Petroleum Casing and Tubing
steel casing pipe
Standard:
API 5CT
Application:
Tubing is used to extracting petroleum and natural gas from a well
Casing serves as walls of a well.
Coupling:
Standard Coupling
Special Clearance Coupling
Special Bevel Coupling
Pup Joint or Connector:
All kinds of size, thread or their combination of tubing and casing are supplied.
Dimension Tolerances:
Outside diameter, Wall Thickness and Weight Tolerances
Item |
|
Tolerances |
Outside Diameter |
Pipe Body |
D≤101.6mm +0.79mm |
|
D≥114.3mm +1% -0.5% | ||
Coupling |
±1% |
|
Wall Thickness |
-12.5% |
|
Weight |
Single Lengths |
+6.5% ~ -3.5% |
Carload Lots |
-1.75% |
|
petroleum casing and tubing
certificates
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