Casingay isang malaking diyametro na tubo na nagsisilbing structural retainer para sa mga dingding ng mga balon ng langis at gas, o well bore. Ito ay ipinapasok sa isang well bore at sementado sa lugar upang maprotektahan ang parehong subsurface formations at ang well bore mula sa pagbagsak at upang payagan pagbabarena ng likido upang umikot at pagkuha ng lugar. Ang Steel Casing Pipe ay may makinis na pader at pinakamababang lakas ng ani na 35,000 psi.
Well Casingnagsisilbi rin sidewall. Mga Pamantayan at Teknikal na Kundisyon para sa Supply:API Spec 5CT ISO13680 Grade: J55, K55, N80-1,N80-Q, L80-1, L80-9Cr,L80-13Cr,C95, P110. Mga uri ng tread: NUE, EUE, VAM, STC, LTC, BTC, espesyal na clearance, XC,VAM TOP,NEW VAM.
Oil Casing Pipe:Ang mga casing ay ginagamit para sa pag-aayos ng pader ng balon o pababang butas, na may malawak na mga diyametro, ay maaaring nahahati sa mga casing ng konduktor, mga teknikal na pambalot at mga pambalot ng langis.
Mga gamit:Nagsisilbi rin ang Well Casing sa sidewall.
Mga Pamantayan at Teknikal na Kundisyon para sa Supply:API Spec 5CT
Grado ng pipe casing: J55, K55, N80-1,N80-Q, L80-1, L80-9Cr,L80-13Cr,C95, P110.
Mga uri ng tread ng pipe casing: STC, LTC, BTC, espesyal na clearance, XC,VAM TOP,NEW VAM.
Dimensyon: OD: 114.3-508mm WT: 5.21-16.13mm
Ano ang API 5CT casing?
Ginagamit ang API SPEC 5CT na pambalot ng balon sa pag-aayos sa dingding ng balon o pababang butas, na may mas malalawak na diyametro. Ang API SPEC 5CT ay maaaring nahahati sa conductor casing, technical casing at oil casing.
Ang API 5CT ay karaniwang teknikal na pagtutukoy para sa mga pipe ng casing ng bakal na ginagamit para sa mga balon ng langis sa mga industriya ng petrolyo at natural na gas.
Mga Karaniwang Marka
• J55/K55
• N80/N80Q/L80
• C90
• R95/T95
• P110/C110
• Q125
Mga koneksyon
Naaangkop ang API 5CT sa mga sumusunod na koneksyon na sumunod sa API SPEC 5B:
• SC: Maikling round thread na casing
• LC: Long ound thread casing
• BC: Buttress thread casing
• NU: Non-upset tubing
• EU: Panlabas na upset tubing
• IJ: Mga integral na koneksyon sa tubo
Haba:
Oil Casing | Saklaw 1 | Saklaw 2 | Saklaw 3 |
4.88~7.62 | 7.62~10.36 | 10.36~14.63 |
dimensyon:
Mga label | Panlabas na diameter D | Nominal linear mass T&C | Kapal ng pader 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——Payak na dulo; S——Maikling bilog na sinulid;L——Mahabang bilog na sinulid;B——Buttress thread;E——Extreme line. |
Mga Katangiang Mekanikal:
Grupo | Grade | Uri | Kabuuang pagpapahaba sa ilalim ng pagkarga % | Lakas ng ani Mpa | lakas ng makunat min MPa | max na tigas | ||
min | max | 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 | Lahat | 0.65 | 862 | 1034 | 931 | - | - |
Pagpaparaya
Mga uri ng bakal na tubo | Panlabas na Diameter | Kapal ng pader | |
Cold-rolled tubes | Mga laki ng tubo(mm) | Mga pagpapaubaya(mm) | Mga pagpapaubaya(mm) |
<114.3 | ±0.79 | -12.5% | |
Komposisyon ng kemikal
Pamantayan | Grade | Mga komposisyon ng kemikal%) | |||||||||
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 |
Mga Katangiang Mekanikal
Grade | Uri | Kabuuang pagpahaba sa ilalim ng pagkarga (%) | Lakas ng ani (min) | Lakas ng ani (max) | lakas ng makunat min Mpa | Hardness Max (HRC) | Hardness Max(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 | Lahat | 0.65 | 862 | 1034 | 931 | - | - |
Anti-Corrosion Water Based Paint