| 利用L1范数求取道间时差技术进行地震道插值 |
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| 引用本文： | 吕小伟,陈小宏,刁顺.利用L1范数求取道间时差技术进行地震道插值[J].石油地球物理勘探,2003,38(6):618-622. |
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| 作者姓名： | 吕小伟 陈小宏 刁顺 |
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| 作者单位： | 石油大学物探重点实验室 北京
(吕小伟，陈小宏)，石油大学物探重点实验室 北京(刁顺) |
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| 摘 要： | 本文采用L1范数求取道间时差技术求出剖面上每一样点的时间倾角，然后逐道进行倾角插值。当出现较多空道时，利用L1范数极小准则找出差值道集中绝对值最小点对应的移动时间，求出时间倾角进行插值。此法既能适应线性同相轴插值、非线性同相轴插值，又能适应等道距、非等道距插值。通过对合成记录及实际记录的处理表明，此法具有比常规道内插方法速度快、精度高、适应性强等优点。
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| 关 键 词： | L1范数 道间时差 非线性插值 地震道插值 地震数据处理 地震勘探 |
Seismic trace interpolation by using L_1 norm to calculate time - difference between traces. |
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| Lii Xiaowei,Key Laboratory of Geophysical Explo- ration,CNPC,University of Petroleum,Beijing City,China.Seismic trace interpolation by using L_1 norm to calculate time - difference between traces.[J].Oil Geophysical Prospecting,2003,38(6):618-622. |
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| Authors: | Lii Xiaowei Key Laboratory of Geophysical Explo- ration CNPC University of Petroleum Beijing City China |
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| Affiliation: | Lii Xiaowei,Key Laboratory of Geophysical Explo- ration,CNPC,University of Petroleum,Beijing City,102200,China |
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| Abstract: | The paper adopted method using LI norm to calculate the time-difference to compute time-dip at each point of section and carry out dip interpolation trace by trace. When large gap exists,the shift time corresponding to point having minimum absolute value among differential-value gathers is found ac-cording to minimum standard of L1 norm,then the time-dip is calculated and interpolation is carried out. The method is suitable to both linear or non-linear interpolation and event interpolation with e-qual or unequal group interval. The synthetic and real data processing showed that comparing with ordinary trace interpolation method the method has the advantages of high-speed, high-precision and good suitability. |
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| Keywords: | L_1 norm time-difference between traces time-dip non-linear interpolation |
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