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Surface prospecting current flow 5
Rnc Rmf vs Rm 17 32
Hand Recording Procedures
14 other sections not shown
analysis anisotropic anomaly apparent resistivity bed thickness borehole boundary cations cent chart clay clean sand computed concentration connate water corresponding deflection depth determined device diameter drill hole effect electrical log Electrical Resistivity electrochemical electrode electromotive force equation example Figure fluid formation factor formation resistivity formation water gamma ray gamma ray log H. G. Doll impervious beds indicated induction log invaded zone isotropic Journal of Petroleum Laterolog Log Interpretation membrane method MicroLog mud cake mud filtrate mud resistivity NaCl neutron neutron log obtained ohm-m permeable beds Petroleum Technology porous potential pseudo-static SP ratio ray zero resistivity logs S.P. log salinity Schlumberger shale shaly sand short normal shown shows sodium chloride solutions SP curve SP log static S.P. static SP streaks temperature thin beds tion true resistivity water sands water saturation