Linepipe is a type of steel pipe that is used to transport oil and gas. It is typically large in diameter and has a thick wall to withstand the high pressures involved in transporting these substances. Linepipe is also known as line pipe or oil country tubular goods (OCTG).

What is Linepipe Used For?

Linepipe is used in a variety of applications in the oil and gas industry, including:

  • Oil and gas pipelines: Linepipe is the primary material used to construct pipelines for transporting oil and gas from production sites to refineries and other processing facilities.

  • Offshore platforms: Linepipe is used to construct the legs and decks of offshore platforms, as well as the pipelines that connect these platforms to onshore facilities.

  • Drilling rigs: Linepipe is used to construct the derricks and other structures of drilling rigs.

  • Other applications: Linepipe is also used in a variety of other applications, such as:

    • Water pipelines

    • Gas pipelines

    • Steam pipelines

    • Industrial piping

Types of Linepipe

There are two main types of linepipe:

  • Seamless linepipe: Seamless linepipe is made from a single piece of steel that is heated and then rolled into a pipe. It is typically more expensive than welded linepipe, but it is also more durable and has a longer lifespan.

  • Welded linepipe: Welded linepipe is made from two pieces of steel that are welded together. It is typically less expensive than seamless linepipe, but it is also less durable and has a shorter lifespan.

Linepipe Grades

Linepipe is available in a variety of grades, each with its own specific properties. The most common grades of linepipe are:

  • API 5L: This is the most common grade of linepipe used in the oil and gas industry. It is available in a variety of grades, each with its own specific properties.

  • ASTM A106: This grade of linepipe is typically used for low-pressure applications.

  • ASTM A333: This grade of linepipe is typically used for high-pressure applications.

Linepipe Fittings

Linepipe fittings are used to connect sections of linepipe together. They are available in a variety of types, including:

  • Elbows: Elbows are used to change the direction of a linepipe.

  • Tees: Tees are used to branch a linepipe.

  • Couplings: Couplings are used to connect two sections of linepipe together.

  • Flanges: Flanges are used to connect linepipe to other components, such as valves and pumps.

Linepipe Coatings

Linepipe coatings are used to protect linepipe from corrosion. They are typically applied to the inside and outside of the pipe. Common linepipe coatings include:

  • Epoxy coatings

  • FBE coatings

  • Coal tar enamel coatings

Linepipe Inspections

Linepipe inspections are used to ensure that linepipe is safe for use. They are typically performed by third-party inspectors. Common linepipe inspections include:

  • Visual inspections

  • Dimensional inspections

  • Hydrostatic tests

  • Radiographic tests

  • Ultrasonic tests

Linepipe is a vital component of the oil and gas industry. It is used to transport oil and gas from production sites to refineries and other processing facilities. Linepipe is available in a variety of grades, types, and sizes. It is important to select the right linepipe for the specific application. Linepipe inspections and maintenance are also important to ensure that linepipe is safe for use.

I hope this information is helpful. If you have any questions, please feel free to contact us.

About Us

We are a leading supplier of linepipe in the oil and gas industry. We offer a wide variety of linepipe products, including seamless and welded linepipe, in a variety of grades and sizes. We also offer a variety of linepipe services, including linepipe inspections and maintenance. We are committed to providing our customers with the highest quality linepipe products and services.

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If you have any questions about linepipe, please contact us. We would be happy to answer any questions you may have.