Hauv kev lag luam roj thiab roj, ob qho tib siP110thiabQ125yog siab - lub zog casing thiab tubing qib tswj los ntawm covAPI 5 CTspecification.
Thawj qhov txawv yog qhov ntawdP110 yog tus qauv "workhorse" rau qhov tob, siab - qhov dej siab, thaumQ125 yog ib qho ultra-siab- lub zog, nruj tswj qibtsim los rau qhov chaw muaj kev ntxhov siab tshaj plaws, feem ntau yuav tsum tau kuaj tshwj xeeb.
Xav tau lub zog loj?Tau txais cov lus sib tw rau P110 thiab Q125 casing rau koj qhov tob -cov haujlwm zoo hnub no.
API 5CT Q125 casing thiab tubingyog ib qho ntawm cov qib siab tshaj -cov qib steel siv hauv kev lag luam roj thiab roj. Nws raug cais raws liPab pawg 5ntawm API 5CT specification thiab yog tshwj xeeb engineered rau ultra- qhov tob tob, ultra- siab- kev tsim siab, thiab huab cua load ib puag ncig.
Core Positioning: Q125 yog ib qho ultra- siab- lub zog steel nrog qhov tsawg kawg nkaus lub zog ntawm 125,000 psi. Nws yog dav suav hais tias yog qib "sab saum toj-tier kev ua tau zoo" hauv API tus qauv.
Kev tsim khoom nruj heev: Kev tswj kom zoo rau Q125 yog qhov nruj tshaj plaws ntawm txhua qib API. API tswj hwm qhov ntawdtxhua qhov ntev ntawm cov kav dejyuav tsum tau mus kuaj hardness thiab kev ntsuam xyuas, es tsis yog cov batch sampling tso cai rau cov qib qis.
Kev kho cua sov: Nws yuav tsum tau ua tiav los ntawm -ntevQuenching thiab Tempering (Q & T)los xyuas kom meej tias cov hlau tuav lub siab toughness thiab niaj hnub microstructure txawm tias nws muaj zog heev.
Kev Pabcuam Ib puag ncig: Feem ntau siv hauvtsis yog -corrosive (qab zib)ultra- tob thiab siab - qhov dej siab. Thaum nws cov hardness tswj tau, nws lub zog loj ua rau nws muaj kev cuam tshuam rau hydrogen embrittlement; Yog li ntawd, nws feem ntau tsis pom zoo rau kev pabcuam qaub (H2S ).
Daim ntawv thov Scenario: Feem ntau yog siv los ua ntau lawm lossis nruab nrab casing nyob rau hauv ultra- qhov tob qhov qhov siab tshaj plaws tiv thaiv kom tawg thiab tawg siab yuav tsum tau.
Technical Parameter Tables rau API 5CT Q125
Mechanical Properties Table
Q125 nta tshwj xeeb tshaj tawm los thiab lub zog tensile, nrog lub hau nruj ntawm qhov tawv (tsis zoo li P110).
| Parameter | Imperial units (psi) | Metric units (MPa) |
| Yield Strength - Yam tsawg kawg nkaus | 125,000 psi | 862 MPa |
| Yield Strength - Ntau tshaj | 150,000 psi | 1,034 MPa rau |
| Tensile Strength - Yam tsawg kawg nkaus | 135,000 psi | 931mpa ua |
| Hardness - Ntau tshaj | Tsawg dua lossis sib npaug rau 28.0 - 30.0 HRC(Pib spec) | -- |
| Impact Toughness (CVN) | Yuav tsum xeem rau txhua lub yeeb nkab | Raws li phab ntsa thickness |
Chemical Composition Table (% Max)
Txhawm rau ua tiav 125 ksi lub zog thaum tuav lub zog, Q125 muaj cov ntsiab lus tseem ceeb xws li Chromium (Cr) thiab Molybdenum (Mo).
| Element | API 5CT Limits (%) |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.35 |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.35 |
| Phosphorus (P) | Tsawg dua lossis sib npaug rau 0.020 (Kev tswj hwm nruj) |
| Sulfur (S) | Tsawg dua los yog sib npaug rau 0.010 (Txwv tsis pub tshaj) |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45 |
| Chromium (Cr) | Feem ntau> 1.0% |
| Molybdenum (hli) | Feem ntau> 0.5% |
Core Inspection & Identification
| Yam khoom | Kev piav qhia |
| Kev xeem zaus | Yuav tsum tau NDT, hardness, thiab kev ntsuam xyuas ntawm txhua lub yeeb nkab. |
| Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT) | Yuav tsum muaj tag nrho -ntev Ultrasonic (UT) + Sib Nqus Particle lossis EMI. |
| API Xim Code | Ib Txiv Kab ntxwv Band |
| Stenciling | API 5CT, Q125, qhov loj me, qhov hnyav, cov chaw tsim khoom, thiab cov lej xeem. |
API 5CT P110 casing thiab tubingyog ib qho ntawm feem ntau sivsiab -lub zogsteel qib hauv kev lag luam roj thiab roj. Classified liPab pawg 4raws li API 5CT specification, nws ua haujlwm tseem ceeb rau kev sib sib zog nqus, ultra- sib sib zog nqus, thiab siab - kev loj hlob zoo.
Core Positioning: P110 yog ib qho dav dav - lub hom phiaj siab - lub zog steel. Nrog rau qhov tsawg kawg nkaus tawm lub zog ntawm 110,000 psi (110 ksi), nws yog tsim los tiv taus huab cua loads thiab siab tsim siab.
Kev Pabcuam Ib puag ncig: Nws yog feem ntau siv hauvtsis yog -ib puag ncig corrosive (Sweet Service). Txawm hais tias nws lub zog siab, nws tsis tiv taus Hydrogen Sulfide (H2S) corrosion kuj. Nyob rau hauv ib puag ncig qaub, P110 yog qhov muaj feem cuam tshuam rau Sulfide Stress Cracking (SSC).
Kev kho cua sov: Nws yuav tsum tau puv -ntevQuenching thiab Tempering (Q & T)los xyuas kom meej tias cov khoom tuav zoo heev cuam tshuam toughness thaum ua tau zoo zog.
Daim ntawv thov: Feem ntau yog siv los ua cov casing los yog nruab nrab casing nyob rau hauv qhov tob tob (dhau 4,000 meters) thiab siab -cov roj qhov dej uas siab tensile lub zog yuav tsum tau dai cov hlua hnyav.
P110 Technical Parameter Tables
Mechanical Properties
| Parameter | Imperial units (psi) | Metric units (MPa) |
| Yield Strength - Yam tsawg kawg nkaus | 110,000 psi | 758mpa ua |
| Yield Strength - Ntau tshaj | 140,000 psi | 965mpa ua |
| Tensile Strength - Yam tsawg kawg nkaus | 125,000 psi | 862 MPa |
| Hardness | Tsis muaj API yuav tsum tau txwv | -- |
| Elongation | Raws li API 5CT formula | -- |
Tshuaj muaj pes tsawg leeg (% Max)
P110 feem ntau suav nrog cov ntsiab lus alloying xws li Chromium (Cr) thiab Molybdenum (Mo) kom ntseeg tau tias muaj zog hardenability thaum lub sij hawm Q&T txheej txheem.
| Element | API 5CT Limits (%) |
| Cov pa roj carbon (C) | Tsis tau teev tseg (feem ntau 0.25% -0.35%) |
| Manganese (Mn) | Tsis tau teev tseg (feem ntau 1.00% -1.60%) |
| 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 |
Manufacturing thiab Identification
| Yam khoom | Kev piav qhia |
| Kev kho cua sov | Puv -ntev quenched & Tempered (Q&T) |
| API Xim Code | Ib Band Dawb |
| Kev xeem yuav tsum tau | Yuav tsum tau kuaj hydrostatic thiab puv -ntev NDT (Ultrasonic/EMI) |
| Kev sib txuas | BTC (Buttress Thread) los yog Premium Connections (gas{0}}tight) |
Lub rooj sib piv
| Feature | P110 Casing | Q125 Cas |
| API Group | Pawg 4 (High Strength) | Pawg 5 (Txoj Cai / Lub Zog Siab) |
| Yield zog (Min) | 110,000 psi | 125,000 psi |
| Yield zog (Max) | 140,000 psi | 150,000 psi |
| Tensile zog (Min) | 125,000 psi | 135,000 psi |
| Hardness Tswj | Tsis muaj API txwv | nruj nruj(Max ~ 28–30 HRC) |
| Kev Xeem Rigor | Standard NDT | Siab tshaj(Impact & Hardness ntawm txhua lub yeeb nkab) |
| Ib puag ncig | Sweet Service (Tsis muaj H2S ) | Sib sib zog nqus / siab -Kev ntxhov siab (Puas yog qab zib) |
| API Xim Code | Ib Band Dawb | Ib Txiv Kab ntxwv Band |
API 5CT Roj yeeb nkab Hoobkas
API 5CT Oilfield Casing Pipes Test equipments
FAQ
Q125 yog dab tsi?
Q125yog qhov siab tshaj - qib steel rau casing standardized los ntawmAPI 5 CT.
Lub zog:Nws muaj qhov tsawg kawg nkaus yield zog ntawm125,000 psi(862 MPa).
Daim ntawv thov:Tshwj xeeb tsim rauultra- qhov dej tobthiabsiab heev -siabib puag ncig.
Yuav tsum muaj:Nws tau dhau los ua nruj me ntsis quenching thiab tempering kev kho cua sov kom ntseeg tau siab toughness thiab kev ua tau zoo nyob rau hauv kev ntxhov siab heev.
Kev pabcuam:Nws yog feem ntau siv nyob rau hauv tsis yog - ib puag ncig qaub (tshwj tsis yog hais tias lwm yam) vim nws hardness siab.
P110 casing yog dab tsi?
P110 casyog lub siab -lub zog, API 5CT qib steel yeeb nkab siv hauv cov roj sib sib zog nqus thiab cov qhov dej.
Yield zog:Yam tsawg kawg nkaus110,000 psi(li no lub npe "110").
Daim ntawv thov:Tsim los rautob, siab - qhov dej siabuas yuav tsum tau muaj kev ntseeg siab tshaj plaws.
Hom:Nws yog ibkev pabcuam txheemqib, lub ntsiab lus nws yog siv qhov twg hydrogen sulfide (H2S) tsis muaj (tsis haum rau kev pabcuam qaub).
Qhov tsos:Feem ntau txheeb xyuas los ntawm adawb band(xim code).
