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        Short description
        A casing pipe is used at the time of well drilling and for water supply of private residence private residences.

        Casing Pipes and Couplings for them

        PURPOSE OF PIPES

        The casing pipes are used for lining the oil and gas wells in the process of their construction and operation.

        DISTINCTIVE FEATURES

        The casing pipes are joined together with the help of coupling or inserted (integral) thread connections.

        The casing pipes are manufactured in the following versions:

        • high-strength;
        • cold-resistant;
        • corrosion-resistant;
        • increased operating reliability;
        • PREMIUM high-seal thread connections;
        • special purpose;
        • standard version

        The casing pipes comply with the requirements of the following documents:

        • API Spec 5CT, Spec 5B;
        • GOST 632-80
        • Technical Conditions of Company Standards agreed with the Customer

        At the Customer’s request, the outer surface of casing pipes may be protected by an anticorrosive coating.

        All pipes are marked and stamped in compliance with the requirements of the Regulatory Technical Documentation in force.

        Name of Regulatory Technical Document Sizes of pipes Wall thickness, mm Length, m Strength group Type of thread connection
        Conventional Outer
        Casing Pipes and Couplings for them GOST 632-80 114 114.3 5.2; 5.7   Д Triangular
        6.4 63 to 11.7 Д, E, Л, M OTTM, OTTG
        7.4; 8.6; 10.2   Д, K, E, Л, M, P
        127 127 5.6   Д Triangular
        6.4 63 to 11.7 Д, E, Л, M OTTM, OTTG
        7.5; 9.2; 10.2   Д, K, E, Л, M, P
        10.7   Д, K, E, Л
        140 139.7 6.2   Д OTTM, OTTG
        7 63 to 11.7 Д, K, E, Л, M
        7.7; 9.2; 10.5   Д, K, E, Л, M, P
        146 146.1 6.5   Д OTTM, OTTG
        7.0; 7.7; 8.5; 9.5 63 to 11.7 Д, K, E, Л
        10.7   Д, K, E, Л, M, P
        168 168.3 7.3; 8.0; 8.9; 10.6; 12.1 63 to 11.7 ДЛE, Л, M OTTM, OTTG
        178 177.8 8.1; 13.7 63 to 11.7 Д, K, E, Л OTTM
        9.2; 10.4; 11.5; 12.7   Д, K, E, Л OTTM, OTTG
        194 193.7 7.6; 8.3 63 to 11.7 Д, K, E, Л OTTM
        9.5; 10.9; 12.7   Д, K, E, Л OTTM, OTTG
        219 219.1 7.7; 8.9; 10.2; 11.4; 12.7; 14.2 63 to 11.7 Д, K, E, Л, M, P OTTM, OTTG
        245 244.5 7.9; 8.9; 10.0; 11.1; 12.0; 13.8; 14.2; 15.9 63 to 11.7 Д, K, E, Л, M, P OTTM, OTTG
        273 273.1 8.9; 10.2; 11/; 12.6; 13.8; 15.1; 16.5 63 to 11.7 Д, K, E, Л, M, P OTTM, OTTG
        324 323.9 8.5   Д OTTM
        9.5 63 to 11.7 Д, E, Л
        11.0; 12.4; 14.0   Д, K, E, Л, M, P
        Casing and Tubing API Spec 5CT    114.3 6.35; 7.37; 8.56; 10.16 II, III length group H40; J55; K55; L80-1; N80; C90; R95; P110 Type BC TMK FMC
        127 6.43; 7.52; 9.19; 10.16; 11.10; 12.14; 12.70
        139.7 6.99; 7.72; 9.17; 10.54 TMKGF, TMK FMC, LC, SC, BC
        168.28 7.32; 8.94; 10.59; 12.06 H40; J55; K55; M65; L80-1; N80; N80Q; C90; R95; P110
        177.8 8.05; 9.19; 10.36; 11.51; 12.65; 13.72 H40; J55; K55; M65; L80-1; N80; N80Q; R95; P110 TMKGF, type BC TMK FMC
        193.68 8.33; 9.52; 10.92; 12.70 H40; J55; K55; N80; L80-1; L80- type Q; R95; P110
        219.08 8.94; 10.16; 11.43; 12.70; 14.15 BC plain, LC, SC, TMK-GF TMK FMC
        244.48 8.94; 10.03; 11.05; 11.99; 13.34; 15.11 H40; J55; K55; M65; N80; L80-1; L80- type Q; R95; P110 TMK FMC, TMK TTL-01 TMK-GF LC, SC, BC, plain
        273.1 8.89; 10.16; 11.43; 12.57; 13.84; 15.11 J55; K55; M65; N80; L80-1; L80- type Q; R95; P110 BC, plain, LC, SC, TMK FMC, TMK-GF
        339.7 9.65; 10.92; 12.19; 13.06 Type BC, LC, SC, TMK FMC, TMK-GF

        Steel Pipes Used as Сasing and Tubing for Wells in Oil and Gas Sector
        GOST R 53366-2009/ISO 11960:2004

        139.7   7.2 to 10.54 7.5 to 12.5 J55, K55, M65, N80 type Q, N80 type 1, L80 type 1, C95, P110, C90, T95, Q125 TMK FMC, TMK GF, TMK PF, TMK CWB, Buttress, LC, STC, OTTM, OTTG
        168.28   7.32 to 12.06
        178 177.8

        8.05;

        9.19; 10.36; 11.51; 12.65; 13.72

        194 193.68 9.52; 10.92; 12.7; 14.27; 15.11 15.88
        245 244.48 8.94; 10.03; 11.05; 11.99; 13.84; 15.11
        273 273.05 10.16; 11.43; 12.57; 13.84; 15.11
        340 339.72

        9.65; 10.92;

        12.19; 13.06

        MECHANICAL PROPERTIES OF CASING PIPES AS PER GOST 632-80 AND API Spec 5CT

        Strength groups Ultimate strength σB, MPa,
        at least
        Yield strength
        σT, MPa
        Modulus of elongation,
         δ, %, at least
        GOST 632-80
        Д (version A) 655 379 to 552 14.3
        K 687 At least 490 12
        E 689 552 to 758 13
        Л 758 655 to 862 12.3
        M 862 758 to 965 10.8
        P 1000 930 to 1137 9.5
        API Spec 5 CT/ISO 11960
        J55 517 379 to 552 *
        K55 655 379 to 552 *
        M65 586 448 to 586 *
        L80-1 655 552 to 655 *
        N80; N80Q 689 552 to 758 *
        C95 724 655 to 758 *
        P110 862 758 to 965 *
        *It is calculated according to the formula set forth in API Spec 5CT/IS0 11960
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