Physical modeling of the Bazhenov formation in combination with CSEM and seismic methods

¹ Saint-Petersburg Mining University, Department of Geophysical and Geochemical Methods of Prospecting and Exploration of Mineral Deposits, St Petersburg, Russia
² Department Manager , Gazprom Neft, Russian Federation, Saint Petersburg, Russia
³ Saint-Petersburg Mining University, Department of Geophysical and Geochemical Methods of Prospecting and Exploration of Mineral Deposits, Geological Faculty, St Petersburg, Russia

Abstract

To predict the properties of the Bazhenov formation and to identify the areas in which oil deposits are localized the use of electrical prospecting methods is promising. The main goal of the current research is to evaluate the effectiveness of using Controlled Source Electro Magnetics (CSEM) exploration for the area forecast of the properties of the Bazhenov formation. The main objectives of physical modeling in this research are: Creation of an isotropic physical model corresponding to the electrical and elastic parameters of the section of the studied area, and performing 3D modeling on it with survey parameters that reproduce real seismic and CSEM surveys To convince that the contrast of the elastic properties and the ratio of the resistivity of the target interval of the Bazhenov formation and overlying rocks in the created physical model corresponds to the real petrophysical characteristics of the section of the studied area; Obtaining initial data for testing algorithms for synchronous inversion of seismic + electric and testing various approaches to processing and interpretation of CSEM and 3D seismic data.