API 5CT L80 Steel Casing thiab Tubing yog dab tsi?
API 5CT L80 roj zoo casing thiab tubing steel kavsuav nrog qib L80-1, L80 9Cr (Cr 8%-10%), L80 13Cr (Cr 12%-14%), L80, lub zog tensile yam tsawg kawg nkaus 655 Mpa, yield zog 552 Mpa txog 655 Mpa, nws yog qib nruab nrab lub zog siab dua J55 / K55 cov kav dej thiab cov roj drilling, L thiab gas kev lag luam.Thov kev daws teeb meem rau API 5CT L80 Casing Hnub no.
API 5CT L80 OCTG Casing tube Specification
Txuj: API 5CT
Qib: L80
Hom: L80-1, L80 9Cr, L80 13Cr
Qib Specification: PSL 1, PSL 2, PSL 3
Sab nraud txoj kab uas hla: 114mm-508mm
Ntev: R1, R2, R3
API 5CT L80casing kav thiab raj Metallurgical Classification
L80 tau muab faib ua peb pawg raws li muaj pes tsawg leeg thiab kev tiv thaiv corrosion. Thawj qhov sib txawv yog nyob hauvChromium cov ntsiab lusthiab tiv tausCarbon Dioxide thiab Hydrogen Sulfide.
| Hom | Kev sib xyaw | Cov yam ntxwv tseem ceeb | Hom kev ua haujlwm |
| L80-1 | Carbon Steel-Manganese Steel, Cr ≈ 0 | Resistant rau me ntsis H₂S (NACE); tsis muaj zog tiv thaiv CO₂. | Cov dej tsis muaj zog acidic, H₂S-cov kabmob tsim |
| L80 9Cr | 8-10% Cr | Zoo CO₂ tsis kam; nruab nrab H₂S kuj. | Nruab nrab-CO₂ Ib puag ncig, Chav Huff-thiab-Puff Well |
| L80 13Cr | 12-14% Cr | Zoo heev CO₂ kuj; txwv tsis pub dhau H₂S. | High-CO₂/Low-H₂S Wells, Condensate Gas Wells |
API 5CT L80steel casing thiab tubing tshuaj muaj pes tsawg leeg
| Element | L80‑1 | L80 9Cr | L80 13Cr |
| C | Tsawg dua lossis sib npaug li 0.43 | Tsawg dua los yog sib npaug li 0.15 | Tsawg dua lossis sib npaug li 0.08 |
| Si | Tsawg dua lossis sib npaug li 0.45 | Tsawg dua los yog sib npaug li 1.00 | Tsawg dua los yog sib npaug li 1.00 |
| Mn | Tsawg dua lossis sib npaug li 1.90 | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua los yog sib npaug li 0.50 |
| P | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 |
| S | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.010 | Tsawg dua lossis sib npaug li 0.010 |
| Cr | - | 8.0–10.0 | 12.0–14.0 |
| Ni | Tsawg dua lossis sib npaug li 0.25 | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua los yog sib npaug li 1.00 |
| Mo | Tsawg dua los yog sib npaug li 0.35 | 0.8–1.1 | 0.5–1.0 |
API 5CT L80oilfiled casing pipes Mechanical Properties
| Khoom | Cov ntaub ntawv |
| Yield zog | 552-655 MPa |
| Tensile zog | Ntau dua lossis sib npaug li 655 MPa |
| Hardness | Tsawg dua lossis sib npaug rau 23 HRC (Less dua lossis sib npaug rau 255 HBW) |
| Elongation | Ntau dua lossis sib npaug li 18% |
| Impact Toughness | V-notch, Ntau dua lossis sib npaug rau 27 J ntawm 0℃(Transverse) |
API 5CT L80 Roj zoo casing steel yeeb nkab qhia txog xim
| qib steel | Yeeb Nkab Lub Cev Xim Band | Coupling Xim |
| L80-1 | Ib pob liab + Ib lub paj yeeb | Tag Nrho Liab nrog Brown Band |
| L80 9Cr | Ib Liab + Ib Xim av + Ib Daj | Liab coupling nrog Brown & Yellow bands |
| L80 13Cr | Ib Liab + Ib Brown + Ib Xiav | Liab coupling nrog Brown & Blue bands |
API 5CT L80 casing yeeb nkab Ntev ntau yam
Raws li cov ntaub ntawv tshaj tawm tshiab tshaj plaws, qhov ntev ntawm API 5CT Qib L80 roj casing ua raws li cov txheej txheem ntev ntu kev cai rau cov pob qij txha tau teev tseg hauv API Spec 5CT, raws li hauv qab no:
R1: 4.88 rau 7.62 m
R2: 7.62 txog 10.36 m
R3: 10.36 - 14.63 m
GNEE API 5CT L80 Casing thiab tubing Pipe ntawv pov thawj
GNEE API 5CT L80 Oil Well Casing Pipe txheej txheem kab
GNEE yog lub tuam txhab zoo tshaj plaws ntawm API 5CT L80 yeeb nkab, uas tau raug sim los ntawm peb cov kws txawj ua tiav ntawm qhov sib txawv. Koj tuaj yeem yuav cov kav dej zoo API 5CT L80 hauv cov nqi siv tau rau peb.
Yog tias koj xav paub ntau ntxiv txog peb API 5CT L80 casing yeeb nkab, nyem qhov no.
FAQ
1.Puas muaj pes tsawg steel qib nyob rau hauv API 5CT? L80 poob qhov twg?
API 5CT suav nrog4 pawg thiab 19 qib.L80 belongs raupab 2thiab muaj zog nruab nrab. Nws qhov tsawg kawg nkaus yield zog yog552 MPa ua-ua tiav qhov zoo sib npaug ntawm lub zog thiab tus nqi. Nws yog ib qho ntawm cov qib siv dav tshaj plaws hauv kev siv roj av.
2.L80 bushings yuav tsum tau ntim li cas?
Kev ntim khoom rau L80 bushings yog nruj heev. Lub bushings yuav tsum tau bundled nrog steel hlau los yog steel daim kab xev. Cov nplhaib tiv thaiv (xov tiv thaiv) yuav tsum tau muab ntsia hlau rau hauv cov xov xov ntawm txhua lub bushing thiab haum kom tsis txhob muaj xov puas thaum thauj thiab khaws cia.
3.Dab tsi yog qhov txawv ntawm L80 tubing thiab L80 casing?
Casing yog siv rau cementing thiab txhawb nqa lub qhov dej. Nws muaj ntau yam ntawmsab nraud diametersthiab pebntevntawm fittings. Tubing yog siv rau kev tsim roj thiab roj. Nws muaj ibme me sab nraudthiabkawg duabsuav nrog unthickened, thickened los yog ib qho fittings. Nws feem ntau tsis muaj fittings (tsuas yog qee qhov tuab tuab muaj fittings). Qhov ntev yog feem ntau nruab nrab ntawm6.10 meters thiab 9.75 meters.
