Application of amplitude and phase curves received by induction sounding with natural sources for the purpose of mapping

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Category: Geological sciences
Last Updated on Thursday, 16 May 2013 10:00
Published on Thursday, 15 November 2012 14:13
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Authors:

A.I. Ingerov, Cand. Sci. (Geol.-Min.), Рhоеniх Gеорhysics Limited, Vice President of the Company for Eastern Europe and Central Asia, Toronto, Canada

I.A. Ingerov, Advanced Geophysical Operations and Services Inc., Vice President of the Company for Eastern Europe and Central Asia, Toronto, Canada

A.L. Lozovoy, Cand. Sci. (Geol.-Min.), Associate Professor, State Higher Educational Institution “National Mining University”, Senior Lecturer of Geophysical Methods Department, Dnipropetrovsk, Ukraine

Ya.V. Mendriy, State Higher Educational Institution “National Mining University”, Assistant Lecturer of Geophysical Methods Department, Dnipropetrovsk, Ukraine

Abstract:

Purpose. Application of standard curves (amplitude and phase curves) of interference extremum received by induction sounding with natural sources for the purpose of mapping of geoelectrical horizons of high resistivity.

Methodology. On the basis of the results of 1D and 2D physical and mathematical modelling of the behaviour of amplitude and phase curves interference extremums depending on the change of parameters of geoelectrical section was studied. For the removal of static displacement of curves caused by near-surface heterogeneity, the electric logging and seismic data were used additionally.

Findings. Empiric dependences for determination of parameters of geoelectrical section on observed periods of amplitude and phase curves interference extremums of magnetotelluric data were established.

Originality. The abscissas of standard curves interference extremums of the induction soundings with natural sources are closely associated with the parameters of geoelectrical section.

Practical value. The method can be used for express-interpretation of the electromagnetic data in order to study the target horizon morphology within oil and gas fields.

References:

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Lozovoy, A.L., Ingerov, А.I, Mazurenko, R.V. and Plotnikov, Ye.А. (2007), “V5 System 2000 equipment and possibility of implementation of magnetotelluric fields study method with the single station on the fields of operating coal mines in Ukraine”, Naukovyi visnyk Natsionalnoho hirnychoho universytetu, no.1, pp. 40–43.

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Berdichevskiy, M.N. and Dmitriyev, V.I. (2009), Modeli i metody magnitotelluriki [Models and Methods of Magnetotellurics], Nauchnyy mir, Moscow, Russia

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Gurvich, I.I. Seysmicheskaya razvedka [Seismic Prospecting], 3rd Edition, Nedra, Moscow, Russia

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Tags: electromagnetic fieldinduction soundingamplitude and phase curvesapparent resistivityhodograph curve of electromagnetic wave