Seismic attenuation attributes with applications on conventional and unconventional reservoirs

摘要: Seismic attenuation, generally related to the presence of hydrocarbon accumulation, fluid-saturated fractures, and rugosity, is extremely useful for reservoir characterization. The classic constant attenuation estimation model, focusing on intrinsic detects seismic energy loss because hydrocarbons, but it works poorly when spectral anomalies exist, due thin layers, so on. Instead trying adjust model such phenomena, we have evaluated a suite attributes quantify apparent responses. We applied these conventional an unconventional reservoir, found that those were effective robust interpretation. Specifically, bandwidth attribute correlated with production gas sand in Anadarko Basin, whereas slope high frequencies Barnett Shale Fort Worth Basin.