地震属性分析与应用ppt课件.ppt

地震属性分析与应用一、振幅统计类1、RMSAmplitude(root-mean-square)均方根振幅3、MaximumPeakAmplitude最大峰值振幅5、MaximumTroughAmplitude最大谷值振幅7、MaxmiumAbsoluteAmplitude最大绝对振幅9、TotalAmplitude振幅总量11、TotalEnergy总能量13、VarianceinAmplitude振幅变化15、KurtosisinAmplitude振幅峰态二、ComplexTraceStatistics（复地震道统计类）1、AverageReflectionStrength平均反射强度3、AverageInstantaneousFrequency平均瞬时频率三、SpectralStatistics（谱、能）谱统计1、EffectiveBandwidth有效带宽3、AverageZeroCrossingsFrequency平均过零点次数4、DominantFrequencySeries主频序列6、PeakSpectralFrequency峰值频率四、SequenceStatistics层序统计1、PercentofGreaterthanThreshold高于振幅门槛的百分比3、EnergyHalf-Time半能量时间4、SlopeatEnergyHalf-Time半能量时间处的斜率5、RatioofPositivetoNegativeSample正负样点比例五、CorrelationStatistics相关统计1、CovarianceCoefficienttoNextCDP
与下一个CDP的协方差4、CorrelationLength相关长度6、Karhunen-LoeveSignalComplexity
K－L信号复杂度在GeoProbe中，利用“三瞬”组合出了几种新的地震属性，即所谓的三重唱（Trio）、二重唱（Duo）、甜心（Sweetness
）以及盐丘检测（SaltDetect）。

Iamp&Freq&Phase：ThisattributevolumeisknownasTrio.TrioisacombinedvolumeofInstantaneousamplitude,frequency,andphasedisplayedbyassigningdifferentcolorstoeachattribute.Trioisusefulforhighlightinglateralstratigraphicanomalies.

Iamp&Freq：ThisattributevolumeisknownasDuo.DuoisacombineddisplayofInstantaneousAmplitudeandfrequencydisplayedbyassigningdifferentcolorstoeachattribute.Duoisusefulforhighlightinglateralstatigraphicanomalies.

Iamp/_Freq:ThisattributevolumeisknownasSweetness.
SweetnessisInstantaneousamplitudedividedbythesquarerootoffrequency.Sweetnessisusefulforhighlightingsandbearinggeobodiesinsiliciclasticformations.SaltDetect:ThisattributevolumeisknownasSaltDetect.Salt-Detectisacombinationofinstantaneousfrequencyandinstantaneousamplitude.ThesaltdetectvolumeistheFrequencyPeakOnlapcalculationdoneonaninstantaneousamplitudevolume.Itcanmaketopandbaseofsaltappearmorecontinuous,andthuseasiertoAutoPick.Apparentcompartmentalization
duetodestructive
interferencefromabove.
Lowfrequency,higheramplitudeareaswithfew
discontinuitiesshowthesweetspots.曲流河－三角洲沉积体系
在振幅属性透视体上响应