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Abstract

Summary

The low-frequency sources developed in the last two decades such as Wolfspar® ( ) and the Tuned Pulse Source (TPS) (Ronen and Chelminski, 2017), have been designed to provide lower frequency data for Full Waveform Inversion (FWI). Others, such as the Gemini extended-frequency source ( ) are designed to give both low frequencies for FWI and higher frequencies for imaging. As they utilize larger chambers, the new sources require longer refill times and have other operational characteristics that affect survey design compared to traditional air-gun arrays. We describe how we iterate over survey design practices when working with low frequency sources in exploration settings. We illustrate this process using a recent sparse OBN survey in the Gulf of America (GoA).

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.2025647020
2025-11-24
2026-02-14

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References

  1. Bekara, M., and Hodges, E. (2024), Revisiting the Generation of Dither Times in the Context of Blended Marine Seismic Acquisition, 85th EAGE Annual Conference & Exhibition, 1 – 5.
     [Google Scholar]
  2. Brittan, J., P.Farmer, Bernitsas, N. and Dudley, T. (2020), Enhanced Low Frequency signal-to-noise characteristics of an airgun technology based source, Second EAGE Marine Acquisition Workshop, Volume 2024, p. 1–5.
     [Google Scholar]
  3. Cvetkovic, M., Calderón-Macías, C., Farmer, P., and Watts, G. (2014), Efficient numerical modelling and imaging practices for aiding marine acquisition design and interpretation, First Break, Volume 32, Issue 3.
     [Google Scholar]
  4. Dellinger, J. A., Ross, Meaux, D., Brenders, A., Gesoff, G., Etgen, J., Naranjo, J., G., Openshaw, and Harper, M., (2016), Wolfspar®, an “FWI-friendly” ultralow-frequency marine seismic source, SEG Technical Program Expanded Abstracts, 4891–4895.
     [Google Scholar]
  5. Huang, R., Brookes, D., and Cvetkovic, M., (2025), Ocean-bottom node survey shot geometry optimization – a FWI oriented study, SEG Technical Program Expanded Abstracts
     [Google Scholar]
/content/papers/10.3997/2214-4609.2025647020
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Exploration OBN Survey Design
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.2025647020
/content/papers/10.3997/2214-4609.2025647020
/content/papers/10.3997/2214-4609.2025647020
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