Deep Well Casing:Petroleum casing for deep/ultra deep wells: For complex and ever-changing underground construction environments such as deep and ultra deep wells, special processes can be developed to enable materials to have high strength and excellent impact toughness. Recommended grades: V140 petroleum casing, V150 petroleum casing.

Collapse-resistance Casing:High resistance to collapse of oil casing For special well conditions such as shale gas, salt gypsum layers, mudstone layers, and oil layer sand production, it can generate significant or uneven external compression loads. These requirements can be met by optimizing the chemical composition, heat treatment process, mechanical properties, etc. of the material. Recommended grades: 80TT Collapse-resistance Casing, 95TT Collapse-resistance Casing, 110TT Collapse-resistance Casing

Premium Connection Casing and Tubing:HSM-1 Premium Connection、HSM-2 Premium Connection、HSM-2 HC Premium Connectio、HSFJ premium connection、HSTS premium connection、HSN premium connection、HSQR premium connection

Hydrogen  Sulfideresistance  casing and tubing:For oil and gas reservoirs with high sulfur content that are prone to casing corrosion and cracking, as well as oil and gas wells containing acidic gas CO2, material chemistry, heat treatment process, and mechanical properties can be adjusted and optimized to achieve resistance to hydrogen sulfide stress corrosion cracking and CO2 corrosion. Recommended grades: 80SS Hydrogen  Sulfideresistance Casing, 95SS Hydrogen  Sulfideresistance casing, 110SS Hydrogen  Sulfideresistance casing,80SS Hydrogen  Sulfideresistance tubing, 95SS Hydrogen  Sulfideresistance tubing, 110SS Hydrogen  Sulfideresistance tubing