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Figure F26. Quality control of the FMS-sonic tool string. Green = Pass 1 (first pass), red = Pass 2 (main pass). A. Caliper. B. Vertical tool acceleration (A_z). C. Horizontal acceleration (A_x). D. Horizontal acceleration (A_y). E. Hole azimuth (HAZI) and orientation (P1AZ) for Pass 1. F. HAZI and P1AZ for Pass 2. G. Angular difference () in P1AZ between the two passes.

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