API 5CT Q125 yog qhov siab- lub zog qib ntawm casing thiab cov roj siv cov roj av (API) tus qauv 5ct. Nws yog ib feem ntawmPab pawg 3, uas tsim cov qib uas muaj kev sib tsoo siab tiv thaiv.
Q125 yog cov raug xaiv rau cov ntawv thov xav tau xws li:
Sib sib zog nqus thiab ultra - deeps hmoov av:Qhov twg muaj zog tensile lub zog yog qhov yuav tsum tau los txhawb txoj hlua ntev ntev.
Siab - h siab / siab- kub (HPHT) WELLS:Qhov twg siab ncaj ncees yog qhov tseem ceeb.
Cov ntawv thov uas yuav tsum tau vau siab tiv thaiv:Xws li nyob rau hauv cov ntsev tsim los yog tsis khov.
Cov Lus Tseem Ceeb:Q125 yogfeem ntau pom zoo rau cov kev pabcuam sour(ib puag ncig muaj cov sulrodoride, h₂s) tshwj tsis yog tias nws tau paub meej rau cov kev pabcuam los ntawm cov kev ua haujlwm no, feem ntau raws li cov qib ntawm cov tswv yim.
Cov Khoom Tseem Ceeb
Cov kev txhais cov xeeb ceem ntawm Q125 yog nwsYam tsawg kawg nkaus los lub zog ntawm 125,000 psi (862 mpa mpa mpa mpa)Cov. Cov kab ntawv hauv qab no qhia txog cov khoom tseem ceeb thiab tshuaj lom neeg raws li API 5ct.
Rooj 1: Cov khoom siv kho tshuab ntawm API 5CT Q125
| Ntiag tug | Tus nqi | Sau ntawv |
|---|---|---|
| Teem nqi | Q125 | - |
| Teev cov txiaj ntsig tsawg kawg nkaus zog (smys) | 125,000 psi (862 mpa) | Lub hauv paus rau kev tsim kev suav. |
| Yam tsawg kawg tensile lub zog | 135,000 psi (931 MPA) | - |
| Tawm Zog Zog (Hardness tswj) | 125, {{000 - 150, 000 psi ({{}} mpa mpa mpa mpa) | Yuav kom ntseeg tau weldability thiab nruj. |
| MAXUSION HARTONNESS (HRC) | Saib Cov Lus 2 Hauv qab no | Hardness yog thuam. |
| Kev Lag Luam Khoom Tshwj Xeeb | PSL-2 / PSL-3 | PSL-3 muaj kev xav tau ntau dua rau cov chemistry, kev tswj hwm nruj, thiab kev tswj hwm. |
Rooj 2: Qhov ntau tshaj plaws yuav tsum muaj rau Q125 (PSL-2)
Qhov no yog qhov ntsuas tseem ceeb, tshwj xeeb tshaj yog rau weldability thiab kuj mus rau sulfide kev ntxhov siab tawg (SSC).
| Khoom Yam | Lub cev | Coupling |
|---|---|---|
| Casing thiab butpess xov casing | 35.4 hrc | 37.0 HRC |
| Tsis -} chim tubing | 35.4 hrc | - |
| Sab nraud chim tubing | 35.4 hrc | 35.4 hrc |
* Nco tseg: rau PSL-3, qhov siab tshaj plaws hardness rau cov yeeb nkab lub cev thiab cov kev txuas yog feem ntau 35.4 HRC. *
Rooj 3: Cov tshuaj lom neeg raug nplua (PSL-2, LADLE tsom)
API 5CT tso cai rau ntau ntawm cov kws kho mob kom ua tiav cov neeg siv khoom xav tau. Cov hauv qab no yog ib qho piv txwv, tab sis nws tuaj yeem sib txawv los ntawm cov chaw tsim khoom.
| Lub ntsiab | Siab tshaj% (lossis ntau) | Lub ntsiab | Siab tshaj% (lossis ntau) |
|---|---|---|---|
| Carbon (c) | 0.35 - 0.50 % | Npib tsib caug (ni) | 1.00% max |
| Manganese (mn) | 1.00 - 1.80 % | Chromium (cr) | 1.00% max |
| Molybdenum (mo) | 0.25 - 0.85 % | Tooj Liab (Cu) | 0.50% max |
| Silicon (si) | 0.55% max | Boron (b) | 0.005% Max |
| Phosphorus (p) | 0.020% Max | Sulphur (s) | 0.010% max |
NCO TSEG: Cov chemistry no yog tsim rau lub zog siab los ntawm kev txiav txim siab thiab ua rau sov sov. Cov qib sulfur thiab phosphorus qis thiab phosphorus qib txhim kho kev nruj.
Cov ntaub ntawv seem thiab kev ua tau zoo (piv txwv)
Cov lus hauv qab no muab cov piv txwv ntawm kev ntsuas kev ua tau zoo rau Q125 qhov ntau thiab tsawg.Cov kev ntseeg no yog rau kev siv xwb; Qhov tseem ceeb yuav tsum tau lees paub nrog cov chaw tsim khoom cov yeeb nkab yeeb.
Rooj 4: Piv Txwv Ua Piv Txwv Kev Ua Tau Rau Q125 Casing (PSL-2)
| Nominal loj & hnyav (hauv. & Lb / ft) | Teem nqi | Collapse Kuj (PSI) | Sab hauv cov txiaj ntsig siab (PSI) | Yeeb Nkab Lub Cev Tawm Los (Klbf) |
|---|---|---|---|---|
| 9-5 / 8 ", 47.0 lb / ft | Q125 | 12,290 | 12,550 | 1,587 |
| 9-5 / 8 ", 53.5 LB / FT | Q125 | 13,840 | 13,990 | 1,806 |
| 7 ", 35.0 lb / ft | Q125 | 15,010 | 15,570 | 1,110 |
| 7 ", 38.0 lb / ft | Q125 | 16,180 | 16,570 | 1,205 |
Piav cov khoom lag luam ua tau zoo:
Collapse Kuj:Sab nraud siab ntawm cov yeeb nkab yuav vau.
Sab hauv cov txiaj ntsig siab:Lub siab sab hauv uas tsim kev ntxhov siab ntawm qhov tsawg kawg nkaus muaj zog ntawm sab hauv phab ntsa.
Yeeb nkab lub cev tawm los:Lub axial thauj khoom yuav tsum tau ua kom cov yeeb nkab lub cev hauv nro.
Cov Nta Tseem Ceeb Thiab Raug
Txheej txheem tsim khoom:Q125 yog yuav luag tshwj xeeb siv tau siv covSeamless (sms)Txheej txheem los xyuas kom meej homogeneity thiab lub zog ntawm siab pressures.
Kev Kho Cua Sov:Nws undergoes ib tawvQuenching thiab tempering (Q & T)cov txheej txheem kom ua tiav nws lub zog siab thiab cov khoom nruj.
Xov thiab couplings:Q125 tuaj yeem muab nrog ntau cov ntawv API (piv txwv li, BTC, LTC, STC) lossis, ntau zaus, nrogCov Xov Uas Tau Txais Kev Sib TxuasLos ntawm cov tuam ntxhab nyiam Vallourec, Tenaris, lossis TMK. Cov kev sib txuas tau feem ntau pom zoo rau Q125 daim ntaub ntawv kom ntseeg tau roj- nruj kev ntseeg siab nyob rau hauv lub siab tensile thiab compressive thauj khoom.
Lub ntsiab
API 5CT Q125 yog tus hwm, siab-}} Kev Ua Tau Zoo Steel qib tsim rau cov xwm txheej nyuaj tshaj plaws. Nws thawj qhov txiaj ntsig yog nwsTshwj tsis txaus siab tensile lub zog thiab collapse tsis kamCov. Cov kws tsim khoom xaiv Q125 thaum cov qib cov qauv zoo li P110 tsis txaus, tab sis lawv yuav tsum xyuam xim rau nws cov kev txwv txogQaub Kev PabThiab xyuas kom zoo thiab kev sib txuas tau xaiv rau leverage nws lub peev xwm puv.
