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Line 142:
Line 142: + +
→Resistivity
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| Shallow<sup>a</sup> || 2.5 ft || 16 in.
| Shallow<sup>a</sup> || 2.5 ft || 16 in.
|-
| AIT* || 4 ft. 2 ft. 1 ft || 10 in., 20 in., 30 in., 60 in., 90 in. || Estimate ''R''<sub>t</sub>, ''R''<sub>xo</sub>, and ''D''<sub>''i''</sub> in relatively fresh and oil mud systems; reduced shoulder and rugosity effects || Not recommended; Res > 200 Ω-m or ''R''<sub>mf</sub> / ''R''<sub>w</sub> < 2.5
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|-
| colspan=5 | Dual laterolog
| colspan=5 | Dual laterolog