High-Frequency Stratigraphic Cyclicity Identified Based on Blackman-Tukey Correlogram Analysis Method

Abstract

The purpose of this paper is to perform a spectral analysis method of Blackman-Tukey on high-resolution electrical borehole image log data to investigate whether the cycles in the sediments to interpret the high-resolution formation sequence. Firstly, in order to perform a spectral analysis on FMI data, it has to extract background conductivity log from the borehole image. Then, study how to use the Blackman-Tukey method to identify the stratigraphic cycles. Finally, use the spectral analysis method on the background conductivity data in the field case. The results show that the identified cycles in the sedimentary record match the Milankovitch cycles and prove the method is correct. This paper provides a new approach and idea on identifying stratigraphic and interpreting high-resolution sequence stratigraphy.