Proc. IODP, 322, Data report: Site C0011 LWD resistivity

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Chapter contents Abstract Introduction Archie porosity estimation Temperature estimation Porosity calculations Results Acknowledgments References Figures F1. Temperature gradients. F2. Bit and ring resistivity profiles. Tables T1. Thermal conductivity coefficients. T2. Estimated bottom-hole temperatures. PDF file			Previous \| Next doi:10.2204/iodp.proc.322.201.2013 Porosity calculations Using the previously discussed Archie relationship between porosity (φ) and measured LWD resistivity (R_o) and the temperature-corrected fluid resistivity (R_w) it is possible to estimate a complete porosity profile. As determined from previous work in the Nankai Trough area and previous NanTroSEIZE expeditions (Kinoshita et al., 2008), m = 2.4 and a = 1. Both bit and ring resistivity were used to calculate two separate porosity profiles, for each temperature-corrected fluid resistivity. Top of page \| Previous \| Next

Porosity calculations