API 5CT Sizing System
Tus qauv casing qhov ntau thiab tsawg yog tswj hwm los ntawm API 5CT specification. Casing yog categorized los ntawm nws sab nraud txoj kab uas hla, thiab kev lag luam cia siab rau cov txheej txheem diameters siv rau txawv seem ntawm lub qhov dej: tus neeg xyuas pib, nto, nruab nrab, thiab ntau lawm. Rau txhua txoj kab uas hla, phab ntsa tuab yog xaiv los ntawm qhov hnyav nominal hauv phaus ib ko taw, uas qhia txog qhov xav tau ntawm lub siab thiab kev sib tsoo ntawm ntu.
Kev tsim khoom thiab me me -Diameter Casing
Kev tsim cov casing feem ntau siv 4-1/2 nti ntawm 114.3 hli nrog qhov hnyav ntawm 9.50 txog 13.50 phaus ib ko taw thiab phab ntsa ntawm 5.21 txog 7.37 hli; 5-1/2 nti ntawm 139.7 mm nrog qhov hnyav ntawm 14.00 txog 23.00 phaus ib ko taw thiab phab ntsa ntawm 6.20 txog 10.54 mm; thiab 7 nti ntawm 177.8 hli nrog qhov hnyav ntawm 20.00 txog 32.00 phaus ib ko taw thiab phab ntsa ntawm 6.91 txog 11.51 hli.
Intermediate thiab Technical Casing
Intermediate casing siv 7-5/8 nti ntawm 193.68 mm nrog qhov hnyav ntawm 26.40 mus rau 33.70 phaus ib ko taw; 9-5/8 nti ntawm 244.48 mm nrog qhov hnyav ntawm 36.00 txog 53.50 phaus ib ko taw thiab phab ntsa ntawm 8.94 txog 13.84 mm; thiab 10-3/4 nti ntawm 273.05 hli nrog qhov hnyav ntawm 40.50 txog 51.00 phaus ib ko taw.
Surface Casing thiab tus neeg xyuas pib
Nto casing thiab tus neeg xyuas pib siv 13-3/8 nti ntawm 339.72 hli nrog qhov hnyav ntawm 48.00 txog 68.00 phaus ib ko taw; 16 nti ntawm 406.4 hli nrog qhov hnyav ntawm 65.00 txog 75.00 phaus ib ko taw; thiab 20 nti ntawm 508 hli nrog qhov hnyav ntawm 94.00 txog 133.00 phaus ib ko taw thiab phab ntsa txog 16.13 hli.
Length Ranges thiab kev sib txuas
API standardizes ob leeg ntev: Range 1 yog 4.88 mus rau 7.62 m, Range 2 yog 7.62 txog 10.36 m, thiab Range 3 yog 10.36 txog 14.63 m, feem ntau yog rau cov hlua casing. Cov kev sib txuas kawg suav nrog cov xov luv luv ua ke, cov xov ntev txuas, lub taub hau xov txuas, thiab kev sib txuas hwm zoo nrog cov pa roj{10}} nruj seals rau siab - siab los yog qhov tob tob.
Kev Taw Qhia Xaiv
Casing phab ntsa thickness tsis yog ib tus lej tas; nws yog txiav txim los ntawm qhov tob tob, lub siab sab hauv, thiab ib puag ncig loads. Feem ntau cov casings muaj cov phab ntsa ntawm 5 thiab 16 hli, nrog cov phab ntsa tuab siv nyob rau hauv cov ntu sib sib zog nqus kom tiv thaiv kev tawg ntawm sab nraud hauv av siab thiab tawg los ntawm cov kua dej sab hauv.
Cov lus nug nquag
Q: Dab tsi yog qhov ntau thiab tsawg casing?
A: Ntau lawm casing ntawm 4-1/2, 5-1/2, thiab 7 nti; nruab nrab ntawm 7-5/8, 8-5/8, thiab 9-5/8; nto ntawm 10-3/4 thiab 13-3/8; tus neeg xyuas pib ntawm 16 thiab 20 nti.
Q: Yuav ua li cas tswj cov phab ntsa thickness?
A>Qhov tob tob, sab hauv siab, thiab ib puag ncig loads, xaiv los ntawm nominal hnyav ib ko taw.
Q: Dab tsi yog qhov feem ntau ntawm phab ntsa?
A: 5 mus rau 16 hli, txog 0.200 txog 0.625 nti.
Q: Ntev npaum li cas yog qhov ntev tshaj plaws?
A: Ntau yam 3, los ntawm 10.36 txog 14.63 m.
Q: Cov kev sib txuas dab tsi muaj?
A: STC, LTC, BTC, thiab premium gas -kev sib txuas nruj.
Q: Tus txheej txheem twg tswj cov casing?
A: API 5CT.
Rau API 5CT casing hais nrog qhov loj, qhov hnyav, thiab kev sib txuas yuav tsum tau ua,tiv tauj peb pab neeg muag khoom.
