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碳酸盐岩区单程波方程保幅叠前深度偏移

Keywords: 单程波方程,频率—空间域有限差分,保幅偏移,碳酸盐岩,反射系数

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Abstract:

?本文首先细致分析了保幅偏移方程各项的物理含义;然后介绍了理论反射系数的计算以及近似表达式;通过简单模型的计算,对比了成像结果与理论反射系数间的关系;最后将单程波保幅偏移技术应用于中国南方a探区碳酸盐岩地震资料的处理,实际处理结果表明本文方法对碳酸盐岩区地震资料的深层能量进行了有效补偿,中、深层信息更加丰富,可为avo异常测定提供高质量的cip道集。

References

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[7]  张宇.振幅保真的单程波方程偏移理论[j].地球物理学报.2006,49(5):1410-1430
[8]  zhangh,mcmechangaandsteinj.trueampli-tudewave-equationmigration.segtechnicalpro-gramexpandedabstracts,2003,22:913-916
[9]  xus,chaurish,lambareg,noblem.common-anglemigration;astrategyforimagingcomplexmedia[j].geophysics.2001,66(6):1877-1894
[10]  叶月明,李振春,全兆岐,曹文俊.双复杂介质条件下频率一空间域有限差分法保幅偏移.地球物理学报,2008,51(5):1511-1519yeyue-ming,lizhen-chumtongzhao-qi,caowen-jun.preservedamplitudemigrationwithdual-complexity.chinesejgeophys(inchinese),2008,51(5):1511-1519
[11]  程玖兵,王华忠,马在田.带误差补偿的有限差分叠前深度偏移方法.石油地球物理勘探,2001,36(4);408-413chenjiu-bing,wanghua-thongandmazai-tian.fi-nite-differencepre-stackdepthmigrationwitherrorscompensation.ogp,2001,36(4);408-413
[12]  崔兴福,张关泉,吴雅丽.三维非均匀介质中真振幅地震偏移算子研究.地球物理学报,2004,47(3);509-513cuixing-fu,ghangguan-quan,wuya-li.trueam-plitudeseismicmigrationoperatorin3-dheterogene-ousmedium.chinesejgeophys(inchinese),2004,47(3):509-513
[13]  刘定进,印兴耀.傅立叶有限差分法保幅叠前深度偏移方法.地球物理学报,2007,50(1);268-276liuding-jin,yinxing-yao..amethodoffouricrti-nite-differencepreservedamplitudeprestackdepthmigration.chinesejgeophysis(inchinese),2007,50(1):268-276
[14]  张关泉.波动方程的上行波和下行波的藕合方程组.应用数学学报,1993,16(2);251-263zhangguan-quan.systemofcoupledequationsfordowngoingandupcomingwaves.japplmath(inchinese),1993,16(2):251-263
[15]  akikandrichardspg.quantitativeseismology:theoryandmethods.whfrccmanandcompany,sanfrancisco,1980

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