1887
Volume 37, Issue 7
  • ISSN: 0263-5046
  • E-ISSN: 1365-2397
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Abstract

Abstract

Recent advances in acquisition and processing technology are an enabler for improving the resolution of our seismic images. However, care must be taken to ensure that these imaging enhancements retain the amplitude fidelity necessary to allow for detailed Amplitude Variation with Offset/Direct Hydrocarbon Indicator (AVO/DHI) analysis, particularly in the marine deepwater setting. Acquisition, processing and interpretation all play important and interrelated roles in obtaining the maximum utility from the seismic data. In this paper we will discuss where resolution and data fidelity can be gained or lost, what factors primarily determine bandwidth recovery, and what decisions still need to be made in a somewhat subjective, target-oriented manner. Data from deepwater Guyana is used to demonstrate fundamental principles and the evolution of acquisition and processing workflows over the history of this project. Finally, we will suggest areas where additional improvements can be achieved in seismic field technologies, processing and interpretations workflows.

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/content/journals/10.3997/1365-2397.2019021
2019-07-01
2020-01-27
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References

  1. Carlson, D., Söllner, W., Tabti, H., Brox, E. and Widmaier, M.
    [2007]. Increased resolution of seismic data from a dual-sensor streamer cable. SEG Technical Program, Expanded Abstracts, 994–998.
    [Google Scholar]
  2. Jenkerson, M., Feltham, A., Henderson, N., Nechayuk, V., Girard, M. and Cozzens, A.J.
    [2018]. Geophysical characterization and reliability testing of the APS marine vibrator. SEG Technical Program, Expanded Abstracts, 116–120.
    [Google Scholar]
  3. Lazaratos, S. and Finn, C.
    [2004]. Deterministic spectral balancing for high-fidelity AVO. SEG Technical Program, Expanded Abstracts, 219–223.
    [Google Scholar]
  4. Lazaratos, S. and David, R.L.
    [2009]. Inversion by pre-migration spectral shaping. SEG Technical Program, Expanded Abstracts, 2383–2387.
    [Google Scholar]
  5. Norris, M. and Johnson, M.
    [2008]. Past Experience and near term prospects of sea floor geophysical observations: a major oil company perspective. SEG Technical Program, Expanded Abstracts, 3560–3563.
    [Google Scholar]
  6. Olofsson, B., Palermo, A. and Aharchaou, M.
    [2016]. A closer look at hydrophone-only versus two-component deghosting in deep-tow streamer data. SEG Technical Program, Expanded Abstracts, 5119–5123.
    [Google Scholar]
  7. Reilly, J.M.
    [2016]. Marine broadband technology: History and remaining challenges from an end-user perspective. The Leading Edge, 35 (4), 316–321.
    [Google Scholar]
  8. Soubaras, R. and Lafet, Y.
    [2011]. Variable-depth streamer acquisition: Broadband data for imaging and inversion. SEG Technical Program, Expanded Abstracts, 2364–2368.
    [Google Scholar]
  9. Trantham, E.C.
    [1994]. Controlled-phase acquisition and processing. SEG Technical Program, Expanded Abstracts, 890–894.
    [Google Scholar]
  10. Trantham, E.C. and He, K.
    [2017]. AVA friendly Q amplitude compensation. SEG Technical Program, Expanded Abstracts, 643–645.
    [Google Scholar]
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  • Article Type: Research Article
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