Acquisition footprints supersession with source and receiver line interpolation in the OVT domain
Duan Wensheng1, Pei Jiading2, Li Fei1, Sun Jianhua3, Liu Zhengwen1, Song Wenjie1
1. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
2. Seismic Data Processing Center, GRI, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China;
3. Department of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
Abstract：Obvious footprints are seen on seismic data in Tabei MS Survey, Tarim Basin, which affects target (Ordovicion carbonate) imaging. These are caused by large source and receiver line spacing and low signal noise ratio. This paper proposes two strategies to suppress footprints through seismic processing. One is based on combination of some techniques, such as data regularization, 4D RNA, and poststack noise elimination. This method moves the footprint suppression from poststack stage to restack stage, and it cannot completely eliminate footprints. The other is based on combined both 5D interpolation for source and receiver lines, and migration in the OVT domain. This approach simulates seismic acquisition with half source and receiver line spacing, so it removes causes of footprints. Processing results demonstrate the validity of the proposed approach.
段文胜, 裴家定, 李飞, 孙建华, 刘正文, 宋文杰. OVT域内插炮检线压制采集脚印[J]. 石油地球物理勘探, 2016, 51(1): 40-48.
Duan Wensheng, Pei Jiading, Li Fei, Sun Jianhua, Liu Zhengwen, Song Wenjie. Acquisition footprints supersession with source and receiver line interpolation in the OVT domain. OGP, 2016, 51(1): 40-48.
Ma Sanhuai,Yang Changchun,Han Xiaoli et al. The review of methods of acquisition footprint analysis and processing. Progress in Geophysics,2008,23(2):500-507.
Wan Xuejian,Yang Bo,Sun Defu et al. Quantitative analysis of 3D geometry footprint. OGP,2011,46(3):357-363.
[10]
Vermeer G J O.3D Seismic Survey Design.New York,SEG,2002.
[11]
Cary P W. Common-offset-vector gather:an alternative to cross-spreads for wide-azimuth 3-D surveys. SEG Technical Program Expanded Abstracts,1999,18:1496-1499.
Duan Wensheng,Li Fei,Wang Yanchun et al. Offset vector tile for wide-azimuth seismic processing. OGP,2013,48(2):206-213.
[13]
Schapper S,Jefferson R,Calvert A et al. Anisotropy velocities and offset vector tile prestack-migration processing of the Durham Ranch 3D,Northwest Colorado. The Leading Edge,2009,28(11):1352-1361.
[14]
Calvert A,Jenner E,Jefferson R et al. Preserving azimuthal velocity information:experiences with cross-spread noise attenuation and offset vector tile preSTM. SEG Technical Program Expanded Abstracts,2008,27:207-211.
[15]
Hollander Y,Kosloff D,Koren Z. Seismic data interpolation by orthogonal matching pursuit. 74th EAGE conference & Exhibition,2012,B023.
