Figure F3. Sketch of the LWD/MWD BHA, Expedition 343. Drill string includes, from the bottom up: an 8½ inch bit, geoVISION sensor, arcVISION sensor, and TeleScope sensor with measurement points attached. D&I = declination and inclination, GR = gamma ray. Additionally, ring, buttons, and resistivity are resistivity measurement points.
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