Application of interpolation of well logs based on Matlab to analysis of geological cyclicity

作者：Yu Ji Feng^*; Yu Yong; Fu Wen Zhao; Lang Xu Juan; Song Zhao Jun; Li Qing

来源：Journal of China Coal Society, 2011, 36(10): 1679-1682.

• Cyclicity
• Geological interpretation
• High fidelity
• Interpolation function
• Interpolation theory
• Jiyang Depression
• MATLAB platform
• Multiscales
• Number of datum
• Permian
• Well logs
• Well profile

Based on the interpolation theory, a computer routine composed of the interpolation function Interp1 on Matlab platform was written to realize the interpolation of well logs automatically. The GR curve of part of Permian strata of well G1 in Jiyang depression was interpolated with the computer routine in both cases of interpolation with given interval and with given total number of data, and thereafter wavelet analysis of the interpolated well logs was carried on. The results show that the interpolated well logs are of high fidelity compared with the original on the one hand and more convenient for multi-scale geological interpretation, on the other hand. 8 small-scale cycles, 4 medium-scale cycles and 2 large-scale cycles are classified in the case well profile, which verified the validity and practicability of the Matlab routine.

• 出版日期2011
• 单位山东科技大学