Lining HDPE/EXPE anti-wear and anti-corrosive tubing is to reliably line ultra-high density polyethylene materials in the tubing through special technology, the lining layer can reduce the friction of the sucker rod and the tubing wall so as to reduce the abrasion of the pipe rod, and the service life of the tubing and rod system can be prolonged by more than three times, and it is a special tubing which is specially used for solving the problem of eccentrically wearing the oil well.
Materials |
Coefficient of friction μ |
Roughness Ra |
Steel |
0.4-0.8 |
1 |
Lining HDPE/EXPE |
0.16-0.23 |
0.2 |
The tubing hoops are coated with special coatings in the middle of their screw threads, the coatings not only can ensure threaded sealing, but also can improve the anti-corrosive performance of the hoop.
Number |
Specification |
Inner bore mm |
Outer diameter of outer hoop mm |
Size of gauge mm |
Working temperature℃ |
1 |
27/8 HDPE |
53 |
93.17 |
50.8*910 |
80 |
2 |
27/8 EXPE |
130 | |||
3 |
31/2 HDPE |
67 |
114.30 |
63.5*910 |
80 |
4 |
31/2 EXPE |
130 | |||
5 |
41/2 HDPE |
88 |
114.30 |
86.3*910 |
80 |
6 |
41/2 EXPE |
130 |
![]() 31/2″EUE.59×17.5F Mid Joint | ![]() 27/8″EUE.59×17.5F Mid Joint | ![]() 31/2″EUE.59×17.5FCable protector |
![]() 27/8″EUE.59×17.5FCable protector | ![]() Stuffing box | ![]() Sucker Rod Series |
![]() Tubing | ![]() Pumping Unit |