Casing Pipe yog cov yeeb nkab loj-ntev uas ua haujlwm raws li cov txheej txheem khaws cia rau cov phab ntsa ntawm cov roj thiab cov qhov dej, lossis cov qhov dej zoo. Nws yog muab tso rau hauv ib lub qhov dej thiab cemented nyob rau hauv qhov chaw los tiv thaiv ob qho tib si subsurface formations thiab lub qhov dej ntawm collapsing thiab tso cai rau drilling kua circulate thiab extraction coj qhov chaw. Steel Casing Pipes muaj cov phab ntsa du & qhov muaj zog tsawg kawg nkaus ntawm 35,000 psi.
API 5CT tus qauv roj casing ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov roj zoo los ntawm kev puas tsuaj los ntawm cov roj ntiav ntiav thiab txhawb nqa kev thauj mus los ntawm cov roj thiab roj. Dab tsi ntxiv, cov yeeb nkab casing tuaj yeem txhawb nqa qhov hnyav ntawm lub taub hau txheej kom tiv thaiv kev tawg. API 5CT casing yeeb nkab kom ntseeg tau tias qhov kev vam meej ntawm tag nrho cov txheej txheem drilling, tom qab ntawd, thauj cov roj thiab roj los ntawm qhov drilling mus rau hauv av.
Khoom siv: J55, K55, L80, N80, P110
Loj: 2-1/2 ", 4 1/2", 5 1/2", 6 5/8", 7 ", 9 5/8" rau 20 ". / OD 60mm txog 508mm
Phab ntsa thickness: 4-16mm
Ntev: R1(4.88m-7.62m)/R2(7.62m-10.36m)/R3(10.36m-14.63)
Coupling: BTC (Buttress Xov Coupling)
STC (Stub (Short) Thread Connector),
LTC (Long Thread Connector)
NUE/EUE/VAM or no thread
Txuj: API spec 5CT / ISO11960
Daim ntawv pov thawj: API5L, ISO 9001: 2008, SGS, BV, CCIC
Kev Kho Hniav: Sab nrauv txheej txheej (dub pleev xim rau), cim raws li api 5ct stanard, kua roj vanish, roj
Dimension kam rau ua:
| Hom steel raj |
Sab nraud |
Phab ntsa Thickness |
| Cold-rolled tubes |
Tube loj (mm) |
Qhov siab (mm) |
Qhov siab (mm) |
| ＜114.3 |
± 0.79 hli |
－12.5％ |
| ≥114.3 |
－0.5％，＋1％ |
