| 高精度相位相关速度分析技术在海上地震资料中的应用 |
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| 引用本文： | 张振波,李添才,朱江梅,杨薇,吴乔明,梁立锋.高精度相位相关速度分析技术在海上地震资料中的应用[J].世界地质,2013,32(2):354-358. |
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| 作者姓名： | 张振波 李添才 朱江梅 杨薇 吴乔明 梁立锋 |
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| 作者单位： | 1． 中海石油有限公司深圳分公司，广东深圳518067; 2． 吉林大学地球探测科学与技术学院，长春130021; 3． 中海油能源发展钻采工程研究院，广东湛江524057 |
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| 基金项目： | 国家科技重大专项子课题“南海北部中生界残留盆地特征及油气潜力课题” |
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| 摘 要： | 海上复杂构造区地震资料数据信噪比低，以叠加能量法为主的常规速度分析方法其速度分辨率和精度不能满足精细处理的要求。以南海东部某工区为靶区，对比研究了高精度相位相关速度分析法与常规叠加能量速度分析法，前者提高了速度谱在空间和时间上的精度，得到效果较好的地震叠加剖面，特别是低信噪比区域的成像精度有较大提高。
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| 关 键 词： | 地震 速度分析 相位相关 高精度 |
High-resolution velocity analysis by phase correlation statistics and its application in marine seismic data |
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| ZHANG Zhen-bo
,
LI Tian-cai
,
ZHU Jiang-mei
,
YANG Wei
,
WU Qiao-ming
,
LIANG Li-feng.High-resolution velocity analysis by phase correlation statistics and its application in marine seismic data[J].World Geology,2013,32(2):354-358. |
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| Authors: | ZHANG Zhen-bo LI Tian-cai ZHU Jiang-mei YANG Wei WU Qiao-ming LIANG Li-feng |
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| Institution: | 1． Shenzhen Branch of CNOOC Ltd. ，Shenzhen 518067，Guangdong，China; 2． College of Geo-exploration Science and Technology，Jilin University，Changchun 130021，China; 3． Energy Technology ＆ Services of CNOOC，Zhanjiang 524057，Guangdong，China |
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| Abstract: | The marine seismic data have low signal-to-noise ratio． It impacts the velocity resolution with conventional stack energy velocity analysis method far from meeting the requirements of the fine processing． At the working area of the South Sea，we compared the phase correlation statistics analysis velocity method with conventional stack energy velocity analysis，and used the former method to improve the accuracy of the velocity spectrum in space and time and acquired better effects of the seismic stack profile． Especially the imaging accuracy is improved greatly in low SNR region． |
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| Keywords: | seismic velocity analysis phase correlation high resolution |
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