The applicability of near-field TEM-TDEM soundings to hydrocarbon exploration in the geological conditions of West Siberia is analyzed on the basis of standard and new techniques of data acquisition and processing. The new approach including polarization effects produced by the presence of hydrocarbons is much more efficient than the standard techniques restricted to resistivity variations. The new method was tested in a number of known and new oil and gas fields in the Middle Ob’ region.

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