1. Cov khoom lag luam
API N80 yog qhov siab - lub zog cas ua yeeb nkab hauv qabAPI spec 5ct, Dav siv nyob rau hauv cov roj thiab roj drilling. Cov qauv tseem ceeb muaj:
| Chaw ua uas tsis tau haus | Tus nqi / lus piav qhia |
|---|---|
| Khoom Siv Khoom | N80 (cov pa roj carbon nrog vanadium alloying) |
| Paib lub zog | Ntau dua los yog sib npaug rau 552 mpa (80 ksi) |
| Lub zog tensile | Ntau dua los yog sib npaug rau 689 MPa (100 ksi) |
| Tshuaj Muaj Tshuaj | C 0.34-0.38%, MN 1.45-1.70%, v 0.11-0.16% |
| Txheej hauv lub taub | 114.3-508 hli (4.5-20 nti) |
| Phab Ntsa Thickness | 6.35-25.4 hli (0.25-1 nti) |
| Qho ntev | R-1 (4.88–7.62 m), R-2 (7.62–10.36 m), R-3 (>10.36 m) |
| Xov Hom | BTC (Luv Luv Xov), LTC (xov ntev) |
| Tus qauv | API spec 5ct, SY / T6194-96 (Suav teb) |
2. Cov ntawv thov
Roj & Roj Zoo: Siv nyob rau hauvnruab nrab rau cov qhov dej tob(1,500-4,500 m) rau kev txhawb nqa zoo.
Geothermal wells: Tsim nyog rau high - qhov chaw ib puag ncig.
Dej Wells: Tiv thaiv kev vau rau hauv hydrogeological kev tshawb nrhiav.
3. Qhov Zoo
Siab Zog: Superor Tensile lub zog (ntau dua lossis sib npaug zos rau 689 MPa) piv rau J55 / K55.
Txhim Kho Cov Tougning: Vanadium tso ua ke txhim kho kev cuam tshuam tsis kam.
Nqi -}}}}: Cov nyiaj seem ua tau thiab raug nqi rau kev sib sib zog nqus - cov ntawv thov kom tau zoo.
Qauv: Ua raws li API 5ct, ua kom muaj kev ua kom thoob ntiaj teb.
4. Kev sib piv nrog lwm qib
| Teem nqi | Paib muaj zog (ksi) | Raug siv cov ntaub ntawv |
|---|---|---|
| J55 | 55 | Cov dej ntiav |
| N80 | 80 | Nruab nrab - av zoo |
| P110 | 110 | Ultra -} Cov Dej Duaj |
Rau cov ncauj lus kom ntxaws kev kuaj (piv txwv li, flattening, hydrostatic siab), xa mus rauAPI spec 5ct.
