TITLE:
Seismic Wavelet Analysis Based on Finite Element Numerical Simulation
AUTHORS:
Junguo Du, Jun Wu, Longjiang Jing, Shuqin Li, Qiang Zhang
KEYWORDS:
Finite Element Method, Seismic Wavelet, Numerical Simulation, Thin Interbed
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.6,
June
30,
2023
ABSTRACT: The practice of exploration and production has proved that explosives are excited in different surrounding rocks and the seismic wavelets collected have different characteristics. In this paper, by establishing a numerical model of the explosion in the well, using finite element analysis technology for numerical simulation, the simulation calculated the stress structure in the near-source area of the earthquake excitation, and extracted the seismic wavelet. The results show that the simulation seismic wavelet characteristics of different thin interbedded sand and mudstone structures have changed significantly. Through excitation simulation, the amplitude and spectrum information of seismic wavelets can be compared and analyzed, and the excitation parameters can be optimized.