API 5CT Qib N80 Hom Q Casing Steel Pipes

API 5CT Qib N80 Hom Q (N80-Q) Casing yog dab tsi?

Tom ntej: API 5CT N80-Qyog lub siab -lub zog roj casing yeeb nkab uas tau txais kev tshwj xeebQuench thiab Temper (Q&T)Kev kho cua sov. Thaum nws sib koom tib yam yield zog ntau yam liN80-1(80,000 rau 110,000 psi), N80-Q yog cov khoom lag luam zoo tshaj plaws nyob rau hauv cov nqe lus ntawmtoughness thiab structural kev ncaj ncees.

Lub "Q" sawv rauQuenched, txhais tau hais tias cov yeeb nkab yog rhuab thiab tom qab ntawd txias txias hauv cov kua nruab nrab, ua raws li tempering. Qhov no tsim ib qho kev ua kom zootempered martensitemicrostructure. Tsis zoo li N80-1, N80-Qyuav tsum tau yuav tsum tau Charpy V- ntsuas qhov cuam tshuam, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov qhov dej uas siab dua ductility thiab tsis kam rau brittle tsis ua haujlwm.

Nrhiav rau N80-Q tus neeg muag khoom?Tawm koj qhov kev nug thiab tau txais cov lus qhia ntxaws hauv 2 teev.

API 5CT N80-Q Casing Pipe Xim Code

API 5CT siv cov xim xim rau kev pom kev pom:

Casing Pipe Lub cev: Ib Band Liab + Ib Lub Paj Ntsuab Ntsuab.

Coupling:Tag nrho cov coupling yog pleev xim rauLiabnrog aNtsuab Ntsuabkab txaij.

Nco tseg: N80-1 tsuas muaj ib leeg liab xwb.

API 5CT N80-Q roj casing yeeb nkab Tshuaj thiab Mechanical Strength

Chemical Composition (Mass Fraction, %)

API 5CT teeb tsa kev txwv nruj ntawm impurities kom ntseeg tau tias weldability thiab tiv thaiv kev tawg.

Mechanical Properties (Cov ntaub ntawv-Tsav)

API 5CT N80-Q Casing Dimensions thiab Nyhav (xaiv qhov ntau thiab tsawg)

N80-Q feem ntau yog siv rau hauv cov hlua ntau lawm lossis cov hlua nruab nrab.

API 5CT N80-Q steel roj casing yeeb nkab Txuas, Xaus, thiab Couplings

Xaus Finishes:

PE (Plain End):Rau vuam lossis tshwj xeeb machining.

T&C (Tshuaj thiab Coupled):Daim ntawv xa tuaj tshaj plaws.

Standard API Kev Sib Txuas:

STC (Short Round Xov):8 threads ib nti.

LTC (Long Round Xov):8 threads ib nti; muab cov dej xau zoo dua thiab lub zog tensile tshaj STC.

BTC (Tebchaws)Trapezoidal xov; muab lub zog siab tshaj plaws rau cov qhov dej tob.

Couplings:

Yuav tsum tau tsim los ntawm cov khoom siv qib N80-Q.

Yuav tsum tau ua tib yam Quench & Temper cua sov kho raws li cov yeeb nkab lub cev.

Standard couplings yog "Regular," tab sis "Tshwj xeeb Clearance" couplings muaj nyob rau nruj- qhov clearance.

API 5CT N80-Q Casing Pipe Inspection

Vim tias N80-Q siv nyob rau hauv ib puag ncig tseem ceeb, kev tshuaj xyuas yuav tsum nruj dua li J55 / K55:

Kev Ntsuas Hydrostatic:Txhua cov yeeb nkab raug sim rau qhov tshwj xeeb siab (piv txwv li, 3,000 txog 9,000+ psi nyob ntawm qhov loj / qhov hnyav) tsawg kawg 5 vib nas this.

Charpy V-Notch (CVN) Impact Test: Kauj ruam tseem ceeb.Ua nyob rau ntawm 0℃los yog chav tsev kub kom ntseeg tau tias cov khoom tsis ua tsis tau raws li tam sim ntawd cuam tshuam.

Tsis yog -Kev Tshawb Fawb Kev Ua Phem (NDE):

Ultrasonic (UT):Txhawm rau txheeb xyuas cov teeb meem sab hauv thiab txheeb xyuas cov phab ntsa thickness.

Magnetic Particle (MPI):Txhawm rau nrhiav cov kab nrib pleb ntawm cov yeeb nkab lub cev thiab cov xov.

Drift Test:Xyuas kom lub taub sab hauv yog zoo ib yam thiab tso cai rau cov cuab yeej hla dhau.

Kev kuaj Hardness:Txhawm rau txheeb xyuas qhov ua tiav ntawm Quench & Temper txheej txheem thiab xyuas kom tsis muaj "qhov nyuaj" tshwm sim.

Visual Thread Inspection:Tshawb xyuas qhov kev sib tsoo, qhov yuam kev, thiab xov qhov tob.

API 5CT N80-Q oilfield casing yeeb nkab Kev tsim cov txheej txheem

Kev tsim khoom ntawm N80-Q cuam tshuam nrog lub voj voog thermal ntau dua li cov qauv qib:

Hlau Ua:Basic Oxygen Rauv (BOF) lossis Hluav Taws Xob Arc Rauv (EAF) ua raws li Ladle Refining thiab Nqus Degassing.

Yeeb nkab txoj kev:Piercing thiab dov ntawm billets los tsim ib tugSeamless (SML)cev.

Austenitizing:Cua sov cov yeeb nkab saum toj kawg nkaus qhov kub thiab txias (Ac3).

Quenching:Ua kom txias cov yeeb nkab hauv dej lossis roj kom hloov cov qauv rau hauv martensite.

Tempering:Reheating rau qhov kub thiab txias hauv qab qhov tseem ceeb (Ac1) kom rov qab ductility thiab toughness thaum tuav lub zog.

Straightening & Sizing:Kub lossis txias straightening kom tau raws li API 5CT straightness tolerances (0.2% ntawm qhov ntev).

GNEE API 5CT N80Q OCTG Casing Pipe txheej txheem kab

GNEE API 5CT N80Q Seamless Casing Steel Pipe Test Equipments

Txhua N80-Q Joint yog 100% UT Tshuaj Xyuas & Hydro-tested.Nyem rau Kawm Txog Peb Cov Txheej Txheem Tswjhwm Zoo.

GNEE API 5CT N80Q carbon steel seamless tubing Certificate

FAQ

Dab tsi yog qhov txawv ntawm N80-1 thiab N80Q hauv API 5CT casing?

Qhov sib txawv tseem ceeb ntawm N80-1 thiab N80Q nyob hauvKev kho cua sovthiabtawv, txawm tias lawv sib koom tib lub zog (80,000 psi tawm los).

Kev kho cua sov:N80-1 yogLi qubyog N80QQuenched & Tempered (Q&T).

Impact Testing:N80Q yuav tsum tau uaCharpy V-cov kev ntsuas cuam tshuamua pov thawj toughness; N80-1 tsis muaj.

Kev ua tau zoo:N80Q muaj kev ntseeg siab dua thiab tiv taus qhov tsis ua hauj lwm nkig, ua rau nws muaj kev nyab xeeb dua rau qhov nyuaj lossis siab - ib puag ncig kev ntxhov siab.

Xim Code:N80-1 muajib pob liab; N80Q muajib lub paj liab thiab ib lub paj ntsuab.

Qhov txawv ntawm casing thiab tubing yog dab tsi?

Qhov sib txawv tseem ceeb ntawmcasingthiabcevyog lawv txoj haujlwm thiab qhov chaw nyob hauv qhov dej:

Muaj nuj nqi:

Casing:Kab tag nrho lub qhov dej kom tiv thaiv cov phab ntsa los ntawm kev sib tsoo, tiv thaiv cov dej hauv av, thiab cais cov txheej txheem sib txawv. Nws yog tuslub plhaub ruaj khovntawm lub qhov dej.

Tubing:Qhov "txoj hlua ntau lawm" muab tso rausab hauvlub casing. Nws yog cov yeeb nkab uas cov roj los yog roj yeej ntws mus rau saum npoo.

Loj:

Casing:Loj nyob rau hauv txoj kab uas hla (feem ntau 4-1/2 "mus rau 20").

Tubing:Cov kab me me (feem ntau yog 1.050 "rau 4-1 / 2").

Kev teeb tsa:

Casing:Feem ntaucementednyob rau hauv qhov chaw thiab tsis tuaj yeem tshem tau yooj yim.

Tubing:Tsis cemented; nws raug tshem tawm ntawm lub qhov dej thiab tuaj yeem rub tawm rau kev kho lossis hloov pauv.

Dab tsi yog annular ntim ntawm casing thiab tubing siv rau?

Lub ntim ntim (qhov chaw nruab nrab ntawm lub casing thiab tubing) yog siv rau ntau yam tseem ceeb hauv lub qhov dej:
Kev Tiv Thaiv Casing: Los ntawm kev sau qhov chaw no nrog inhibited "packer kua" thiab sealing nws nrog apacker, lub casing yog tiv thaiv los ntawm kev kub siab thiab corrosive kua (xws li CO2 los yog H2S) raug tsim los ntawm cov tubing.
Artificial Lift (Gas Lift): Hauv ntau lub qhov dej, siab - cov pa roj siab tau txhaj rau hauv lub cev. Cov roj no nkag mus rau hauv tubing los ntawm cov khoom siv tshwj xeeb kom ua kom cov roj kem thiab pab nws ntws mus rau saum npoo.
Tshuaj Txhaj Tshuaj: Nws tuaj yeem siv los tso cov tshuaj tiv thaiv corrosion, scale inhibitors, lossis de- cov tshuaj waxing mus rau thaj chaw tsim khoom.
Zoo Kev Saib Xyuas Kev Ncaj Ncees: Cov neeg khiav dej num saib xyuas lub siab nyob rau hauv lub annulus kom pom cov xau. Kev hloov siab tam sim ntawd tuaj yeem qhia tau tias muaj qhov nyob hauv lub raj lossis qhov tsis ua haujlwm hauv lub ntim khoom.
Zoo Tswj: Thaum lub sij hawm txij nkawm (kev ua hauj lwm), lub annulus yog siv los circulate "tua kua" kom stabilize lub zoo siab.

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