Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin
Thin-bedded beach-bar reservoirs in the continental faulted basins of eastern China hold significant potential, yet pose challenges for unconventional hydrocarbon development due to their thin-layer characteristics and heterogeneity. This study focuses on the Paleogene Lower E<sub>3</sub>...
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2025-05-01
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| author | Jing Wang Dayong Guan Xiaobo Huang Youbin He Hua Li Wei Xu Rui Liu Bin Feng |
| author_facet | Jing Wang Dayong Guan Xiaobo Huang Youbin He Hua Li Wei Xu Rui Liu Bin Feng |
| author_sort | Jing Wang |
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| description | Thin-bedded beach-bar reservoirs in the continental faulted basins of eastern China hold significant potential, yet pose challenges for unconventional hydrocarbon development due to their thin-layer characteristics and heterogeneity. This study focuses on the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-member in the HHK Depression, Bohai Bay Basin as a case study. We propose an innovative technical framework integrating Self-Organizing Map (SOM) multi-attribute optimization with seismic waveform inversion. Petrophysical analysis demonstrates that waveform-indicated inversion can detect 1.8–3.0 m thin sandstones, achieving a 90.2% mean match rate (95% CI: 87.5–92.7%, n = 12; bootstrap resampling) for training wells and 81.5% (95% CI: 76.8–85.3%, n = 11) for validation wells. By integrating SOM seismic attribute clustering with seismic waveform inversion, we were able to delineate microfacies boundaries with precision, enhancing the visibility of beach-bar sand body distributions. This methodology establishes a new paradigm for thin-bed sandstone prediction in low-well-control areas, providing critical support for geological interpretation and resource evaluation in complex depositional systems. |
| format | Article |
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| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
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| spelling | doaj-art-6e9cca526c6d4ef991fc4d35c4c8be8e2025-08-20T02:24:45ZengMDPI AGApplied Sciences2076-34172025-05-01159513410.3390/app15095134Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay BasinJing Wang0Dayong Guan1Xiaobo Huang2Youbin He3Hua Li4Wei Xu5Rui Liu6Bin Feng7School of Geosciences, Yangtze University, Wuhan 430100, ChinaCNOOC China Limited Tianjin Branch, Tianjin 300450, ChinaCNOOC China Limited Tianjin Branch, Tianjin 300450, ChinaSchool of Geosciences, Yangtze University, Wuhan 430100, ChinaSchool of Geosciences, Yangtze University, Wuhan 430100, ChinaCNOOC China Limited Tianjin Branch, Tianjin 300450, ChinaCNOOC China Limited Tianjin Branch, Tianjin 300450, ChinaSchool of Geosciences, Yangtze University, Wuhan 430100, ChinaThin-bedded beach-bar reservoirs in the continental faulted basins of eastern China hold significant potential, yet pose challenges for unconventional hydrocarbon development due to their thin-layer characteristics and heterogeneity. This study focuses on the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-member in the HHK Depression, Bohai Bay Basin as a case study. We propose an innovative technical framework integrating Self-Organizing Map (SOM) multi-attribute optimization with seismic waveform inversion. Petrophysical analysis demonstrates that waveform-indicated inversion can detect 1.8–3.0 m thin sandstones, achieving a 90.2% mean match rate (95% CI: 87.5–92.7%, n = 12; bootstrap resampling) for training wells and 81.5% (95% CI: 76.8–85.3%, n = 11) for validation wells. By integrating SOM seismic attribute clustering with seismic waveform inversion, we were able to delineate microfacies boundaries with precision, enhancing the visibility of beach-bar sand body distributions. This methodology establishes a new paradigm for thin-bed sandstone prediction in low-well-control areas, providing critical support for geological interpretation and resource evaluation in complex depositional systems.https://www.mdpi.com/2076-3417/15/9/5134unconventional hydrocarbon explorationthin-layered sand bodiesbeach-barself-organizing mapsseismic meme inversion |
| spellingShingle | Jing Wang Dayong Guan Xiaobo Huang Youbin He Hua Li Wei Xu Rui Liu Bin Feng Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin Applied Sciences unconventional hydrocarbon exploration thin-layered sand bodies beach-bar self-organizing maps seismic meme inversion |
| title | Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin |
| title_full | Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin |
| title_fullStr | Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin |
| title_full_unstemmed | Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin |
| title_short | Integrated SOM Multi-Attribute Optimization and Seismic Waveform Inversion for Thin Sand Body Characterization: A Case Study of the Paleogene Lower E<sub>3</sub>d<sub>2</sub> Sub-Member in the HHK Depression, Bohai Bay Basin |
| title_sort | integrated som multi attribute optimization and seismic waveform inversion for thin sand body characterization a case study of the paleogene lower e sub 3 sub d sub 2 sub sub member in the hhk depression bohai bay basin |
| topic | unconventional hydrocarbon exploration thin-layered sand bodies beach-bar self-organizing maps seismic meme inversion |
| url | https://www.mdpi.com/2076-3417/15/9/5134 |
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