Using a compass to steer a drill bitThe critical importance of accurately steering a directional drilling operation places high demands on magnetic field measurement Alan Bailey Petroleum News
The use of the Earth’s magnetic field to make directional measurements, a technique that goes back many centuries in the form of the magnetic compass, remains a key to precisely steering a drill bit through subsurface rock strata during oil well drilling, according to an article in the fall 2013 iss....
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Deadhorse observatory Precision magnetometers
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