Seismic data regularization and interpolation approach based on compressive sensing principle
Received date: 2024-03-07
Online published: 2025-03-13
Copyright
Seismic samples are typically designed on a perfect Cartesian grid. However, field constructions can disrupt the sampling geometry, resulting in the samples missing or off-the-grid. Our research goals are to simultaneously regularize off-the-grid samples and interpolate missing data for 3D seismic data under the framework of compressive sensing, which combines a 3D curvelet transform, a fast iterative threshold algorithm, and a merging sampling operator. The new sampling operator combines a binary mask with a barycentric Lagrangian operator for simultaneous interpolation and regularization. The fast iterative threshold algorithm is helpful to improve the interpolation accuracy and efficiency while solving the ill-posed problem. Finally, we demonstrate the effectiveness of the proposed approach by simulated and field datasets.
LieQian DONG , Heng ZHOU , YunYun SANG , QingQin ZENG , HongGuang FAN , YongQing TIAN . Seismic data regularization and interpolation approach based on compressive sensing principle[J]. Progress in Geophysics, 2025 , 40(1) : 276 -284 . DOI: 10.6038/pg2025HH0428
图1 三维模拟数据(a)规则采样数据;(b)非规则欠采样数据. Fig 1 3D simulated data (a) Raw data; (b) Irregularly decimated data. |
图2 三维模拟数据重构结果对比(a)mask采样算子重构及(b)重构误差;(c)融合采样算子重构及(d)重构误差. Fig 2 Reconstruction result comparisons of 3D simulated data (a) Reconstruction result by using mask sampling operator and (b) reconstruction error; (c) Reconstruction result by using merging sampling operator and (d) reconstruction error. |
图3 三维模拟数据时间切片对比图(a)原始数据;(b)非规则欠采样;(c)mask采样算子重构及(d)重构误差;(e)融合采样算子重构及(f)重构误差. Fig 3 Time slice comparisons of 3D simulated data (a) Raw data; (b) Irregularly decimated data; (c) Reconstruction result by using mask sampling operator and (d) reconstruction error; (e) Reconstruction result by using merging sampling operator and (f) reconstruction error. |
图5 (a) 实际数据采样点分布图;(b)图(a)红框区域采样点分布放大图Fig 5 (a) Sampling point distribution map of field data; (b) Enlarged view of rectangle area in Fig.(a) |
图6 实际数据重构结果对比(a)原始采集的数据;(b)mask采样算子重构结果;(c)融合采样算子重构结果. Fig 6 Reconstruction result comparisons of field data (a) Raw data; (b) Reconstruction result by using mask sampling operator; (c) Reconstruction result by using merging sampling operator. |
感谢两位匿名审稿专家给予的宝贵修改建议,感谢哈尔滨工业大学于四伟教授对本文方法实现给与的建设性建议和帮助.
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Li C B, Mosher C C, Kaplan S T. 2012. Interpolated compressive sensing for seismic data reconstruction. //SEG Technical Program Expanded Abstracts 2012. SEG, 1 -6.
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