US 12,454,868 B2
Drill pipe tally system
Nishant Agarwal, Denver, CO (US); and Todd W. Benson, Dallas, TX (US)
Assigned to MAGNETIC VARIATION SERVICES LLC, Denver, CO (US)
Filed by MAGNETIC VARIATION SERVICES LLC, Denver, CO (US)
Filed on May 13, 2024, as Appl. No. 18/662,159.
Application 18/662,159 is a continuation of application No. 17/073,050, filed on Oct. 16, 2020, granted, now 12,012,809.
Claims priority of provisional application 62/916,100, filed on Oct. 16, 2019.
Prior Publication US 2024/0368950 A1, Nov. 7, 2024
Int. Cl. E21B 19/24 (2006.01); E21B 3/04 (2006.01); E21B 44/02 (2006.01); G01D 5/14 (2006.01); E21B 7/04 (2006.01)
CPC E21B 19/24 (2013.01) [E21B 3/04 (2013.01); G01D 5/14 (2013.01); E21B 7/04 (2013.01); E21B 44/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for determining weight on bit (WOB) during drilling of a borehole, the method comprising:
determining a pipe tally for drilling pipes entering into the borehole using a pipe tally system;
determining WOB data via a drilling control system;
determining a joint between adjacent drilling pipes is passing through an entry into the borehole, the joint having a diameter greater than a pipe diameter; and
correcting the WOB data for errors due to increased frictional forces applied to the joint as the joint passes through the entry.