Steel Casing Pipe Supplier in China

Pipe encasement is used to protect the pipeline from damage during construction.

The casing can maintain the stability and support of the well, isolate the soil and water source, and increase the service life of the well.

Ensure a good construction environment during drilling and prevent collapse and pollution.

Casing is the inside and outside of the pipe, which is physically isolated by the pipe body to ensure that the two positions have independent and stable different states.

Common types include black steel pipe, galvanized steel, stainless steel, PVC, HDPE, and fiberglass reinforced plastic pipes.

This needs to be distinguished according to the situation of the well. Steel pipe casing is harder and more durable, with a longer service life and a higher price. PVC is more corrosion-resistant, has a lower cost and is easy to install.

Balingsteel recommends different materials according to different use environments. We recommend carbon steel casing for deep water wells, petroleum casing such as API5CT for oil and gas wells, and PVC pipes for ordinary water wells. If there are special corrosion resistance requirements, we can use alloy or stainless steel and other materials.

Pipes are mainly used to transport fluids or materials, have a high degree of resistance to high pressure, and have strict requirements for other aspects. Casings mainly provide stable support and protection, usually with a larger diameter.

The diameter of casings varies according to different needs. The normal size for water wells is 4 inches, and the size for protection and reinforcement is about 16-28 inches. Other special uses are pending. BalingSteel can customize the diameter according to your needs.

The choice of casing size depends on the space required for internal protection equipment. If it is used for water wells or oil wells, it is necessary to confirm the soil and underground working environment of the construction.

Typical well casings range from 0.250″ to 0.500″ wall thickness. Of course, BalingSteel can customize the corresponding thickness according to your design requirements.

The wall thickness of 100mm (4-inch) steel pipe is usually 4.5mm-8.6mm.

Casings are widely used in water wells, oil and gas wells, public facilities crossing under roads and railways, tunnel construction, building foundations, bridge supports and industrial applications.

The service life of carbon steel casing provided by BalingSteel is about 30-70 years, but the different conditions of the well will affect its service life.

The length of the well casing is determined by your requirements. Usually, ordinary water wells are 20-300 feet, commercial water wells are 500 feet, and oil and gas wells need to look at the design of the project, usually more than 2000 inches.

A 7-inch (178mm) steel casing weighs approximately 20-35 pounds per foot (30-52 kg/m) depending on wall thickness. API 7″ casing at 23 lb/ft is common for oil wells.

According to the material, there are carbon steel, stainless steel, alloy steel, PVC, and fiberglass. According to the connection type, there are threaded and welded methods. According to the standard, there are API, ASTM, and AWWA standards.