Specifications of oil well casing

Dimension range(OD inch): 4-1/2---20

Dimension range(OD mm): 114.3---508　　

Standard: API SPEC 5CT

Pipe Type: Seamless (SMLS)

Main Steel Grade: H40, J55, K55, N80, N80Q, L80, T95, P110 etc

Type of Casing: Plain, BTC, STC, LTC, Other Premium Thread

Length:R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m)

Surface Treatment: Anti-corrosion Water Based Paint

Packing: Protection Caps on both ends and in bundles with steel strips and two tags as per export requirements

Application: Used as the architectural retainer for the walls of oil, gas wells