کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8915383 | 1641098 | 2018 | 67 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deblending of simultaneous-source data using iterative seislet frame thresholding based on a robust slope estimation
ترجمه فارسی عنوان
تجزیه و تحلیل داده های منبع همزمان با استفاده از آستانه فریم حرارتی تکراری بر اساس یک برآورد شیب قوی
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کلمات کلیدی
معکوس تکراری، منبع همزمان، لغو کردن فریم ورق برآورد شیب،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
چکیده انگلیسی
In a simultaneous source survey, no limitation is required for the shot scheduling of nearby sources and thus a huge acquisition efficiency can be obtained but at the same time making the recorded seismic data contaminated by strong blending interference. In this paper, we propose a multi-dip seislet frame based sparse inversion algorithm to iteratively separate simultaneous sources. We overcome two inherent drawbacks of traditional seislet transform. For the multi-dip problem, we propose to apply a multi-dip seislet frame thresholding strategy instead of the traditional seislet transform for deblending simultaneous-source data that contains multiple dips, e.g., containing multiple reflections. The multi-dip seislet frame strategy solves the conflicting dip problem that degrades the performance of the traditional seislet transform. For the noise issue, we propose to use a robust dip estimation algorithm that is based on velocity-slope transformation. Instead of calculating the local slope directly using the plane-wave destruction (PWD) based method, we first apply NMO-based velocity analysis and obtain NMO velocities for multi-dip components that correspond to multiples of different orders, then a fairly accurate slope estimation can be obtained using the velocity-slope conversion equation. An iterative deblending framework is given and validated through a comprehensive analysis over both numerical synthetic and field data examples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Applied Geophysics - Volume 153, June 2018, Pages 17-37
Journal: Journal of Applied Geophysics - Volume 153, June 2018, Pages 17-37
نویسندگان
Yatong Zhou, Chunying Han, Yue Chi,