Patent ID: 11946325
Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 13:
14. A method for conducting a subterranean operation, the method comprising:
engaging a tubular with a spinner;
rotating a drive gear, with the drive gear coupled to the spinner;
rotating the spinner in response to rotating the drive gear;
rotating the tubular in response to rotating the spinner;
counting, via an encoder, teeth of the drive gear as the teeth pass through a sensing field of a proximity sensor;
calculating an actual number of the teeth that passes through the sensing field while the spinner engages the tubular;
determining a wear status of the spinner based on the actual number of the teeth counted, wherein determining the wear status further comprises comparing the actual number of the teeth counted to a pre-determined number of teeth; and
determining the pre-determined number of teeth by determining a gap between a shoulder of a pin end of the tubular and a top end of a tubular string when the pin end of the tubular is setdown in a box end of the tubular string.