Интерпретация данных 3D ЗСБ с учетом параметров индукционно-вызванной поляризации [Электронный ресурс]

Авторы: Компаниец С.В.     Кожевников Н.О.   (ИНГГ СО РАН)   Мурзина Е.В.    
дата публикации: 2019
The TEM method is of broad use in oil and gas exploration in southern Siberian Craton, with about ten thousand soundings acquired yearly. The multi-offset TEM systems with 500 - 600 m square loops, which have been in use recently, can reveal also induced polarization (IP). IP-affected TEM data make about 75 % of the total amount of transient responses recorded in the area. The IP effects can be estimated qualitatively from difference between the right-hand branches of apparent resistivity curves obtained with in-loop and off-loop configurations. Processing of these data consists of several steps. First, TEM responses at reference points within the study area are inverted in a semi-automatic mode with IP effects included in terms of the Cole-Cole model. The polarization parameters of the resulting reference models are interpolated over the whole area with regard to difference between in-loop and off-loop responses. The equivalence is reduced by locking two out of four Cole-Cole parameters (most often c and τ).
первоисточник: Геомодель 2017: 19-я конференция по вопросам геологоразведки и разработки месторождений нефти и газа (г. Геленджик, 11-14 сентября 2017 г.): Тезисы докладов
страницы: 43897-43897
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