1887
Volume 41, Issue 9
  • ISSN: 0263-5046
  • E-ISSN: 1365-2397

Abstract

Abstract

The results of a seismic inversion method designed to screen for AVA anomalies in siliciclastic frontier basins is tested in a mature deep-water setting, the Mississippi Canyon, Gulf of Mexico. The method, which is founded on a universal rock property model for siliciclastic sediments, uses widely available partial stacks to invert seismic data for intercept and gradient impedances and generate a relative elastic inversion volume (rEEI), optimised for lithology and fluid detection. The results demonstrate the method is highly effective, but not infallible, at identifying hydrocarbons without any well data control in the simply buried Neogene and Paleogene (Tertiary) strata of the Mississippi Canyon. They further suggest that the use of the method in the early stages of prospecting in simply buried, siliciclastic basins globally, has the potential to identify opportunities that might otherwise be overlooked when interpreting only on the full stack.

EAGE Publications BV
Loading

Article metrics loading...

/content/journals/10.3997/1365-2397.fb2023076
2023-09-01
2026-02-10

  • From This Site

    /content/journals/10.3997/1365-2397.fb2023076
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Allan, J.R., Sun, S.Q. and Trice, R. [2006]. The deliberate search for stratigraphic and subtle combination traps: where are we now?Geological Society, London, Special Publications, 254, 57–103.
     [Google Scholar]
  2. Bouroullec, R., Weimer, P. and Serrano, O. [2017]. Petroleum geology of the Mississippi Canyon, Atwater Valley, western DeSoto Canyon, and western Lloyd Ridge protraction areas, northern deep-water Gulf of Mexico: Traps, reservoirs, and tectono-stratigraphic evolution.AAPG Bulletin, 101, 1073–1108
     [Google Scholar]
  3. Castagna, J.P. and Swan, H.W. [1997]. Principles of AVA cross-plotting: The Leading Edge, 16, 337–344.
     [Google Scholar]
  4. Connolly, P., 1999. Elastic impedance.The Leading Edge, 18, 438–452.
     [Google Scholar]
  5. Godo, T. [2019]. The Smackover–Norphlet petroleum system, deepwater Gulf of Mexico: oil fields, oil shows, and dry holes.Gulf Coast Association of Geological Societies, 104–152.
     [Google Scholar]
  6. Rutherford, S.R. and Williams, R.H. [1989]. Amplitude-versus-offset variations in gas sands.Geophysics, 54(6), 680–688.
     [Google Scholar]
  7. Tiwari, D., Mao, J. and Ma, X. [2018]. Refraction and reflection FWI for high-resolution velocity modelling in Mississippi Canyon.88th Annual International Meeting, SEG, Expanded Abstracts, 1288–1292.
     [Google Scholar]
  8. Went, D. [2021]. Practical application of global siliciclastic rock-property trends to AVA interpretation in frontier basins.The Leading Edge, 40, 454–459.
     [Google Scholar]
  9. Whitcombe, D.N., Connolly, P.A., Reagan, R.L. and Redshaw, T.C. [2002]. Extended elastic impedance for fluid and lithology prediction.Geophysics, 67(1), 63–67.
     [Google Scholar]
/content/journals/10.3997/1365-2397.fb2023076
Loading
Screening for AVA Anomalies in Siliciclastic Basins: Testing a Seismic Inversion Method in the Mississippi Canyon, Gulf of Mexico
First Break 41, 75 (2023); https://doi.org/10.3997/1365-2397.fb2023076
/content/journals/10.3997/1365-2397.fb2023076
/content/journals/10.3997/1365-2397.fb2023076
Loading

Data & Media loading...

  • Article Type: Research Article

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error