Dictionary:Gröningen effect

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Warning: Display title "Dictionary:Gröningen effect" overrides earlier display title "Dictionary:Gröningen effect".

(grern ing ∂n) An effect observed with dual laterologs when a thick resistive unit overlies the measured formation, shielding the formation and giving misleading resistivity readings. This effect can be overcome by adding a return electrode below the tool. Also called the Delaware effect.