Type of oil casing pipe

　　Different types of casing are used in the process of oil exploitation: the surface oil casing protects the well from being polluted by shallow water and gas, supports the wellhead equipment and maintains the weight of other layers of casing. The technical oil casing separates the pressure of different layers so as to ensure the normal flow of drilling fluid and protect the Price List API 5L API 5CT Oil Casing Tubing Carbon Steel Pipe. So as to install anti blowout device, leak proof device and tail pipe in the well. Oil casings lead oil and gas from reservoirs below the surface It is used to protect drilling and separate drilling mud. In the production of petroleum casing, the outer diameter is usually 114.3 mm to 508 mm.

　　Protect the well from shallow water and gas, support the wellhead equipment and maintain the weight of other layers of casing.

　　The technical oil casing separates the pressure of different layers so as to ensure the normal flow of drilling fluid and protect the production casing. So as to install anti blowout device, leak proof device and tail pipe in the well.

　　Reservoir casing - the process of exporting oil and gas from reservoirs below the surface. It is used to protect drilling and separate drilling mud. In the production of petroleum casing, the outer diameter is usually 114.3 mm to 508 mm.

　　According to SY / t6194-96 "petroleum casing", there are two types of petroleum casing: short thread casing and its coupling, long thread casing and its coupling.