Kombinasi spektral dekomposisi berbasis transformasi wavelet kontinyu (CWT) dan seismik inversi untuk karakterisasi reservoar prospect "L" : studi kasus cekungan Sumatera Selatan = Combination spectral decomposition based on Continous Wavelet Transform (CWT) and seismic inversion for reservoir characterization of "L" prospect : a case study of South Sumatera basin