Hauv kev lag luam roj thiab roj,J55thiabK55yog cov feem ntau "mid-rau- qis" qib tubing muaj zog tswj hwm los ntawmAPI 5 CTspecification.
Thawj qhov sib txawv ntawm lawv yog lawvtensile zog: thaum lawv ob leeg pib deform ntawm tib lub siab,K55 yog qhov nyuaj dua rau qhov tseeb snap lossis rub sib nrugyog j55.
Thov kev sib tw nqi rau J55 lossis K55 tubing hnub no -Tau txais cov lus teb hauv 24 teev!
j55 cevyog ib qho ntawm feem ntau siv thiab kev lag luam steel qib hauv kev lag luam roj thiab roj, tswj hwm los ntawm covAPI 5 CTspecification. Nws belongs rauPawg 1thiab feem ntau suav hais tias yog "tus neeg ua haujlwm" ntawm drilling engineering, haum rau ntau yam ntawm cov pa dej zoo.
Core Positioning: J55 yog ib qho dav dav - lub hom phiaj, nruab nrab - mus rau - qib qis zog steel. Vim nws qhov sib npaug ntawm cov khoom muaj zog thiab tus nqi tseem ceeb, nws yog cov khoom siv rau qhov dej ntiav thiab nruab nrab - qhov tob.
Kev Pabcuam Ib puag ncig: Feem ntau siv hauvtsis yog- ib puag ncig corrosive (Sweet Wells). Nws tsis muaj kev tiv thaiv rau Hydrogen Sulfide (H2S) corrosion thiab raug txwv nruj rau kev pabcuam qaub.
Kev kho cua sov: API cov qauv tsis tso cai rau kev kho cua sov tshwj xeeb rau J55; nws yog feem ntau xa hauv ib qhoraws li -rolledlos yogNormalized (N)mob.
Daim ntawv thov: Siv dav hauv qhov dej ntiav thiab cov roj av, cov dej txhaj tshuaj, thiab cov qhov dej sib xyaw ua ke nrog cov kev xav tau qis dua.
Technical Parameter Tables rau J55
Mechanical Properties Table
| Parameter | Imperial units (psi) | Metric units (MPa) |
| Yield Strength - Yam tsawg kawg nkaus | 55,000 psi | 379 MPa ua |
| Yield Strength - Ntau tshaj | 80,000 psi | 552 MPa ua |
| Tensile Strength - Yam tsawg kawg nkaus | 75,000 psi | 517 MPa ua |
| Hardness txwv | Tsis xav tau API | -- |
| Elongation | Raws li API 5CT Formula | -- |
Chemical Composition Table (% Max)
Cov kev cai tshuaj rau J55 yog qhov hloov tau yooj yim, feem ntau tsom rau kev tswj tsis huv.
| Element | API 5CT Limits (%) |
| Cov pa roj carbon (C) | Tsis Qhia (feem ntau 0.25% - 0.35%) |
| Manganese (Mn) | Tsis Qhia (feem ntau 1.00% - 1.30%) |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45 |
Common Dimensions & Weights Chart
J55 tubing npog tag nrho cov qauv API qhov ntau thiab tsawg; Cov nram qab no yog cov specifications feem ntau siv:
| Nominal OD | Nominal Nyhav | Phab ntsa Thickness | Sab hauv Diameter (ID) | Drift Diameter |
| nti (mm) | lb/ft (kg/m) | nti (mm) | nti (mm) | nti (mm) |
| 2-3/8" (60.3) | 4.60 (6.85) | 0.190 (4.83) | 1.995 (50.67) | 1.901 (48.29) |
| 2-7/8" (73.0) | 6.40 (9.52) | 0.217 (5.51) | 2.441 (62.00) | 2.347 (59.61) |
| 3-1/2" (88.9) | 9.20 (13.69) | 0.254 (6.45) | 2.992 (76.00) | 2.867 (72.82) |
| 4-1/2" (114.3) | 12.60 (18.75) | 0.271 (6.88) | 3.958 (100.5) | 3.833 (97.36) |
k55 cevyog ib qho nruab nrab -rau- tsis tshua muaj zog oilfield tubular khoom ua raws li covAPI 5 CTspecification. Nws belongs rauPawg 1ntawm API cov qauv. Thaum nws cov khoom siv kho tshuab zoo ib yam li J55, nws muaj lub zog tensile zog, ua rau nws yog ib qho ntawm feem ntau siv qib hauv roj thiab roj drilling.
Core Positioning: K55 yog ib qho dav dav - lub hom phiaj, tsis yog - qaub kev pabcuam steel qib. Nws qhia tib yam tsawg kawg nkaus tawm lub zog li J55 tab sis nta asiab dua yam tsawg kawg nkaus tensile zog.
Cov yam ntxwv tseem ceeb: Nrog lub zog tensile yam tsawg kawg nkaus ntawm 95,000 psi (20,000 psi siab dua J55), K55 tuaj yeem txhawb nqa txoj hlua hnyav dua. Qhov no ua rau nws tsim nyog ntau dua li J55 rau qhov tob me ntsis ntawm qhov dej los yog daim ntawv thov uas yuav tsum muaj kev nyab xeeb dua tensile.
Kev Pabcuam Ib puag ncig: Tsim los rautsis yog -corrosive (Sweet Well)ib puag ncig. Nws tsis muaj kev tiv thaiv rau Hydrogen Sulfide (H2S ).
Kev kho cua sov: Zoo ib yam li J55, API cov qauv tsis tso cai rau kev kho cua sov tshwj xeeb rau K55; nws yog feem ntau xa hauv ibNormalized (N)los yograws li -rolledmob.
Technical Parameter Tables rau K55
Mechanical Properties Table
| Parameter | Imperial units (psi) | Metric units (MPa) |
| Yield Strength - Yam tsawg kawg nkaus | 55,000 psi | 379 MPa ua |
| Yield Strength - Ntau tshaj | 80,000 psi | 552 MPa ua |
| Tensile Strength - Yam tsawg kawg nkaus | 95,000 psi | 655 MPa ua |
| Hardness txwv | Tsis xav tau API | -- |
| Elongation | Raws li API 5CT Formula | -- |
Chemical Composition Table (% Max)
Cov tshuaj pleev ib ce ntawm K55 feem ntau tsom rau kev tswj cov impurities xws li Phosphorus thiab Sulfur los xyuas kom meej cov khoom yooj yim toughness.
| Element | API 5CT Limits (%) |
| Cov pa roj carbon (C) | Tsis Qhia (feem ntau 0.25% - 0.40%) |
| Manganese (Mn) | Tsis Qhia (feem ntau 1.00% - 1.50%) |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45 |
Common Dimensions & Weights Chart
Lub cev qhov ntev rau K55 zoo ib yam rau J55 thiab ua raws li API cov qauv:
| Nominal OD | Nominal Nyhav | Phab ntsa Thickness | Sab hauv Diameter (ID) | Drift Diameter |
| nti (mm) | lb/ft (kg/m) | nti (mm) | nti (mm) | nti (mm) |
| 2-3/8" (60.3) | 4.70 (7.00) | 0.190 (4.83) | 1.995 (50.67) | 1.901 (48.29) |
| 2-7/8" (73.0) | 6.50 (9.67) | 0.217 (5.51) | 2.441 (62.00) | 2.347 (59.61) |
| 3-1/2" (88.9) | 9.30 (13.84) | 0.254 (6.45) | 2.992 (76.00) | 2.867 (72.82) |
| 4-1/2" (114.3) | 12.75 (18.97) | 0.271 (6.88) | 3.958 (100.5) | 3.833 (97.36) |
Lub rooj sib piv
| Feature | j55 cev | k55 cev |
| Yield zog (Min) | 55,000 psi (379 MPa) | 55,000 psi (379 MPa) |
| Yield zog (Max) | 80,000 psi (552 MPa) | 80,000 psi (552 MPa) |
| Tensile zog (Min) | 75,000 psi (517 MPa) | 95,000 psi (655 MPa) |
| Kev kho cua sov | Tsis muaj qhov teev tseg (feem ntau normalized) | Tsis muaj qhov teev tseg (feem ntau normalized) |
| Kev Pabcuam Ib puag ncig | Qhov dej "qab zib" (tsis muaj H2S ) | Qhov dej "qab zib" (tsis muaj H2S ) |
| Tus nqi txheeb ze | Kev lag luam feem ntau | me ntsis siab dua J55 |
| API Xim Code | Ib Leeg Ntsuab Band | Ob Lub Paj Ntsuab Ntsuab |
Phau Ntawv Qhia Xaiv: J55 vs. K55
| Feature | j55 cev | k55 cev | Kev xaiv tswv yim |
| Yield zog | 379 - 552 MPa (55-80 ksi) | 379 - 552 MPa (55-80 ksi) | Sib npaug: Ob leeg muaj tib qho kev tiv thaiv mus tas li deformation. |
| Tensile zog | Ntau dua lossis sib npaug rau 517 MPa (75 ksi) | Ntau dua lossis sib npaug rau 655 MPa (95 ksi) | K55 yog siab dua: K55 tuaj yeem tiv taus qhov hnyav dua / tensile loads. |
| Xim Code | Ib Green Band | Ob lub Green Bands | Siv rau kev qhia ceev ceev ntawm qhov chaw. |
| Kev kho cua sov | Normalized los yog Raws li -rolled | Normalized los yog Raws li -rolled | Cov txheej txheem tsim khoom zoo ib yam. |
| Daim ntawv thov zoo tshaj plaws | Cov qhov dej ntiav, dej / qhov dej txhaj tshuaj | Qhov tob tob los yog cov khoom siv ntau dua | Xaiv K55 yog tias txoj hlua hnyav siab. |
| Nqi Factor | qis tshaj | me ntsis siab dua J55 | J55 yog qib "nkag mus- qib" uas pheej yig tshaj plaws. |
API 5CT OCTG Hoobkas
API 5CT Oil Well casing yeeb nkab test equipments
FAQ
Lub zog tensile ntawm J55 yog dab tsi?
Covyam tsawg kawg nkaus tensile zogAPI 5 CT UASJ55yog:
75,000 psi(517 MPa)
Cov tshuaj muaj pes tsawg leeg ntawm API 5CT K55 yog dab tsi?
Cov tshuaj muaj pes tsawg leeg ntawmAPI 5CT K55yog qhov hloov tau yooj yim, raws li API tus qauv feem ntau tsom rau nws cov khoom siv kho tshuab. Txawm li cas los xij, qhov yuav tsum tau txwv rau impurities yog:
Phosphorus (P):Tsawg dua lossis sib npaug li 0.030%
Sulfur (S):Tsawg dua lossis sib npaug li 0.030%
Yam khoom tsim ntau yam (tsis yog-yuav tsum tau) suav nrog:
Cov pa roj carbon (C): 0.25% – 0.40%
Manganese (Mn): 1.00% – 1.50%
Silicon (Si):Tsawg dua lossis sib npaug li 0.45%
