Casing pipes and pup joints
The small-scale production of casing pipes and their landing joints on the basis of seamless and electric-welded pipes of various steel types, including a high-tensile one.
Steel grade: different steel grade.
Screw joints types: Trapezoidal, triangular, buttress thread and others.
Basic technical operations:
Thread cutting at the ends of pipes with an outer diameter from 102 to 245 mm
Coupling screwing-on with an outer diameter from 102 to 245 mm on a specialized machine with a thread tightening control
Hydrostatic testing of a pipe from 1.0 to 13.0 m in length with an outer diameter from 102 to 250 mm assembled with a coupling for sealing with a computer system for collecting and storing information; the maximum proof pressure is 75 MPa
Coating, indicating and palletizing of pipes
Basic dimensions of casing pipes:
| Outer diameter, mm |
Wall thickness, mm | Length, m |
| 102,0 | 6,5 | from 1 до 13 |
| 114,0 | 6,4; 7,4; 8,6 | |
| 146,1 | 6,5; 7,0; 7,7; 8,5; 9,5; 10,5; 10,7 | |
| 168,3 | 7,3; 8,0; 8,9; 10,6 | |
| 177,8 | 6,9; 8,1; 9,2; 10,4 | |
| 244,5 | 7,0; 7,3; 7,9; 8,9; 10,0 |
Pipes production is carried out in accordance with GOST R 53366-2009 and Specification 1321-003-63459751-2015751-2015 on the basis of collected quality certificates.