Figure F46. A. Formation MicroScanner (FMS)-sonic tool string. HNGS = Hostile Environment Natural Gamma Ray Sonde, DSI = Dipole Sonic Imager, GPIT = General Purpose Inclinometer Tool. B. Logging pass schematic, Hole U1338B. Before the FMS-sonic logging run, the base of the drill pipe was lowered below the borehole restriction encountered during the triple combination run (Fig. F45).
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