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基于贝叶斯理论的薄层反演方法

Keywords: 地震波阻抗反演,贝叶斯理论,砂泥岩互层,迭代,稳定性,反演精度

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Abstract:

?大量实验表明,地球物理数据符合或近似符合高斯分布,因此可将高斯分布和贝叶斯原理结合并应用于地球物理反演。本文在无噪假设条件下推导出具有明确物理意义的迭代反演算法,基于贝叶斯原理重新推导了迭代反演公式。经3层和12层砂泥岩互层层状介质模型试算与实际应用,其结果均表明,将基于贝叶斯理论的波阻抗反演算法与多道反演思路相结合,具有反演精度高和稳定性好的特点,可明显降低噪声影响,而且运算简单,可有效识别薄层。

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[8]  李宏兵.具有剔除噪音功能的多道广义线性反演.石油物探,1996,35(4);11-17lihong-bing.generalizedmulti-tracelinearinversionwiththeremovalofnoise.gpp,1996,35(4):11-17
[9]  林小竹,杨慧珠,汤磊.无井多道反演[j].石油地球物理勘探.1998,33(4):448-452??浏览
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[12]  yuansan-yi,wangshang-xuandtiannan.swarmintelligenceoptimizationanditsapplicationingeo-physicaldatainversion[j].appliedgeophysics.2009,6(2):166-174
[13]  杨文采.地球物理反演的遗传算法[j].石油物探.1995,34(1):116-122
[14]  陈双全,王尚旭,手敏,张永刚.地震波阻抗反演的蚁群算法实现.石油物探,2005,44(6);551-553chenshuang-quan,wangshang-xu,jiminandzhangyong-gang.theantcolonyoptimizationforthescis-micimpedanceinversion.gpp,2005,44(6):551-553
[15]  黄捍东,张如伟,于茜.基于蚁群算法的层速度反演方法.石油地球物理勘探,2008,43(4);422-424huanghan-dong,zhangru-weiandyuqian.inver-lionmethodofintervalvelocitybasedonantcolonyalgorithm.ogp,2008,43(4);422-424
[16]  姚姚.地球物理非线性反演模拟退火法的改进.地球物理学报,1995,38(5);643-650yaoyao.improvementonsimulatedannealingalgo-rithmofgeophysicalnonlinearinversion.chinesejournalofcueophysics,1995,38(5):643-650

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