Rock Physics Modeling of Acoustic Properties in Gas Hydrate-Bearing Sediment

Gas hydrates (GH) are well known to have an influential effect on the velocity and attenuation of gas hydrate-bearing sediments (GHBS). Based rock physics modeling, sediment has been extensively used characterize distribution hydrate. However, results obtained from different models show a significant variation. In this study, we firstly review compare existing modeling for attenuation. The assumption, characteristics, theoretical basis, workflow briefly introduced. feasibility limitations published then discussed compared. This study provides insight into how select suitable model conduct in application field data. Then, introduce predict hydrate saturation, morphology, dip angle fracture, permeability, mechanisms comparison between modeled measured acoustic properties. most important is predicting saturation discuss uncertainties predicted caused by errors related measurements or modeling. Finally, current challenges optimizing input parameters, choice model, upscaling problems ultrasonic seismic log frequencies.