| L1-L2范数联合约束稀疏脉冲反演的应用 |
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| 引用本文： | 王宇,韩立国,周家雄,李海鹏.L1-L2范数联合约束稀疏脉冲反演的应用[J].地球科学,2009(5). |
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| 作者姓名： | 王宇 韩立国 周家雄 李海鹏 |
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| 作者单位： | 中海石油（中国）有限公司湛江分公司;吉林大学地球探测科学与技术学院; |
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| 基金项目： | 国家重大科技专项(No.2008ZX05023-004) |
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| 摘 要： | 稀疏脉冲反演实际上就是利用反褶积原理,从带有噪声的地震道中计算出具有稀疏分布特征的反射系数的振幅和时间.稀疏脉冲反演是非线性优化问题,通常都是把非线性优化问题转化为线性优化问题,然后用线性优化算法求解.以范数约束为基础,提出L1-L2范数联合约束求解的方法.该算法采用了目前国际流行的内点算法,与传统的优化算法相比,这种算法具有精度高,速度快的优点.通过研究人工模型和南海某油田实际数据,表明该算法的计算结果和测井记录吻合好,提高了地震分辨率,目的层段分辨率优于8m.利用反射系数剖面预测的储层厚度和开发井吻合很好,大大地降低了资源量计算的风险和油田开发的不确定性.
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| 关 键 词： | 反射系数反演 稀疏约束反演 内点算法 范数 |
Application of Combined Norm Constrained Sparseness Spike Inverse |
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| WANG Yu,HAN Li-guo,ZHOU Jia-xiong,LI Hai-peng .China National Offshore Oil Company Ltd-Zhanjiang,Zhanjiang,China .College of Geoexploration Science , Technology,Jilin University,Changchun,China.Application of Combined Norm Constrained Sparseness Spike Inverse[J].Earth Science-Journal of China University of Geosciences,2009(5). |
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| Authors: | WANG Yu HAN Li-guo ZHOU Jia-xiong LI Hai-peng China National Offshore Oil Company Ltd-Zhanjiang Zhanjiang China College of Geoexploration Science Technology Jilin University Changchun China |
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| Institution: | WANG Yu1,HAN Li-guo2,ZHOU Jia-xiong1,LI Hai-peng1 1.China National Offshore Oil Company Ltd-Zhanjiang,Zhanjiang524057,China 2.College of Geoexploration Science , Technology,Jilin University,Changchun130026,China |
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| Abstract: | Sparse-spike deconvolution is an inverse issue which estimates the time and the amplitudes of the sparseness reflectivity(spikes)from the noisy seismic traces.Sparseness spike inverse is highly non-linear optimization problem that can be solved using the L1-L2 norm constrained method introduced in this paper.This method is characterized with its application of the log-barrier interior point to solve the sparseness inverse problem which is higher in terms of resolution and faster than conventional optimizati... |
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| Keywords: | reflection coefficient inverse sparse-constrained inverse interior point algorithm norm |
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