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Table T7. Measurement acronyms and units, vertical resolutions, and depths of investigation (where available) of wireline tools, Expedition 334.

Tool Output Explanation Unit Vertical resolution (cm) Depth of investigation (cm)
adnVISION 675   Azimuthal Density Neutron Tool      
CLXX Ultrasonic caliper along axes XX, where XX = 15, 26, 37, 48 (for axes 1 and 5, 2 and 6, etc.) inch    
DCAV Average density caliper inch    
TNPH Thermal neutron porosity % 31  
PEF Photoelectric factor b/e−    
RHOB Density g/cm3 15  
IDRO     Image-derived density g/cm3    
Oriented density images of borehole wall      
Oriented images of borehole radius from density caliper      
arcVISION 675   Array Resistivity Compensated Tool      
AXXH, AXXL, AXXB Attenuation resistivity at source-receiver spacing XX, where XX = 16, 22, 28, 34, and 40 inches Ωm 55–122 48–102
PXXH, PXXL, PXXB Phase-shift resistivity at source-receiver spacing XX, where XX = 16, 22, 28, 34, and 40 inches Ωm 21–30 33–79
In the output acronyms above, H = 2 MHz resistivity, L = 400 kHz resistivity, and B = blended resistivity        
GR_ARC Calibrated gamma ray gAPI 46  
APRS_ARC Downhole annulus pressure psi    
ATMP Downhole annulus temperature °C    
geoVISION 675                   Resistivity at the Bit Tool      
GR_CAL Calibrated gamma ray gAPI 46  
RES_BIT Bit resistivity Ωm 30–61 30
RES_RING Ring resistivity Ωm 5–8 18
RES_BD Deep button resistivity average Ωm 5–8 13
RES_BM Medium button resistivity average Ωm 5–8 8
RES_BS     Shallow button resistivity average Ωm 5–8 2.5
Oriented resistivity images of the borehole wall      
Oriented gamma ray images of the borehole wall      

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