Slotted Liner


Demonstrated to be one of the safest and most reliable methods of well bore support and sand control, slotted liners are strong, easily installed, and virtually maintenance free.

Providing a rugged screen, they allow formation fluids to enter the well bore with less frictional drag than the lateral wound wire of wrapped screens. At the same time, the longitudinal beveled slots control incursion problems more effectively than the sharp-edged wide profile holes of wrapped drilled liners.

Strength and reliability assured by state-of-the-art technology
Our leadership in the delivery of slotted liners is assured by our state-of-the-art technology. Sophisticated multi-spindle milling machines are used to manufacture slotted pipe of exceptional quality. Specially-designed, this equipment is hydraulically controlled for high precision and constant quality control. Our slotting machines are designed to handle pipe sizes up to 12 inches in diameter and can manufacture lengths up to 46 feet at one time. This extremely stable and rigid equipment enables the pipe to be milled to a precise tolerance, producing clean openings and consistent slot widths and lengths. A unique hydraulic clamping system secures and straightens the casing without damaging the pipe or slots. Continuous application of coolant maintains the pipe's metallurgical integrity. No excess metal is removed and maximum pipe strength is assured while staying within a specified open area.

Designed for maximum efficiency, manufactured to any specification
We produce two styles of slots — either straight or keystone (under-cut).