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Gary A Glatzmaier The Geodynamo Paleomagnetic records indicate that the geomagnetic field has existed for at least three billion years. However, based on the size and electrical…

Documents BIS IFR :Improving directional drilling accuracy using magnetic referencing techniques

In-Field Referencing (IFR) Main + Crustal Field Improving directional drilling accuracy using magnetic referencing techniques Sarah Reay Brian Hamilton, Ellen Clarke, Susan…

Documents Compass Points. Cardinal Points Getting a Bearing A bearing is a measurement of direction between...

Slide 1 Compass Points Slide 2 Cardinal Points Slide 3 Getting a Bearing A bearing is a measurement of direction between two points. Bearings are generally given in one of…