Patent ID: 9103203
Filing Date: 2015-08-11
Classification: E21B,G01V

Abstract:
1. A method for estimating a value of a property of a liquid-filled wellbore system, comprising the steps of: providing a receiver element for recording data including at least one of pressure and rate of flow at one or more locations in the liquid-filled wellbore system; creating at least one acoustic disturbance in the liquid-filled wellbore system; interpreting recorded data, wherein said recorded data includes a recording of the at least one acoustic disturbance in the liquid-filled wellbore system, to predict at least one attribute of the recorded data wherein said predicted attribute is a least one of amplitude, frequency, attenuation, dispersion, differential travel time, absolute travel time, and time resulting from the at least one acoustic disturbance; and estimating the value of the property of the liquid filled wellbore system based on the predicted attribute of the recorded data, where the property includes one of pressure, pH, temperature, background radiation, location, fluid viscosity, density, velocity, electrical resistance or conductivity, compressive strength, shear strength attenuation and acoustic transmitivity.