US 12,092,450 B2
Automated self-correction of logging depth by using multiple sensors
Bin Dai, Katy, TX (US); and Christopher Michael Jones, Katy, TX (US)
Assigned to HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Filed by HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Filed on Jan. 31, 2022, as Appl. No. 17/589,015.
Prior Publication US 2023/0243634 A1, Aug. 3, 2023
Int. Cl. G01B 5/18 (2006.01); G01V 1/46 (2006.01); G01V 1/50 (2006.01)
CPC G01B 5/18 (2013.01) [G01V 1/46 (2013.01); G01V 1/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
while a wireline tool is moving within a wellbore, receiving (i) a first set of sensor data generated by a first sensor of the wireline tool, and (ii);
a second set of sensor data generated by a second sensor of the wireline tool, wherein the first set of sensor data includes a first pattern recorded by the first sensor at a first point in time at a location, the second set of sensor data includes a second pattern recorded by the second sensor at a second point in time at the location, and the first sensor and the second sensor are each disposed on the wireline tool with a predetermined distance between the first sensor and the second sensor;
aligning the first pattern with the second pattern;
generating correlation data indicating a level of correlation between the first pattern and the second pattern based on the aligned first pattern and the second pattern;
determining a perceived distance between the first set of sensor data and the second set of sensor data based at least in part on the correlation data;
determining a deviation between the perceived distance and the predetermined distance; and
correcting an original log depth of the wireline tool based on the deviation.