API 5CT C95 Casingyog qib siab - steel qib nyob rau hauvPab pawg 2qeb ntawm API 5CT specification. Nws yog tsim tshwj xeeb rau cov roj sib sib zog nqus thiab roj qhov dej uas yuav tsum tau muaj lub zog tensile siab thiab kev sib tsoo siab.
Tsis zoo li C90 lossis T95,C95 feem ntau tsis yog "Sour Service" qib(nws tsis yog tshwj xeeb txwv rau H2S tsis kam los ntawm NACE MR0175 tshwj tsis yog tias cov kev cai tshwj xeeb tau ntsib), tab sis nws muaj qhov muaj zog ntau dua li cov khoom lag luam.J55, K55,,n 80. Nws yog feem ntau siv hauv qhov sib sib zog nqus- zoo ib puag ncig uas cov khoom siv tshuab siab yog qhov kev txhawj xeeb tseem ceeb.
Xim Code ntawm API 5CT C95 Casing & Tubing
Qib C95 raug txheeb xyuas los ntawm cov ximXim av.
| Qib | Pipe Lub Cev Xim Band | Coupling Xim Xim | Coupling Band Xim |
| C95 | Ib Brown Band | Xim av | Tsis muaj(Tshuaj Brown) |
API 5CT C95 Casing Pipe Specification
| Parameter | Specification |
| Txuj | API Spec 5CT / ISO 11960 |
| Khoom Specification Level | PSL-1, PSL-2, PSL-3 |
| Kev kho cua sov | Quenched thiab Tempered (Q + T) |
| Txheej txheem txheej txheem | Seamless (SML) lossis Electric Resistance Welded (ERW) |
| Hom yeeb nkab | Casing thiab Tubing |
API 5CT C95 Chemical Composition (Mass Fraction, %)
| Element | Kev xav tau (Max%) | Lub luag haujlwm hauv C95 Steel |
| Cov pa roj carbon (C) | 0.45% | Muab lub zog thiab hardenability |
| Manganese (Mn) | 1.90% | Ua kom muaj zog thiab toughness |
| Phosphorus (P) | 0.030% | Khaws cia kom tsis txhob muaj brittleness |
| Sulfur (S) | 0.030% | Khaws qis kom tiv thaiv kev tawg hauv sab hauv |
| Silicon (Si) | 0.45% | Siv ua deoxidizer thaum melting |
| Chromium (Cr) | Tsis Qhia * | Feem ntau ntxiv rau kev sib sib zog nqus hardenability |
| Molybdenum (hli) | Tsis Qhia * | Feem ntau ntxiv los txhim kho lub zog ntawm qhov tob |
API 5CT C95 Mechanical Properties
| Khoom | Imperial Units | Metric Units |
| Yield zog (tsawg kawg) | 95,000 psi | 655 MPa ua |
| Yield Strength (Qhov siab tshaj plaws) | 110,000 psi | 758mpa ua |
| Tensile zog (yam tsawg kawg nkaus) | 105,000 psi | 724 MPa ua |
| Yield rau Tensile Ratio | Tsis tau teev los ntawm API | Feem ntau 0.85 - 0.92 |
| Hardness (Tshwj xeeb Range) | 25 - 30 HRC | 255 - 285 HWB |
| Hardness (siab tshaj) | N/A | 312 HBW / 32 HRC (kwv yees.) |
| Elongation (Min%) | Muab xam los ntawm cov mis | Muab xam los ntawm cov mis |
Qib C95 Roj Zoo Drilling Casing Tube Hierarchy
Cov lus no qhia qhov twg C95 haum hauv API 5CT pawg.
| Pab pawg | Qib | Yam ntxwv |
| Pawg 1 | H40, J55, K55, N80 | Lub hom phiaj dav dav, qis- nruab nrab lub zog |
| Pab pawg 2 | L80, C90, T95, C95 | Tswj Yield Strength |
| Pab pawg 3 | P110 | Siab zog |
| Pab pawg 4 | Q125 | Lub zog siab tshaj |
API 5CT C95 Petroleum Casing Pipe Dimension Chart (Nrov Loj)
| OD (Inches) | Qhov hnyav (lb / ft) | Phab ntsa Thickness (hauv) | Drift Diameter (hli) |
| 5-1/2" | 17.00 | 0.304 | 4.767 |
| 7" | 26.00 | 0.362 | 6.151 |
| 7" | 32.00 | 0.453 | 5.969 |
| 9-5/8" | 40.00 | 0.395 | 8.679 |
| 9-5/8" | 53.50 | 0.545 | 8.379 |
| 13-3/8" | 72.00 | 0.514 | 12.191 |
Hardness ntawm Qib C95 Roj Zoo Drilling Tube
Thaum C95 tsis yog qib "kev pabcuam qaub", nws tseem muaj qhov yuav tsum tau ua kom tawv tawv kom ntseeg tau cov khoom sib xws.
| Metric | Tus nqi |
| Hom Hardness Range | 25 - 30 HRC |
| Max Hardness (Cov neeg siv khoom Spec) | Feem ntau thov ntawm Tsawg dua lossis sib npaug li 32 Tsawg dua lossis sib npaug rau 32 HRC |
| Kev xeem yuav tsum tau | Yuav tsum tau rau PSL-2 thiab PSL-3 |
Kev Ntsuas & Kev Ntsuas ntawm API 5CT C95 Casing Pipes
Kev soj ntsuam qib nce nrog PSL (Product Specification Level) cov cai.
| Cov khoom kuaj | Txheem / Txoj Kev | Kev xav tau |
| Kev tshuaj xyuas qhov muag | API 5 CT | Deg tsis xws luag, ncaj |
| Dimensional Check | Calipers / Micrometers | OD, Phab ntsa, Ntev, Nyhav |
| Hydrostatic Test | API 5 CT | 100% pob qij txha yuav tsum dhau |
| Tsis yog -Kev puas tsuaj (NDT) | UT (Ultrasonic) / MPI | Yuav tsum tau rau PSL-2 / PSL-3 |
| Tensile Test | ASTM A 370 Cov Lus Qhia Tshwj Xeeb | Txheeb xyuas Yield & Tensile |
| Flattening Test | API 5 CT | Txheeb xyuas ductility (rau ERW / SML) |
| Impact Test | Charpy V-Ntawv | Yuav tsum tau rau PSL-2 / PSL-3 |
API 5CT C95 Casing Connections Table
| Hom kev sib txuas | Cov ntawv luv | Xov Profile | Foob Mechanism | Cov yam ntxwv ua haujlwm |
| Luv Round Xov | STC | 8 Round threads / nti | Xov Interference (Greas) | Siv rau cov hlua casing luv luv thiab qis- daim ntawv thov nruj. |
| Ntev Round Xov | LTC | 8 Round threads / nti | Xov Interference (Greas) | Muaj zog nro zoo dua STC; ntau heev rau C95 tubing / casing. |
| Buttress Xov | BTC | Trapezoidal (Square -zoo li) | Interference & Lub xub pwg nyom | Siab tensile lub zog thiab zoo heev tawg kuj; standard rau sib sib zog nqus casing. |
| Kev sib txuas hwm hwm | VAM / New VAM | Proprietary (Nqe / Tshwj xeeb) | Hlau -rau- Hlau Seal | 100% roj- nruj; siv nyob rau hauv siab - siab los yog deviated qhov dej. |
| Kev sib txuas hwm hwm | Tenaris Hydril | Proprietary (Blue/MS) | Hlau -rau- Hlau Seal | Superior torque thiab dabtsi yog khoov kuj rau complex drilling. |
| Kab mob heev | XC | Integrated Xov | Hlau Foob & Lub xub pwg nyom | Flush los yog semi- yaug pob qij txha; siv thaum clearance yog txwv (slim-qhov). |
GNEE API OCTG yeeb nkab Hoobkas
FAQ
Cov qib roj zoo casing yog dab tsi?
Pawg 1 suav nrog qib H40, J55, K55, N80, thiab R95, uas tsim nyog rau kev siv dav dav - lub hom phiaj hauv cov cheeb tsam uas xav tau tsawg dua. Pawg 2: suav nrog qib L80, C90, T95, thiab M65, tsim los rau kev txwv tsis pub muaj zog thiab feem ntau siv rau hauv kev pabcuam qaub (hydrogen sulfide- nplua nuj) ib puag ncig.
Dab tsi yog qhov txawv ntawm casing thiab tubing nyob rau hauv lub qhov dej roj?
Lub Hom Phiaj: Casing muab cov qauv kev ncaj ncees, cais cov tsim, thiab tiv thaiv cov dej hauv av. Tubing feem ntau lub hom phiaj thauj cov roj thiab roj los ntawm lub reservoir mus rau saum npoo, tiv thaiv lub casing los ntawm cov kua ntau lawm. Loj: Lub casing yog qhov loj dua - txoj kab uas hla tubular, feem ntau 4.5 "mus rau 30" lossis ntau dua.
Dab tsi yog teeb meem tshwm sim nrog casing?
Cov casings yog ib txwm raug rau cov khoom degradation, sib txawv hauv zos loads, induced stresses thaum lub sij hawm stimulation, natural fractures, plam thiab shear thaum lub sij hawm lawv installation thiab ua hauj lwm ua rau ntau hom casing tsis ua hauj lwm.
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