ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,868, issued on Oct. 28, was assigned to MAGNETIC VARIATION SERVICES LLC (Denver).
"Drill pipe tally system" was invented by Nishant Agarwal (Denver) and Todd W. Benson (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems for pipe tallying in well drilling operations and methods for using the same are described. The pipe tallying systems determine a number of pipe joints that pass through an inlet based on the diameter of the pipe joint when compared against a drill pipe diameter. The pipe tally system maintains a tally of drill pipes in a borehole and the pipe tally system can produce a borehole depth measurement based on the length of pip...