Figure F37. Summary of logs recorded by the Formation MicroScanner (FMS)-sonic tool string, Hole U1341B. Hole size is calculated by the two orthogonal calipers of the FMS (C1 and C2). Hole size measured by the Hostile Environment Litho-Density Sonde (HLDS) caliper during the triple combination (TC) run is shown in gray for comparison. The gamma ray log recorded during the main pass of the triple combination tool string is also shown for comparison and to confirm the good match between the two runs. High waveform coherence (red in the velocity tracks) is a measure of the reliability of the slowness/time coherence algorithm used to derive compressional (VP) and shear (VS) velocities from the recorded waveforms, including the upper and lower dipoles (UD and LD). gAPI = American Petroleum Institute gamma ray units.
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