US 12,282,130 B2
Systems and methods for isolation detection using a symmetry invariant log
Geoff Steel, Aberdeen (GB); Mark Walsh, Aberdeen (GB); and Stephen John Mayo, Aberdeen (GB)
Assigned to PIPELINES 2 DATA (P2D) LIMITED, Aberdeen (GB); and ConocoPhillips, Houston, TX (US)
Filed by PIPELINES 2 DATA (P2D) LIMITED, Aberdeen (GB); and ConocoPhillips Company, Houston, TX (US)
Filed on Jun. 28, 2023, as Appl. No. 18/215,229.
Claims priority of provisional application 63/356,339, filed on Jun. 28, 2022.
Prior Publication US 2023/0417942 A1, Dec. 28, 2023
Int. Cl. G01V 1/50 (2006.01); G01V 1/52 (2006.01)
CPC G01V 1/50 (2013.01) [G01V 1/52 (2013.01); G01V 2001/526 (2013.01); G01V 2210/43 (2013.01); G01V 2210/6226 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for isolation detection in a wellbore, comprising:
sending first acoustic waves in the wellbore via a radial acoustic sensor;
receiving first reflection waves associated with the first acoustic waves via the radial acoustic sensor;
sending second acoustic waves in the wellbore via the radial acoustic sensor;
receiving second reflection waves associated with the second acoustic waves via the radial acoustic sensor;
processing recorded data associated with the first acoustic waves, the first reflection waves, the second acoustic waves, and the second reflection waves, wherein the first acoustic waves are associated with a first radial direction, and wherein the second acoustic waves are associated with a second radial direction, the second radial direction being opposite to the first radial direction;
determining a first ratio between a parameter associated with the first reflection waves and a parameter associated with the first acoustic waves;
determining a second ratio between a parameter associated with the second acoustic waves and a parameter associated with the second reflection waves; and
generating a plot for identification of one or more isolation regions in the wellbore based on the processing, wherein the one or more isolation regions are identified based on the first ratio and the second ratio.