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* [[Dual induction]] * [[Dual laterolog]]

...the same way, a microspherical log will show less resistivity than a deep laterolog. In general, all methods involving resistivity logs depend on a marked cont ===Dual porosity models===

| Laterolog ...ole-tools_fig1.png|{{figure number|1}}A typical log showing SP, gamma ray, dual Induction, and sonic measurements. &copy; Schlumberger.<ref name=Schlumberg

Dual water: ...atively salty formation waters and moderate amounts of dispersed clay. The dual water and Waxman and Smits equations were designed for all water salinities

...hod for interpreting resistivity measurements. Either the induction or the laterolog wireline measurement can be used for formation water saturation in areas wh ...sub>t</sub>, can be determined from analysis of the dual induction or dual laterolog measurements (see “Preprocessing of Logging Data”).

...R_LLS and R_LLD is mudfiltrate, laterolog shallow and laterolog deep resistivity in ohm-m, R_LLS dan R_LLD equivalent t ==Relationship Between Porosity and Permeability in Dual Porosity System==

...pen hole tools#Induction|induction]] or [[Basic open hole tools#Laterologs|laterolog]]) is usually selected as the base log. For example, if [[Basic open hole t ...igure number|1}}Determination of true resistivity (''R''_t) from dual induction.]]