Onshore LSAW (Longitudinal Submerged Arc Welded) pipe refers to a type of steel pipe used in onshore oil and gas pipelines. LSAW Pipes are manufactured by bending and welding steel plates or coils into a cylindrical shape, forming a longitudinal seam where the edges are then welded using submerged arc welding.

Key characteristics and features of onshore LSAW pipes

1. Construction: Onshore LSAW pipes are typically constructed from high-quality steel plates or coils. The steel material used is often carbon steel or low-alloy steel, selected for its strength, durability, and resistance to corrosion.

2. Longitudinal Seam: The longitudinal seam in LSAW pipes is created by welding the edges of the steel plates or coils. Submerged arc welding is commonly employed for this process, which involves the use of an electric arc and a granular flux to shield the weld area.

3. Size and Diameter: Onshore LSAW pipes are available in a range of sizes and diameters to accommodate various pipeline requirements. They can range from a few inches to several feet in diameter, with lengths typically ranging from 12 to 24 meters (40 to 80 feet).

4. Strength and Structural Integrity: LSAW pipes are known for their high strength and structural integrity, making them suitable for onshore pipeline applications. The longitudinal seam and welding process provide a strong bond, ensuring the pipe's ability to withstand high-pressure conditions and transport fluids or gases over long distances.

5. Resistance to External Factors: Onshore LSAW pipes are designed to withstand external factors and environmental conditions commonly encountered in onshore pipeline installations. They are typically coated with corrosion-resistant materials, such as fusion-bonded epoxy (FBE) or three-layer polyethylene (3LPE), to protect against corrosion and abrasion.

6. Compliance with Standards: Onshore LSAW pipes are manufactured to meet various industry standards and specifications, including those set by organizations such as the American Petroleum Institute (API), International Organization for Standardization (ISO), and other relevant regulatory bodies. Compliance with these standards ensures the quality, reliability, and safety of the pipes.

Onshore LSAW pipes play a crucial role in the transportation of oil, gas, and other fluids overland, connecting production areas to refining or distribution centers. Their robust construction, durability, and ability to handle high-pressure conditions make them a suitable choice for onshore pipeline projects.

More common applications of onshore LSAW pipes

1. Oil and Gas Transmission Pipelines: Onshore LSAW pipes are extensively used for the transportation of crude oil, natural gas, and other hydrocarbon products from production fields to processing plants, refineries, and distribution centers. These pipelines are critical for the efficient and safe movement of resources over long distances.

2. Water and Wastewater Pipelines: Onshore LSAW pipes are also utilized for the transmission of water and wastewater in municipal, industrial, and agricultural applications. They can be employed in water supply systems, irrigation networks, and sewage or wastewater treatment plants.

3. Industrial Applications: LSAW pipes find applications in various industrial sectors where the transportation of fluids, gases, or chemicals is required. This includes industries such as petrochemicals, power generation, mining, and construction, where LSAW pipes are used for conveying raw materials, process fluids, or waste materials.

4. Infrastructure Development: Onshore LSAW pipes play a vital role in the development of infrastructure projects. They are used for the construction of pipeline networks for utilities like natural gas distribution, oilfield gathering systems, and district heating systems.

5. Cross-Country Pipelines: Onshore LSAW pipes are commonly employed for cross-country pipelines, which involve the transportation of oil or gas across vast distances and varying terrains. These pipelines may traverse deserts, mountains, or other challenging landscapes, and LSAW pipes provide the strength and durability required to withstand such conditions.

6. Terminal and Storage Facilities: LSAW pipes are used in the construction of terminal facilities, such as storage tanks and terminals, where oil, gas, or other fluids are stored before further distribution or processing. These pipes connect the storage facilities with the transportation network, ensuring the efficient transfer of resources.

It's important to note that the specific application of onshore LSAW pipes may vary depending on factors such as the nature of the transported fluid, operating conditions, regulatory requirements, and project specifications. The sizes, wall thicknesses, and coatings of the LSAW pipes can be tailored to meet the specific needs of each application.