High Quality API 5CT Pre-stressed Vacuum Insulation Tubing for oil and gas production

FOB Reference Price:Get Latest Price
US $30-200 / Meter | 200 Meter/Meters (Min. Order)
Supply Ability:
4000000 Ton/Tons per Year
Qingdao,Tianjin,Shanghai Port
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Quick Details
Grade Group:
API J55-API P110
API J55, API K55, API L80, API N80, API P110
5 - 10 mm
Section Shape:
Outer Diameter(Round):
73 - 139 mm
Place of Origin:
Shandong, China (Mainland)
Secondary Or Not:
Oil Pipe, Heavy oil production
Hot Rolled
Surface Treatment:
Special Pipe:
API Pipe
Alloy Or Not:
Product name:
L80 Pre-stressed Vacuum Insulation Tubing
special pipe:
API Pipe
Outer tube OD(in):
3 1/2,4 1/2,5,5 1/2,7
Inner Tube ID(in)::
2 3/8,2 7/8,3 1/2,4 1/2,5 1/2
Steel grade::
3 1/2 USS,4 1/2 BC,4 1/2 BC,5BC,5 1/2 BC,7 BC
Insulated grade::
D and E
Packaging & Delivery
Packaging Details
good package for High Quality API 5CT Pre-stressed Vacuum Insulation Tubing for oil and gas production
Delivery Time
Shipped in 30 days after payment

High Quality API 5CT Pre-stressed Vacuum Insulation Tubing for oil and gas production


Product Description


Product Explanation:

1. Reduces the heat loss, ensures the steam quality being injected into the oil formation as well as the depth of steam injection can be increased.

2. Minimizes heat stress on well casing and cement mantle, protect the casing from damage by high temperature.

3. During oil production it will provide superior insulation and greatly reduce the loss of heat energy


Our vacuum insulated tubing & casing steam injection provides a perfect solution for oilfield heavy oil recovery process. More heat can enter oil layer via the insulated tubing & casing steam injection. The steam at the bottom of the well can be dry, increasing heavy oil output. This also prevents any damage on casing mantle caused by the high temperature deformation, and at the same time increase the casing service lifespan.

Our vacuum insulated tubing & casing uses water-based fiber cloth material with a three grade vacuum pump equipment, automatic welding machine and MT. These guarantees a high degree of vacuum level that meets the insulation grades D and E.

These vacuum insulated tubing & casing use an effective get to ensure the tubing insulation grade do not decrease after a long time of outdoor storage. Our vacuum insulated tubing & casing are reusable. They retain desired insulation properties after being used several times. Our people are dedicated to the development of new products.



1. The pre-stress will compensate the tubing expansion caused by temperature difference between the inner and the outer tubes so as to ensure reliable operation under high temp.
2. Gas absorbing materials are packed inside the annulus to clean up harmful gases and maintain good insulating property whilst in service.


Insulated grade D and E.

Long lifetime

Inner tube and outer tube connections are both available.

Superior insulation properties.





SpecificationBasic parameter
Outer tube OD x Inner Tube ID


(in x in)

Steel gradeConnectionThread
3 1/2 x 2 3/8N80



Inner connection

Outer connection

Extreme line connection

3 1/2 USS
4 1/2 x 2 7/84 1/2 BC
4 1/2 x 3 1/24 1/2 BC
5 x 3 1/25BC
5 1/2 x 4 1/25 1/2 BC
7 x 5 1/27 BC
























Quality Policy

High quality and efficiency, Science and technology leading, Top level service, Customer satisfaction.

OCTG Inspection

OCTG inspection items are as follows: appearance inspection, dimension inspection, chemical composition inspection, performance test, drift test, straightness inspection, pipe magnetic leakage and ultrasonic flaw detection, standoff inspection, thread inspection, phosphating corrosion inspection and hydraulic water pressure test.

heat conductivity coefficient 

detection system

hydrostatic pressure 

testing system1

hydrostatic pressure 

testing system2

integration testing device

integration testing device

magnetic particle inspection

magnetic leak flaw detection

screw on and off test equipment

Packaging & Shipping