A [[microresistivity log]] made from a tool of the [[laterolog]] type with a [[bucking electrodes|bucking electrode]] and two monitor [[electrode|electrodes]] arranged concentrically on a [[sidewall pad]] which is pressed against the [[formation]]. The survey current flow is concentrated into a gradually flaring tube shape. Because the spacing is small, the measurement is responsive to the [[resistivity]] of a small volume of formation in front of the pad. Measurements of the resistivity of the [[flushed zone]] are made. A caliper curve is recorded simultaneously. Compare [[proximity log]] and [[microspherically focused log]].

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