MAGVARMagnetic Variation
References in periodicals archive ?
As drilling oil and gas wells has become more complex, it requires a level of precision that was uncommon even a few years ago.H&P acquired technology firms Motive Drilling Services and MagVAR variation services last year, and those services have been increasingly popular among customers.
Manually input the local MAGVAR by following the instructions on Page 2-35 of the TM.
We noted the magnetic variation (magvar) given during our flight brief appeared to be incorrect, because with our CDI centered, we didn't think we were flying directly up the ship's stern.