TEM and sTEM Electromagnetic Studies Application in Geological Settings of Arctic Zone of Western Siberia
N.V. Misiurkeeva, I.V. Buddo, Y.A. Agafonov, I.A. Shelohov, A.S. Smirnov, M.G. Zharikov and A.S. Kulinchenko
Event name: Geomodel 2017
Session: Нетрадиционные месторождения углеводородов
Publication date: 11 September 2017
Info: Abstract, PDF ( 1.3Mb )
The article describes results of electromagnetic TEM and sTEM exploration in the settings of the Arctic zone of Western Siberia. The research consisted of a separate study of the upper and the lower parts of the section, which made it possible to obtain a detailed geoelectric model in the depth interval from the first meters to 5 km. As a result of the research, the latest data on the distribution and thickness of permafrost rocks, deep channels of hydrocarbon migration, and prospects for the oil and gas potential of the study area were obtained. The boundary of the cryolithozone distribution according to the sTEM is presumably located at a depth of about 450 - 470 m. In addition, for the first time, according to the data of the sTEM, the prerequisites for the presence of gas hydrate deposits in the shallow section are revealed. According to EM data, the geoelectric structure of the sedimentary rocks to a depth of 5 km was estimated by the method of deep 3D TEM, and promising oil and gas bearing objects in the sedimentary cover of the study area were identified.