Oil Line Pipe

Oil line pipe

We are professional in manufacturing JCOE PIPE

The specification of JCOE PIPE

Oil line pipe are the lifeline of the oil industry chain. Guided by the characteristics of the medium and operating conditions, they achieve safe, efficient, and economical transportation through the synergy of materials, standards, and processes. For different application areas, scenario-specific requirements must be matched, coupled with strict anti-corrosion technology, to ensure long-term operational safety.

For large diameter, high delivery pressure, long-distance conveying pipe, forming and welding technology is critical. Points from the production process, welded pipe is mainly divided into electric resistance welding tube (ElectricResistanceWelding, ERW), spiral submerged arc welding pipe (SAWH) and straight seam submerged arc welding pipe (for big diameter, delivery pressure, long-distance conveying pipe forming and welding technology is critical. Points from the production process, welded pipe is mainly divided into electric resistance welding tube (ElectricResistanceWelding, ERW), spiral submerged arc welding pipe (SAWH) and straight seam submerged arc welding pipe (SAWL). Although the resistance weld pipe development soon, but still belongs to the medium and small diameter welded pipe. At present, large diameter welded pipe still by SAWH and SAWL process. 

Oil pipelines made of different materials have varying performance characteristics. The following describes the different materials used:

Carbon steel: High-strength carbon steel is suitable for high-pressure transportation. Paired with a 3PE anti-corrosion coating, it offers excellent results at a low cost.

Duplex stainless steel: Combines high strength with corrosion resistance, allowing for use in acidic environments containing H₂S. Its linear expansion coefficient is close to that of carbon steel, making it easy to weld.

Chromium-molybdenum alloy steel: Its primary performance characteristic lies in its high-temperature resistance, making it suitable for high-temperature oil product transportation in refineries. Normalizing treatment is required during production to eliminate residual stresses.

Oil line pipe is primarily used in petroleum pipelines. What are its specific application scenarios?

Oilfield production: Crude oil produced from oil wells is transported to gathering stations within the oilfield, enabling short-distance, low-pressure transportation.

Long-distance transportation: For interregional or interprovincial transportation, the pipeline design pressure is 8-12 MPa. Large-diameter oil line pipe is used for long-distance transportation to improve transportation efficiency.

In refineries: The interior wall is coated according to the medium being transported, while the exterior wall is coated with epoxy enamel. Small and medium diameters can be used to reduce operating costs.

FAQ

Q: What's your tem of the delivery?
A: Our ordinary delivery term is FOB Tianjin. We also accept EXW, CFR, CIF, DDP, DDU etc. We'll offer you the shipping charges and you can choose the one which is the most convenient and effective for you.

Q: Which shipping way can you provide?

A: We can provide shipping by sea, by train.

Q: What's your after-sale service?

A: Our quality warranty period is two year. Any quality problem will be solved to customer satisfactions.

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