Pad 1 azimuth (P1AZ)

The orientations of borehole image and dipmeter tools need to be referenced to north.  The azimuth at any time of pad 1 acts as this reference in relation with magnetic north.  It is given in degrees (more rarely in radians) referenced clockwise from north.  It is not defined for a well section that is horizontal.  For holes deviated up to approximately 30º the relationship RB = P1AZ – hole azimuth should hold.


RIDER, M., 1996.  The Geological Interpretation of Well Logs, Whittles Publishing, Caithness, p280.


See also relative bearing (RB) and hole orientation.



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