www.thedriller.com/articles/87584-shutter-screen-for-thick-formations

Shutter Screen for Thick Formations

May 1, 2009

Shutter screen, also known as louver screen, from Roscoe Moss Co. is manufactured by forming downward-facing louver-shaped openings into pipe up to 40 feet long. Featuring a smooth, unobstructed interior, shutter screen commonly is produced from a variety of steel types, including carbon, copper-bearing, high-strength low-alloy, and stainless. This type of screen is particularly suited for use in large-diameter, deep, gravel envelope wells, which often pump ground water from thick formations consisting of sands and gravels.

Roscoe Moss Co., Card No. 176