API 5CT L80 EU Tubing
API 5CT L80 EU Tubingyog ib qho tseem ceeb tubular khoom siv nyob rau hauv cov roj thiab roj kev loj hlob mus thauj cov roj crude los yog natural gas los ntawm subsurface tsim rau saum npoo. Nws ntogPab pawg 2Cov qib steel hauv API Spec 5CT tus qauv thiab tshwj xeeb yog tsim los rau "Sour Service" (acidic ib puag ncig). Nws tus yam ntxwv txhais yog nws lub zog tswj thiab hardness, uas ua rau nws muaj peev xwm tiv thaiv kev ntxhov siab tawg vim yog hydrogen sulfide (H2S).
EUE (Tshooj Sab Nraud Upset End)hais txog hom kev sib txuas uas muaj qhov "sab nraud thickened joint." Ua ntej threading, cov yeeb nkab xaus rau kev ntxhov siab, ua rau lub phab ntsa tuab ntawm qhov kawg uas ntau dua li ntawm cov yeeb nkab lub cev. Yog li ntawd, txawm tias tom qab cov xov raug txiav, lub zog ntawm qhov sib koom ua ke tseem zoo tshaj plaws ntawm cov yeeb nkab lub cev, yog li ua kom muaj kev ntseeg siab ntawm kev sib txuas.
Pib koj qhov L80 EUE Tubing Project nrog ib tus neeg muab kev ntseeg siab
API 5CT L80 EU Tubing Specification
| Yam khoom | Kev xav tau |
|---|---|
| Qib | L80 (L80-1, L80-9Cr, L80-13Cr) |
| Kev sib txuas | EUE (Tshooj Sab Nraud Upset End) |
| Txheej txheem | Seamless |
| Kev kho cua sov | Puv -Lub cev Quenched & Tempered |
| Xov | Raws li API Spec 5B |
| Xim Band | Ib Band |
Chemical Composition (Qhov hnyav, %)
| Element | L80-1 | L80-9Cr | L80-13Cr |
|---|---|---|---|
| C (Carbon) | 0.20–0.30 | 0.18–0.30 | 0.12–0.30 |
| Si (Silicon) | Tsawg dua los yog sib npaug li 1.00 | Tsawg dua los yog sib npaug li 1.00 | Tsawg dua los yog sib npaug li 1.00 |
| Manganese (Mn) | 0.25–1.00 | 0.25–1.00 | 0.25–1.00 |
| P (phosphorus) | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 |
| S (Sulfur) | Tsawg dua lossis sib npaug li 0.010 | Tsawg dua lossis sib npaug li 0.010 | Tsawg dua lossis sib npaug li 0.010 |
| Cr (Chromium) | - | 8.0–10.0 | 12.0–14.0 |
| Molybdenum (zeeg) | - | - | - |
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog | 552-621 MPa(tsawg kawg 552 MPa) |
| Tensile zog | Ntau dua lossis sib npaug li 655 MPa |
| Elongation | Txiav txim siab raws li cov kab uas hla thiab phab ntsa tuab, feem ntau Ntau dua lossis sib npaug li 18% |
| Hardness | Tsawg dua lossis sib npaug li 241 HB(Brinell Hardness) |
| Microstructure | Tempered sorbite, nplua thiab zoo li grain qauv |
Dimensions and Weight Chart - EUE Tubing
| Nominal OD | Qhov hnyav (lb / ft) | Phab ntsa Thickness (mm) | Sab hauv Dia (mm) | Txoj kab uas hla (mm) | Coupling OD (hli) |
|---|---|---|---|---|---|
| 2-3/8" | 4.70 | 4.83 | 50.67 | 48.29 | 77.80 |
| 2-7/8" | 6.50 | 5.51 | 62.00 | 59.61 | 93.17 |
| 3-1/2" | 9.30 | 6.45 | 76.00 | 72.82 | 114.30 |
| 4-1/2" | 12.75 | 6.88 | 101.60 | 98.42 | 141.30 |
Kev kho saum npoo
Txheej: Tag nrho cov tubing lub cev yog coated nrogkua roj vanishlos yog xim dub los tiv thaiv atmospheric corrosion thaum thauj thiab khaws cia.
Xov Tooj: API txujxov compound(cov roj nplaum sealing) yog siv rau hauv cov chaw xov xov kom tiv thaiv lub plab thaum lub sijhawm ua- thiab tiv thaiv xeb.
Xov Protectors: Yas lossis steel -plastic compositexov protectorstau nruab rau ntawm ob qhov kawg los tiv thaiv xov puas thaum tuav.
Sab hauv txheej (yeem): Rau ib puag ncig corrosive hnyav, sab hauv phab ntsa tuaj yeem kho nrogepoxylos yog ceramic txheej rau txhim kho corrosion kuj.
Kev tshuaj xyuas rau L80 EUE Tubing
Txhawm rau kom muaj kev nyab xeeb hauv H₂S ib puag ncig, kev tshuaj xyuas yuav tsum nruj dua li cov qauv tubing:
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT):
EMI (Electromagnetic Inspection): Tag nrho - kuaj xyuas lub cev tsis xws luag.
UT (Ultrasonic Testing): Kev txheeb xyuas ntawm sab hauv thiab sab nraud longitudinal, transverse flaws, thiab phab ntsa thickness ntsuas.
MPI (Magnetic Particle Inspection): Tshwj xeeb yog siv los txheeb xyuas qhov chaw micro- tawg ntawm cov yeeb nkab kawg thiab kev sib txuas.
Hydrostatic Test: Txhua lub raj yuav tsum dhau lub siab- tuav qhov ntsuas, nrog ntsuas ntsuas ntsuas raws li API cov lus qhia, thiab tuav rauyam tsawg kawg yog 5 vib nas this.
Hardness Test: Kev tshuaj xyuas tseem ceeb rau L80 tubing; cov qauv raug sim rau tag nrho - phab ntsa hardness faib, kom ntseeg tau tias qhov tseem ceeb tsis tshaj23 HRC.
Drift Test: Tus qauv drift gauge tau dhau los ntawm tag nrho cov raj kom tsis muaj kev txwv sab hauv lossis txoj kab uas hla.
Kev tshuaj xyuas xov: Xov gauges yog siv los xyuas cov suab, taper, xov qhov siab, thiabkaw qhov ntev.
Dimensional soj ntsuam: suav nrog kev txheeb xyuas qhov ntev, sab nraud txoj kab uas hla kam rau ua, phab ntsa thickness uniformity, thiab ncaj.
GNEEAPI 5CT L80 EU Tubing txheej txheem kab
GNEEAPI 5CT L80 EU Tubing Hoobkas khoom siv
GNEEAPI 5CT L80 EU Tubing test equipments
GNEEAPI 5CT L80 EU Tubing daim ntawv pov thawj
FAQ
Daim ntawv tag nrho ntawm EUE tubing yog dab tsi?
EUE stands rau "Sab nraud Upset End."
Nws yog ib qho kev sib txuas qauv siv rau tubing; nws txhim khu kev sib txuas lub zog thiab sealing kev ua tau zoo los ntawm thickening kawg ntawm lub cev yeeb nkab. Nws yog feem ntau siv rau kev sib txuas cov hlua hlua hauv siab - siab thiab siab - kev ntxhov siab ib puag ncig nyob rau hauv cov roj thiab cov nkev zoo.
Dab tsi yog cov qib sib txawv ntawm tubing?
Cov qib hlau feem ntau rau cov roj av tubing feem ntau suav nrog J55, K55, L80, thiab P110. Cov qib no tau txhais los ntawm American Petroleum Institute (API) nyob rau hauv API 5CT tus qauv thiab ua haujlwm kom paub qhov txawv ntawm cov tubing raws li qib sib txawv ntawm lub zog thiab tsim nyog rau qhov chaw ua haujlwm tshwj xeeb.
J55: Ua kom muaj qhov muaj zog tsawg kawg nkaus ntawm 55,000 psi thiab tsim nyog rau cov qhov dej ntiav ntiav lossis tsawg - ib puag ncig kev ntxhov siab.
K55: Ib qho kev hloov kho tshiab ntawm J55, tus cwj pwm los ntawm kev tswj hwm nruj dua ntawm cov tshuaj muaj pes tsawg leeg thiab muab kev ua haujlwm ruaj khov dua.
L80: Features lub zog tsawg kawg nkaus ntawm 80,000 psi thiab muab faib ua L80-1, L80-9Cr, thiab L80-13Cr; ob lub tom kawg muaj chromium, muab kev tiv thaiv rau H₂S corrosion thiab ua rau lawv haum rau acidic ib puag ncig.
P110: Features lub zog tsawg kawg nkaus ntawm 110,000 psi; nws yog qib siab -lub zog siv hauv qhov dej tob lossis siab - qhov dej siab.
Kev xaiv ntawm cov qib steel no yog txiav txim siab los ntawm kev ua haujlwm tshwj xeeb, xws li qhov tob tob, siab, thiab corrosivity ntawm cov kua dej.
Dab tsi yog qhov sib txawv ntawm API tubing threads?
API tubing threads feem ntau muab faib ua ob pawg: round threads thiab buttress threads. Ob leeg yog tsim raws li API Spec 5B tus qauv.
Round Threads: Characterized by a 60℃thread profile angle and a taper of 1:16, these are subdivided into Non-Upset (TBG / NUE) and External Upset (UP TBG / EUE) hom. Lawv cia siab rau cov xov flanks rau kev sib khi thiab haum rau nruab nrab - mus rau - qhov dej siab.
Buttress Threads: Muab cov qauv zoo tshaj plaws thiab kev sib khi ruaj khov, cov no muaj cov khoom siv siab tshaj -cov kabmob muaj peev xwm thiab tsim nyog rau kev xav tau kev ua haujlwm, xws li qhov dej tob thiab siab - qhov chaw siab.
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