1. n. [Drilling Fluids]

The spherical diameter corresponding to the ellipsoidal volume distribution of the screen opening sizes as measured by image analysis techniques. Named after Al Cutt of Amoco who developed the technique. Not to be confused with cut point.

Reference: Cutt AR: "Shaker Screen Characterization Through Image Analysis," paper SPE 22570, presented at the 66th SPE Annual Technical Conference and Exhibition, Dallas, Texas, USA, October 6-9, 1991.