Anti-corrosive Tubing
(1) Grade: J55,N80,L80,C90,T95,P110
(2) Specs: 1.9"-4 1/2"
(3) Type of end-finish: EUE,NUE
(4) Coating thickness: 200-300um
(5) Adhesion: 1-3 grade
(6) Shock strength: ≥11J Abrasion resistance: ≤20mg
The Anti-corrosive tubing produced by Freet has ten models. The Anti-corrosive tubing is the product with the inner wall being treated with special materials. These products mainly used in water injection well, acid-fracturing wells, H2S gas well, and heavy scaled wells, paraffin troubled wells, etc. This kind of anti-corrosive tubing has good abrasion resistance, fatigue endurance, excellent anti-corrosive, and also has no pollution and long service life.
Finished anti-corrosive tubing is composed of pipe, coupling, internally coated with epoxy powder, and thread protectors. There is TBG tubing round thread in both ends of pipe and coupling. And coupling is tightened on the pipe according to the recommended torque.
Product Standard
1. ST/T 0442-97 Technical standard of internal coating of fusion bonded epoxy for steel pipeline;
2. API SPEC 5CT Specification for casing and tubing;
3. API SPEC 5B Specification for threading, gauging and thread inspection of casing, tubing and line pipe threads.
Advantages:
1.The coat has a large mechanical strength, and has a fine flexibility and is anti-impact.
2.The coat of epoxy powder combines well with the tubing and will not peel off in large pieces and will not contaminate formation. The coat may be slowly abraded in the medium fluid and has a long working life.
3.The coat has a fine physical and mechanical performance, stable chemical changes and good electrical insulation.
4.The coat is not noxious, and environment-friendly.
5.The coat layer is heat-resistant, and can be used continuously in an environment of no more than 150℃.
6.The coat layer is flat and smooth and can inhibit scale buildup inside the tubing and can increase the carriage ability of medium fluid.
7.Special technology is used in the coating, and the collar threats are also coated to ensure the corrosion resistance of the liquid passage of the whole tubing.
