Casing leh Tubing te pawh a awm
Grade J55 – Q125 chu shallow atanga ultra{2}}deep well application atan a ni
OCTG range kimchang: casing, tubing, couplings leh pup joint te
Standard leh premium connection hrang hrang – BTC, LTC, STC, EUE, NUE te a ni
MTC 3.1 / 3.2 leh third-party inspection hmanga siam chhuah fully traceable
A chakna, collapse resistance leh sour-service durability atan engineer a ni
OCTG Casing siam dan tur|API 5CT High-Oilfield Casing chakna nei
API 5CT Standard chungchang hriattirna
Casing leh tubing te chu oil & gas ah dah a niOCTG system pakhat angin hna a thawk tha hle. Chumicasing hmanga siam a nistrings hian hole chu a stabilize a, formations a isolate a, lei chung leh leihnuai tui a humhim bawk a, chutih laiintubing a nioil, gas emaw injection fluid te tan flow path thlak theih a pe a ni. Kan design an nih chuanAPI 5CT casing leh tubing hmanga siam a niprogram, kan en a, full load path – burst, collapse, tension leh annular pressure – chuvangin casing body,
Octal Pipe hian a thawhpui chauh a niAPI 5CT–licensed mill te chu official API Composite List-ah tarlan a ni, traceable manufacturing, verified metallurgy, leh zawm tur certification kimchang tak guaranteeAPI 5CT (11-na) a ni.lehAPI Q1 / ISO 9001:2015 ah a awm aquality enkawl dan tur ruahmanna siam a ni.
Steel Grade leh Mechanical Properties te a ni
API 5CT grade te hi well condition hrang hrang - shallow, low-pressure oil well atanga ultra-deep HPHT gas field thlenga awm thei tura siam a ni.
Grade tin hian yield strength, tensile strength, leh elongation atan limit bik an nei a, hei hian compression, tension, leh internal pressure hnuaiah mechanical stability a tichiang a ni.
| Pawl | A hman dan tlangpui | Yield chakna (MPa) 1.1. | Tensile chakna (MPa) 1.1. | Min. A sei zawng (%) . |
|---|---|---|---|---|
| J55 | Tuikhuah thuk lo, pressure hniam-a awm | 379–552 | 517 min | 19–21 |
| K55 | Moderate depth, service thlum tak a ni | 379–552 | 655 min a ni | 19–21 |
| N80 Type 1 a ni | Medium-thuk, standard service a ni | 552–758 | 689 min a ni | 18–20 |
| N80 Q | Q&T variant a ni a, a hardness pawh a inang tlang hle | 552–758 | 689 min a ni | 18–20 |
| L80 (13Cr / 9Cr) a ni. | CO2 / H2S boruak hnim hring | 552–655 | 655 min a ni | 18–20 |
| C90 | Tuikhuah thuk tak, sour service | 621–758 | 689 min a ni | 15–18 |
| T95 | HPHT / a hmin na tak | 655–758 | 724 min a ni | 15–18 |
| P110 | Thuk tak, pressure sang tak-na hmanna | 758–965 | 862 min | 15–18 |
| Q125 | Ultra-HPHT tuikhuah thuk tak a awm | 862 aia lian emaw, a tlukpui emaw. | 931 aia lian emaw, a tlukpui emaw | 12–15 |
Elongation tih hian API 5CT Appendix F-a fracture hmaa longitudinal strain tlem ber a kawk a ni.
Octal Pipe hian operator leh EPC te chu a pui thingrade thlan dan, collapse leh burst resistance thlirletna, .lehH2S / CO2 inmilna tehfung siamstring tin hian project-a geological leh design envelope a tlin theih nan.
API 5CT Casing leh Tubing: Field lama harsatna lei duhtute ven duh te
API 5CT casing leh tubing pipe te a awm bawk"standard pakhat tlin" tura lei an ni lo. Leak, plugging, annular pressure surprise, emaw acceptance dispute awm lovin well stable leh flowing-a awm reng nan an lei a nischu chu downtime-ah a chang a, rework a ni.
A senso tam zawk hi hlawhchhamna lian tak pakhat atanga lo chhuak a ni lo. PO-a scope gap tenau anga intan, predictable operational headaches atanga lo chhuak a ni.
1.Casing integrity leh annular pressure build-up
Operator te pawhin an hmu mai theiannulus pressure pangngai lo tak, pressure nghet tak, emaw annuli inkara pressure inthlauhna emaw. Trigger te hi a ni fo thinintegrity chungchangah, isolation tha lo, corrosion, emaw thread/coupling chhia emaw a awm thei-chuan buaina chu a zual zel a, a chhan chu production problem mai ni lovin barrier/well integrity discussion a lo ni ta a ni.
2.Plugging leh khap (wax/scale/sand/debris) .
Artificial lift emaw production emaw lai hian khapna chu hetiang hian a lang chhuak thinrate tlahniam, pressure nghet lo, pump load sang zawk, emaw cleanout fo thin. A bulpui ber chu "pipe quality" chauh a ni lo-a inzawmkhawm a niflow regime + deposit + chhungril roughness + debris control leh thianghlimna.
3.Corrosion-driven failures (CO2/H2S, chloride tamna tui cut) .
Corrosion issues hi receiving-ah chuan dramatic takin a lang lo. A hnuah an rawn lang leh apitting, leakage, leh run life tih tawi te a ni, a bik takin sour emaw wet CO2 service-ah chuan metallurgy, hardness control, leh inspection scope te chu order-ah chiang taka ziah a nih loh chuan.
4.Rig-a delay leh cross{2}}threading siam-up
Hlawhchhamna man to ber chu crew-te nghah laia thil thleng hi a ni. String chu a make up tha lo a nih chuan hun i hloh nghal vat thin. A chhan tlangpui:mixed connection types, thread chhia, thread gauging evidence bo, emaw coupling scope chiang lo emaw a awm.
Field-a harsatna awm thei tur venna Octal Pipe Controls
| Field problem i pumpelh duh a ni | Shipment hmaa Octal Pipe-in a control thin | Proof atana kan pekte (i document pack-ah) . |
|---|---|---|
| Tubing hi start-up emaw workover emaw hnuah a leak thin | Kan lock aconnection + coupling scope a awm bawki PO (NUE/EUE emaw gas-tight premium) ah, connection readiness chu release gate angin en la ("default" threads a awm lo). | Connection hriat theihna + traceability, lehthread gauging evidence chu a tarlan hunah; torque-turn result a nia tarlan hunahseal verification atan hman a ni. |
| Rig-side make-up tihkhawtlai / cross-threading | Thread condition hi handling hmangin kan enkawl thin:thread venhimna, stable bundling, leh clear marking te a awm bawkmixed-string leh transport tihchhiat loh nan. | Packing list a langprotector scope + bundle mapping hmanga siam a ni, marking list / tally support chu lot/bundle ID-a inzawm a ni. |
| Annular pressure mak tihna / integrity chungchanga inhnialna | Inspection scope chu i tan kan align aPO/ITP a nichuvangin integrity-related verification chu tihfiah a ni ("testing awm thei" ni lovin). | Hydrotest record a nih chuan a tarlang, a tarlan hunah drift record, leh NDT report (UT/ECT/MPI) te a ni.a tarlan hunah chauhmethod + scope + result nen a ni. |
| Pump laiin plugging / khapna (wax/scale/sand/debris) . | Kan enkawlinternal clearance control a nileh delivery scope-a tel ve angin chiang taka dawng-chuvangin string chu pumpelh theih loh khapna awm lovin a kal thin. | Drift evidence a nia tarlan hunah, chubakah dimensional record leh tally/marking te pawh a awm a, chu chuan string dik lo-running leh rework a tihtlem phah a ni. |
| CO2/H2S service-a corrosion-driven hlawhchhamna | Service notes kan confirm hmasa (CO2/H2S / water cut / temperature) a, order chu kan scope a, chuvangin material thlan leh inspection chu assumption-ah dah a ni lo. | MTC/CMTR leh traceability nei; sour-service nena inzawm thil mamawh leh inspection record dang eng pawha tarlan hunahin PO/ITP ah a awm. |
Connection chi hrang hrang leh Technical Options te
Casing Connection hrang hrangte
| Lampang | Hrilhfiahna | Hman dan tlangpui |
|---|---|---|
| STC– Thread tawi tak, zungbun inzawmkhawm | Standard round thread, siam awlsam-up | Tuikhuah thuk lo / pressure hniam tak |
| LTC a ni– Thread sei tak tak hmanga inzawmkhawm | Thread engagement rei zawk, load distribution tha zawk | Tuikhuah (medium to deep well) a awm |
| BTC– Buttress Thread hmanga inzawmkhawm | Trapezoidal form a ni a, tensile efficiency sang tak a nei bawk | Pressure well thuk / sang-a awm |
| Premium Gas-Tight tak a ni | Metal-to-metal seal, torque shoulder design a ni | HPHT leh tuipui kama hnathawhna hmun a ni |
Tubing inzawmna te
| Lampang | Hrilhfiahna | Hman dan tlangpui |
|---|---|---|
| EUE a ni– Pawn lam Upset End | Pull load sang tak tan end thickened leh coupling connection | Standard production tubing hmanga siam a ni |
| NUE– Non-Upset tawp | Straight end, rit leh man tlawm zawk | Service dilna tlemte (moderate) a ni |
| Integral / Premium Tube hmanga siam a ni | Machine hmanga siam integral joint emaw metal-seal chi emaw a ni | Gas / condensate / hnim hring service a ni |
Threaded connection zawng zawng chu a inmil vekAPI 5B hmanga teh a nistandards leh torque-turn testing, seal-integrity check, leh mechanical load simulation hmanga finfiah a ni.
Octal Pipe hmanga I hmuh theih
Octal Pipe hi China-based OCTG Casing and Tube siamtu angin a thawk a, practical local advantage-tight coordination across pipe, threading leh couplings te a nei a, chubakah factory-side digital control of marking, bundle lists leh traceability-chuvangin casing package chu run-ready a thleng a, preventable delays a pumpelh bawk dawngtu leh rig-a awm.
I lei hunahOCTG pipe hmanga siam a ni, "advantage" chu slogan a ni lo-supplier-in a tih leh nih loh a nihmanrua leh process control te a nia vawi khatna atana pawm theihna pass thei thread, coupling leh pipe body te chu a siam chhuak fo thin. Octal Pipe hmang hian controllable step leh auditable outputs vel a supply program siam i hmu a:
- Repeatable make-up atana siam controlled threading:production hi stable threading practices leh inspection gate vel ah a inrual a, chuvangin i order connection chu i dawn-supported connection a nithread gauging evidence chu a tarlan hunahleh connection hriat theihna chiang tak (STC/LTC/BTC; EUE/NUE; premium options) te a ni.
- Couplings te hi thil pawimawh tak anga ngaih a ni a, accessory anga ngaih a ni lo:coupling processing chu ordered grade leh service nena inmil tura enkawl a ni a, inspection checkpoint-te chuan field complaint-connection-related rejection leh premature wear tam ber a tihtlem phah a ni.
- Project reality nena inmil inspection theihna:i PO/ITP-in a koh chuan verification chu defined scope (method + coverage + acceptance basis) nen execute a ni a, report angin delivered a ni-chuvangin "NDT / hydrotest / drift" hi marketing words ni lovin measurable outputs a ni.
- Workflow-a traceability siam chhuah:heat/lot mapping leh marking chu packing-ah kalpui a ni a, release package (MTC 3.1/3.2, a tul hunah third-party inspection) chu QA/TPI review atan buatsaih a ni a, post-shipment document chasing atan a ni lo.
Casing leh Tubing Running Services Company te nena thawhhona tha tak neih
Delay tam zawk hi interface with ah a thleng thincasing leh tubing kalpui dan tur service company te an ni-pipe grade a dik loh vang ni lovin, string chu chhuah theih a nih loh vang leh a kal tluang thei lo vang zawk a ni: tally hi bundle nen a inmil lo a, thread te chu re-handling hnuah bawlhhlawh emaw a chhe emaw a lo thleng a, emaw drift/make-up beisei chu lock a ni ngai lo. Procurement thlirna atang chuan a thaOCTG pipe service te a nisupply package chu mill paperwork chauh ni lovin rig-floor reality atana buatsaih a nih leh nih lohah a innghat.
Octal Pipe hian he handover hi delivery-a tel ve angin a enkawl a: shipment chu bundle-in running sequence nena inmil turin identified a ni a, thread-te chu transport leh yard move atan venhim a ni a, document pack pawh buatsaih a ni a, chutiang chuan receiving-in missing evidence chu chase lovin lot chu a clear thei a ni. A tum chu a awlsam-running crew-te'n joint an lak tan tirh hian IDs check leh turin, threads re-clean turin an ding lo va, acceptance basis chungchangah pawh an inhnial lo.
PO-a lock tur thil pahnih (running crew-te’n rig time an hloh loh nan):
- Tally + discipline dawngtu:joint ID format, bundle grouping, packing/marking list alignment, leh traceability mapping (PO/ITP-a tarlan a nih chuan) te a ni.
- Run-ready pawm theihna:drift basis (API vs special drift), connection type, leh thread gauging / torque-turn evidence mamawh eng pawh (PO/ITP-a tarlan a nih chuan).
OCTG Pipe Head Interface hmanga siam a ni
- Casing leh tubing head inmilna: Installation-ah drift/ID leh connection thlan dan a inthlau loh nan hanger leh wellhead interface mamawh chu a hmain confirm hmasa phawt ang che.
- Connection leh sealing: OCTG pipe connection type chu wellhead nen match la, pressure-up laiin leak a awm loh nan make-up practice siam rawh.
- Field joint discipline: Wellhead make-up hian contamination a do loh nan transport hmangin protector leh thread te chu vawn fai rawh.
FAQ
Tuikhuah chhunga casing leh tubing hi eng nge a danglamna?
Engvangin nge "to-standard" casing/tubing string te hi field hmasa berah a la leak emaw a la fail emaw?
Incoming inspection atan eng document nge casing leh tubing nen lo kal tur?
Certification pek chhuah a ni
CE Certificate neih a ni
ISO 9001 Certificate a ni
API Q1 Certificate a ni
ABS Certificate a awm bawk
AP-5L Certificate pek a ni
API-5CT Certificate pek a ni
| Thil | Parameter a ni |
|---|---|
| Nihphung pangngai | API 5CT (11-na) a ni. |
| Thilsiam | Casing / Tubing + Couplings (OCTG package) hmanga siam a ni. |
| Grade hrang hrang a awm | J55, K55, N80 (N80Q), L80 (13Cr/9Cr), C90, T95, P110, Q125 te pawh a awm bawk |
| Connection hrang hrangte | BTC, LTC, STC, EUE, NUE (premium duhthlan tur) te pawh a awm bawk. |
| Key thlan dan tur | A puak / A tlakbuak / Tension / Annular pressure |
| QA scope (a duh duh) 1.1. | NDT, hydrotest, drift, thread gauging (a tul angin) te pawh a awm thei. |
| Document hrang hrang a awm | EN 10204 3.1/3.2 MTC + traceability pack (a tul angin) . |
hot tags .: Casing leh Tubing, China Casing leh Tubing siamtu, supplier, factory
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