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The application of amplitude-preserved processing and migration for carbonate reservoir prediction in the Tarim Basin,China

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Petroleum Science 2011年第4期8卷 406-414页

作者： Sam Zandong Sun Yang Haijun Zhang Yuanyin Han Jianfa WangDan Sun Wenbo Jiang Shan Laboratory for Integration of Geology ＆ Geophysics China University of Petroleum Beijing 102249 China Research Institute of Exploration ＆ Development PetroChina Tarim Oilfield Company Korla 841000 China

Conventional seismic exploration method based on post-stack data usually fails to identify the distribution of fractured and caved carbonate reservoirs in the Tarim Basin,so the rich pre-stack information should be applied to the prediction of carbonate ***-preserved seismic data processing is the *** this paper,according to the feature of desert seismic data （including weak reflection,fast attenuation of high frequency components,strong coherent noises,low S/N and resolution）,a set of amplitude-preserved processing techniques is applied and a reasonable processing flow is formed to obtain the high quality *** implementing a set of pre-stack amplitude-preserved processing,we test and define the kernel parameters of amplitude-preserved Kirchhoff PSTM （pre-stack time migration） and subsequent gathers processing,in order to obtain the amplitude-preserved gathers used to the isotropic pre-stack inversion for the identification of caved *** AVO characteristics of obtained gathers fit well with the synthetic gathers from logging data,and it proves that the processing above is *** azimuthal processing techniques,including azimuth division and binning enlargement,are implemented for amplitude-preserved azimuthal gathers with the uniform *** can be used in the anisotropic inversion to detect effective *** processing techniques and flows are applied to the field seismic data,and are proved available for providing the amplitude-preserved gathers for carbonate reservoir prediction in the Tarim Basin.

关键词： amplitude-preserved processing amplitude-preserved pre-stack time migration azimuth carbonate reservoir Tarim Basin

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维普期刊数据库

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Purposeless repeated acquisition time-lapse seismic data processing

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Petroleum Science 2008年第1期5卷 31-36页

作者： Li Jingye Chen Xiaohong Zhao Wei Zhang Yunpeng Key Laboratory for Hydrocarbon Accumulation Mechanism Ministry of Education China University of PetroleumBeijing 102249 China Basin ＆ Reservoir Research Center China University of Petroleum Beijing 102249 China School of Resource and Information China University of Petroleum Beijing 102249 China Research Center of CNOOC Beijing 100027 China

In China, most oil fields are continental sedimentation with strong heterogeneity, which on one side makes the reservoir prospecting and development more difficult, but on the other side provides more space for searching residual oil in matured fields. Time-lapse seismic reservoir monitoring technique is one of most important techniques to define residual oil distribution. According to the demand for and development of time-lapse seismic reservoir monitoring in China, purposeless repeated acquisition time-lapse seismic data processing was studied. The four key steps in purposeless repeated acquisition time-lapse seismic data processing, including amplitude-preserved processing with relative consistency, rebinning, match filtering and difference calculation, were analyzed by combining theory and real seismic data processing. Meanwhile, quality control during real time-lapse seismic processing was emphasized.

关键词： Time-lapse seismic purposeless repeated acquisition rebinning match filtering amplitude-preserved processing

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维普期刊数据库

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Pre-stack inversion for caved carbonate reservoir prediction:A case study from Tarim Basin,China

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Petroleum Science 2011年第4期8卷 415-421页

作者： Zhang Yuanyin Sam Zandong Sun Yang Haijun Wang Haiyang HanJianfa Gao Hongliang Luo Chunshu Jing Bing Laboratory for Integration of Geology ＆ Geophysics China University of Petroleum Beijing 102249 China Research Institute of Exploration ＆ Development PetroChina Tarim Oilfield Company Korla 841000 China

The major storage space types in the carbonate reservoir in the Ordovician in the TZ45 area are secondary dissolution *** the prediction of caved carbonate reservoir,post-stack methods are commonly used in the oilfield at present since pre-stack inversion is always limited by poor seismic data quality and insufficient logging *** this paper,based on amplitude preserved seismic data processing and rock-physics analysis,pre-stack inversion is employed to predict the caved carbonate reservoir in TZ45 area by seriously controlling the quality of inversion *** procedures mainly include angle-gather conversion,partial stack,wavelet estimation,low-frequency model building and inversion residual *** amplitude-preserved data processing method can achieve high quality data based on the principle that they are very consistent with the ***,the foundation of pre-stack inversion and reservoir prediction criterion can be established by the connection between reservoir property and seismic reflection through rock-physics ***,the inversion result is consistent with drilling wells in most *** is concluded that integrated with amplitude-preserved processing and rock-physics,pre-stack inversion can be effectively applied in the caved carbonate reservoir prediction.

关键词： Carbonate reservoir prediction pre-stack inversion amplitude-preserved processing rock physics

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