Qhov no yog ib tug heev unconventional thiab technically teeb meem specification. Ntau lub tuam txhab sau npe "API 5CT" lossis "ISO 11960" hauv lawv cov SSAW yeeb nkab khoom catalogs, thiab cov ncauj lus kom ntxaws kev soj ntsuam xyuas kom paub meej tias qhov kev sib xyaw no muaj nyob rau hauv kev lag luam muab. Txawm li cas los xij, nws sawv cev rau qhov tsis sib xws ntawm cov txheej txheem tsim khoom (kauv vuam) thiab daim ntawv thov npaj (downhole casing / tubing).Kev ceev faj heev thiab kev tshuaj xyuas kom zoo yog qhov yuav tsum tau ua ua ntej txiav txim siab cov khoom lag luam.
Cov lus hauv qab no qhia txog cov ntsiab lus tseem ceeb thiab cov teeb meem tseem ceeb:
| Yam ntxwv | Nqe lus piav qhia / Xav tau |
|---|---|
| Txuj | API 5CT / ISO 11960 Daim Ntawv Pov Thawj: "Petroleum thiab natural gas industries - Cov kav hlau siv los ua cov kav dej lossis cov kav dej rau qhov dej". |
| PSL Qib | PSL1: Cov txheej txheem zoo rau cov casing thiab tubing, qhia cov kev cai yooj yim rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev sim. |
| Kev tsim khoom | Spiral Submerged Arc Vuam (SSAW/HSAW): Ua los ntawm kub- dov steel coil, nrog txuas txuas ntxiv helical weld seam.Cov txheej txheem no tsis yog ib qho kev lees paub lossis tus qauv rau kev tsim cov casing / tubing raws li API 5CT . |
| Common Steel Qib | H40: Qhov qis tshaj - qib zog casing (min. tawm los 40,000 psi / 276 MPa). J55 / K55: Cov qib sib piv rau cov kev pabcuam dav dav dav hlau / raj (min. yield 55,000 psi / 379 MPa). |
| Hom Loj Loj | Sab nraud txoj kab uas hla: 219mm txog 4064mm (kwv yees . 8" rau 160"). Phab ntsa ThicknessLoj: 3.2mm txog 30mm (ntau ntau 5-25.4mm). Ntev: Mus txog 50 m (tseem ceeb ntev dua li cov pob qij txha raug mob). |
| Cov Kev Ntsuas Tseem Ceeb | Tshuaj ntsuam xyuas: Ib qho cua sov / ntau kom tau raws qib - txwv tshwj xeeb . Tensile Test: Txheeb xyuas qhov tawm los thiab lub zog tensile. Kev Xeem Hardness: Qhov tseem ceeb rau qib kev pabcuam qaub (piv txwv li, L80) kom ntseeg tau tias kev ua tau zoo ntawm vuam / HAZ. Flattening Test / Guided Khoov Test: Txheeb xyuas qhov vuam ductility. Hydrostatic Test: Txhua yeeb nkab ib leeg kuaj. Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT): 100% ultrasonic (UT) lossis X-ray tshuaj xyuas ntawm qhov vuam seam . Drift Test: Ua kom muaj kev tshem tawm sab hauv rau cov cuab yeej downhole . |
| Muaj peev xwm siv tau | Conductor Pipe / Tsav Pipe: Thawj zaug, loj- txoj hlua txoj kab uas hla hammered rau hauv av kom stabilize nto av, pom tsawg kawg nkaus siab. Kev siv cov qauv / Piling: Qhov twg "casing-qib" steel yog xav tau rau nws lub zog, tab sis cov yeeb nkab yog siv los ua cov tswv cuab (xws li caissons, lub hauv paus kev txhawb nqa, platform ceg), tsis yog downhole . Dej Dej Casing: Rau qhov loj heev - txoj kab uas hla, qis - qhov dej siab . |
| Daim ntawv pov thawj | Mill Test Certificate feem ntau rauEN 10204 Hom 3.1los yog sib npaug, tab sis ib qho ntawv pov thawj rau kev siv downhole yuav xav tau kev tsim nyog ntxiv. |
🚫 Qhov Tseem Ceeb Tsis Zoo: Yog vim li cas qhov no yog qhov teeb meem
Qhov teeb meem tseem ceeb yog API 5CT (thiab nws cov ISO sib npaug ISO 11960) yog tsim los raudownhole casing thiab tubing, uas yuav tsum tau tiv taus txoj kev nyuaj siab triaxial, txhawb kev sib txuas, thiab tiv thaiv qhov chaw corrosive downhole. Spiral Submerged Arc Vuam (SSAW) yog txheej txheem npaj raupipeline kev thauj mus los(API 5L).
Cov lus hauv qab no qhia txog qhov tseem ceeb ntawm kev tsis sib haum xeeb:
| Kev Sib Tw | Vim li cas Kauv SAW yog Teeb meem rau API 5CT |
|---|---|
| Weld Orientation | Qhov ntev, tsis tu ncua helical weld seam tsim ib txoj hauv kev nyiam rau kev ua tsis tiav nyob rau hauv txoj kev downhole loads (collapse, tawg, axial nro). |
| Thaum tshav kub kub-Affected Zone (HAZ) | Cov txheej txheem SAW tsim ib qho tseem ceeb HAZ raws tag nrho cov seam, uas tuaj yeem yog lub ntsiab lus tseem ceeb rau corrosion thiab sulfide stress cracking (SSC) hauv cov dej qaub. |
| Dimensional Precision | Ua kom tiav qhov nruj tolerances rau roundness thiab phab ntsa thickness yuav tsum tau rau hwm casing kev twb kev txuas yog heev nyuaj nrog muab kauv txoj kev. |
| Tshaj tawm -Kev kho cua sov (PWHT) | Ntau qib API 5CT (piv txwv li, N80-Q, L80, P110) yuav tsum tau quenching thiab tempering. Uniformly tshav kub-kho ib tug ntev kauv weld seam yog complex thiab kim. |
| Kev lees txais kev lag luam | Kev lag luam roj thiab roj tsis muaj cov ntaub ntawv teev tseg ntawm kev siv kauv -weld yeeb nkab rau cov ntawv thov downhole. Tag nrho cov kev sib txuas tsim thiab cov txheej txheem khiav yog seamless lossis ERW yeeb nkab. |
📝 Kev txiav txim siab tseem ceeb & cov lus pom zoo
Yog tias koj ntsib "API 5CT PSL1 Spiral Submerged Arc Pipe" raws li kev lag luam muab, ua nrog ceev faj heev.
Txheeb xyuas Lub Hom Phiaj Siv: Txiav txim seb cov yeeb nkab puas yog npaj raudownhole zoo tsimlos yog rautsis yog- cov ntawv thov zoo(conductor yeeb nkab, piling, structural). Nws txoj kev siv yog txwv hnyav rau tom kawg.
Daim Ntawv Thov Kev Tsim Nyog: Rau ib qho zoo- daim ntawv thov muaj feem xyuam, hais kom tshuaj xyuas cov chaw tsim khoom cov ntaub ntawv tsim nyog, suav nrog:
Welding Procedure Qualification (WPS/PQR).
Cov txheej txheem kev kho cua sov.
Kev soj ntsuam Hardness thoob plaws lub vuam thiab HAZ.
Tag nrho- daim ntawv qhia txog kev puas tsuaj loj (kev sib tsoo, tawg, kev sib txuas sib txuas) ib API 5C5 .
Kho Specification rau Downhole Siv: Ib txwm qhiaAPI 5CT (los yog ISO 11960) seamless los yog ERW yeeb nkablos ntawm reputable mills rau casing thiab tubing.
Qhov tseeb Specification rau Pipeline/Structural Use: Rau cov kav loj - txoj kab uas hla uas xav tau lub zog sib npaug rau API 5CT qib, qhia meejAPI 5L PSL1 / PSL2 SSAW yeeb nkabnrog rau cov khoom siv tshuaj ntxiv yog tias xav tau.
Hauv cov ntsiab lus, "API 5CT PSL1 Spiral Submerged Arc Pipe" yog ib yam khoom uas tsis yog -tus qauv uas sib txuas cov ntaub ntawv tshwj xeeb nrog cov txheej txheem tsim cov kav dej. Nws siv yog txwv rau tsis yog- tseem ceeb, loj- daim ntaub ntawv dav dav uas nws ua haujlwm ntau dua li cov tswv cuab ntawm cov txheej txheem ntau dua li lub siab- muaj qhov cuam tshuam zoo. Rau txhua daim ntawv thov uas muaj kev ncaj ncees, tus qauv API 5CT seamless yeeb nkab yog tib qho kev xaiv tsim nyog.
