Hauv qabAPI 5 CTspecification, L80 tubing tau muab faib ua peb hom tseem ceeb raws li lawv cov tshuaj muaj pes tsawg leeg thiab cov ntsiab lus tshwj xeeb uas lawv tau tsim los tiv thaiv.
Thaum tag nrho peb hom sib koom tib yam khoom siv (80,000 psi yield zog thiab qhov siab tshaj plaws hardness ntawm 23 HRC), lawv txawv li cas lawv ua.Cov pa roj carbon dioxide (CO2 )thiab kub kub.
Tau txais cov lus sib tw rau txhua qhov API 5CT L80 Series Tubing -Thov Nqe Hnub No!
L80 Qauv 1Oilfield Tubing (Standard / Carbon Steel)
Qhov no yog qhov feem ntau thiab "pab" version ntawm L80.
Khoom siv:Tsawg- carbon hlau alloy.
Kev Siv Tseem Ceeb:Txujkev pab cuam (H2S )ib puag ncig.
Corrosion Resistance:Nws tiv thaiv Sulfide Stress Cracking (SSC) tab sis muajtsis kam tiv thaiv CO2corrosion.
Tus nqi:Kev lag luam tshaj plaws ntawm L80 hom.
L80-1 roj lub teb chaws tubular khoom Technical Specification
| Yam khoom | Requirement / Specification |
| Yield zog | 80, 000 - 95,000 psi (552 - 655 MPa) |
| Tensile zog | Ntau dua lossis sib npaug rau 95,000 psi (655 MPa) |
| Rockwell Hardness | Tsawg dua lossis sib npaug li 23 HRC |
| Kev kho cua sov | Quenched & Tempered (Q&T) |
| Main Chemistry | C: Tsawg dua lossis sib npaug rau 0.43%, Mn: Tsawg dua lossis sib npaug li 1.90%, P: Tsawg dua lossis sib npaug rau 0.030%, S: Tsawg dua lossis sib npaug 0.030% |
| Siv tau ib puag ncig | Sour Service ( H2S ib puag ncig) nrog tsawg CO2corrosion. |
| API Xim Code | Ib Band |
L80 9Cr Oil Well Casing Steel Pipe (9% Chromium)
Hom no ntxiv Chromium rau cov tshuaj pleev kom zoo dua tiv thaiv qhov hnyav - poob corrosion.
Khoom siv:Cov hlau alloy muaj 9% Chromium thiab 1% Molybdenum.
Kev Siv Tseem Ceeb:Wells nrogmoderate CO2 qib.
Corrosion Resistance:Zoo tshaj hom 1 rau CO2, tab sis feem ntau xaiv tsuas yog thaum 13Cr suav tias yog "overkill" lossis kim dhau.
xwm txheej:Nws tsis tshua siv niaj hnub no, raws li ntau tus tswv xav dhia ncaj nraim mus rau 13Cr rau kev ua tau zoo dua.
L80 9Cr Casing Tubing Technical Specification
| Yam khoom | Requirement / Specification |
| Yield zog | 80, 000 - 95,000 psi (552 - 655 MPa) |
| Tensile zog | Ntau dua lossis sib npaug rau 95,000 psi (655 MPa) |
| Rockwell Hardness | Tsawg dua lossis sib npaug li 23 HRC |
| Kev kho cua sov | Quenched & Tempered (Q&T) |
| Main Chemistry | Cr: 8.00-10.00%, Mov: 0.90-1.10%, C: Tsawg dua lossis sib npaug li 0.15% |
| Siv tau ib puag ncig | Moderate CO2ib puag ncig nrog qee H2S muaj nyob. |
| API Xim Code | Ib Leeg Liab + Ib Lub Xim Xim Xim |
L80 13Cr Oilfield Casing (13% Chromium)
Qhov no yog martensitic stainless hlau thiab yog nrov heev nyob rau hauv offshore thiab siab - nyiaj txiag kev lag luam.
Khoom siv:Siab - alloy steel muaj 12% mus rau 14% Chromium.
Kev Siv Tseem Ceeb:hnyav ib puag ncig nrogsiab CO2 concentrations thiab kub siab.
Corrosion Resistance:Exceptional resistance rau CO2induced pitting thiab qhov hnyav - poob corrosion. Nws yog tus qauv kev lag luam rau "ntub" CO2gas qhov dej.
Tus nqi:Tus nqi kim dua li Hom 1 vim yog cov ntsiab lus Chromium siab.
L80 13Cr Oilfield Casing Pipes Technical Specification
| Yam khoom | Requirement / Specification |
| Yield zog | 80, 000 - 95,000 psi (552 - 655 MPa) |
| Tensile zog | Ntau dua lossis sib npaug rau 95,000 psi (655 MPa) |
| Rockwell Hardness | Tsawg dua lossis sib npaug li 23 HRC |
| Kev kho cua sov | Quenched & Tempered (Q&T) |
| Main Chemistry | Cr: 12.00-14.00%, C: 0.15-0.22%, Si: Tsawg dua lossis sib npaug 1.00% |
| Siv tau ib puag ncig | Severe CO2corrosion nrog muaj cov dej tsim thiab kub kub. |
| API Xim Code | Ib Leeg Liab + Ib Leeg Ntsuab |
Cov ntsiab lus sib piv
| Hom | Khoom siv | Ntsiab Alloy | Qhov zoo tshaj plaws rau ... |
| L80-1 | Carbon Steel | Manganese / Boron | Standard Sour Service (H2S ) |
| L80-9Cr | Hlau alloy | 9% Chromium | Moderate CO2ib puag ncig |
| L80-13Cr | Stainless hlau | 13% Chromium | Severe CO2& Kub kub |
Cov lus qhia xaiv: L80 Series Tubing
| Txoj Cai Xaiv | L80 Hom 1 (Standard) | L80 9Cr (Moderate) | L80 13Cr (High Performance) |
| Core Positioning | Standard Sour Service |
H2S + Nruab nrabCO2 |
HwmCO2 Kev tiv thaiv |
|
H2SH2S Kev tiv thaiv |
Zoo heev.Ua raws li NACE MR0175. | Zoo heev. | Zoo.Txawm li cas los xij, tej zaum yuav raug txwv hauv qhov siab heev H2S. |
|
CO2 CO2 Kev tiv thaiv |
pluag.Yooj yim rau uniform corrosion thiab pitting. | Nruab nrab.9% Chromium muab cov txheej txheem tiv thaiv. | Zoo heev.Tsim tshwj xeeb los tiv thaiv qhov hnyav - poob corrosion. |
| Qhov kub thiab txias | Tsis muaj kev txwv tshwj xeeb. | Kev ua tau zoo tshaj plaws hauv qab 100℃(212℃F). | Qhov zoo ntawm 60℃- 150 degree(140℃F - 302℃F). |
| Dej ib puag ncig | Cov qhov dej qab zib los yog Sour qhov dej nrog xwb H2S. |
Wells nrog nruab nrab CO2thiab qee qhov kev tsim dej. | Cov dej ntub dej, dej saline, thiab siab CO2 ib nrab siab. |
| Kev Sib Txuas Lus Qhia | API Standard (EUE/NUE) txaus. | Kev sib txuas hwm hwmraug pom zoo. | Kev sib txuas hwm hwm yuav tsum tau ua(kom tiv thaiv galling). |
| Tus nqi txheeb ze | 1.0x (Lub hauv paus) | Kwv yees li.2.5x - 3.5x | Kwv yees li.4.0x - 6.0x |
| Lub neej voj voog nqi | Tus nqi pib qis; high workover zaus hauv CO2. | Nruab nrab. | Tus nqi pib siab; txo qis txij nkawm / ua haujlwm. |
FAQ
L80 Hom 1 khoom yog dab tsi?
L80 Qauv 1yog ib qho txwv - tawm los, qib carbon steel siv rau cov tubing thiab casing hauv cov roj thiab cov qhov dej.
L80 khoom yog dab tsi?
L80yog ib nrab -rau- qib siab zog steel rau tubing thiab casing, tswj los ntawmAPI 5 CTspecification.
