Estimation of depletion or injection induced reservoir stresses using time-lapse sonic data in cased holes

摘要

An apparatus and a method for recovering hydrocarbons from a subterranean formation including collecting baseline and subsequent sonic data, calculating either open or cased hole Stoneley and cross dipole dispersions using the baseline and subsequent sonic data, estimating the minimum and maximum horizontal stress magnitude using the calculating dispersions, calculating a pressure, and recovering hydrocarbons.