API L80 Casing yog dab tsi
API L80 yog qib siab - lub zog casing qib tau teev tseg raws li API SPEC 5CT rau roj thiab roj drilling thiab tsim khoom. L series yog tsim los rau kev pab cuam nyob rau hauv corrosive ib puag ncig, nrog rau cov qhov dej uas muaj carbon dioxide thiab hydrogen sulfide, qhov twg lub zog ib leeg yog tsis txaus thiab tswj hardness thiab toughness yuav tsum tau. L80 casing yog muab los ntawm 1 lossis 1Cr kev xaiv nyob ntawm txoj kev kho cua sov, thiab ob qho tib si muab qhov tsawg kawg nkaus lub zog ntawm 80 ksi nrog kev tswj siab tshaj plaws kom txwv tsis pub muaj kev cuam tshuam rau sulfide kev nyuaj siab tawg.
Ntsiab Technical Parameters
| Parameter | Tus nqi |
|---|---|
| Cov ntaub ntawv qib | L80 (carbon steel nrog chromium alloying) |
| Yield zog | 552 txog 655 MPa (80 ~ 95 ksi) |
| Tensile zog | 655 MPa (95 ksi) |
| Tshuaj muaj pes tsawg leeg | C 0.25-0.30%, Cr 0.90-1.10%, Mn 0.6-0.8 feem pua |
| Sab nraud txoj kab uas hla | 114.3-508mm (4.5-20 nyob rau hauv) |
| Phab ntsa thickness | 6.35-25.4 hli (0.25-1 nyob rau hauv) |
| Ntev ntau yam | R-1: 4.88-7.62 m, R-2: 7.62-10.36 m, R-3: tshaj 10.36 m |
| Xov hom | BTC (short round thread), LTC (ntev round thread) |
| Cov qauv | API SPEC 5CT UAS |
Daim ntawv thov
Roj thiab roj qhov dej:casing nyob rau hauv siab -corrosion ib puag ncig nrog CO2 los yog H2S kom muaj kev ruaj ntseg zoo.Geothermal qhov dej:haum rau siab -kub thiab corrosive tej yam kev mob.Marine engineering:resists seawater corrosion nyob rau hauv offshore platform daim ntaub ntawv.
Qhov zoo
Corrosion kuj:cov ntsiab lus chromium ntawm 0.9 mus rau 1.1 feem pua cov ntaub ntawv tiv thaiv oxide txheej uas txo cov nqi corrosion.Siab zog:tensile lub zog tsawg kawg yog 655 MPa txhawb kev sib sib zog nqus - kev pabcuam zoo.Tus nqi zoo:qis lifecycle tus nqi tshaj stainless hlau lwm txoj hauv kev pabcuam qaub.Standardization:tag nrho ua raws li API 5CT ua kom muaj kev sib raug zoo thoob ntiaj teb ntawm cov xov thiab kev soj ntsuam cov cai.
Qib sib piv
| Qib | Yield zog (ksi) | Qhov tseem ceeb feature |
|---|---|---|
| J55 | 55 | Basic carbon hlau |
| N80 | 80 | Siab zog, tsis muaj corrosion kuj |
| L80 | 80 | Corrosion-resistant, tswj hardness |
Kev kuaj thiab tshuaj xyuas
L80 casing yog tsim thiab sim ib API SPEC 5CT, suav nrog tshuaj ntsuam xyuas, tensile xeem, hardness testing, flattening thiab dabtsi yog khoov qhov twg muaj feem xyuam rau, hydrostatic pressure testing, thiab tsis yog - kev ntsuam xyuas puas. Rau kev pabcuam qaub, cov kev xav tau ntxiv xws li kev txwv hardness thiab sulfide stress cracking test yog siv.
Cov lus nug nquag
Q: L80 txhais li cas hauv API 5CT?
A: L qhia txog kev txwv - qib tawm tswv yim tsim los rau kev pabcuam qaub, thiab 80 hais txog qhov tsawg kawg nkaus yield zog ntawm 80 ksi (552 MPa).
Q: Qhov txawv ntawm L80 thiab N80 casing yog dab tsi?
A: N80 muaj lub zog zoo sib xws tab sis tsis muaj kev tiv thaiv corrosion; L80 tau tswj hardness thiab chromium ntxiv rau kev pabcuam hauv CO2 thiab H2S ib puag ncig.
Q: L80 casing tuaj yeem siv rau hauv qhov dej qaub?
A: Yog. L80 yog tus qauv qaub- qib kev pabcuam, muab cov kev txwv nyuaj thiab kev sim rau API 5CT thiab kev ua haujlwm hauv kev lag luam.
Q: Cov xov twg muaj nyob rau ntawm L80 casing?
A: Luv round thread (BTC) thiab ntev round thread (LTC) muaj ntau, nrog cov kev sib txuas hwm muaj rau cov qhov dej tseem ceeb.
Q: Qhov luaj li cas yog L80 casing muaj nyob rau hauv?
A: Sab nraud diameters feem ntau yog los ntawm 114.3 mus rau 508 hli nrog phab ntsa thicknesses ntawm 6.35 mus rau 25.4 hli, nyob rau hauv R-1, R-2, los yog R-3 ntev ranges.
Q: Qhov siab tshaj plaws hardness ntawm L80 yog dab tsi?
A>Raws li API 5CT, L80 muaj qhov siab tshaj plaws hardness yuav tsum tau ntawm 23 HRC, uas tau txheeb xyuas los ntawm kev ntsuam xyuas hardness ntawm txhua qhov cua sov- kho ntau.
Rau L80 casing quotations nrog loj, xov, thiab kev xeem yuav tsum tau,tiv tauj peb pab neeg muag khoom.
