Ohišje
Ohišje je cev velikega premera, ki služi kot strukturno držalo za stene naftnih in plinskih vrtin ali vrtine. Vstavi se v vrtino in zacementira na mestu, da zaščiti podzemne formacije in vrtino pred zrušitvijo in omogočiti kroženje vrtalne tekočine in potek ekstrakcije.Cevi iz jeklenega ohišja imajo gladke stene in najmanjšo mejo tečenja 35.000 psi.
Ohišje vodnjaka služi tudi kot stranska stena.Standardi in tehnični pogoji za dobavo: API Spec 5CT ISO13680 Razred: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr,C95, P110.Vrste tekalne plasti: NUE, EUE, VAM, STC, LTC, BTC, posebna zračnost, XC, VAM TOP, NEW VAM.
Cev za ohišje olja: ohišja se uporabljajo za pritrditev stene vrtine ali navzdolnje luknje, ki imajo široke premere in jih lahko razdelimo na ohišja prevodnikov, tehnična ohišja in ohišja za olje.
Uporaba: Ohišje vodnjaka služi kot stranska stena.
Standardi in tehnični pogoji za dobavo: API Spec 5CT
Razred ohišja cevi: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, C95, P110.
Vrste tekalne plasti cevi: STC, LTC, BTC, posebna zračnost, XC, VAM TOP, NEW VAM.
Dimenzija: OD: 114,3-508 mm WT: 5,21-16,13 mm
dolžine:
Oljno ohišje | Razpon 1 | Razpon 2 | Razpon 3 |
4,88~7,62 | 7,62~10,36 | 10.36~14.63 |
Dimenzija:
Etikete | Zunanji premer D | Nazivna linearna masa T&C | Debelina stene t | J55 | N80 | L80 | C90 | P110 | Q125 | |
mm | kg/m | mm | K55 | 1/Q? | T95 | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
4 1/2 | 9.5 | 114.3 | 14.14 | 5.21 | PS | - | - | - | - | - |
4 1/2 | 10.5 | 114.3 | 15.63 | 5,69 | PSB | - | - | - | - | - |
4 1/2 | 11.6 | 114.3 | 17.26 | 6.35 | PSLB | PLB | PLB | PLB | PLB | - |
4 1/2 | 13.5 | 114.3 | 20.09 | 7.37 | - | PLB | PLB | PLB | PLB | - |
4 1/2 | 15.1 | 114.3 | 22.47 | 8.56 | - | - | - | - | PLB | PLB |
5 | 11.5 | 127 | 17.11 | 5.59 | PS | - | - | - | - | - |
5 | 13 | 127 | 19.35 | 6.43 | PSLB | - | - | - | - | - |
5 | 15 | 127 | 22.32 | 7.52 | PSLBE | PLBE | PLBE | PLBE | PLBE | - |
5 | 18 | 127 | 26.79 | 9.19 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
5 | 21.4 | 127 | 31.85 | 11.1 | - | PLB | PLB | PLB | PLB | PLB |
5 | 23.2 | 127 | 34.53 | 12.14 | - | PLB | PLB | PLB | PLB | PLB |
5 | 24.1 | 127 | 35,86 | 12.7 | - | PLB | PLB | PLB | PLB | PLB |
5 1/2 | 14 | 139.7 | 20.83 | 6.2 | PS | - | - | - | - | - |
5 1/2 | 15.5 | 139.7 | 23.07 | 6,98 | PSLBE | - | - | - | - | - |
5 1/2 | 17 | 139.7 | 25.3 | 7.72 | PSLBE | PLBE | PLBE | PLBE | PLBE | - |
5 1/2 | 20 | 139.7 | 29.76 | 9.17 | - | PLBE | PLBE | PLBE | PLBE | - |
5 1/2 | 23 | 139.7 | 34.23 | 10.54 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
5 1/2 | 26.8 | 139.7 | 39,88 | 12.7 | - | - | - | P | - | - |
5 1/2 | 29.7 | 139.7 | 44.2 | 14.27 | - | - | - | P | - | - |
5 1/2 | 32.6 | 139.7 | 48.51 | 15.88 | - | - | - | P | - | - |
5 1/2 | 35.3 | 139.7 | 52.53 | 17.45 | - | - | - | P | - | - |
5 1/2 | 38 | 139.7 | 56.55 | 19.05 | - | - | - | P | - | - |
5 1/2 | 40.5 | 139.7 | 60.27 | 20.62 | - | - | - | P | - | - |
5 1/2 | 43.1 | 139.7 | 64.14 | 22.22 | - | - | - | P | - | - |
6 5/8 | 20 | 168.28 | 29.76 | 7.32 | PSLB | - | - | - | - | - |
6 5/8 | 24 | 168.28 | 35.72 | 8,94 | PSLBE | PLBE | PLBE | PLBE | PLBE | - |
6 5/8 | 28 | 168.28 | 41.67 | 10.59 | - | PLBE | PLBE | PLBE | PLBE | - |
6 5/8 | 32 | 168.28 | 47.62 | 12.06 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
7 | 17 | 177.8 | 25.3 | 5,87 | - | - | - | - | - | - |
7 | 20 | 177.8 | 29.76 | 6.91 | PS | - | - | - | - | - |
7 | 23 | 177.8 | 34.23 | 8.05 | PSLBE | PLBE | PLBE | PLBE | - | - |
7 | 26 | 177.8 | 38,69 | 9.19 | PSLBE | PLBE | PLBE | PLBE | PLBE | - |
7 | 29 | 177.8 | 43.16 | 10.36 | - | PLBE | PLBE | PLBE | PLBE | - |
7 | 32 | 177.8 | 47.62 | 11.51 | - | PLBE | PLBE | PLBE | PLBE | - |
7 | 35 | 177.8 | 52.09 | 12.65 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
7 | 38 | 177.8 | 56.55 | 13.72 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
7 | 42.7 | 177.8 | 63.54 | 15.88 | - | - | - | P | - | - |
7 | 46.4 | 177.8 | 69.05 | 17.45 | - | - | - | P | - | - |
7 | 50 | 177.8 | 74,56 | 19.05 | - | - | - | P | - | - |
7 | 53.6 | 177.8 | 79,77 | 20.62 | - | - | - | P | - | - |
7 | 57.1 | 177.8 | 84,97 | 22.22 | - | - | - | P | - | - |
7 5/8 | 24 | 193,68 | 35.72 | 7.62 | - | - | - | - | - | - |
7 5/8 | 26.4 | 193,68 | 39.29 | 8.33 | PSLBE | PLBE | PLBE | PLBE | - | - |
7 5/8 | 29.7 | 193,68 | 44.2 | 9.52 | - | PLBE | PLBE | PLBE | PLBE | - |
7 5/8 | 33.7 | 193,68 | 50.15 | 10.92 | - | PLBE | PLBE | PLBE | PLBE | - |
7 5/8 | 39 | 193,68 | 58.04 | 12.7 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
7 5/8 | 42.8 | 193,68 | 63,69 | 14.27 | - | PLB | PLB | PLB | PLB | PLB |
7 5/8 | 45.3 | 193,68 | 67.41 | 15.11 | - | PLB | PLB | PLB | PLB | PLB |
7 5/8 | 47.1 | 193,68 | 70.09 | 15.88 | - | PLB | PLB | PLB | PLB | PLB |
7 5/8 | 51 | 193,68 | 76.19 | 17.45 | - | - | - | P | - | - |
7 5/8 | 55.3 | 193,68 | 82.3 | 19.05 | - | - | - | P | - | - |
8 5/8 | 24 | 219.08 | 35.72 | 6.71 | PS | - | - | - | - | - |
8 5/8 | 28 | 219.08 | 41.67 | 7.72 | - | - | - | - | - | - |
8 5/8 | 32 | 219.08 | 47.62 | 8,94 | PSLBE | - | - | - | - | - |
8 5/8 | 36 | 219.08 | 53.57 | 10.16 | PSLBE | PLBE | PLBE | PLBE | - | - |
8 5/8 | 40 | 219.08 | 59.53 | 11.43 | - | PLBE | PLBE | PLBE | PLBE | - |
8 5/8 | 44 | 219.08 | 65,48 | 12.7 | - | PLBE | PLBE | PLBE | PLBE | |
8 5/8 | 49 | 219.08 | 72,92 | 14.15 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
9 5/8 | 32 | 244,48 | 48.07 | 7.92 | - | - | - | - | - | - |
9 5/8 | 36 | 244,48 | 53.57 | 8,94 | PSLB | - | - | - | - | - |
9 5/8 | 40 | 244,48 | 59.53 | 10.03 | PSLBE | PLBE | PLBE | PLBE | - | - |
9 5/8 | 43.5 | 244,48 | 64.73 | 11.05 | - | PLBE | PLBE | PLBE | PLBE | - |
9 5/8 | 47 | 244,48 | 69,94 | 11,99 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
9 5/8 | 53.5 | 244,48 | 79,62 | 13.84 | - | PLBE | PLBE | PLBE | PLBE | PLBE |
9 5/8 | 58.4 | 244,48 | 86.91 | 15.11 | - | PLB | PLB | PLB | PLB | PLB |
9 5/8 | 59 | 244,48 | 88.4 | 15.47 | - | - | - | P | - | - |
9 5/8 | 64.9 | 244,48 | 96,58 | 17.07 | - | - | - | P | - | - |
9 5/8 | 70.3 | 244,48 | 104.62 | 18.64 | - | - | - | P | - | - |
9 5/8 | 75.6 | 244,48 | 112.5 | 20.24 | - | - | - | P | - | - |
10 3/4 | 32.75 | 273.05 | 48,74 | 7.09 | - | - | - | - | - | - |
10 3/4 | 40.5 | 273.05 | 60.27 | 8,89 | PSB | - | - | - | - | - |
10 3/4 | 45.5 | 273.05 | 67.71 | 10.16 | PSBE | - | - | - | - | - |
10 3/4 | 51 | 273.05 | 75.9 | 11.43 | PSBE | PSBE | PSBE | PSBE | PSBE | - |
10 3/4 | 55 | 273.05 | 82,59 | 12.57 | - | PSBE | PSBE | PSBE | PSBE | - |
10 3/4 | 60.7 | 273.05 | 90.33 | 13.84 | - | - | - | PSBE | PSBE | PSBE |
10 3/4 | 65.7 | 273.05 | 97,77 | 15.11 | - | - | - | PSB | PSB | PSB |
10 3/4 | 73.2 | 273.05 | 108.93 | 17.07 | - | - | - | P | - | - |
10 3/4 | 79.2 | 273.05 | 117,86 | 18.64 | - | - | - | p | - | - |
10 3/4 | 85.3 | 273.05 | 126,94 | 20.24 | p | |||||
11 3/4 | 42 | 298,45 | 62.5 | 8.46 | - | - | - | - | - | - |
11 3/4 | 47 | 298,45 | 69,94 | 9.53 | PSB | - | - | - | - | - |
11 3/4 | 54 | 298,45 | 80.36 | 11.05 | PSB | - | - | - | - | - |
11 3/4 | 60 | 298,45 | 89.29 | 12.42 | PSB | PSB | PSB | PSB | PSB | PSB |
11 3/4 | 65 | 298,45 | 96,73 | 13.56 | - | P | P | P | P | P |
11 3/4 | 71 | 298,45 | 105,66 | 14.78 | - | P | P | P | P | P |
13 3/8 | 48 | 339,72 | 71.43 | 8.38 | - | - | - | - | - | - |
13 3/8 | 54.5 | 339,72 | 81.1 | 9.65 | PSB | - | - | - | - | - |
13 3/8 | 61 | 339,72 | 90,78 | 10.92 | PSB | - | - | - | - | - |
13 3/8 | 68 | 339,72 | 101.19 | 12.19 | PSB | PSB | PSB | PSB | PSB | - |
13 3/8 | 72 | 339,72 | 107.15 | 13.06 | - | PSB | PSB | PSB | PSB | PSB |
16 | 65 | 406.4 | 96,73 | 9.53 | - | - | - | - | - | - |
16 | 75 | 406.4 | 111.61 | 11.13 | PSB | - | - | - | - | - |
16 | 84 | 406.4 | 125.01 | 12.57 | PSB | - | - | - | - | - |
16 | 109 | 406.4 | 162.21 | 16.66 | P | P | P | - | P | P |
18 5/8 | 87.5 | 473.08 | 130.21 | 11.05 | PSB | - | - | - | - | - |
20 | 94 | 508 | 139,89 | 11.13 | PSLB | - | - | - | - | - |
20 | 106.5 | 508 | 158,49 | 12.7 | PSLB | - | - | - | - | - |
20 | 133 | 508 | 197,93 | 16.13 | PSLB | - | - | - | - | - |
P——Raven konec;S——Kratek okrogel navoj; L——Dolg okrogel navoj; B——Oporni navoj; E——Skrajna linija. |
Mehanske lastnosti:
skupina | Ocena | Vrsta | Skupni raztezek pod obremenitvijo % | Meja tečenja Mpa | Natezna trdnost min MPa | Trdota maks | ||
min | maks | HRC | HBW | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
1 | J55 | - | 0,5 | 379 | 552 | 517 | - | - |
K55 | - | 0,5 | 379 | 552 | 655 | - | - | |
N80 | 1 | 0,5 | 552 | 758 | 689 | - | - | |
N80 | Q | 0,5 | 552 | 758 | 689 | - | - | |
2 | L80 | 1 | 0,5 | 552 | 655 | 655 | 23 | 241 |
L80 | 9Cr | 0,5 | 552 | 655 | 655 | 23 | 241 | |
L80 | 13Cr | 0,5 | 552 | 655 | 655 | 23 | 241 | |
C90 | 1?2 | 0,5 | 621 | 724 | 689 | 25.4 | 255 | |
C95 | - | 0,5 | 655 | 758 | 724 | - | - | |
T95 | 1?2 | 0,5 | 655 | 758 | 724 | 25.4 | 255 | |
3 | P110 | - | 0,6 | 758 | 965 | 862 | - | - |
4 | Q125 | Vse | 0,65 | 862 | 1034 | 931 | - | - |
Strpnost
Vrste jeklenih cevi | Zunanji premer | Debelina stene | |
Hladno valjane cevi | Velikosti cevi (mm) | Tolerance (mm) | Tolerance (mm) |
<114.3 | ±0,79 | -12,5 % | |
Kemična sestava
Standardno | Ocena | Kemične sestave(%) | |||||||||
API SPEC 5CT | J55 | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V |
K55 | 0,34~0,39 | 0,20~0,35 | 1.25~1.50 | ≤0,020 | ≤0,015 | ≤0,15 | ≤0,20 | ≤0,20 | / | / | |
N80 | 0,34~0,38 | 0,20~0,35 | 1.45~1.70 | ≤0,020 | ≤0,015 | ≤0,15 | / | / | / | 0,11~0,16 | |
L80 | 0,15~0,22 | ≤1,00 | 0,25~1,00 | ≤0,020 | ≤0,010 | 12.0~14.0 | ≤0,20 | ≤0,20 | / | / | |
P110 | 0,26~0,395 | 0,17~0,37 | 0,40~0,70 | ≤0,020 | ≤0,010 | 0,80~1.10 | ≤0,20 | ≤0,20 | 0,15~0,25 | ≤0,08 |
Mehanske lastnosti
Ocena | Vrsta | Skupni raztezek pod obremenitvijo (%) | Meja tečenja (min.) | Meja tečenja (maks.) | Natezna trdnost min Mpa | Največja trdota (HRC) | Največja trdota (HBW) |
J55 | - | 0,5 | 379 | 552 | 517 | - | - |
K55 | - | 0,5 | 379 | 552 | 655 | - | - |
N80 | 1 | 0,5 | 552 | 758 | 689 | - | - |
N80 | Q | 0,5 | 552 | 758 | 689 | - | - |
L80 | 1 | 0,5 | 552 | 655 | 655 | 23 | 241 |
L80 | 9Cr | 0,5 | 552 | 655 | 655 | 23 | 241 |
L80 | 13Cr | 0,5 | 552 | 655 | 655 | 23 | 241 |
C90 | - | 0,5 | 621 | 724 | 689 | 25.4 | 255 |
C95 | - | 0,5 | 655 | 758 | 724 | - | - |
T95 | - | 0,5 | 655 | 758 | 724 | 25.4 | 255 |
P110 | - | 0,6 | 758 | 965 | 862 | - | - |
Q125 | Vse | 0,65 | 862 | 1034 | 931 | - | - |
Protikorozijska barva na vodni osnovi