1887

Abstract

Summary

Hydrocarbon exploration in Bohai Bay Basin, eastern China has been extended to deep buried hills in recent years. The depth of the targeting zone and the complex faulted geology in this region, together with substantial velocity heterogeneity and azimuthal anisotropy, poses great challenges to seismic processing. The vintage 3D streamer data is not sufficient to delineate weathered crust reservoir on the top of buried hills, internal fractures inside buried hills, as well as volcanic structure and facies zones. Therefore, a full-azimuth and high-fold ocean bottom node (OBN) seismic survey was acquired, and advanced processing technologies, including tilted orthorhombic (TORT) model building, Dynamic Resolution TLFWI (DR-TLFWI) and TORT Q-Kirchhoff migration and TORT Q-reverse time migration (RTM), were applied to achieve a more accurate image around and inside the buried hills. The inverted high-resolution velocity model successfully depicts the high velocity contrast around the target area and has good match with the well sonic. The final image shows substantial uplift compared to the vintage result, which facilitates further interpretation around the volcanic structure.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.202510496
2025-06-02
2026-04-21

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References

  1. Hou, M., Cao, H., Li, H., Chen, A., Wei, A., Chen, Y., Wang, Y., Zhou, X., and Ye, T. [2019] Characteristics and controlling factors of deep buried-hill reservoirs in the BZ19–6 structural belt, Bohai sea area. Natural Gas Industry B, 6(4), 305–316.
     [Google Scholar]
  2. Peng, J., Wei, A., Sun, Z., Chen, X., and Zhao, D. [2018] Sinistral strike slip of the Zhangjiakou-Penglai Fault and its control on hydrocarbon accumulation in the northeast of Shaleitian Bulge, Bohai Bay Basin, East China. Petroleum Exploration and Development, 45(2), 215–226.
     [Google Scholar]
  3. Wang, M., Xie, Y., Deng, P., Chen, Y., Cai, J. and LiX. [2023] Dynamic resolution TLFWI for velocity model building beyond the reach of diving waves. 84th EAGE Annual Conference & Exhibition, Expanded Abstracts, 1–5.
     [Google Scholar]
  4. Xie, Y., Sun, J., ZhangY. and Zhou, J. [2015] Compensating for visco-acoustic effects in TTI reverse time migration. 85th SEG Annual International Meeting, Expanded Abstracts, 3996–4001.
     [Google Scholar]
  5. Zhang, J., Wang, Z., Chen, Y., Guo, Y., Fong, Z. K., Li, J., and Wu, Y. [2021] The first high-end OBC imaging for fractured basement in Bohai Bay, China. SEG Technical Program, Expanded Abstracts, 2545–2549.
     [Google Scholar]
  6. Zhang, Z., Mei, J., Lin, F., Huang, R., and Wang, P. [2018] Correcting for salt misinterpretation with full-waveform inversion. SEG Technical Program, Expanded Abstracts, 1143–1147.
     [Google Scholar]
/content/papers/10.3997/2214-4609.202510496
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Deep Buried Hill Imaging in Bohai Bay Basin: A Case Study
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.202510496
/content/papers/10.3997/2214-4609.202510496
/content/papers/10.3997/2214-4609.202510496
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