Method of correcting axial and transverse error components in ma

Details Method of correcting axial and transverse error components in ma Method of correcting axial and transverse error components in ma

1995-06-07

1997-04-22

Cosimano, Edward R.

Boots, shoes, and leggings

364559, 36457101, E21B 47022

Patent

active

056234074

ABSTRACT:
The present invention is directed to a method for compensating V2 for bias error on one or more magnetometers used for one or more borehole directional surveys, comprising determining the constant or first-order varying bias values which minimize the variance of computed local magnetic field vectors with respect to central values, which may be either independent estimates of the local magnetic field vector or the mean values of the computed local magnetic field vectors.

REFERENCES:
patent: 4163324 (1979-08-01), Russell et al.
patent: 4345454 (1982-08-01), Brown
patent: 4761889 (1988-08-01), Cobern et al.
patent: 4956921 (1990-09-01), Coles
patent: 5103177 (1992-04-01), Russell et al.
patent: 5321893 (1994-06-01), Engebretson
patent: 5432699 (1995-07-01), Hache et al.
patent: 5452518 (1995-09-01), DiPersio

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