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CDEX Expedition #1 Overview with LWD at 6 sites

CDEX Expedition #1 Overview with LWD at 6 sites. Co-chiefs: Masa Kinoshita and Harold Tobin. Objectives of LWD Expedition. Systematic logging of common properties throughout all 6 holes from the input sites to the forearc basin Detection of fault zone, basement, BSR, etc. No casing

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CDEX Expedition #1 Overview with LWD at 6 sites

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  1. CDEX Expedition #1Overview with LWD at 6 sites Co-chiefs: Masa Kinoshita and Harold Tobin

  2. Objectives of LWD Expedition • Systematic logging of common properties throughout all 6 holes from the input sites to the forearc basin • Detection of fault zone, basement, BSR, etc. • No casing • Hole abandon procedure for hydrologic problem • Fault architecture characterization • fracture density, orientation, and conductivity • Stress Orientation through borehole breakout • Comparison with core samples • Evolution of accretionary complex • Vp and density of old accretionary prism • Core-Log-Seismic Integration • History of landslides • RAB / Sonic (Mexico gave a good example) • Methane Hydrate Study • Lithostratigraphic properties (Logging UNITS) • Basalt will NOT be drilled, to preserve hydrological condition • Accurate positioning of hole trajectories • In-situ T&P will be estimated during later expeditions, not this?

  3. Scientific Application for LWD

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