Hilbert变换地震波主特征参数误差分析
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摘要
复数道分析技术出现使地震勘探由构造解释向构造岩性解释和储层预测跨进了一步。而主特征参数是指在时间频率域提取的可表征反射波主特征或频谱特征的地震动力学参数,是对三瞬参数处理的改进,突出反映岩性组合性质的特征值,本文在Hilbert变换提取三瞬参数的基础上,给出主特征参数的提取方法,并分析了影响主特征参数计算精度的因素和寻找提高计算精度的方法,达到增强该方法解决地震勘探中的地质问题的能力,对油气预测和油藏综合分析有较大的指导意义。
Complex trace analysis technique makes the seismic exploration go further from the structure interpretation to lithology interpretation and reservoir prediction.The main characteristic parameters refer to the reflective wave main characteristics extracted by time frequency or the frequency spectrum characteristics of the seismic dynamic parameters,which makes an improvement on the three instantaneous parameters that reflected the characteristics of lithologic combination property.On the basis of extracting the three instantaneous parameters using Hilbert transform,the extracting method of the main characteristic parameters are proposed.The factors of the calculation precision and the method of improving calculation precision are analyzed so as to enhance the ability of solving the seismic exploration problems,so the research will be of guiding significance in the oil-gas prediction or reservoir comprehensive analysis.
Complex trace analysis technique makes the seismic exploration go further from the structure interpretation to lithology interpretation and reservoir prediction.The main characteristic parameters refer to the reflective wave main characteristics extracted by time frequency or the frequency spectrum characteristics of the seismic dynamic parameters,which makes an improvement on the three instantaneous parameters that reflected the characteristics of lithologic combination property.On the basis of extracting the three instantaneous parameters using Hilbert transform,the extracting method of the main characteristic parameters are proposed.The factors of the calculation precision and the method of improving calculation precision are analyzed so as to enhance the ability of solving the seismic exploration problems,so the research will be of guiding significance in the oil-gas prediction or reservoir comprehensive analysis.
引文
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[2]吴俊林,何诚,徐敏,等.基于测井资料和地震属性分析地震相分布[J].工程地球物理学报,2010,7(6):732～735.
[3]贺振华,黄德济.复杂油气藏地震波场特征方法理论及应用[M].成都:四川科学技术出版社,1999.
[4]黄德济.地震波主特征参数的提取[J].石油地球物理勘探,1989,24(2):155～165.
[5]黄德济,赵宪生.时频域中主参数剖面的计算及应用[J].物探化探计算技术,1994,16(3):197～203.
[6]董文波,刘恩君,杨洪,等.地震属性技术在克拉玛依油田滑塌浊积岩圈闭勘探中的应用[J].工程地球物理学报,2011,8(1):87～90.
[7]李世雄,陈东方.信号瞬时参数计算方法评价[J].信号处理,2003,19(1):59～63.
[8]熊晓军,贺振华,黄德济.基于广义S变换的主频率分析[J].工程地球物理学报,2007,4(6):525～528.
[9]胡广书.数字信号处理—理论、算法与实现[M].北京:清华大学出版社,2003.
[10]Barnes E.Instantaneous spectral bandwidth anddominant frequency with applications to seismic re-flection data[J].Geophysics,1993,58(3):419～428.
[2]吴俊林,何诚,徐敏,等.基于测井资料和地震属性分析地震相分布[J].工程地球物理学报,2010,7(6):732～735.
[3]贺振华,黄德济.复杂油气藏地震波场特征方法理论及应用[M].成都:四川科学技术出版社,1999.
[4]黄德济.地震波主特征参数的提取[J].石油地球物理勘探,1989,24(2):155～165.
[5]黄德济,赵宪生.时频域中主参数剖面的计算及应用[J].物探化探计算技术,1994,16(3):197～203.
[6]董文波,刘恩君,杨洪,等.地震属性技术在克拉玛依油田滑塌浊积岩圈闭勘探中的应用[J].工程地球物理学报,2011,8(1):87～90.
[7]李世雄,陈东方.信号瞬时参数计算方法评价[J].信号处理,2003,19(1):59～63.
[8]熊晓军,贺振华,黄德济.基于广义S变换的主频率分析[J].工程地球物理学报,2007,4(6):525～528.
[9]胡广书.数字信号处理—理论、算法与实现[M].北京:清华大学出版社,2003.
[10]Barnes E.Instantaneous spectral bandwidth anddominant frequency with applications to seismic re-flection data[J].Geophysics,1993,58(3):419～428.
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