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Petroleum Science >2009, Issue 3: 259-265 DOI: https://doi.org/10.1007/s12182-009-0041-9

Geophysical methods for the study of sedimentary cycles Open Access

文章信息

作者：Xu Jingling,Liu Luofu,Wang Guiwen,Shen Jinsong and Zhang Chunhua

作者单位：

School of Resources and Information Technology, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;School of Resources and Information Technology, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;School of Resources and Information Technology, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;School of Resources and Information Technology, China University of Petroleum, Beijing 102249, China; State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;Department of Computer Science and Technology, China University of Petroleum, Beijing 102249, China

投稿时间：2008-07-13

引用方式：Xu, J., Liu, L., Wang, G. et al. Pet. Sci. (2009) 6: 259. https://doi.org/10.1007/s12182-009-0041-9

文章摘要

We present the wavelet depth-frequency analysis and variable-scale frequency cycle analysis methods to study sedimentary cycles. The spectrum analysis, variable-scale frequency cycle analysis, and wavelet depth-frequency analysis methods are mainly discussed to distinguish sedimentary cycles of different levels. The spectrum analysis method established the relationship between the spectrum characteristics and the thickness and number of sedimentary cycles. Both the variable-scale frequency cycle analysis and the wavelet depth-frequency analysis are based on the wavelet transform. The variable-scale frequency cycle analysis is used to obtain the relationship between the periodic changes of frequency in different scales and sedimentary cycles, and the wavelet depth-frequency analysis is used to obtain the relationship between migration changes of frequency energy clusters and sedimentary cycles. We designed a software system to process actual logging data from the Changqing Oilfield to analyze the sedimentary cycles, which verified the effectiveness of the three methods, and good results were obtained.

关键词

Sedimentary cycles, spectrum analysis, wavelet depth-frequency analysis, variable-scale frequency cycle analysis