Abstract
The time-frequency electromagnetic (TFEM) method combines frequency-domain sounding with time-domain sounding to form a comprehensive system so that it is possible to select different frequencies and induce waves according to the objective depth to be explored. During processing not only resistivity but also polarization information can be provided so we can study resistivity as well as predict oil-bearing characteristics simultaneously. Time-domain resistivity information is obtained by pseudo-2D resistivity inversion and frequencydomain IP information is obtained using the Cole-Cole model. Some successful applications in western China show that it provides unique results in an overthrust zone, deep igneous rock investigation, and hydrocarbon prediction.
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Dong Weibin, Engineer, graduated in geophysics from the China University of Geosciences in 1997. Since then he has worked as a senior data processor and interpreter for BGP. From 2004 to 2007 he obtained the Scientific & Technological Innovation Award of CNPC, the Scientific & Technological Innovation Award of BGP, three second prizes of the Scientific & Technological Innovation Award of BGP.
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Weibin, D., Xiaoming, Z., Fang, L. et al. The time-frequency electromagnetic method and its application in western China. Appl. Geophys. 5, 127–135 (2008). https://doi.org/10.1007/s11770-008-0020-8
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DOI: https://doi.org/10.1007/s11770-008-0020-8