High Anti-Collapse Casing – Product Introduction‌

‌Material & Technology‌
Developed with Cr-Mo-V medium carbon steel through precision alloy design1, this casing

seriesundergoes "normalization + quenching + high-temperature tempering" heat treatment to achieve optimal

strength-toughness balance (HRC≤22). The manufacturing process incorporates

continuous casting with vacuum degassing and electromagnetic stirring for ultra-low impurity content (S≤0.005%, P≤0.025%).

‌Key Performance‌

• ‌Collapse Resistance‌: Certified collapse strength ≥72.1 MPa (10,456 psi), suitable for deep wells exceeding 7,000m
• ‌Dimensional Precision‌: OD roundness ≤0.4%, wall thickness uniformity ≤10%
• ‌Impact Toughness‌: Transverse/longitudinal impact energy ratio ≥95%

‌Certifications & Applications‌

• Complies with API 5CT standards
• Ideal for western China oilfields with extreme formation pressures