New antenna modelling using wavelets for heavy oil thermal recovering methods

This work proposes a model to investigate the use of a cylindrical antenna used in the thermal method of recovering through electromagnetic radiation of high-viscosity oil. The antenna has a simple geometry, adapted dipole type, and it can be modeled by using Maxwell's equation. The wavelet transforms are used as basis functions and applied in conjunction with the method of moments to obtain the current distribution in the antenna. The electric field, power and temperature distribution are carefully calculated for the analysis of the antenna as electromagnetic heating. The energy performance is analyzed based on thermo-fluid dynamic simulations at a field scale, and through the adaptation in the Steam Thermal and Advanced Processes Reservoir Simulator (STARS) by Computer Modeling Group (CMG). The model proposed and the numerical results obtained are stable and presented good agreement with the results reported in the specialized literature.

Research Highlights
► Resolution revealed by continuous wavelet transform, analysis and decomposition algorithms.
► Matrices with wavelet transforms were sparse, reducing considerably the computational effort.
► A new “tool” for STARS providing an energy analysis and economic process of HIE with field data.
► Electromagnetic heating might be a tool, increasing the recuperation factor of heavy oil reservoirs.