API 5CT K55 BTC Casing
Raws li API 5CT tus qauv,K55 BTC casingyog lub siab -lub zog carbon steel structural yeeb nkab rau kev tsim kho zoo, haum nrog trapezoidal buttress xov txuas (BTC). Nws yog lub hom phiaj- tsim los rau kab cov qhov dej hauv qhov dej, roj thiab roj qhov dej: nws txhawb nqa lub qhov dej ntawm lub qhov dej kom ruaj khov, tiv thaiv qhov borehole phab ntsa tawg, tiv thaiv cov khoom siv sab nraud ua rau lub qhov dej, thiab muab kev ntseeg siab siab tensile lub zog uas ua tau raws li qhov xav tau ntawm kev sib sib zog nqus - txoj hlua zoo.
API 5CT K55 BTC Casing Specification
| Yam khoom | Kev piav qhia |
| Txuj | API Spec 5CT (Tswj tsab) |
| Qib | K55 |
| Xov Hom | BTC (Buttress xov txuas) |
| Yam khoom | Casing (Structural Support yeeb nkab) |
| PSL Qib | PSL-1 (Standard), PSL-2 |
| Qhov Loj | 4-1 / 2 "mus rau 20" (Sab nraum txoj kab uas hla) |
| Ntev Ntev | R1 (4.88–7.62m), R2 (7.62–10.36m), R3 (10.36–14.63m) |
Chemical Composition & Mechanical Properties
Chemical Composition (Max%)
| Qib | Phosphorus (P) | Sulfur (S) | Cov pa roj carbon / Manganese |
| K55 | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% | Chaw tsim tshuaj paus xaiv (Carbon steel) |
Mechanical Properties
| Qib | Yield zog (psi) | Yield zog (MPa) | Tensile zog (psi) | Tensile zog (MPa) |
| K55 | 55,000 - 80,000 | 379 - 552 | Ntau dua lossis sib npaug li 95,000 | Ntau dua lossis sib npaug rau 655 |
| Lus Cim: Thaum K55 thiab J55 muaj tib lub zog tawm los, K55 muaj zog tensile ntau dua. |
Dimensions & Tolerances
Common BTC Casing Dimensions
| OD (Inches) | Qhov hnyav (lb / ft) | Phab ntsa Thickness (mm) | Txoj kab uas hla (mm) |
| 4-1/2" | 10.50 | 5.21 | 99.19 |
| 5-1/2" | 15.50 | 6.48 | 122.56 |
| 7" | 23.00 | 8.05 | 157.07 |
| 9-5/8" | 36.00 | 8.94 | 222.12 |
Tolerances
| Parameter | Tolerance txwv |
| Sab nraud txoj kab uas hla | ± 0.75% ntawm OD (rau cov kav dej ntau dua lossis sib npaug rau 4-1 / 2 ") |
| Phab ntsa Thickness | - 12.5% |
| Qhov hnyav | + 6.5% / - 3.5% |
| Ntev | Tsis pub dhau qhov teev (R1, R2, lossis R3) |
Xim Coding
Raws li API 5CT tus qauv:
Lub cev lub cev: Ob Lub Paj Ntsuab Ntsuab.
Kev sib txuas: Tag nrho cov coupling yog pleev xim rauNtsuab Ntsuab.
Xaus thiab kev sib txuas
BTC Couplings: Threaded tes tsho los txuas ob lub casing pob qij txha.
Float Shoes / Float Collars: Muab tso rau hauv qab rau kev ua haujlwm cementing.
Centralizers: Txuas mus rau OD rau nruab nrab lub casing hauv lub qhov.
Crossover: Hloov ntawm BTC mus rau lwm hom xov (piv txwv li, LTC lossis STC).
Kev tsim khoom
tsim: Tsim los ntawmSeamless (SMLS)los yog Electric Resistance Vuam (ERW).
Xov Txiav: BTC (Buttress) threads yog CNC -machined. Lub trapezoidal xov profile tso cai rau siab nro.
Kev Ntsuas Hydrostatic: Txhua qhov sib koom ua ke yog pressurized los xyuas kom meej.
Txheej: kua roj vanish lossis anti- xeb roj yog siv rau saum npoo.
Kev kho cua sov
Rau Qib K55, cov chaw tsim khoom tuaj yeem xaiv:
Raws li - dov(Tsis tas yuav tsum tau kho cua sov).
Normalized (N).
Normalized thiab Tempered (N&T).
Quenched thiab Tempered (Q & T).
Kev tshuaj xyuas (Quality Control)
Kev tshuaj xyuas qhov muag: Deg defects, dents, los yog ncaj.
NDT (Tsis yog -Kev kuaj kev puas tsuaj): Ultrasonic los yog Sib Nqus Particle kuaj rau cov kab nrib pleb.
Kev tshuaj xyuas xov: Gauging xov qhov siab, lead, thiab taper.
Drift Test: Yuav tsum tau hla ntawm lub mandrel kom ntseeg tau tias kev tshem tawm sab hauv.
Daim ntawv thov
Nto Casing: Txhawm rau tiv thaiv thaj chaw dej tshiab thiab txhawb nqa lub taub dej.
Intermediate Casing: Txhawm rau cais qhov siab - siab lossis tsis ruaj khov pob zeb tsim.
Borewells: Loj txoj kab uas hla kev txhawb nqa rau kev nqus dej tob.
Roj & Roj: Standard casing rau ntiav mus rau nruab nrab - qhov tob hydrocarbon qhov dej.
K55 BTC Casing vs Tubing
| Feature | K55 BTC Casing | K55 EUE/NUE Tubing |
| Muaj nuj nqi | Structure Support (Liab) | Kev thauj mus los (Fluid Transport) |
| Txoj kab uas hla | Feem ntau> 4-1/2 " | Feem ntau Tsawg dua los yog sib npaug rau 4-1/2 " |
| Kev sib txuas | BTC (Trapezoidal threads) | EUE (Upset) los yog NUE (Tsis- chim siab) |
| Kev teeb tsa | Cemented nyob rau hauv qhov chaw | Ncua tseg, tshem tau |
K55 BTC vs J55 Sib piv
| Feature | J55 | K55 | Qhov txawv |
| Yield zog | 55 - 80 tsi | 55 - 80 tsi | Ib yam |
| Tensile zog | Ntau dua lossis sib npaug li 75 ksi | Ntau dua lossis sib npaug li 95 ksi | K55 muaj zog heev |
| Xim Band | 1 Green Band | 2 Green Bands | Visual Identification |
| BTC Compatibility | Feem ntau | Feem ntau | - |
Txawm hais tias lawv cov txiaj ntsig muaj zog zoo ib yam, K55 feem ntau yog siv hauv cov roj thiab roj qhov dej -ib puag ncig tus yam ntxwv los ntawmsiab dua thiab kub-thaum J55 feem ntau siv hauvdej qhov dej thiab qhov dej irrigation.
API 5CT K55 BTC Casing nta
Siab Tensile Capacity: CovBTC (Buttress)xov yog trapezoidal, uas tiv thaiv "rub- tawm" tsis ua haujlwm nyob rau hauv cov khoom hnyav hauv qhov dej tob.
Ua kom yooj yim -up: BTC threads yog tsim los kom yooj yim sib dhos thiab sib dhos ceev ntawm lub rig.
Siab zog - rau - Qhov hnyav piv: K55's 95 ksi tensile zog tso cai rau ntev casing hlua piv rau J55.
Ntau yam: Tau tshaj cov txheej txheem cementing thiab cov cuab yeej zoo.
Tus nqi -Cov: Muab cov qauv kev ntseeg siab yam tsis muaj tus nqi siab ntawm cov qib hwm alloy.
API 5CT K55 BTC Casing txheej txheem kab
API 5CT K55 BTC OCTG test equipments
API 5CT K55 BTC roj lub teb chaws tubular khoom daim ntawv pov thawj
FAQ
Dab tsi yog qhov txawv ntawm BTC thiab LTC xov?
BTC yog buttress xov (Buttress Thread Coupling) nrog lub taub hau xov profile. Nws nta kev sib txuas muaj zog dua, zoo dua - lub zog tiv thaiv thaum lub sij hawm ua - nce, thiab muaj zog sealing muaj peev xwm, thiab feem ntau yog siv rau siab - kev ua haujlwm siab xws li qhov dej tob thiab ultra- qhov dej tob; LTC yog cov xov ntev puag ncig (Long Thread Coupling) nrog arc - zoo li tus xov profile. Nws khav theeb ua haujlwm nyuaj thiab cov nqi tsim khoom, tab sis nws qhov kev sib txuas lub zog thiab kev sib khi ua haujlwm tsis zoo rau cov BTC, thiab feem ntau siv tau rau nruab nrab - qhov dej ntiav thiab qis - kev ua haujlwm siab.
API tus qauv rau casing yog dab tsi?
Cov tub ntxhais thiab feem ntau siv API tus qauv rau roj & roj zoo casing yog API 5CT , nws qhia txog cov kev cai rau casing, tubing, thiab txuam accessories, nrog rau qhov ntev ntev, cov khoom ua tau zoo, kev sib txuas zoo, thiab 3 cov khoom specification qib (PSL-1 txog PSL-3).
Tsis tas li ntawd, API 5B kuj tau sib phim nrog nws los qhia cov qauv rau kev ua cov xov, ntsuas thiab tshuaj xyuas cov xov casing.
Cov casings yog dab tsi?
Raws li qhov chaw thiab kev ua haujlwm nyob rau hauv cov qauv zoo ntawm cov roj thiab cov roj qhov dej, cov casings feem ntau muab faib ua 4 hom:
Conductor casing: Thawj txheej ntawm casing rau cais seawater / xoob nto strata thiab qhia drilling
Nto casing: Seal ntiav cov strata tsis ruaj khov thiab cov txheej dej los txhawb lub taub dej thiab cov casings tom ntej
Intermediate (technical) casing: cais cov complex uncontrollable strata kom ntseeg tau tias du drilling
Production (roj txheej) casing: Seal roj, roj thiab dej txheej los tsim kom ntev - cov roj thiab roj ntau lawm
Cim npe nrov: api 5ct k55 btc casing, Tuam Tshoj api 5ct k55 btc casing manufacturers, lwm tus neeg, Hoobkas
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