Tom ntej: K55 Tubing
Txheem:API 5 CT
Qib: K55
Hom:Seamless Steel Tubing
Kev Siv Tseem Ceeb:Dav dav mus rau nruab nrab- qhov tob, qis- mus rau - qhov dej siab nruab nrab, feem ntau yogcasing. Nws siv raws li tubing yog tsawg thiab tshwj xeeb.
Feature tseem ceeb: A txheem -lub zog, tsis yog- qib kev pabcuam qaubuas yog ntau tshaj licasingtshaj li lub cev.
Kev piav qhia ntxaws
1. "K55" – Qib Qib
"K": Lub hauv paus chiv keeb tsis tau sau tseg tab sis yog ib feem ntawm tsab ntawv keeb kwm - qib series hauv API specifications.
"55": Qhia covyam tsawg kawg nkaus yield zogntawm 55,000 psi (379 MPa). Qhov no yog tib yam khoom tsawg kawg nkaus raws li qib J55.
2. Cov yam ntxwv tseem ceeb & cov cuab yeej
Qib Siab: Tsawg-rau- Nruab nrab.Zoo tib yam tsawg kawg nkaus yield zog (55 ksi) rau J55, muab tso rau hauv qis theem ntawm API qib.
Sour Service Muaj peev xwm: TSIS TAU.Zoo li J55 thiab H40, K55 muajtsis tas yuav tsum hardness lossis tshuaj tswjrau Sulfide Stress Cracking (SSC) kuj. Nws yog nruj me ntsis rau"qab zib" kev pabcuam(ib puag ncig yam tsis muaj H₂S).
Unique Yield Strength Range:Qhov no yog qhovqhov tseemceebntawm K55 thiab J55.
K55 muaj qhov siab tshaj tawm lub zog txwv ntawm 80,000 psi.
J55 muaj qhov siab tshaj tawm lub zog txwv ntawm 95,000 psi.
Qhov no txhais tau tias K55 yog tsim los rau anruj dua, tswj tau ntau dua(55-80 ksi vs. J55's 55-95 ksi).
Kev tsim khoom:Feem ntau seamless, tsim nyob rau hauv lub normalized los yog raws li -rolled mob.
3. Sib piv nrog J55 – Tus txheeb ze ze tshaj plaws
| Khoom | K55 | J55 |
|---|---|---|
| Min Yield zog | 55,000 psi | 55,000 psi |
| Max Yield zog | 80,000 psi | 95,000 psi |
| Yield Range | 25 ksi ntau yam (tighter control) | 40 ksi ntau yam (nrog ntau yam) |
| Hardness Tswj | Tsis muaj | Tsis muaj |
| Sour Service | Tsis muaj | Tsis muaj |
| Kev siv thawj zaug | Ntau tshaj li CASING | Common li casing & tubing |
| Nqi & Muaj | Zoo sib xws, tab sis tsawg dua li tubing | Muaj ntau heev thiab raug nqi -zoo |
Vim li cas Tighter Range Matters:Kev tswj hwm, qis qis tshaj tawm los (xws li K55's 80 ksi max) tuaj yeem ua tau zoo dua rau qee qhov kev ua haujlwm downhole qhov twg ductility thiab sib xws raug nqi ntau dua lub zog siab dua nyob rau qee lub J55 pob qij txha. Nws tiv thaiv cov pob qij txha hnyav heev uas tuaj yeem raug cuam tshuam rau qee yam kev puas tsuaj.
4. Cov ntawv thov ib txwm
Raws li Casing (Feem ntau Lub Luag Haujlwm):
Nto casing, nruab nrab casing, thiab qee zaum tsim cov casing nyob rau hauv ntiav, qab zib qhov dej.
Nws cov cuab yeej tswj tau ua rau nws muaj kev ntseeg siab, xav tau kev xaiv rau cov ntawv thov no.
Raws li Tubing (tsawg dua):
K55 tubing tej zaum yuav raug teev nyob rau hauv cov xwm txheej tshwj xeeb:
Tsawg-Tus Nqi, Cov Kab Ntau Lawm Qab Zib:Rau qhov dej ntiav, qis - qhov dej siab qhov twg H₂S tsis tuaj.
Hloov lossis Workover Tubing:Hauv cov qhov dej qub qub uas twb muaj lawm ua tiav nrog K55 casing, kom sib xws.
Dej lossis Gas Txhaj Qhov Dej:Rau qis - txhaj tshuaj qhov twg corrosion tsawg heev.
Qhov twg muaj qhov sib npaug Ductility qhia:Ib tus kws tshaj lij tuaj yeem xaiv K55 tshaj J55 rau nws cov txiaj ntsig nruj dua, ua kom muaj kev coj tus cwj pwm zoo sib xws thoob plaws txoj hlua.
5. Cov lus qhia txog cov ntsiab lus
| Khoom | Specification rau K55 |
|---|---|
| Txuj | API 5 CT |
| Qib | K55 |
| Hom | Seamless Tubing |
| Yam tsawg kawg nkaus Yield Strength | 55,000 psi (379 MPa) |
| Maximum Yield zog | 80,000 psi (552 MPa)- Cov yam ntxwv txhais. |
| Hardness | Tsis muaj qhov txwv siab tshaj API. Tsis yog rau kev pabcuam qaub. |
| Kev kho cua sov | Feem ntau normalized los yog raws li - dov. |
| Xov | Yog tias siv los ua tubing, API EUE (External Upset End) lossis NUE (Tsis yog -Upset End) threads yog qhov raug. |
| Sour Service | Tsis tsim nyog.Rau kev pabcuam qab zib nkaus xwb. |
Kev txiav txim siab tseem ceeb rau Engineers & Buyers
Tubing vs. Casing Mindset:Thaum koj pom "K55," xavcasing ua ntej. Yog tias xav txog nws rau tubing, muaj qhov laj thawj meej rau kev xaiv nws tshaj qhov yooj yim dua thiab ua haujlwm zoo sib xwsJ55.
Txoj Cai Sour Service:Tsis txhob siv K55 (los yog J55) nyob rau hauv ib puag ncig uas muaj cov H₂S kuaj tau. Qhov kev pheej hmoo ntawm brittle sulfide Stress Cracking yog siab.
Purchase Order Specification:Yog tias xaj raws li tubing, qhia meej:
API 5CT Tubing, Qib K55
Qhia qhov chim siab:EUE(rau kev sib koom ua ke zoo zog) los yogNUE.
Tus me nyuam mob: Feem ntau Normalized.
Txoj Kev Xaiv:Rau feem ntau ntiav, qab zib zoo tubing daim ntaub ntawv,J55 yog lub neej ntawd, muaj dav, thiab kev xaiv nyiaj txiag.K55 tubing yog ib yam khoom tshwj xeeb uas yuav tsum tau muab los tshwj xeeb. Qhov kev xaiv ntawm lawv feem ntau los mus rauzeb muaj thiab cov tuam txhab tsim qauv tsim tshwj xeebuas tej zaum yuav nyiam qhov kev sib tw nruj dua ntawm K55.
Cov ntsiab lus
API 5CT K55 yog 55 ksi yam tsawg kawg nkaus yield zog qib nrog nruj tswj qhov siab tshaj plaws tawm los (80 ksi), ua rau nws cov cuab yeej cuab tam tau kwv yees ntau dua li nws cov kwv tij qib J55. Thaum nws yog tus qauv thiab qib sib piv raucasingcov hlua, nws siv lintau lawm tubing yog niche thiab tsawg zaus.
Nws ua hauj lwm raws li kev ntseeg siab, kev lag luam kev xaiv rau ntiav, qis - rau - siab nruab nrab,tsis yog- qaubzoo siv qhov twg nws cov khoom zoo ib yam muaj nqis. Txawm li cas los xij, rau lub hom phiaj tubing,J55 muaj ntau duavim qhov tsawg kawg nkaus lub zog zoo ib yam thiab muaj dav dua.
Hauv cov ntsiab lus: K55 tubing yog qhov siv tau tab sis tsis tshua muaj kev xaiv rau cov dej zoo, qab zib. Ib tug engineer yuav xaiv nws tshaj J55 nkaus xwb yog hais tias qhov tshwj xeeb nruj yield ntau yam (55-80 ksi) muab ib tug ntaub ntawv tsim los yog ua hauj lwm kom zoo dua rau lawv tej daim ntawv thov.Rau txhua lub hom phiaj dav dav, J55 yog qhov mus - mus rau 55 ksi tubing qib.
