US 12,486,727 B1
Drilling event detection
Dale E. Jamison, Houston, TX (US); Andrew Vos, Houston, TX (US); and Mateusz Michal Dyngosz, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 3, 2024, as Appl. No. 18/731,653.
Int. Cl. E21B 21/06 (2006.01); E21B 21/08 (2006.01)
CPC E21B 21/08 (2013.01) [E21B 21/065 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of detecting a drilling event, the method comprising:
flowing a drilling fluid from a wellbore being drilled through a separator;
removing rock cuttings from the drilling fluid by the separator;
discharging the drilling fluid from the separator without the removed rock cuttings to a mud pit;
measuring a first viscosity of the drilling fluid upstream of the mud pit with a single point viscometer;
measuring a second viscosity of the drilling fluid in the mud pit or downstream of the mud pit with a second viscometer that is not a single point viscometer;
calibrating the single point viscometer based on the second viscosity measured by the second viscometer; and
detecting a drilling event associated with drilling of the wellbore by comparing the first viscosity with the second viscosity.