US 11,808,100 B2
Tubular cut monitoring systems and methods to cut a tubular
Simon Whye Kwong Wai, Singapore (SG); and Adriell Chuan Nan Phoe, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Mar. 4, 2022, as Appl. No. 17/687,511.
Prior Publication US 2023/0279733 A1, Sep. 7, 2023
Int. Cl. E21B 29/00 (2006.01); E21B 47/00 (2012.01)
CPC E21B 29/002 (2013.01) [E21B 47/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method to cut a tubular, the method comprising:
running a downhole cutting tool to a location in a tubular;
during a cutting operation, monitoring, with an inertial sensor of the downhole cutting tool, for stick slip vibrations produced by a cutter blade of the downhole cutting tool;
determining a velocity magnitude of the cutter blade during the cutting operation; and
determining occurrence of an instance of a stick slip vibration of the stick slip vibrations based on a change to the velocity magnitude of the cutter blade;
determining whether a total number of stick slip vibrations produced by the cutter blade within a threshold number of revolutions of the cutter blade is greater than a threshold number of tolerable stick slip vibrations; and
in response to a determination that the total number of stick slip vibrations produced by the cutter blade within the threshold number of revolutions is greater than the threshold number of tolerable stick slip vibrations, ceasing the cutting operation.