保幅处理评价准则及在高邮地区的应用
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摘要
岩性油气藏勘探对地震资料振幅保真的要求较高,现行的处理方法在此方面缺乏相应的评价手段。针对该问题,提出了岩性油气储层保幅处理评价准则,以指导处理方法及参数的优选,建立了保幅性较高的处理流程,为后续进行地震波属性提取或AVA分析和波阻抗反演,并与岩石物理、地质、测井等先验知识相结合,进行岩性储层的描述和刻画提供相对保真的道集资料。在高邮凹陷地区的实际应用表明,该方法能够提高处理成果的保幅性,为岩性油气藏的识别奠定了基础。
The exploration of lithologic reservoir has high requirements for the preserved- amplitude of seismic data,and the current processing methods have no corresponding evaluation means in the aspect. Aiming at the problem,the evaluation criteria of preserved- amplitude processing for lithologic reservoir was proposed to guide the optimization of the process methods and parameters. The process flowsheet with high preserved- amplitude was established in order to provide relatively preserved- amplitude gathers for subsequent extracting seismic attributes or AVA analysis and wave impedence inversion,as well as the lithologic reservoir description combined with the prior information of rock physics,geology,and well logging. The application results showed that the method can increase the amplitude preservation of the processed data,and provide a base for the identification of lithologic hydrocarbon reservoirs in Gaoyou Sag,.
The exploration of lithologic reservoir has high requirements for the preserved- amplitude of seismic data,and the current processing methods have no corresponding evaluation means in the aspect. Aiming at the problem,the evaluation criteria of preserved- amplitude processing for lithologic reservoir was proposed to guide the optimization of the process methods and parameters. The process flowsheet with high preserved- amplitude was established in order to provide relatively preserved- amplitude gathers for subsequent extracting seismic attributes or AVA analysis and wave impedence inversion,as well as the lithologic reservoir description combined with the prior information of rock physics,geology,and well logging. The application results showed that the method can increase the amplitude preservation of the processed data,and provide a base for the identification of lithologic hydrocarbon reservoirs in Gaoyou Sag,.
引文
[1]朱小三,高锐,李秋生等.深反射地震数据的噪声衰减方法综述.地球物理学进展[J],2013,28(6):2878-2900.
[2]凌云研究组.叠前相对保持振幅、频率、相位和波形的地震数据处理与评价研究[J].石油地球物理勘探,2004,39(5):543-552.
[3]高军,凌云,周兴元,等.时频域球面发散和吸收补偿[J].石油地球物理勘探,1996,31(6):856-866,905.
[4]凌云,高军,吴琳.时频空间域球面发散与吸收补偿[J].石油地球物理勘探,2005,40(2):176-182,18.
[5]焦湘恒译.真振幅恢复处理中最佳衰减曲线的确定方法[J].国外石油地球物理勘探,1988,4(4):8-17.
[6]凌云研究组.地震分辨率极限问题的研究[J].石油地球物理勘探,2004,39(4):435-442.
[7]姚振兴,高星,李维新.用于深度域地震剖面衰减与频散补偿的反Q滤波方法[J].地球物理学报,2003,46(2):229-230.
[9]朱平.江苏油田油气藏基本特征及其分类[J].断块油气田,2001,8(5):12-15.
[2]凌云研究组.叠前相对保持振幅、频率、相位和波形的地震数据处理与评价研究[J].石油地球物理勘探,2004,39(5):543-552.
[3]高军,凌云,周兴元,等.时频域球面发散和吸收补偿[J].石油地球物理勘探,1996,31(6):856-866,905.
[4]凌云,高军,吴琳.时频空间域球面发散与吸收补偿[J].石油地球物理勘探,2005,40(2):176-182,18.
[5]焦湘恒译.真振幅恢复处理中最佳衰减曲线的确定方法[J].国外石油地球物理勘探,1988,4(4):8-17.
[6]凌云研究组.地震分辨率极限问题的研究[J].石油地球物理勘探,2004,39(4):435-442.
[7]姚振兴,高星,李维新.用于深度域地震剖面衰减与频散补偿的反Q滤波方法[J].地球物理学报,2003,46(2):229-230.
[9]朱平.江苏油田油气藏基本特征及其分类[J].断块油气田,2001,8(5):12-15.
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