Tubing in API Spec 5CT
Regular size of tubing 2 3/8", 2 7/8" and 3 1/2" with grade J55 and N80 are generally available in stock. The Vaccum Insulated Tubing (VIT) are used for wells into which the steam will be pumped to lower the viscosity of the heavy crude oil.
Manufacturing method ERW, Hot-rolled Seamless
Upset method
3-step forging mold, full body normalization after upset
Size (OD)
1.9", 2 3/8", 2 7/8", 3 1/2", 4", 4 1/2"
Grade
J55, N80, L80,C90, T95, P110, Q125
API Connections
Non upset (NUE), External upset (EUE), Round thread (8RD and 10RD)
Premium Connections
HSM, TP-CQ, RJS (compatible with VAM and HSC)
Length range
Range 1, 2, 3
Technical modifications
Resilient seal (SR 13) with an extra Teflon ring seal.
BTC connection
Special clearance;
For extra clearance applications Special bevel;
20° bevel
Internally FBE coated;
Tungsten-nickel alloy electicplated anticrossion coating;
Titanium-zirconium alloy powder coating;
Vacuum nitriding coating;
Vacuum insulated;
HDPE liner
BTC connection
Special clearance;
For extra clearance applications Special bevel;
20° bevel
Internally FBE coated;
Tungsten-nickel alloy electicplated anticrossion coating;
Titanium-zirconium alloy powder coating;
Vacuum nitriding coating;
Vacuum insulated;
HDPE liner
