OALib Journal期刊
ISSN: 2333-9721
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基于匹配追踪算法的频谱成像技术及其应用
Keywords: 匹配追踪,尺度参数,频谱成像,分辨率,火成岩储层
Abstract:
?本文研究了liu等提出的基于morlet小波的匹配追踪(mmp)算法,并将该算法中固定的尺度参数k改进为可灵活变化的自由尺度,形成了具有自由尺度参数的emmp算法,提高了算法的实用性和灵活性。理论模型验证及实际资料应用结果表明:①emmp算法较短时傅里叶变换(stft)、小波变换(wt)等传统方法,具有更高的时频分辨率;②emmp算法中的原子结构具有自由尺度,原子结构更加灵活,解决了mmp算法中难以确定最优尺度的问题,从而使时频原子库对非平稳地震信号具有更强的匹配能力;③利用emmp算法、mmp算法对qk凹陷zh区及jh区地震资料的频谱成像结果说明,emmp算法较mmp算法具有更高的横向分辨率,对应火成岩反射主频率的分频切片能清晰地刻画火成岩储层边界。
References
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[5] | mallatsgandzhangz.matchingpursuitswithtime-frequencydictionaries[j].ieeetransactionsonsignalprocessing.1993,41(12):3397-3415
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[6] | liujandmarfurtkj.matchingpursukdecompositionusingmorletwavelets.segtechnicalprogramexpandedabstracts,2005,24:786~789
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[7] | mitsuhatay,koichimandmasatom.magnetotellu-ricsurveyforexplorationofavolcanic-rockreservoirintheyuriharaoilandgasfield,japan[j].geophysicalprospecting.1999,47(3-4):195-218
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[8] | zhouxmandliwx.originoflatemesozoicigneousrocksinsoutheasternchina:implicationsforlithospheresubductionandunderplatingofmaficmagmas[j].tectonophysics.2000,326(3-4):269-287
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[9] | 张子枢,吴邦辉.国内外火山岩油气藏研究现状及勘探技术调研.天然气勘探与开发,1994,16(1):1~26
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[10] | castagnajp,sunsandsiegfriedrw.instantaneousspectralanalysis:detectionoflow-frequencyshadowsassociatedwithhydrocarbons.theleadingedge,2003,22(2):29~127
|
[11] | sinhas,routhps,annopdandcastagnajp.spectraldecompositionofseismicdatawithcontinuous-wavelettransforms.geophysics,2005,70(6):p19~p25
|
[12] | mariannerdandmattr.spectraldecomposition-transformmethodsandfluidandreservoirpredictioncase.expandedacstraccsof67theageinternatmtg,eage,2005
|
[13] | 蔡瑞.基于谱分解技术的缝洞型碳酸盐岩溶洞识别方法[j].石油勘探与开发.2005,32(2):82-85
|
[14] | suns,castagnajpandseigfriedrw.examplesofwavelettransformtimefrequencyanalysisindirecthydrocarbondetection.segtechnicalprogramexpandedabstrcccs,2002,21:457~460
|
[15] | liuj,wuy,handandlix.time-frequencydecompositionbasedonrickerwavelet.segtechnicalprogramexpandedacstreccs,2004,23:1937~1940
|
[16] | chakrabortyaandokayad.frequency-timedecompositionofseismicdatausingwavelet-basedmethods[j].geophysics.1995,60(6):1906-1915
|
[17] | 罗静兰,邵红梅,张成立.火山岩油气藏研究方法与勘探技术综述.石油学报,2003,24(1):32~38
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[18] | 陈业全,李宝刚,刘春晓.塔中地区火山岩预测的综合地球物理方法.山东东营:石油大学出版社,2004
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[19] | 文百红,杨辉,张研.中国典型火山岩油气藏地球物理特征及有利区带预测[j].中国石油勘探.2006,11(4):67-73
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