Patent ID: 11959377
Assignee: CONOCOPHILLIPS COMPANY
Field: Measurement (Instruments)
Classification: CPC E  G | IPC E  G

Claim 0:
1. A method for isolation detection in a wellbore, the method comprising:
obtaining recorded data including radial acoustic waves transmitted and received using a radial sensor of an acoustic logging tool deployed in the wellbore;
separating a first set of waves of the radial acoustic waves from a second set of waves of the radial acoustic waves by converting the recorded data from a time domain to a frequency domain, the first set of waves corresponding to a first direction of radial propagation and the second set of waves corresponding to a second direction of radial propagation;
shifting the first set of waves into a first set of shifted waves and the second set of waves into a second set of shifted waves;
generating a forward wave by combining the first set of shifted waves and a reflected wave by combining the second set of shifted waves; and
identifying one or more isolation regions in the wellbore using the forward wave and the reflected wave.