3D Magneto‐tellurics for imaging a Devonian reservoir (Huamampampa) in the southern Sub‐Andean basin of Bolivia

Ravaut, P.; Russell, S. M.; Mallard, Philippe; Ballard, Jean-François; Watts, Don; Mackie, Randy; Hallinan, S.

doi:10.1190/1.1817205

Cited by 4 publications

(1 citation statement)

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“…Previously, interpretations based solely on 2-D interpretations could not adequately model the complex structure. A good example of this is given by Ravaut et al (2002), where integration of 2-D and 3-D MT modelling with geologic constraints provided an interpretation of steeply-dipping beds in the Bolivian overthrust (see Figure 5). …”

Section: Data Processing and Interpretationmentioning

confidence: 96%

Mining, Environmental, Petroleum, and Engineering Industry Applications of Electromagnetic Techniques in Geophysics

Sheard

Ritchie²,

Christopherson³

et al. 2005

Surv Geophys

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Electromagnetic (EM) techniques are extremely important as a direct detection geophysical tool utilized in the base metal industry. They were developed in countries such as Canada, whose thin conductive weathering overburden did not hamper the penetration of EM signals and enabled exploration to depths on the order of 300 m. As a result, EM techniques were used widely in North America and Scandinavia for many years before they became common in countries with a thick conductive overburden, such as Australia. The 1980s and 1990s have seen the use of EM methods move from anomaly finding to mapping, as well as the development of better, faster and more accurate computer modelling algorithms. A review of EM papers, for the years 1998 to 2002, showed that most dealt with EM techniques as mapping tools. Airborne, ground and marine EM techniques are still being developed, as are data processing and interpretation software. The advent of robust 2-D and 3-D computer modelling and inversion algorithms has led to the acceptance of EM methods as a mapping tool for many environmental and petroleum industry applications, a trend which is expected to increase.

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Section: Data Processing and Interpretationmentioning

confidence: 96%

Mining, Environmental, Petroleum, and Engineering Industry Applications of Electromagnetic Techniques in Geophysics

Sheard

Ritchie²,

Christopherson³

et al. 2005

Surv Geophys

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Enhancing imaging of the Sub‐Andean Foothills geology using magnetotellurics: A case history of a 3D survey in southern Bolivia

Pezzoli¹,

Lazaro²,

Cuevas³

et al. 2020

Geophysical Prospecting

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A magnetotelluric acquisition and modelling campaign, comprising 400 full tensor soundings, was carried out in the Sub‐Andean Foothills in the area located south of Santa Cruz de la Sierra, Bolivia. The objective of the survey was to improve the imaging of the Paleozoic section and provide insight to the overall structure of the Devonian Silurian complex. The acquired data were inverted assuming both two‐dimensional and three‐dimensional dimensionality of the subsurface structure, adopting a multi‐step iterative workflow, which began applying unconstrained inversion and introduced increasing constraints determined at each following step based on the interpretation of the latest inversion results. The geological interpretation of the final inversion results allowed to better image the expected complexity in the structures, particularly highlighting several different levels of detachment, mainly in the area of Kirusillas Formation. Furthermore, an oblique sense was identified of the main tendency of N‐S deformation, related to a dextral transgressional movement that generates discrete dislocations, at a length scale of the order of a few kilometres.

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Introduction to special section: Integrated geophysical imaging

Filina

Yalamanchili²,

Re³

et al. 2020

Interpretation

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3D Magneto‐tellurics for imaging a Devonian reservoir (Huamampampa) in the southern Sub‐Andean basin of Bolivia

Cited by 4 publications

References 1 publication

Mining, Environmental, Petroleum, and Engineering Industry Applications of Electromagnetic Techniques in Geophysics

Mining, Environmental, Petroleum, and Engineering Industry Applications of Electromagnetic Techniques in Geophysics

Enhancing imaging of the Sub‐Andean Foothills geology using magnetotellurics: A case history of a 3D survey in southern Bolivia

Introduction to special section: Integrated geophysical imaging

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