OCTG - Production Tubing for Oil Wells

Once the casing is run and held in place with cement, production tubing is run into the oilwell.

Joints of tubing are connected together with couplings to make up a tubing string. Running tubing into an oilwell is much the same as for running in casing, but tubing is smaller in diameter and is removable.

The prodution string provides a continuous bore from the reservoir to the wellhead and together with the other components of the production string, produces oil and gas at the surface.

As opposed to casing, production tubing is designed to enable quick, efficient, and safe installation, removal and re-installation.

Oil and gas is also produced more effectively through tubing than through larger-diameter production casing.


Below is a list of standard API5CT Tubing specifications.

We are able to supply all API specification tubing as well as non-API specifications for special situations, including those with semi-premium and premium connections.

We hold many combinations of common-spec’d tubing on the ground and can deliver these in quick turnaround.

Please contact us to discuss your requirements.

API5CT Tubing Specifications:
Sizes Outside Diameter (Inches) Corresponding Poundage (Pounds Per Foot)
  1.050 1.14 PPF to 1.54 PPF
  1.315 1.70 PPF to 2.24 PPF
  1.660 2.09 PPF to 3.07 PPF
  1.900 2.40 PPF to 5.15 PPF
  2.063 3.24 PPF to 4.50 PPF
  2-3/8 4.00 PPF to 7.45 PPF
  2-7/8 6.40 PPF to 11.50 PPF
  3-1/2 7.70 PPF to 17.00 PPF
  4 9.50 PPF to 22.20 PPF
  4-1/2 12.60 PPF to 26.10 PPF
Grades H40, J55, N80, N80Q, L80, C90, C95, T95, P110, 13CR

NUE (non-upset tubing),

EUE (external upset tubing),

IJ (integral joint tubing),

[Please enquire for semi-premium and premium connections.
See also our Metal One Connections.]
Lengths Range 1, Range 2 & Range 3

External Bare and Uncoated OR Externally Coated with Anti-Rust Mill Varnish

Plastic OR Metal Pin and Box Protectors.

Internal Plastic Coating OR Sleeves.

Mill Test Certificates

Issued in accordance with API Specification 5CT Eighth Edition.

Third Party Inspection can be performed on request at buyer’s care and expense.



Please fill in as many fields as you can in the form below for production tubing enquiry. If you’re unsure, then please leave blank. For multiple product enquiries, please email or call us directly.
Contact Details
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Specifications of Tubing Required


We are open to discussion on the way you might like to structure the deal, payment plans or what you might have in mind.

To talk to us about your requirements now, please contact:

Doreen Ong
General Manager
+65 6505-9206

Alternatively, just fill up our Enquiry Form on the right and we will be in touch with you by the next working day.