Work

An open-source code of the full-waveform inversion method verified by the synthetic GPR data to monitor the CO2 flooding

Year: 2025

Type: article

Abstract: The full-waveform inversion (FWI) of ground penetrating radar data can recover the permittivity and conductivity variations in a Debye medium. Numerical tests verify the performance of the FWI method in recovering permittivity and conductivity anomalies and medium boundaries. It further reveals that the process of water and carbon dioxide flooding oil could be successfully monitored with the FWI method by referring to the variations of medium conductivity and permittivity. In terms of the FWI method developed in this study, the forward modeling is run by the auxiliary finite difference method, the model correction in inversions is estimated by minimizing the difference between the energy signals of observed and synthetic data with the L-BFGS method, and the corresponding calculations are running on the GPUs in this study, which are effective in reaching an optimal inversion result and reducing the computational consumptions.

Source: Journal of Geophysics and Engineering

DOI: 10.1093/jge/gxaf106

Authors: Qihui Zhen, Qingyun Di, Pengfei Liang, Shun Zhang

Institutions: Sinopec (China), Chinese Academy of Sciences, Institute of Geology and Geophysics

Language: English

Topic: Geophysical and Geoelectrical Methods

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,550

Funder: SINOPEC Petroleum Exploration and Production Research Institute