1887

Abstract

Summary

“Exploration on the Tarija Basin in South America is mainly focused on the deep Devonian-age Huamampampa and Santa Rosa formations, where structural hydrocarbon traps of hanging wall anticlines formed due to continued thrusting. The seismic surveys conducted in this area generally provide seismic records with poor signal-to-noise ratio that subsequently result in noisy stack sections that are difficult to interpret and to jump-correlate. Hence mapping the thrust anticline core with a satisfactory degree of confidence is challenging and the economic risk related to misinterpreting the structural setting is unacceptable. However, that risk can be reduced by complementing the exploration program with other geophysical data that do not suffer the same limitations in terms of illumination and SNR that are affecting the seismic data.

A magnetotelluric acquisition and modeling campaign, was carried out with the objective to improve the imaging of the Paleozoic section and map the top of the Huamampampa sandstone reservoir. The recorded data were modeled and inverted following an iterative approach, starting from unconstrained inversion and then deriving the geological constrains that were included in the subsequent inversion step. The geological interpretation of the final magnetotelluric inversion results allowed to better image the expected complexity of the structures.”

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/content/papers/10.3997/2214-4609.201801400
2018-06-11
2024-03-28
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References

  1. Blangy, J.P.
    [2002] Target-oriented, wide-patch, 3-D seismic yields trap definition and exploration success in the sub-Andean thrust belt Devonian gas play, Tarija Basin, Argentina, The Leading Edge, 21(02)
    [Google Scholar]
  2. Nicanoff, L et al.
    [2002] A Case Study for Imaging Complex Structures in the Andean Thrust Belt of Bolivia. SEG International Exposition and 72nd Annual Meeting.
    [Google Scholar]
  3. Tilander, N.G.
    [1995], Processing of seismic data from overthrust areas in Latin America, The Leading Edge, 14(06)
    [Google Scholar]
  4. Tartaras, E. et al.
    [2011] Multi-property earth model building through data integration for improved subsurface imaging, First Break, 29(4), 83–88.
    [Google Scholar]
  5. Zerilli, A. et al.
    [2012] Resolving Complex Overthrust Features Using Magnetotellurics — The Bolivian Foothills Case Study. First EAGE/ACGGP Latin American Geophysics Workshop
    [Google Scholar]
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