Figure F45. A. Modified triple combination tool string. HNGS = Hostile Environment Natural Gamma Ray Sonde, HLDS = Hostile Environment Litho-Density Sonde, GPIT = General Purpose Inclinometer Tool, DIT = Dual Induction Tool, SFLU = spherically focused resistivity. B. Logging pass schematic, Hole U1338B. In the main uplog pass, a borehole restriction was encountered near the base of the drill pipe (hatched interval).
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