The impact of illumination for seismic signatures of fluid pipe structures: insights from point-spread-function based seismic modeling.
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| Title: | The impact of illumination for seismic signatures of fluid pipe structures: insights from point-spread-function based seismic modeling. |
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| Authors: | Cui, Zhihua1,2 (AUTHOR) ZhihuaCuiNB@outlook.com, Tan, Feng3,4 (AUTHOR) |
| Source: | Acta Geophysica. Apr2026, Vol. 74 Issue 2, p1-22. 22p. |
| Subject Terms: | *Imaging systems in seismology, *Seismic reflection method, *Seismic response, *Structural geology, *Seismic surveys |
| Abstract: | Fluid escape pipes are critical irregular 3D structures with complex internal conduits and typically identified from high-resolution 3D seismic volumes. Their significant association with various environmental and geological aspects raises broad concern, yet they are constrained by geophysical limits, resulting in compromised imaging quality, particularly for their internal mixture complexity. Previous seismic findings have struggled to obtain clear imaging of the internal structure and capture distinct seismic signatures, particularly affected by varying illumination, thereby resulting in poorly constrained seismic interpretation. To improve the geological understanding, we apply point-spread function (PSF)-based convolution modeling to simulate fluid pipe structures containing internal mixtures, drawing insights from exemplary seismic data through reasoned interpretation, analogs, and properties. This way can help produce a geology–seismic bridge that allows to explore how seismic signatures are controlled by various illumination-related scenarios (high, intermediate, low) in seismic reflection data. The modeling results demonstrate that: (1) Imaging quality within internal structural mixtures is poor under interpretation-driven velocity models due to inadequate illumination of complex internal features; (2) The adverse impact of insufficient maximum-dip illumination intensifies progressively with decreasing dip angle, generating significant uncertainties, particularly at low angles (e.g., 10°); (3) Limited illumination induces substantial imaging artifacts in internal structures (e.g., discontinuities, disruptions, layer merging, pseudo-stratified layering), showing strong correlation with severely constrained acquisition geometries; (4) Enhanced maximum-dip illumination via optimized industrial-scale acquisition is recommended to improve detailed imaging of this complex structural setting. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| Abstract: | Fluid escape pipes are critical irregular 3D structures with complex internal conduits and typically identified from high-resolution 3D seismic volumes. Their significant association with various environmental and geological aspects raises broad concern, yet they are constrained by geophysical limits, resulting in compromised imaging quality, particularly for their internal mixture complexity. Previous seismic findings have struggled to obtain clear imaging of the internal structure and capture distinct seismic signatures, particularly affected by varying illumination, thereby resulting in poorly constrained seismic interpretation. To improve the geological understanding, we apply point-spread function (PSF)-based convolution modeling to simulate fluid pipe structures containing internal mixtures, drawing insights from exemplary seismic data through reasoned interpretation, analogs, and properties. This way can help produce a geology–seismic bridge that allows to explore how seismic signatures are controlled by various illumination-related scenarios (high, intermediate, low) in seismic reflection data. The modeling results demonstrate that: (1) Imaging quality within internal structural mixtures is poor under interpretation-driven velocity models due to inadequate illumination of complex internal features; (2) The adverse impact of insufficient maximum-dip illumination intensifies progressively with decreasing dip angle, generating significant uncertainties, particularly at low angles (e.g., 10°); (3) Limited illumination induces substantial imaging artifacts in internal structures (e.g., discontinuities, disruptions, layer merging, pseudo-stratified layering), showing strong correlation with severely constrained acquisition geometries; (4) Enhanced maximum-dip illumination via optimized industrial-scale acquisition is recommended to improve detailed imaging of this complex structural setting. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 18956572 |
| DOI: | 10.1007/s11600-025-01780-6 |
