PETROLEUM POTENTIAL ASSESSMENT OF THE CHAIKINSKAYA AREA BASED ON MAGNETIC FIELDS MODELLING

O. G. Sadur, S. S. Dolgushin, V. V. Markov, V. N. Yakimov

The authors have developed and tested a new magnetic field modeling method, which applies highprecision magnetic survey in prospecting for oil and gas bearing structures. The method is based on search for specific attributes of magnetic fields caused by hydrocarbon accumulations. The method was tested in Western and Eastern Siberia. Areas for detailed study were outlined along the geotraverse 20 in Western Siberia during the regional survey, and detailed works resulted in distinguishing the area spatially corresponding to the well-known arasovskoye gas-oil field. In Eastern Siberia the search for promising structures was made in the Chaikinskaya area. To raise the validity of results, the adjacent area with similar geology, which includes the well-known Talakanskoye large field, was chosen as a reference. Based on the study results the authors concluded that there are no any large hydrocarbon accumulations in the Chaikinskaya area, which was proved by the well #367 data.

Key words: magnetic survey, magnetic fields, modeling, oil and gas content, Chaikinskaya area.

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