Hauv kev lag luam roj thiab roj,EUEsawv rauExternal Upset End. Nws hais txog ib hom kev sib txuas ntawm threaded siv feem ntaucev(cov kav dej siv coj cov roj los yog roj tawm ntawm lub qhov dej).
Dab tsi yog "External Upset" txhais li cas?
Nyob rau hauv ib tug qauv yeeb nkab, txiav threads mus rau hauv lub kawg txo cov thickness ntawm cov hlau, ua rau cov sib koom ua ke tsis muaj zog ntawm cov yeeb nkab.
Txhawm rau tiv thaiv qhov no, manufacturers ua ib qho" chim siab"- txheej txheem forging uas ua rau qhov kawg ntawm cov yeeb nkab tuab dua li lub cev loj. IbSab nraud chimtxhais tau hais tias lub thickness yog ntxiv rau lubsab nraumntawm lub cev.
Vim li cas thiaj siv tau?
Lub zog:Vim tias qhov kawg yog thickened ua ntej threads raug txiav, phab ntsa thickness nyob rau hauv threads yog sib npaug zos rau los yog ntau tshaj li tus so ntawm cov yeeb nkab. Qhov no ua kom qhov kev sib txuas muaj zog npaum li cov yeeb nkab lub cev nws tus kheej.
High Pressure/Tension:EUE threads yog tsim los rau siab - ib puag ncig siab thiab tuaj yeem tswj qhov hnyav ntawm qhov ntev "txoj hlua" ntawm tubing dai sib sib zog nqus hauv qhov dej.
Durability:Lawv tau tsim los ua "ua" (screwed ua ke) thiab "tuag tawm" (unscrewed) ntau zaus yam tsis muaj kev puas tsuaj rau lub foob.
Xov xwm yam ntxwv
EUE threads belongs rau covAPI Round Xovtsev neeg.
| Parameter | Specification | Sau ntawv |
| Xov Profile | API Round Xov | Rounded crests thiab keeb kwm |
| Threads per Inch (TPI) | 10 TSI / 8 TPI | 1.050 "-1.900" yog 10rd; 2-3/8 "thiab siab dua yog8rd ib |
| Taper | 1:16 (0.0625 hli / hli) | Sib npaug rau 0.75 nti ib ko taw (3/4 "TPF) |
| Xov Height | 1.810mm (rau 8rd) | Theoretical qhov tob ntawm cov xov |
| Txoj Kev Sealing | Interference Fit + Xov Tooj | Lub foob yog tsim los ntawm flank - mus rau -flnk contact |
EUE Tubing specification
| Nominal OD (hauv) | OD D (mm) | Phab ntsa Thickness t (mm) | ID d (mm) | Qhov hnyav (lb / ft) | Txaus siab OD DeuDuj (mm) |
Coupling OD W (mm) | Coupling Ntev L (mm) |
| 1.900 | 48.26 | 3.68 | 40.89 | 2.75 | 52.39 | 63.50 | 95.25 |
| 2-3/8 | 60.33 | 4.83 | 50.67 | 4.60 | 65.88 | 77.80 | 123.83 |
| 2-7/8 | 73.03 | 5.51 | 62.01 | 6.40 | 78.58 | 93.17 | 133.35 |
| 3-1/2 | 88.90 | 6.45 | 76.00 | 9.20 | 95.25 | 114.30 | 142.88 |
| 4 | 101.60 | 6.65 | 88.30 | 11.00 | 107.95 | 127.00 | 152.40 |
| 4-1/2 | 114.30 | 6.88 | 100.54 | 12.60 | 120.65 | 141.30 | 155.58 |
Common Steel Qib & Mechanical Properties
Cov qib steel raug xaiv raws li qhov tob tob, siab, thiab muaj cov roj corrosive (H2S / CO2).
| Qib | Yield zog (psi) | Xim Coding (Bands) | Kev thov ib puag ncig |
| J55 | 55,000 - 80,000 | Ib tug Bright Green band | Dav dav mus rau nruab nrab qhov tob, qis- qhov dej siab |
| N80-1/Q | 80,000 - 110,000 | Ib pob liab | Cov qhov dej tob dua, qhov xav tau muaj zog dua |
| L80 | 80,000 - 95,000 | Ib Liab + Ib Xim Xim | Sour Service (H2S resistant) |
| P110 | 110,000 - 140,000 | Ib pawg Dawb | Sib sib zog nqus, siab - siab, thiab siab - qhov dej nro |
EU vs NUE
Feem ntau koj yuav pom EUE piv rauNUE (Tsis yog -Upset End):
EUE:Thickened xaus, ntau zog, kev lag luam tus qauv rau feem ntau cov tubing.
NUJ:Qhov kawg yog tib lub thickness raws li cov yeeb nkab lub cev. Cov no yog siv nyob rau hauv qis dua - ib puag ncig kev ntxhov siab uas tus nqi - txuag yog qhov tseem ceeb lossis qhov chaw nruj heev.
GNEE EU Tubing Hoobkas
GNEE EUE Tubing test equipments
GNEE EUE Tubing daim ntawv pov thawj
FAQ
Dab tsi yog qhov txawv ntawm EUE thiab EUT threads?
Qhov txawv yog feem ntau nyob rau hauvcov ntsiab lus, tsis nyob rau hauv lub cev xov tsim. Hauv kev lag luam roj thiab roj, lawv feem ntau siv sib hloov, tab sis muaj qhov sib txawv me ntsis hauv qhov lawv piav qhia:
| Lub sij hawm | Stands Rau | Ua kom pom tseeb |
| EUE | Sab nraud chimXaus | CovXovthiab kev sib txuas style. |
| EUT | Sab nraud chimTubing | CovCov yeeb nkabraws li ib yam khoom. |
Dab tsi yog qhov txawv ntawm cov yeeb nkab threads hu ua?
Cov yeeb nkab xov feem ntau muab faib ua peb pawg tseem ceeb nyob ntawm seb lawv siv (Plumbing vs. Roj & Gas).
| Hom | Lub npe | Zoo tshaj rau |
| EUE | Sab nraud chim | Tubing ntau lawm (Tshwj xeeb tshaj plaws) |
| NUE | Tsis yog- chim siab | Tsawg-siab/Utility Tubing |
| BTC | Npuag | Heavy Casing (High tension) |
| NPT | National Pipe Taper | Standard Tebchaws USA Cov kav dej |
| Hwm | VAM/Tenaris | Huab HPHT / Gas Wells |
Dab tsi yog qhov tshwj xeeb ntawm 2 7 8 EUE tubing?
2-7 / 8 "EUE yog ib qho tuab tuab nrog ib txoj kab uas hla ntawm 73.03mm thiab 8 hniav ib nti.
