Russian
November 27, 2018
JSC Gazpromtrubinvest passed successfully a recertification audit of the QMS for the requirements of ISO 9001: 2015
April 27, 2018
25 years for the benefit of the development of the country's pipe industry.
June 8, 2017
JSC Gazpromtrubinvest and PAO Severstal confirmed their strategic partnership.

Production | Tubing

The main features:
1.
Pipes are made from coiled steel that ensures a narrow range of chemical composition, low percentage of impurities (sulfur, phosphorus) and inclusions, minimum difference in wall thickness in the final pipe.
2.
The specified wall thickness of the coiled steel, the-state-of-the-art technology and high precision of the rolls ensure much better precision of geometrical parameters in the final pipe compared to the same seamless pipe. That allows us to make more precise calculations of the production strings and as a result to lower the cost.
3.
In the pipe mill the inside and outside flash shall be removed. The outside flash is completely removed, the height of the inside flash shall not exceed 0.38 mm.
4.
100% of welded seam is annealed that ensures weld seam structure normalization and equal strength both of the weld seam and the base material.
5.
The technology and the equipment allow the application of round and buttress threads on pipe ends to national and international standards and licenses. New Premium threads (--1 to TU 1327-003-25955489-2010, --2 to 1327-011-25955489-2014) are implemented and patented.
6.
Use of specially developed steel groups allows us to produce pipe to be used in cold resistance (18) and corrosion resistance applications (15).
7.
Use of different steel groups (including 22, 25) and full-body heat treatment allows us to achieve the following grades:
  - , , , , , , , , (to GOST R 52203 and TU 14-3-31-2005);
  - J55, 72, N80Q, R95, L80 Type 1, 110 (to API Spec 5CT).
8.
As agreed with the customer, the pipe of intermediate sizes and grades can be manufactured.
9.
In order to protect pipe from corrosion during transit, the pipe is coated with the protective varnish with subsequent UV-drying at the unique system that ensures a quality coating and a long storage in severe weather conditions.

Standard

Outside diameter, mm

Wall thickness, mm

Grades

API Spec 5CT Specification for casing and tubing

GOST R 53366-2009 Steel pipe used as casing or tubing for wells in the oil and gas industry. Specification

GOST 31446-2017 Welded steel casing and tubing for the oil and gas industry

60,32

4,83

J55, K72, N80Q, R95, L80-1, P110

73,02

5,51

J55, K72, N80Q, R95, L80-1, P110

88,9

6,45

J55, K72, N80Q, R95, L80-1, P110

101,6

6,5

6,65

J55, K72, N80Q, R95, L80-1, P110

114,3

6,88

7,0

J55, K72, N80Q, R95, L80-1, P110

GOST R 52203-2004 Tubing with couplings. Specification

60,3

5,0

, , , ,

73,0

5,5

, , , ,

88,9

6,5

, , , ,

114,3

7,0

, , , ,

TU 14-3-31-2005 Welded steel tubing in Grades "", "", "", "", annealed and heat-treated full body of higher quality for normal and cold resistance applications with couplings

60,3

5,0

, , , , , , ,

73,0

5,5

, , , , , , ,

88,9

6,0

6,5

7,5

, , , , , , ,

101,6

6,0

6,5

, , , , , , ,

114,3

7,0

8,5

, , , , , , ,

U 1321-003-25955489-2008 Welded steel longitudinal tubing with gas-tight --1 thread connection and couplings

U 1327-003-25955489-2010 Welded steel longitudinal tubing with gas-tight --1 thread connection and couplings

U 1327-011-25955489-2014 Welded steel longitudinal tubing with gas-tight --2 thread connection and couplings

60,3

5,0

, , ,

73,0

5,5

7,0

, , ,

88,9

6,5

8,0

, , ,

101,6

6,0

6,5

, , ,

114,3

7,0

8,5

, , ,

U 14-3-27-2000 Welded pipe to be used in the manufacture of tubing

73,0

5,5

U 14-3-28-2001 Welded steel tubing

60,3

5,0

73,0

5,5

88,9

6,5

114,3

7,0

U 14-3-29-2002 Welded steel tubing with couplings for wells in gas and gas condensate deposits

60,3

5,0

73,0

5,5

88,9

6,5

114,3

7,0

See also:










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