Interferometric interpolation of sparse marine data
Interferometric interpolation of sparse marine data
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DOI：
10.1111/1365-2478.12066
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发表时间：
2014-01
影响因子：
2.6
通讯作者：
S. Hanafy;G. Schuster
中科院分区：
文献类型：
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作者：
S. Hanafy;G. Schuster
本文给出了二维和三维海面地震剖面数据干涉插值的理论和数值结果。对于地震数据的内插，我们使用记录的绿色函数和基于模型的绿色函数的组合用于水层模型。合成（2D和3D）和现场（2D）结果表明，具有稀疏接收器间隔的地震数据可以使用数据中的多次波精确地内插到更小的间隔。记录的和基于模型的绿色函数的向上和向下分离有助于最大限度地减少虚拟炮点道集中的伪影。如果不可能进行上行和下行分离，则虚拟炮点道集中将生成明显的伪影。作为部分补救措施，我们迭代地使用具有内插数据的非平稳1D多通道匹配滤波器。结果表明，稀疏的海洋地震调查可以产生更多的信息反射，如果轨迹内插干涉。将我们的结果与f-k插值的结果进行比较表明，合成的例子给出了可比的结果，而现场的例子表明干涉方法具有更好的插值质量。
We present the theory and numerical results for interferometrically interpolating 2D and 3D marine surface seismic profiles data. For the interpolation of seismic data we use the combination of a recorded Green's function and a model‐based Green's function for a water‐layer model. Synthetic (2D and 3D) and field (2D) results show that the seismic data with sparse receiver intervals can be accurately interpolated to smaller intervals using multiples in the data. An up‐ and downgoing separation of both recorded and model‐based Green's functions can help in minimizing artefacts in a virtual shot gather. If the up‐ and downgoing separation is not possible, noticeable artefacts will be generated in the virtual shot gather. As a partial remedy we iteratively use a non‐stationary 1D multi‐channel matching filter with the interpolated data. Results suggest that a sparse marine seismic survey can yield more information about reflectors if traces are interpolated by interferometry. Comparing our results to those of f‐k interpolation shows that the synthetic example gives comparable results while the field example shows better interpolation quality for the interferometric method.