Kev siv roj casing:

Siv rau cov roj zoo drilling yog tsuas yog siv nyob rau hauv cov txheej txheem drilling thiab tom qab ua tiav cov kev pab cuam ntawm phab ntsa zoo, thiaj li yuav xyuas kom meej cov txheej txheem drilling thiab kev ua haujlwm zoo ntawm tag nrho qhov dej tom qab ua tiav.Vim qhov sib txawv geological tej yam kev mob, underground. Kev nyuaj siab lub xeev yog complex, thiab cov kev txiav txim ntawm tensile, compressive, dabtsi yog khoov thiab torsional stresses ntawm cov yeeb nkab lub cev tso rau pem hauv ntej ntau dua yuav tsum tau rau qhov zoo ntawm lub casing nws tus kheej.Thaum lub casing nws tus kheej yog puas vim qee qhov laj thawj, nws tuaj yeem ua rau txo qis ntawm tag nrho lub qhov dej, lossis txawm tias seem.

Hom roj casing:

Raws li SY/T6194-96 "petroleum casing", nws tuaj yeem muab faib ua ob hom: luv threaded casing thiab nws dab tshos thiab ntev threaded casing thiab nws dab tshos.

Roj casing standard thiab ntim:

Raws li SY/T6194-96, cov casing hauv tsev yuav tsum tau khi nrog steel hlau lossis steel siv.

Lub casing yuav tsum tau muab cov xov thiab dab tshos raws li API SPEC 5CT1988 thawj tsab los yog nyob rau hauv ib qho ntawm cov nram qab no cov yeeb nkab kawg cov ntaub ntawv: ca kawg, round xov tsis muaj dab tshos los yog dab tshos, offset trapezoidal xov nrog los yog tsis muaj dab tshos, ncaj xov, tshwj xeeb kawg ua , foob nplhaib tsim.

Qib steel rau roj av casing:

Roj casing steel qib tuaj yeem muab faib ua qib steel sib txawv raws li lub zog ntawm cov hlau nws tus kheej, xws li H-40, J-55, K-55, N-80, C-75, L-80, C-90, C -95, P-110, Q-125, thiab lwm yam.Cov txheej txheem sib txawv, qhov tob zoo, kev siv cov qib steel kuj txawv.Cov casing nws tus kheej kuj yuav tsum muaj corrosion-resistant nyob rau hauv corrosive ib puag ncig. Nyob rau hauv cov chaw uas complex geological tej yam kev mob, lub casing kuj yuav tsum tau resistant rau crush.

Qhov hnyav xam mis ntawm roj casing yog raws li nram no:

KG / m = (sab nraud txoj kab uas hla – phab ntsa thickness) * phab ntsa thickness * 0.02466

Roj casing Length:

Muaj peb hom ntev teev los ntawm API: R-1 4.88 txog 7.62m, R-2 7.62 txog 10.36m, R-3 10.36m mus ntev.

Petroleum casing buckle hom:

API 5 CTPetroleum casing buckle hom muaj xws li STC (short round buckle), LTC (ntev round buckle), BTC (ib nrab ntaiv buckle), VAM ( huab tais buckle) thiab lwm yam buckle.

Kev tshuaj xyuas lub cev ntawm cov roj av casing:

(1) Raws li SY/T6194-96.To ua qhov kev sim flattening (GB246-97) tensile test (GB228-87) thiab hydrostatic test.

(2) Hydrostatic test, flattening test, sulfide stress corrosion cracking test, hardness test (ASTME18 lossis E10 latest version), tensile test, transverse impact test (ASTMA370, ASTME23 and the latest version of the related standard) raws li cov kev cai ntawm lub American Petroleum Institute APISPEC5CT1988 thawj tsab OK), kev txiav txim siab ntawm cov nplej loj (ASTME112 version tshiab lossis lwm txoj kev)

Roj casing ntshuam thiab export:

(1) Lub teb chaws ntshuam tseem ceeb ntawm cov roj casing yog: Lub teb chaws Yelemees, Nyiv, Romania, Czech koom pheej, Ltalis, United Kingdom, Austria, Switzerland, Tebchaws Meskas, Argentina, Singapore kuj tuaj.Ntshuam cov qauv xa mus rau American Petroleum Institute tus qauv API5A, 5AX, 5AC.Steel qib yog H-40, J-55, N-80, P-110, C-75, C-95 thiab lwm yam.Cov ntsiab lus tseem ceeb yog 139.77. 72R-2, 177.89.19R-2, 244.58.94R-2, 244.510.03R-2, 244.511.05r-2, thiab lwm yam.

(2) Muaj peb hom ntev uas tau teev tseg los ntawm API: R-1 yog 4.88 ~ 7.62m, R-2 yog 7.62 ~ 10.36m, R-3 yog 10.36m ntev.

(3) Ib feem ntawm cov khoom tuaj txawv teb chaws yog cim nrog LTC, piv txwv li, filament buckle tes tsho.

(4) Ntxiv rau cov qauv API, qee qhov me me ntawm bushing tuaj ntawm Nyij Pooj tau ua raws li cov qauv ntawm cov tuam txhab Nyij Pooj (xws li Nippon Steel, Sumitomo, Kawasaki, thiab lwm yam), steel tooj yog NC-55E, NC-80E, NC -L80, NC-80HE, thiab lwm yam.

(5) Nyob rau hauv cov ntaub ntawv thov, muaj cov tsos mob xws li dub buckle, hlau khi puas, yeeb nkab lub cev folding, tawg buckle thiab xov nruj nreem deb ntawm kam rau ua, coupling J tus nqi tawm ntawm kam rau ua, thiab cov teeb meem sab hauv zoo xws li brittle cracking. thiab qis tawm lub zog ntawm lub casing.

Mechanical zog ntawm txhua chav steel ntawm roj av casing: