PRODUCT SPECIFICATION

1. Specification Range: Outer Diameter:114.3MM-508MM(41/2"-20") Wall Thickness:

5.21MM-16.13MM(9.5PPF-133PPF)

2.Material: H40, J55, K55,N80-1,N80-Q,L80-1,L80-9Cr,L80-13Cr, P110, Q125,etc.

3.Implementation criteria: API 5CT, GB, ISO 11960, GOST

4.Button Categories:STC,LTC, BTC,XCand Premium connection

5. Length:R1,R2,R3

6.Detection: NDT,etc. related rules of API 5CT and 5B

7. Type: Seamless Steel Pipe, Straight Seam Steel Pipe

Petroleum special pipes are mainly used for drilling oil and gas wells and oil and gas transportation. Oil casing is

mainly used to support the wellbore during drilling and after completion to ensure the normal operation of the whole

well. Oil casing is the lifeline to maintain oil well operation. Because of the different geological conditions, the stress

state of underground is complex, and the comprehensive action of tension, compression, bending and torsion stresses

acts on the pipe body, which puts forward higher requirements for the quality of casing itself. Once the casing itself is

damaged for some reason, it may lead to production reduction or even abandonment of the whole well,