
Casing tan Tubing
Grades J55 – Q125 parad saray aplikasyon na malimpek anggad ultra-deep ya bobon
Kompleton OCTG range: casing, tubing, couplings tan pup joints
Standard tan premium ya koneksyon – BTC, LTC, STC, EUE, NUE
Sigpot ya nasubaybayan so ginawa ya walay MTC 3.1 / 3.2 tan third-party inspection
Ginawa parad biskeg, ag-ontumba tan ag-ontutundan serbisyo
Proseso na Panaggawa na OCTG Casing|API 5CT High-Strength Oilfield Casing
Pangigapo ed API 5CT Standard
Casing tan tubing ed oil & gasmankimey a maong bilang sakey a sistema na OCTG. Saycasingsaray lubir so mamapabiskeg ed abut, mangibiig ed saray pormasyon tan manproprotekta ed danum ed tapew tan dalem na dalin, bangta saytubomangiiter na nasalatan ya dalan na agos na larak, gas odino pluido ya ineksionan. No mandesinyo tayo naAPI 5CT casing tan tubingprograma, nengnengen tayo so full load path – burst, collapse, tension tan annular pressure – kanian say casing body,
Say Octal Pipe et mankikimey labat edAPI 5CT-licensed mills ya akalista ed opisyal ya API Composite List, ya mangigarantiya na nasubaybayan ya panaggawa, na-verify ya metalurhiya, tan kompleton sertipikasyon ya mitunosan edAPI 5CT (Koma-11 ya Edisyon)insanAPI Q1 / ISO 9001:2015sistema na panangasikaso ed kalidad.
Saray Grado na Asero tan Saray Mekanikal a Kablian
Saray grado na API 5CT et adesinyo pian nasumpal so nanduruman kondisyon na bobon - manlapud mababaw, abeban presyon na bobon na langis anggad ultra-aralem ya HPHT gas fields.
Kada grado et walay espisipikon limitasyon to parad yield strength, tensile strength, tan elongation, ya mangiseguro na mekanikal ya estabilidad ed silong na compression, tension, tan internal pressure.
| Grado | Kaslakan ya Aplikasyon | Yield Strength (MPa) | Tensile Strength (MPa) | Min. Say inkaawang (%) |
|---|---|---|---|---|
| J55 | Saray malimpek, abeban presyon a bobon | 379–552 | 517 min | 19–21 |
| K55 | Katamtaman so kaaralem, masamit ya serbisyo | 379–552 | 655 min | 19–21 |
| N80 Type 1 | Medium-depth, standard service | 552–758 | 689 min | 18–20 |
| N80 Q | Q&T variant ya parepareho so inka-malet to | 552–758 | 689 min | 18–20 |
| L80 (13Cr / 9Cr) | CO2 / H2S maasim iran kaliberliber | 552–655 | 655 min | 18–20 |
| C90 | Aralem iran bobon, maasim a serbisyo | 621–758 | 689 min | 15–18 |
| T95 | HPHT / graben ampetang | 655–758 | 724 min | 15–18 |
| P110 | Saray aplikasyon ya aralem, atagey a presyon | 758–965 | 862 min | 15–18 |
| Q125 | Ultra-deep HPHT wells | Mas baleg nen o mipara ed 862 | Mas baleg nen say 931 | 12–15 |
Say elongation et manutukoy ed sankaabebaan ya longitudinal strain antis na fracture unong ed API 5CT Appendix F.
Say Octal Pipe et ontutulong ed saray operator tan EPC edpanagpili na grado, panagsukimat ed pakatumba tan pakasabog na resistensya,insanH2S / CO2 compatibility evaluationpian naseguro ya kada string et makaabot ed geological tan design envelope na proyekto.


API 5CT Casing tan Tubing: Saray Problema ed Lawak ya Labay ya Naprebentaan na Saray Managsaliw
API 5CT casing tan tubing pipesag-asaliw pian "nasumpal so sakey ya estandarte." Sinaliw iratan pian mansiansian malet tan onaagus so bobon- ya anggapoy onlelereg, onsasakbong, onsaew so annular pressure, odino ag-onsasangsangan ed pangawatsya magmaliw ya downtime tan rework.
Maslak ed gastos et ag manlalapud sakey a baleg ya inkagba. Manlalapud naisip ya operational headaches ya onggapo ed melag iran scope gaps ed PO.
Say integridad na casing tan say annular pressure build-up
Nayarin nanengneng na saray operatorabnormal ya annulus pressure, tuloytuloy ya presyon, odino ag-inkabalanse na presyon ed baetan na annuli. Saray pansengegan et mabetbetisyu ed integridad, makapuy ya isolation, corrosion, odino aderal iran thread/couplings-tan say problema et onloor lapud nagmaliw ya sakey a babeng/pantotongtong nipaakar ed integridad na bobon, aliwan problema labat ed produksyon.
2.Plugging tan restriction (wax/scale/sand/debris)
Legan na artificial lift o produksyon, saray panameget so ompatnag bilangonlelereg so rate, ag-establi so presyon, mas atagey so pump load, odino mabetbet ya manlilinis. Say manunan sengegan et matalag ya say "kalidad na tubo" labat-sakey itan a kombinasyon naagos na agos + deposito + internal roughness + debris control tan kalinisan.
3.Corrosion-failures (CO2/H2S, atagey ya chloride water cut)
Saray isyu nipaakar ed corrosion et ag-ontanlan dramatiko no naawat. Ompatnag ira ed saginonor bilangpitting, leakage, tan pinatikeyan ya bilay, lalo la ed sour o wet CO2 service no say metalurhiya, hardness control, tan inspection scope et ag malinew ya insulat ed order.
Manggawa na-up iran delay tan man-cross-threading ed rig
Say sankamablian ya inkagba et samay nagagawa legan ya manaalagar iray tripulante. No ag-onkupas so lubir, maples kan naandi so panaon. Saray kaslakan a sengegan:nanduruman klase na koneksion, aderal iran sinulid, anggapoy ebidensya na panagsukat na sinulid, odino agmalinew a sakop na panag-apiger.
Saray Kontrol na Octal Pipe ya Makaamper ed saray Problema ed Uma
| Problema ed uma ya labay mon paliisan | Antoy kontrolen na Octal Pipe antis ya ipawit | No antoy iter mi bilang prueba (diad document pack yo) |
|---|---|---|
| Manlelesa so tubo kayari na pangigapo odino pan-workovers | Ikandado mi sokoneksyon + sakop na panag-apigered PO yo (NUE/EUE o gas-tight premium), tan tratoen so inkaparaan na koneksyon bilang sakey a release gate (anggapoy "default" ya thread). | Say pakabidbiran na koneksion + pakasubaybayan, insanebidensya na panagsukat na thread no nibaga; torque-resulta na turnno nibagaparad paneknek na selyo. |
| Rig-side make-up delays / cross-threading | Naasikaso mi so kondisyon na thread diad panamegley na panag-asikaso:saray proteksion na sinulid, malet a panagtipon, tan malinew a markapian naprebentaan so mixed-string tan transport damage. | Ipapanengneng so listaan na saray impakeprotektor ya sakop + bundle mapping, marking list / tally support ya akabit ed lot/bundle IDs. |
| Annular pressure surprises / integrity disputes | Ipapasen mi so sakop na inspeksyon edPO/ITPkanian say integrity-related verification et nidepinsa (aliwan "testing available"). | Rekord na hydrotest no nibaga, drift record no nibaga, tan NDT reports (UT/ECT/MPI)no nibaga labatwalay paraan + sakop + resulta. |
| Pansaksak / panameget legan na panagbomba (wax/scale/sand/debris) | Mantrato kamipanangontrol ed loob na linisantan say pakaawat na kalinew bilang kabiangan na delivery scope-pian say string et ombatik ya anggapoy napaliisan iran panameget. | Ebidensya na inkaapag-apagno nibaga, tan saray dimensional records tan tally/marking ya mamawas ed lingo-string running tan rework. |
| Corrosion-saray ag-inkayadyari ed serbisyo na CO2/H2S | Masakbay min kukumpirmaen iray service notes (CO2/H2S / water cut / temperature) tan i-scope mi so order pian say pampili tan inspeksion na materyales et ag-ipaulyanan ed saray panag-isip. | MTC/CMTR ya walay traceability; sour-service ya misiglaotan ed saray kakaukolanen tan antokaman ya kaaruman ya rekord na inspeksyonno nibagadiad PO/ITP. |

Saray Klase na Koneksion tan Saray Teknikal ya Opsyon
Saray Koneksyon ed Kasing
| Klase | Deskripsyon | Kaslakan ya Uusaren |
|---|---|---|
| STC– Antikey a Bilog a Pankakasakey na Lubir | Standard ya malimpek a sinulid, mainomay ya gawaen-up | Mababaw iran bobon / katamtaman ya presyon |
| LTC– Andukey a Bilog a Pankakasakey na Lubir | Mas andukey ya pankakasakey na sinulid, mas maong ya pangibunog na karga | Saray katamtaman anggad aralem iran bobon |
| BTC– Buttress Thread Coupling | Trapezoidal ya porma ya atagey so tensile efficiency to | Saray bobon ya aralem / atagey |
| Premium Gas-Tight | Metal-yad-metal a seal, torque shoulder design | HPHT tan saray operasyon ed dayat |
Koneksion na Tubo
| Klase | Deskripsyon | Kaslakan ya Uusaren |
|---|---|---|
| EUE– Pansumpalan na Pakadismaya ed Paway | Makapal so sampot tan koneksion na panag-awit parad atagey iran pull loads | Standard production tubing |
| NUE– Non-Upset End | Diretso so sampot, abeba so belat tan gastos | Saray aplikasyon na serbisyo ed katamtaman |
| Integral / Premium Tube | Machined integral joint o metal-seal type | Gas / condensate / sour service |
Amin ya koneksyon ya walay sinulid to et ontutumbok edAPI 5B gaugingestandarte tan na-verify panamegley na torque-turn testing, seal-integrity checks, tan mechanical load simulation.
Antoy Naala Mo ed Octal Pipe
Say Octal Pipe et mankikimey bilang sakey a China-based OCTG Casing and Tube manufacturer ya walaan na praktikal a lokal a bentaha-malet a koordinasyon ed baetan na tubo, threading tan couplings, tan say digital control ed panagmarka, listaan na bundle tan traceability ed pabrika-pian say casing package et onsabi a {4} tan napaliisan so delay ya nareresolbe diad rig.
No mangaliw kaOCTG pipe, say "bentaha" et aliwan slogan-no kasin say supplierkagawaan tan kontrol ed prosesotuloytuloy ya manggagawa na saray sinulid, panag-apiger, tan saray laman na tubo ya ag-aawaten ed primeron pankanawnawa. Diad Octal Pipe, nawalaan kay supply program ya ginawa ed saray nakontrol ya kundang tan na-audit ya output:
- Kontroladon threading ya ginawa parad naulit ya make-up:say produksyon et naorganisa ed kaliberliber na saray stable threading practices tan inspection gates, kanian say koneksion ya orderen mo et samay koneksion ya naawat mo- ya susuportaan naebidensya na panagsukat na thread no nibagatan malinew ya pakabidbiran na koneksion (STC/LTC/BTC; EUE/NUE; premium ya opsyon).
- Saray couplings et ipapasen ya importantin kabiangan, aliwan accessory:say panagproseso na coupling et naasikaso pian mipara ed inorder ya grado tan serbisyo, tekep na saray inspeksion ya checkpoint ya mamawas ed saray sankabaloan ya reklamo ed lawak-connection-rejects tan premature wear.
- Say pakayarin man-inspeksion ya mipara ed realidad na proyekto:no kaukolan na PO/ITP yo, say verification et nagawa ya walay depinidon sakop (method + coverage + acceptance basis) tan niiter bilang report-kanian say "NDT / hydrotest / drift" et aliwan salitan panaglako no ag ingen nasukat iran output.
- Say traceability ya inletneg ed workflow:say heat/lot mapping tan marking et gagawaen ed panag-impake, tan say release package (MTC 3.1/3.2, third-party inspection no nakaukolan) et naorganisa parad QA/TPI review, aliwan post-shipment document chasing.

Mankikimey ed saray Kompanya na Casing tan Tubing Running Services
Maslak ya delay et nagagawa ed interface yasaray kompanya na serbisyo na panag-casing tan tubing-aliwan lapud aliwan duga so grado na tubo, noagta lapud ag nayarin ibulos so string tan ag-onkukurang a maong: say tally et ag mipara ed saray bundle, saray thread et onsabin marutak odino aderal kayari na re-handling, odino saray drift/make-up ya iilaloan et agbalot na-lock. Manlapud panmoria na panagsaliw, maongSerbisyo na tubo na OCTGmandepende no kasin say suplay et aka-organisa parad rig-floor reality, aliwan parad saray papeles labat ed gilingan.
Say Octal Pipe so mangaasikaso ed sayan pangiter bilang kabiangan na pangiter: say kargamento et ibubundle tan ibiig pian mipara ed running sequence, saray thread et protektado parad transportation tan yard moves, tan say document pack et iparaan pian say mangawat et makalinisan na lote ya ag-ontumbok ed kulang ya ebidensya. Say gagala et simpli-no say ombabatik a tripulante et onggapon mangala na saray kasukasuan, ag ira ontunda pian nengnengen lamet iray ID, linisan lamet iray thread, odino mansangsangan nipaakar ed basiyan na pangawat.
Duaran bengatla so i-lock ed PO (pian ag naandi so oras na rig na saray ombabatik):
- Tally + mangawat na disiplina:joint ID format, bundle grouping, packing/marking list alignment, tan traceability mapping (no akasulat ed PO/ITP).
- Run-ready acceptance:drift basis (API vs special drift), klase na koneksyon, tan antokaman ya ebidensya na thread gauging / torque-turn ya nakaukolan (no nibaga ed PO/ITP).
OCTG Pipe Head Interface
- Say pankakasakey na casing tan tubing head: Kumpirmaen ya masakbay iray kakaukolanen ed hanger tan wellhead interface pian ag mankontraan iray pilien ya drift/ID tan koneksyon legan ya i-install.
- Koneksyon tan panagselyo: Iparaan so klase na koneksyon na tubo na OCTG ed ulo na bobon tan manggawa na praktis pian napaliisan so panag-leak legan na pressure-up.
- Field joint discipline: Pansiansiaen iray protektor tan malinis iran sinulid panamegley na transportasyon pian say wellhead makeup et ag makalaban ed kontaminasyon.
FAQ

Antoy pandumaan na casing tan tubing ed bobon?
Akin et saray "to-standard" ya lubir na casing/tubing et siansia nin onlelereg odino onkapuy ed gapo na uma?
Anto ran dokumento so nepeg ya iter ed casing tan tubing parad onsabin inspeksion?
Saray sertipikasyon

CE Certificate

ISO 9001 Certificate

API Q1 Certificate

ABS Certificate

AP-5L Certificate

API-5CT Certificate
| Bengatla | Parametro |
|---|---|
| Estandarte | API 5CT (Koma-11 ya Edisyon) |
| Produkto | Casing / Tubing + Couplings (OCTG package) |
| Saray grado | J55, K55, N80 (N80Q), L80 (13Cr/9Cr), C90, T95, P110, Q125 |
| Saray koneksion | BTC, LTC, STC, EUE, NUE (premium optional) |
| Basiyan ed panagpili na manunan | Insabog / Inkagba / Intension / Annular pressure |
| QA scope (optional) | NDT, hydrotest, drift, thread gauging (no nakaukolan) |
| Saray dokumento | EN 10204 3.1/3.2 MTC + traceability pack (unong ed nakaukolan) |
Saray Mainit ya Tag: Casing and Tubing, China Casing and Tubing manufacturers, suppliers, factory
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