Product Introduction
Oil Casing is mainly used to support the wellbore,during drilling and after well completion,ensuring drilling operations and normal production of oil wells.It serves as the lifeline for oil-well operation.
Oil casing is applied in oil‑gas well exploration and hydrocarbon transportation.
Due to complex underground geological conditions, the pipe body is subjected to combined loads of tension, compression, bending and torsion, which imposes strict quality requirements on casing.
Once the casing gets damaged, it may lead to production reduction or even abandonment of the entire well.
Steel Grade：H40, J55, K55, N80-1, N80-Q, L80-1,L80-9Cr, L80-13Cr, P110, Q125 etc
SIZE：OD: 114.3MM—508MM(4 1/2"—20")；WT: 5.21MM-16.13MM(9.5PPF—133PPF)
Standard：API 5CT, GB, ISO11960, GOST
Thread Type：STC, LTC, BTC, XC and Premium connection
Length：R1, R2, R3
Service：NDT etc related rules of API 5CT and 5B
