API 5CT L80 Casing Thiab Tubing Pipe
API 5CT L80yog ib qho txwv tsis pub-yield steel qib siv rau casing thiab tubing hauv cov roj thiab roj qhov dej. Nws belongs rauPab pawg 2ntawm API 5CT specification thiab yog tsim los rauSour Service (H2S ib puag ncig) lossis lub qhov dej uas yuav tsum tau tswj kom tawv tawv kom tiv thaiv kev ua tsis tiav.
Muaj peb hom loj:L80 Qauv 1(carbon / hlau),L80 9Cr(9% Chromium), thiabL80 13Cr(13% Chromium rau siab CO2 tsis kam).
L80 casing thiab tubing nta lub zog tawm los ntawm 552-655 MPa thiab lub cev tsis muaj zog txog li 120 MPa, ua rau nws haum rau qhov dej tob ntawm 3,000 txog 5,000 meters.Nyem kom tau txais daim ntawv tshaj tawm cov ntaub ntawv pub dawb thiab kho qhov kev daws teeb meem downhole!
L80 Kev txheeb xyuas cov xim Bands
API 5CT siv xim coding los tiv thaiv kev sib xyaw cov qib sib txawv ntawm -site.
| Qib Steel | Yeeb Nkab Lub Cev Xim Band | Coupling Xim |
| L80 Qauv 1 | Ib pob liab + Ib pob paj yeeb | Tag Nrho Liab nrog Brown Band |
| L80 9Cr | Ib Liab + Ib Xim av + Ib Daj | Liab coupling nrog Brown & Yellow bands |
| L80 13Cr | Ib Liab + Ib Brown + Ib Xiav | Liab coupling nrog Brown & Blue bands |
Chemical Composition Table (Mass Fraction %)
L80-9Cr thiab 13Cr yog alloyed rau corrosion kuj, thaum L80-1 yog tus qauv carbon / alloy steel.
| Element | L80 Qauv 1 | L80 9Cr | L80 13Cr |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.43% | Tsawg dua lossis sib npaug li 0.15% | 0.15% - 0.22% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.90% | 0.30% - 0.60% | 0.30% - 1.00% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.020% | Tsawg dua lossis sib npaug li 0.020% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.010% | Tsawg dua lossis sib npaug li 0.010% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45% | 0.50% - 1.00% | Tsawg dua lossis sib npaug li 1.00% |
| Chromium (Cr) | - | 8.00% - 10.00% | 12.00% - 14.00% |
Mechanical Properties Table
Txhua hom L80 qhia tib lub zog uas yuav tsum tau ua.
| Khoom | Chav tsev | Tus nqi |
| Yield zog (Min) | psi (MPa) | 80,000 (552) |
| Yield zog (Max) | psi (MPa) | 95,000 (655) |
| Tensile zog (Min) | psi (MPa) | 95,000 (655) |
| Maximum Hardness | HRC | Tsawg dua lossis sib npaug rau 23.0 |
| Elongation | % | Muab xam raws li qhov chaw kuaj |
Dimension thiab Tolerances
| Yam khoom | Ua siab ntev |
| Sab nraud Diameter (OD) | OD <4-1/2": ± 0.031"; OD Ntau dua lossis sib npaug rau 4-1 / 2 ": +1.00% / -0.50% |
| Phab ntsa Thickness | -12.5% |
| Qhov hnyav (ib leeg sib koom) | +6.5% / -3.5% |
| Qhov hnyav (Batch / Lot) | -1.75% |
| Ntev | Ntau yam 1: 4.88-7.62m; Ntau yam 2: 7.62-10.36m; Range 3: >10.36m |
| Kev ncaj | < 0.2% of total pipe length |
API 5CT L80 Chaw tsim tshuaj paus
Kev tsim khoom:
Seamless (S):Qhov ntau tshaj plaws rau L80 kom paub meej cov qauv sib xws.
Electric Welded (EW):Tso cai rau L80 Hom 1, txawm tias tsawg dua hauv kev pabcuam qaub.
Kev kho cua sov (yuav tsum tau):
Txhua qib L80 yuav tsum tau kawmQuenching thiab Tempering (Q & T). Cov txheej txheem no ua kom muaj qhov zoo -cov qauv ua tau zoo thiab txwv qhov nyuaj ntawm cov hlau.
Kev sib txuas hom, xaus, thiab couplings
L80 feem ntau yog siv rau hauv qhov dej los yog qhov dej tob, yog li kev sib khi yog qhov tseem ceeb.
Xaus:Feem ntauTE (Threaded & Coupled).
Casing Connections:
STC / LTC:Standard 8-round threads.
BTC:Buttress xov rau high tensile loads.
Tubing kev sib txuas:
NU:Tsis yog- chim siab.
EUE:Sab Nraud Upset End (feem ntau).
Kev sib txuas hwm hwm:Rau cov pa roj- nruj raws li qhov yuav tsum tau ua hauv H2S qhov dej, "Premium" threads nrog hlau-rau-cov ntsaws ruaj ruaj (xws li VAM TOP) feem ntau siv.
Couplings:Yuav tsum yog tib qib (L80) thiab cua sov- kho (Q&T).
Kev tshuaj ntsuam xyuas rau L80
Vim L80 yog ib qho txwv - qib tawm, kev tshuaj xyuas yog nruj dua liJ55/K55:
Hardness Test (Critical):Yuav tsum tau kuaj kom ntseeg tau tias qhov siab tshaj plaws hardness tsis tshaj23 HRC. Qhov no yog qhov tseem ceeb tshaj plaws rau kev tiv thaiv H2S.
NDT (Tsis yog -Kev Ntsuas Kev Ua Phem):100% Ultrasonic (UT) lossis Electromagnetic (EMI) tshuaj xyuas kom pom cov kab nrib pleb lossis phab ntsa thinning.
Hydrostatic Test:Txhua qhov sib koom ua ke raug sim ntawm kev kub siab kom ntseeg tau tias cov pa tawm- pov thawj kev ua haujlwm.
Drift Test:Hla lub mandrel los ntawm cov yeeb nkab kom ntseeg tau tias sab hauv.
Visual & Dimensional:Tshawb xyuas qhov chaw nto, OD, thiab phab ntsa thickness.
API 5CT L80 OCTG Test Equipments
API 5CT L80 Roj zoo casing Hoobkas
API 5CT L80 Casing thiab Tubing daim ntawv pov thawj
FAQ
Puas yog L80 9Cr thiab L80 13Cr muaj raws li cov yeeb nkab welded?
L80 9Cr thiab L80 13Cr feem ntau yog muab nyob rau hauv daim ntawv ntawm seamless kav thiab feem ntau yog siv raws li casing thiab tubing nyob rau hauv cov roj thiab roj qhov dej. Muab hais tias lawv yuav tsum tiv taus cov kev kub ntxhov siab, qhov kub siab, thiab qhov chaw corrosive (xws li cov xwm txheej uas muaj CO₂ lossis H₂S), lawv cov kev tsim khoom nruj me ntsis ua raws li API 5CT specification.
Qhov twg tuaj yeem lees paub tus qauv thiab PSL cov cai rau L80?
Cov peev txheej thiab PSL cov cai rau Qib L80 tuaj yeem txheeb xyuas tau raws li API 5CT tus qauv, suav nrog cov khoom lag luam, txheej txheem tsim khoom, qhov loj me, thiab qib zoo.
Yam khoom: Casing, tubing, pup pob qij txha, thiab lwm yam.
Cov txheej txheem tsim khoom: Feem ntau seamless steel yeeb nkab; L80 9 Cr/13Cr qib feem ntau tsis yog tsim los siv cov txheej txheem vuam.
Dimensional Range: Sab nraud txoj kab uas hla 114.3-508 mm; phab ntsa thickness 5.21-16.13 mm.
PSL Qib:
PSL-1: Cov kev cai yooj yim, haum rau cov qauv kev ua haujlwm.
PSL-2: suav nrog cov kev cai ntxiv rau kev cuam tshuam toughness thiab tshuaj muaj pes tsawg leeg tswj.
PSL-3: Qib siab tshaj; yuav tsum tau ntawv pov thawj sulfur-resistance thiab yog npaj rau siv nyob rau hauv huab huab cua.
Cim npe nrov: api 5ct l80 casing thiab tubing yeeb nkab, Tuam Tshoj api 5ct l80 casing thiab tubing yeeb nkab manufacturers, lwm tus neeg, Hoobkas
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