Three-Component Microseismic Data Denoising Based on Re-Constrain Variational Mode Decomposition

Microseismic monitoring is an important technology used to evaluate hydraulic fracturing, and denoising a crucial processing step. Analyses of the characteristics acquired three-component microseismic data have indicated that vertical component has higher signal-to-noise ratio (SNR) than two horizontal components. Therefore, we propose new method for using re-constrain variational mode decomposition (VMD). In this method, it assumed there linear relationship between modes with same center frequency among VMD results data. Then, result as constraint whole effect On basis VMD, add condition form deduce corresponding solution process. According synthesis analysis, proposed can not only improve SNR level records, also improves accuracy polarization analysis. The achieved satisfactory field