Target detection simulation and experiments in buried hills with TFEM method
Gao Yan1, Shen Jinsong1, He Zhanxiang2, Jin Fengming3, Cao Yang2
1. College of Geophysics and Information Engineering, China University of Petroleum(Beijing), Beijing 102249, China;
2. BGP Inc., CNPC, Zhuozhou, Hebei 072750, China;
3. Huabei Oilfield Company, PetroChina, Renqiu, Hebei 062550, China
Abstract：We discuss in this paper the feasibility for buried hill reservoir detection with time-frequency electromagnetic(TFEM) method. First we build a geological model based on the available data in JZ region, then conduct forward modeling of targets with different sizes and resistivity at different positions in buried hills. Both electric field amplitude curves and pure amplitude profiles without background are obtained in different situations. We analyze electromagnetic anomaly of buried hills. Field experiments were conducted for testing the feasibility. The results demonstrated that oil-saturated targets in buried hills can be characterized by time-frequency electromagnetic responses.
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