CONTINUOUS GYRO-INCLINOMETRIC SURVEY OF ARBITRARILY-ORIENTED WELLBORES:VARIOUS CIRCUITRY DESIGNS, PROBLEMS AND SOLUTIONS

摘要

Various gyroscopic inclinometers (GI) for continuous survey, the well-known and those under development, are analyzed and compared. The prospects for their future are discussed. Recommendations for their employment are given. Novel circuitry designs and algorithms are presented. The results of GI operation and possibilities for them to be used in wellbores of different orientations are discussed.