Ava using Spherical Wave Reflection Coefficient: Application To Cana Field

摘要: Most AVO inversion algorithms are based on plane wave solutions whereas seismic surveys use point sources to generate spherical waves. The solution is an excellent approximation for waves only when the angle of incidence well below critical angle. In vicinity angle, however, deviation between and responses prominent. With recent advances in acquisition techniques where very long offset data acquired, it may be important develop solution. Here we modify Greedy Annealing Importance Sampling (GAIS) algorithm so that uses analytical as a forward model instead Fatti’s linearized This then applied resolve Woodford formation Cana field, Oklahoma. improvements shown by comparing results with those obtained deterministic inversion.