各项异性叠前时间偏移在深地震反射剖面中的应用
|
摘要
实际地下介质广泛存在各向异性,应用常规的各向同性的偏移方法来进行各向异性介质的偏移处理会产生误差,不利于提高成像效果和精度,最终影响地质解释。针对HB地区深反射地震资料的特点,采取了高精度静校正、叠前保幅去噪和子波一致性处理等一系列有针对性的处理技术,提高了资料的信噪比及成像质量,在此基础上开展各项异性叠前时间偏移技术的应用研究,取得了良好的应用效果,为后续的地震解释、地质研究提供比较真实可靠的证据。
Since the anisotropy exists extensively in the real underground medium,it will produce errors when using routine method to process the anisotropy migration,which can not improve the imaging effect and precision.Thus,the geological interpretation will be influenced.According to the features of deep reflection seismic data in the HB region,it has taken series of targeted processing methods to improve noise-signal ratio of seismic data and imaging quality,such as high precision statics,prestack amplitude-preserved noise attenuation and wavelet coherence processing and so on.On that base,it also has taken the applying research on anisotropy prestack time migration,which has achieved good application effect and provided true and reliable evidence for further seismic interpretation and geological research.
Since the anisotropy exists extensively in the real underground medium,it will produce errors when using routine method to process the anisotropy migration,which can not improve the imaging effect and precision.Thus,the geological interpretation will be influenced.According to the features of deep reflection seismic data in the HB region,it has taken series of targeted processing methods to improve noise-signal ratio of seismic data and imaging quality,such as high precision statics,prestack amplitude-preserved noise attenuation and wavelet coherence processing and so on.On that base,it also has taken the applying research on anisotropy prestack time migration,which has achieved good application effect and provided true and reliable evidence for further seismic interpretation and geological research.
引文
[1]万志超,滕吉文,张秉明.各向异性介质中地震波速度分析的研究现状[J].地球物理学进展,1997,12(3):35~44.
[2]王海燕,高锐,卢占武,等.地球深部探测的先锋——深地震反射方法的发展与应用[J].勘探地球物理进展,2006,29(1):7~19.
[3]徐明才,高景华.深部地震资料的处理和解释方法[J].物探化探计算技术,1999,21(2):151~158.
[4]渥.伊尔马兹.地震资料分析[M].北京:石油工业出版社,2006.
[5]万欢,李添才,方中于,等.各向异性叠前时间偏移在复杂断块中的应用[J].地球物理学进展,2011,26(1):207~213.
[6]高银波,徐右平,梁宏.复杂断块叠前时间偏移技术应用实例研究[J].物探化探计算技术,2010,32(4):100l~174.
[7]秦亚玲,王彦春,秦广胜,等.各向异性叠前时间偏移——以东濮凹陷为例[J].地球物理学进展.2010,25(3):926~931.
[8]赵玲芝,王克斌,戴晓云.VTI各向异性叠前深度偏移技术应用研究——以JZ工区三维地震资料处理为例[J].石油物探,2011,50(2):201~205.
[9]刘金平,杨懋新,孙长赞,等.城区高密度三维地震资料保真处理技术及其效果[J].科学技术与工程,2010,29(10):1671~1815.
[10]黄忠贤.华北地区地壳上地幔速度各向异性研究[J].地球物理学报,2011,54(3):681~691.
[11]张军华,吕宁,田连玉,等.地震资料去噪方法、技术综合评述[J].地球物理学进展,2005,21(2):546~553.
[12]熊翥.复杂地区地震数据处理思路[M].北京:石油工业出版社,2002.
[2]王海燕,高锐,卢占武,等.地球深部探测的先锋——深地震反射方法的发展与应用[J].勘探地球物理进展,2006,29(1):7~19.
[3]徐明才,高景华.深部地震资料的处理和解释方法[J].物探化探计算技术,1999,21(2):151~158.
[4]渥.伊尔马兹.地震资料分析[M].北京:石油工业出版社,2006.
[5]万欢,李添才,方中于,等.各向异性叠前时间偏移在复杂断块中的应用[J].地球物理学进展,2011,26(1):207~213.
[6]高银波,徐右平,梁宏.复杂断块叠前时间偏移技术应用实例研究[J].物探化探计算技术,2010,32(4):100l~174.
[7]秦亚玲,王彦春,秦广胜,等.各向异性叠前时间偏移——以东濮凹陷为例[J].地球物理学进展.2010,25(3):926~931.
[8]赵玲芝,王克斌,戴晓云.VTI各向异性叠前深度偏移技术应用研究——以JZ工区三维地震资料处理为例[J].石油物探,2011,50(2):201~205.
[9]刘金平,杨懋新,孙长赞,等.城区高密度三维地震资料保真处理技术及其效果[J].科学技术与工程,2010,29(10):1671~1815.
[10]黄忠贤.华北地区地壳上地幔速度各向异性研究[J].地球物理学报,2011,54(3):681~691.
[11]张军华,吕宁,田连玉,等.地震资料去噪方法、技术综合评述[J].地球物理学进展,2005,21(2):546~553.
[12]熊翥.复杂地区地震数据处理思路[M].北京:石油工业出版社,2002.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心