滤波技术在煤田断层精细检测中的应用
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摘要
中值滤波技术可以有效地去除随机噪声,增强水平同相轴的连续性,但其未考虑地层倾角的变化。断层/边缘增强滤波技术考虑到地层倾角的变化因素,能够突出细微差别,改善低信噪比资料,显著提高地震剖面质量。实践证明,断层/边缘增强滤波技术能更加突出地层接触关系,可以有效提高小断层的解释精度,提高煤田三维地震勘探资料解释的精度和准确性。
Median filter technology application not only can effectively remove noise,but also enhances the coherent axis,but did not take into account the change of the stratigraphic dip.And fault enhancement filter technology and edge enhancement filtering technology based on the consideration of change of dip stand out the subtle nuances,improve low SNR,and significantly improve the quality of seismic profiles.Practice proves that the filter technology more prominent stratigraphic contact relationship,can effectively improve the interpretation accuracy of small faults,have improved accuracy that the 3D seismic prospecting of coal field data explains greatly.
Median filter technology application not only can effectively remove noise,but also enhances the coherent axis,but did not take into account the change of the stratigraphic dip.And fault enhancement filter technology and edge enhancement filtering technology based on the consideration of change of dip stand out the subtle nuances,improve low SNR,and significantly improve the quality of seismic profiles.Practice proves that the filter technology more prominent stratigraphic contact relationship,can effectively improve the interpretation accuracy of small faults,have improved accuracy that the 3D seismic prospecting of coal field data explains greatly.
引文
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[16]SUBJECT:faults and fractures.dGB,2005.
[17]FRISO BROUWER.Fault enhancement filter.dGB,2005.
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[2]张延玲,杨长春,贾曙光.地震属性技术的研究与应用[J].地球物理学进展,2005,20(4):1129.
[3]郭栋.地震属性分析及其在资料解释中的应用[J].油气地球物理,2004,2(3):46.
[4]李坦,殷小舟.地震属性的地质意义分析[J].复杂油气藏,2009,2(3):5.
[5]石瑛,王赟,芦俊.煤田地震多属性分析技术的应用[J].煤炭学报,2008,33(12):1397.
[6]鲍祥生,尹成,田继东,等.中值滤波的一种快速算法[J].石油物探.2005,44(4):325.
[7]孙夕平,杜世通,汤磊.相干增强各向异性扩散滤波技术[J].石油地球物理勘探,2004,39(6):651.
[8]陈凤,李金宗,李冬冬.提高地震图像信噪比的一致增强性扩散方法应用研究[J].电子学报,2004,32(11):1885.
[9]王春艳.地震图像序列非线性相干增强扩散滤波技术研究[D].大庆:大庆石油学院,2008.
[10]崔若飞,李晋平,庞留彦,等.地震属性技术在煤田地震勘探中的应用研究[J].中国矿业大学学报,2002,31(3):267.
[11]崔若飞,武旭仁,陈同俊.煤矿地震数据管理系统的开发[J].地球物理学进展,2005,20(2):374.
[12]崔若飞,陈同俊.煤矿三维地震数据动态解释系统[M].徐州:中国矿业大学出版社,2008.
[13]PAUL DE GROOT,BERT BRIL.The open sourcemodel in geosciences and opendTect in particular.dGB,2005.
[14]PAUL DE GROOT,FRED AMINZADEH.Thchni-cal challenges in the petroleum industry and futuretrends in improved oil recovery.dGB,2005.
[15]JAMADA EL OULA.Artificial neural networks.dGB,2005.
[16]SUBJECT:faults and fractures.dGB,2005.
[17]FRISO BROUWER.Fault enhancement filter.dGB,2005.
[18]PAULl DE GROOT,LIGTENBERG,HEGGLAND,etal.Selecting and combining attributes to enhance theobjection of seismic objects.63nd[J].EAGE confer-ence,Amsterdam.2001:11.
[19]PAUL DE GROOT.Advanced seismic interpretationtechniques in opendTect[J].Oil and gas geoph ysics-technology,2008:42.
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