Slotted liner is processed on standard API 5CT casing & tubing raw material. Longitudinal slots are cut on outer pipe wall via CNC slotting equipment. The slot dimension controls formation sand ingress into wellbore.

It features simple processing, competitive cost and compact outer dimension, which makes running into well much easier.

Core Product Features

1. High Machining Precision

Adopt fully‑automatic CNC slotting machine. Uniform slot width without burrs. Slot tolerance strictly controlled. Custom slot width from 0.2mm to 3mm according to formation sand grain size.

2. Superior Structural Strength

Longitudinal slot layout is mechanically optimized. The pipe retains strong tensile, collapse and burst resistance, resistant to deformation in deep wells and high‑pressure formations.

3. Reliable Sand Control Performance

Match slot width with local sand particle size. Block formation sand effectively while guaranteeing smooth flow of oil, gas or groundwater, balancing sand prevention and well productivity.

Technical Specifications

1. Available Steel Grades (API‑5CT): K55, N80‑1, N80‑Q, L80, 13Cr‑L80, P110

2. Thread Types: NU Plain End, EU Upset End, various Premium Connection, matched casing coupling

3. Common Outer Diameter Sizes:

2‑3/8", 2‑7/8", 3‑1/2", 4‑1/2", 5‑1/2", 7", 9‑5/8", non‑standard custom size acceptable