API 5CT L80-13Cr Casing Pipe
API 5CT L80-13Cr Casing Pipe yog dab tsi?
API 5CT L80-13Cryog ib tug siab -kev ua tau zoo, corrosion{1}}resistant alloy (CRA) casing yeeb nkab nyob rau hauv pab pawg 2 ntawm API 5CT specification. Nws yog ibmartensitic stainless hlaumuaj kwv yees li12% mus rau 14% Chromium.
Tsis zoo li tus qauvL80-1(carbon steel), L80-13Cr yog tsim tshwj xeeb rau cov qhov dej nrog siabCov pa roj carbon dioxide (CO2)concentrations. Nws muab kev tiv thaiv zoo rau CO2-induced pitting thiab dav corrosion, ua kom ntev lub neej ntawm txoj hlua zoo nyob rau hauv acidic ib puag ncig uas carbon steel yuav poob sai heev.
Defeat CO2 Corrosion Ib zaug thiab Rau Txhua Tus!Thov kev daws teeb meem rau API 5CT L80-13Cr Casing Hnub no.
API 5CT L80-13Cr oilfield casing yeeb nkab Specification
Txheem:API Spec 5CT (Tswj tsab)
Qib:L80 (Controlled hardness qib)
Hom:13Cr (Martensitic Stainless hlau)
Kev tsim khoom: Seamless (SML) nkaus xwb. 13Cr tsis tuaj yeem welded rau daim ntawv thov casing.
Kev kho cua sov: Quenched thiab Tempered (Q & T)los xyuas kom meej cov qauv martensitic refined thiab tswj hardness.
Hardness txwv:nruj me ntsis tswj rauTsawg dua lossis sib npaug li 23 HRClos tiv thaiv Sulfide Stress Cracking (SSC).
API 5CT L80-13Cr steel roj casing yeeb nkab Xim Code
API siv cov txheej txheem xim tshwj xeeb los tiv thaiv kev teeb tsa kev teeb tsa:
Lub cev lub cev: Ib Leeg Liab + Ib Lub Xim Xim Xim + Ib Band Daj.
Couplings:Tag nrho cov coupling yog pleev xim rauLiabnrog aXim avstrip thiab aDajkab txaij.
L80-13Cr OCTG Casing PipeChemical Composition thiab Mechanical Properties
Chemical Composition (Mass Fraction, %)
Cov ntsiab lus Chromium siab yog "tsis pub leejtwg paub" rau nws cov corrosion kuj.
| Element | Kev xav tau |
| Cov pa roj carbon (C) | 0.15% – 0.22% |
| Chromium (Cr) | 12.0% – 14.0% |
| Manganese (Mn) | 0.30% – 1.00% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.00% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.020% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.010% |
| Nickel (Ni) | Tsawg dua lossis sib npaug li 0.50% |
Mechanical Properties (Cov ntaub ntawv-Tsav)
| Khoom | Tus nqi (Imperial) | Tus nqi (Metric) |
| Yield zog | 80,000-95,000 psi | 552-655 MPa |
| Tensile zog (Min) | 95,000 psi | 655 MPa ua |
| Hardness (Max) | 23 HRC | 241 HWB |
| Elongation | Formula-raws li | Min 10-15% nyob ntawm qhov loj me |
L80-13Cr casing yeeb nkabLoj Table (Common Sizes)
13Cr cov khoom kim heev, yog li nws feem ntau yog siv rau cov hlua ntau lawm (tubing) los yog hauv qab ntawm ib txoj hlua casing.
| OD (inch) | Qhov hnyav (lb / ft) | Phab ntsa Thickness (mm) | Sab hauv Dia (mm) | Txoj kab uas hla (mm) |
| 4-1/2" | 12.60 | 6.88 | 100.53 | 97.36 |
| 5-1/2" | 17.00 | 7.72 | 124.26 | 121.08 |
| 7" | 26.00 | 9.19 | 159.41 | 155.45 |
| 9-5/8" | 40.00 | 10.03 | 224.42 | 220.45 |
| 13-3/8" | 68.00 | 12.19 | 315.32 | 311.35 |
L80-13Cr Roj zoo casing yeeb nkabCov yam ntxwv tseem ceeb
Zoo heev CO2Kuj:Tsim cov txheej txheem Chromium Oxide passive uas tiv thaiv huab hwm coj - poob corrosion.
Kev tswj nruj Hardness:23 HRC txwv kom ntseeg tau tias cov yeeb nkab tsis tawg dhau.
Siab zog - rau - Qhov hnyav piv:Tso cai rau cov phab ntsa nyias dua J55 / K55 thaum tuav 80ksi lub zog.
Premium Threading Compatibility:Feem ntau ua ke nrogHwm Kev Sib Txuas(Npaj-Tight) vim 13Cr feem ntau siv rau siab - siab roj ntau lawm.
L80-13Cr OCTG Casing PipeDaim ntawv thov
L80-13Cr yog tus qauv kev lag luam rau:
CO2Rich Wells:Qhov twg CO2ib nrab siab tshaj 30 psi.
Wet Gas Wells:Qhov twg noo noo thiab CO2tsim carbonic acid.
Offshore & Deepwater Wells:Qhov twg tus nqi ntawm kev cuam tshuam yog siab heev, yuav tsum tau ntev -cov ntaub ntawv durability.
Geothermal Wells:Ib puag ncig nrog kub kub thiab corrosive brine.
Nco tseg:Nws yogTSIS TAUhaum rau siab H2S (kub) ib puag ncig lossis siab -chloride ib puag ncig ntawm qhov kub siab heev, vim nws yuav raug kev nyuaj siab Corrosion Cracking (SCC).
Kev soj ntsuam yuav tsum tau
Vim yog qhov tseem ceeb ntawm CRA cov ntaub ntawv, kev tshuaj xyuas yog dav:
Kev kuaj Hardness:100% kev tshuaj xyuas kom ntseeg tau tias tsis muaj qhov chaw tshaj23 HRC.
Kev kuaj ultrasonic (UT):Tag nrho -kev tshuaj xyuas lub cev kom pom cov kev sib txuas sab hauv lossis qhov ntev / qhov tsis xws luag.
Electromagnetic Inspection (EMI):Txhawm rau txheeb xyuas qhov chaw thiab nyob ze -surface imperfections.
Hydrostatic Test:Txhua qhov sib koom ua ke raug sim rau qhov siab ntau tshaj 7, 000+ psi kom ntseeg tau tias muaj kev sib khi.
Kev tshuaj xyuas qhov muag:Tshwj xeeb tab tom nrhiav rau saum npoo "kos" lossis "galling," raws li 13Cr yog qhov ua rau muaj kev puas tsuaj ntau dua li cov hlau.
Drift Test:Siv 13Cr-tshaj mandrel los xyuas kom meej qhov kev tshem tawm sab hauv tsis muaj kev cuam tshuam.
GNEE API L80-13Cr Casing Pipe txheej txheem Kab
GNEE API 5CT L80-13Cr OCTG Pipe Test Equipments
GNEE API 5CT L80-13Cr Oil Well Casing Pipe daim ntawv pov thawj
FAQ
Qhov txawv ntawm L80 yog dab tsi?
Hauv qabAPI 5 CTspecification, muaj peb lub ntsiab ntawm L80 qib casing thiab tubing, txawv los ntawm lawv cov tshuaj muaj pes tsawg leeg thiab corrosion kuj:
L80-1 (Standard Carbon Steel):
Khoom siv:Tsawg- carbon hlau alloy.
Lub hom phiaj:Tshwj xeeb tsim rauKev pab cuam (H2S ). Nws muaj qhov tswj tau siab tshaj plaws (tsawg dua lossis sib npaug li 23 HRC) los tiv thaiv Sulfide Stress Cracking.
L80-9Cr (9% Chromium):
Khoom siv:Alloy hlau nrog 9% Chromium thiab 1% Molybdenum.
Lub hom phiaj:Muab kev tiv thaiv corrosion zoo dua li L80-1. Nws yog siv nyob rau hauv qhov dej nrog nruab nrab CO2thiab kub kub uas txheem carbon steel yuav poob.
L80-13Cr (13% Chromium):
Khoom siv:Martensitic Stainless hlau (13% Chromium).
Lub hom phiaj:Qhov "Industry Standard" rauHigh CO2ib puag ncig. Nws muaj kev tiv thaiv zoo heev rau pitting thiab qhov hnyav - poob corrosion hauv cov dej qab zib tab sis kim.
Qhov txawv ntawm K55 thiab L80 yog dab tsi?
Lub ntsiab sib txawv ntawmK55thiabL80yog lub zog, hardness, thiab ib puag ncig lawv tsim rau:
Lub zog:
L80muaj zog ntau, nrog rau qhov tsawg kawg nkaus yield zog ntawm80,000 psi.
K55yog ib qho qis dua - cov khoom qib nrog qhov tsawg kawg nkaus yield zog ntawm55,000 psi.
Kev pab cuam (H2S Resistance):
L80yog qib "tswj hardness" tshwj xeeb tsim rauSour Service (H2S ib puag ncig).
K55yog rau "Sweet Service" nkaus xwb thiab yuav ua tsis tiav (kawg) sai yog tias raug H2S.
Hardness Control:
L80muaj qhov nruj tshaj plaws hardness txwv ntawm23 HRCtiv thaiv brittle cracking.
K55tsis muaj qhov yuav tsum tau API hardness txwv.
Kev kho cua sov:
L80yuav tsum yogQuenched thiab Tempered (Q & T)kom ua tiav nws cov khoom.
K55tuaj yeem xa "raws li{0}}rolled" lossis normalized, yuav tsum tau ua tsawg dua.
Cim npe nrov: api 5ct l80-13cr casing yeeb nkab, Tuam Tshoj api 5ct l80-13cr casing yeeb nkab manufacturers, lwm tus neeg, Hoobkas
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