Patent ID: 9341731
Filing Date: 2016-05-17
CPC Classification: G01V

Claim Text:
1. A method of locating azimuthal directions of subterranean fractures in a borehole, the method comprising the steps of: receiving raw acoustic data obtained from a plurality of sensors which are configured to sense acoustic waves corresponding to a depth location within a borehole, the received raw acoustic data corresponding to sensed acoustic waves transmitted from a monopole source through a subterranean formation and oriented in at least four azimuthal directions; filtering the received raw acoustic data corresponding to the at least four azimuthal directions; calculating Root Mean Square energies from the filtered raw acoustic data corresponding to the at least four azimuthal directions; determining a baseline Root Mean Square energy from the calculated Root Mean Square energies; and finding a minimum calculated Root Mean Square energy from the calculated Root Mean Square energies, the minimum calculated Root Mean Square energy associated with a specific azimuthal direction.