Pipe casing API jẹ iṣelọpọ ni ibamu si boṣewa API 5CT. O ti wa ni julọ igba ti a lo ninu ipamo ikole ise agbese
lati encase tabi dabobo IwUlO ila lati ni bajẹ.
Awọn pato:
Standard: API 5CT.
irin casing ati ọpọn paipu: 114.3-406.4mm
welded irin casing ati ọpọn oniho: 88.9-660.4mm
Lode Mefa: 6.0mm-219.0mm
Sisanra odi: 1.0mm-30 mm
Gigun: o pọju 12m
Ohun elo: J55, K55, N80-1, N80-Q, L80-1, P110, ati bẹbẹ lọ.
Asopọ okun: STC, LTC, BTC, XC ati asopọ Ere
O ti wa ni lilo pupọ ni awọn iṣẹ simenti lati ṣiṣẹ bi idaduro igbekalẹ fun odi ti epo ati awọn kanga gaasi tabi kanga. Oun ni
ti a fi sii sinu kanga kanga ati ti simenti ni aaye lati daabobo mejeeji awọn idasile abẹlẹ ati ibi-ikun daradara lati ṣubu ati
gba omi liluho laaye lati tan kaakiri ati isediwon lati waye.
Ipele irin akọkọ ti API 5CT: API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110. Eleyi International Standard
wulo si awọn asopọ wọnyi ni ibamu pẹlu ISO 10422 tabi API Spec 5B:
kukuru yika o tẹle casing (STC);
gun yika o tẹle casing (LC);
buttress o tẹle casing (BC);
awọn iwọn-ila casing (XC);
ọpọn ti ko ni ibinu (NU);
iwẹ inu ita (EU);
ọpọ iwẹ isẹpo (IJ).
Fun iru awọn isopọ bẹẹ, Ipele Kariaye yii ṣalaye awọn ipo ifijiṣẹ imọ-ẹrọ fun awọn asopọ ati aabo okun.
Fun awọn paipu ti o bo nipasẹ Ipele Kariaye yii, awọn iwọn, awọn ọpọ eniyan, awọn sisanra ogiri, awọn onipò ati awọn ipari ipari ti o wulo ni asọye.
Standard International yii le tun lo si awọn tubulars pẹlu awọn asopọ ti ko ni aabo nipasẹ awọn iṣedede ISO/ API.
Kemikali Tiwqn
| Ipele | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Kr≤ | Ni ≤ | Cu≤ | Mo≤ | V≤ | Als≤ |
| API 5CT J55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT K55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT N80 | 0.34-0.38 |
0.20-0.35 |
1.45-1.70 |
0.020 |
0.015 |
0.15 |
/ |
/ |
/ |
0.11-0.16 |
0.020 |
| API 5CT L80 | 0.15-0.22 |
1.00 |
0.25-1.00 |
0.020 |
0.010 |
12.0-14.0 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT J P110 | 0.26-035 |
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 |
0.020 |
Darí Properties
|
Irin ite |
Agbara ikore (Mpa) |
Agbara Fifẹ (Mpa) |
|
API 5CT J55 |
379-552 |
≥517 |
|
API 5CT K55 |
≥655 |
≥517 |
|
API 5CT N80 |
552-758 |
≥689 |
|
API 5CT L80 |
552-655 |
≥655 |
|
API 5CT P110 |
758-965 |
≥862 |
