflow to extract time shift between PP- and PS-waves using dynamic image warping (DIW) algorithm in the global optimum framework. The workflow consists of three steps. Firstly, PP- and PS-wave travel time and amplitude are processed to meet the DIW conditions. Then the low-frequency time shift is extracted with DIW and PS-wave sections are warped. Finally, the high-frequency time shift between PP and warped PS section is calculated to accurately match them. This approach is successfully implemented in real multi-component data and good results are achieved. The time shift field can also be used to compute the vP/vS. Therefore, this workflow provides a new approach for PS-wave velocity modeling.
刘兰锋, 魏修成, 黄中玉, 王鲁, 李丽华. 动态图像变形的纵横波自动时间匹配[J]. 石油地球物理勘探, 2015, 50(4): 626-632.
Liu Lanfeng, Wei Xiu-cheng, Huang Zhongyu, Wang Lu, Li Lihua. PP- and PS-wave automatic time match based on dynamic image warp. OGP, 2015, 50(4): 626-632.
Hale D. A method for estimating apparent displace-ment vectors from time-lapse seismic images. Geophysics, 2009,74(5): V99-V107.
[2]
Hall S. A methodology for 7D warping and deformation monitoring using time-lapse seismic data. Geophysics, 2006,71(4): O21-O31.
[3]
Liner C and Clapp R. Nonlinear pairwise alignment of seismic traces.Geophysics, 2004,69(6): 1552-1559.
[4]
Sakoe H and Chiba S. Dynamic programming algo-rithm optimization for spoken word recognition. IEEE Transactions on Acoustics, Speech, and Signal Processing, 1978,26(1):43-49.
[5]
Anderson K and Gaby J. Dynamic waveform matc-hing.Information Sciences, 1983,31(4): 221-242.
[6]
Dave H. Dynamic warping of seismic images.Geo-physics, 2013,78(2):S105-S115.
Gong Xueping, Chen Shuangquan, Li Xiangyang. An improved method for P-P and P-SV wave time matching.OGP, 2012,47(5):698-704.
[8]
陈双全,王尚旭,李向阳等. P-SV与P-P波时间匹配应用研究.石油地球物理勘探,2010, 45(4):497-501] Chen Shuangquan, Wang Shangxu, Li Xiangyang et al. Time matching between P-SV wave and P-P wave.OGP, 2010,45(4):497-501.
[9]
Fomel S, Backus M, Fouad K. A multistep approach to multicomponent seismic image registration with application to a West Texas carbonate reservoir study.SEG Technical Program Expanded Abstracts, 2005,24: 1018-1021.
[10]
Fomel S, Backus M, DeAngelo M. Multicomponent seismic data registration for subsurface characterization in the shallow Gulf of Mexico.SEG Technical Program Expanded Abstracts, 2003, 22:15117-15121.
[11]
Formel S and Backus M. Multicomponent seismic data registration by least squares.SEG Technical Program Expanded Abstracts, 2003,22:781-784.
[12]
Yuan J J, Nathan G. Automated c-wave registration by simulated annealing. SEG Technical Program Expanded Abstracts, 2008,27:1102-1106.
[13]
Nickel M and Sonneland L. Automated PS to PP event registration and estimation of a high-resolution vP-vS ratio.SEG Technical Program Expanded Abstracts, 2007,26:869-872.
