
Casing ne Tubing a wɔde yɛ nneɛma
Grades J55 – Q125 ma abura a ɛnyɛ den kosi nea emu dɔ kɛse a wɔde di dwuma
OCTG ahorow a edi mũ: casing, tubing, couplings ne pup nkwaa
Nkitahodi a ɛyɛ gyinapɛn ne nea ɛyɛ fɛ – BTC, LTC, STC, EUE, NUE
Ayɛyɛ a wotumi hwehwɛ no koraa a MTC 3.1 / 3.2 ne nea ɛto so abiɛsa-ayɛ nhwehwɛmu
Wɔayɛ no ama ahoɔden, ahwease a ɛko tia ne sour-service durability
OCTG Casing Nneɛma a Wɔyɛ|API 5CT High-Ahoɔden Oilfield Casing
API 5CT Standard ho nnianim asɛm
Casing ne tubing wɔ oil & gas muadwuma yiye sɛ OCTG nhyehyɛe biako. Nocasing a wɔde hyɛ munhama ma tokuru no gyina pintinn, ɛtew nneɛma a wɔayɛ no fi afoforo ho na ɛbɔ nsu a ɛwɔ soro ne asase ase ho ban, bere atubing a wɔde yɛ adwumama ɔkwan a wotumi sesa a ɛsen fa ngo, gas anaa nsu a wɔde twitwiw mu. Bere a yɛyɛ nhyehyɛe aAPI 5CT a wɔde hyɛ mu ne tubingnhyehyɛe no, yɛhwɛ adesoa kwan no nyinaa – ɛpae, ɛhwe ase, nhyɛso ne annular nhyɛso – enti casing nipadua no, .
Octal Pipe yɛ adwuma ne nkutooAPI 5CT–licensed mills a wɔakyerɛw wɔn din wɔ aban API Composite List no so, a ɛhyɛ bɔ sɛ wɔbɛyɛ nneɛma a wotumi hwehwɛ mu, dade a wɔagye atom, ne adansedi a edi mũ a ɛne no hyiaAPI 5CT (Nea Ɛto so 11) .neAPI Q1 / ISO 9001:2015nhyehyɛe ahorow a wɔde hwɛ nneɛma pa so.
Steel Grades ne Mfiridwuma mu Nneɛma
Wɔayɛ API 5CT grades sɛ ɛbɛdi abura tebea ahodoɔ pii ho dwuma - firi ngo abura a ɛnyɛ den, a nhyɛsoɔ sua-kɔsi HPHT gas afuo a emu dɔ paa.
Grade biara wɔ anohyeto pɔtee bi ma aba ahoɔden, ahoɔden a ɛtwetwe, ne tenten, na ɛhwɛ hu sɛ mfiri no gyina pintinn wɔ nhyɛso, nhyɛso, ne emu nhyɛso ase.
| Aba | Dwumadi a Wɔtaa De Di Dwuma | Ahoɔden a Ɛma Aba (MPa) . | Ahoɔden a Ɛma Ntwetwe (MPa) . | Min. Ntrɛwmu (%) . |
|---|---|---|---|---|
| J55 | Abura a emu nnɔ, a nhyɛsoɔ sua- | 379–552 | 517 simma | 19–21 |
| K55 | Ɔsom a emu dɔ a ɛkɔ fam, ɛyɛ dɛ | 379–552 | 655 simma | 19–21 |
| N80 Ɔkwan a wɔfa so yɛ 1 | Medium-bun, ɔsom a ɛyɛ gyinapɛn | 552–758 | 689 simma | 18–20 |
| N80 Q | Q&T variant a ɛyɛ pɛ a ɛyɛ den | 552–758 | 689 simma | 18–20 |
| L80 (13Cr / 9Cr) na ɛwɔ hɔ. | CO2 / H2S nneɛma a atwa yɛn ho ahyia a ɛyɛ akisikuru | 552–655 | 655 simma | 18–20 |
| C90 | Abura a emu dɔ, ɔsom a ɛyɛ akisikuru | 621–758 | 689 simma | 15–18 |
| T95 | HPHT / akisikuru a emu yɛ den | 655–758 | 724 simma | 15–18 |
| P110 | Nhyɛso a emu dɔ, a ɛkorɔn-nhyɛso a wɔde di dwuma | 758–965 | 862 simma | 15–18 |
| Q125 | Ultra-HPHT abura a emu dɔ | Ɛkɛsene anaasɛ ɛne 862 yɛ pɛ. | Ɛboro 931 anaasɛ ɛne no yɛ pɛ | 12–15 |
Ntrɛwmu kyerɛ nhyɛso a ɛba fam koraa a ɛkɔ akyiri ansa na abubu wɔ API 5CT Nkyekyɛm F biara mu.
Octal Pipe boa adwumayɛfoɔ ne EPCfoɔ wɔgrade a wɔpaw, collapse ne burst resistance nhwehwɛmu, .neH2S / CO2 a ɛne ne ho hyia ho nhwehwɛmusɛnea ɛbɛyɛ a wɔbɛhwɛ ahu sɛ ahama biara ne adwuma no asase ho nimdeɛ ne nhyehyɛe envelope no hyia.


API 5CT Casing ne Tubing: Afuw mu Ɔhaw ahorow a Adetɔfo Pɛ sɛ Wosiw Ano
API 5CT casing ne tubing paipu ahorowwɔntɔ sɛnea ɛbɛyɛ a "wɔadu gyinapɛn bi ho." Wɔtɔɔ wɔn sɛnea ɛbɛyɛ a abura bi agyina pintinn na ɛsen-a enni nsuo a ɛretu, ɛnyɛ plugging, annular pressure surprises, anaa gyeɛ ho akyinnyegyeɛsa ɛdan bere a wɔde yɛ adwuma na wɔsan yɛ adwuma bio.
Ɛka a wɔbɔ no mu dodow no ara mfi huammɔdi kɛse biako mu. Ɛfiri oprehyɛn tiyɛ a wɔtumi hyɛ ho nkɔm a ɛfiri aseɛ sɛ scope gaps nketewa wɔ PO no so.
1.Casing nokwaredi ne annular nhyɛso build-up
Ebia wɔn a wɔyɛ adwuma no behuannulus nhyɛso a ɛnteɛ, nhyɛso a ɛkɔ so daa, anaasɛ nhyɛso a ɛnkari pɛ wɔ annuli ntam. Mpɛn pii no, nneɛma a ɛkanyan nointegrity nsɛm, isolation a enye, corrosion, anaa threads/couplings a asɛe-na ɔhaw no mu yɛ den efisɛ ɛbɛyɛ akwanside/abura mudi mudi ho nkɔmmɔbɔ, ɛnyɛ adeyɛ ho haw kɛkɛ.
2.Plugging ne anohyeto (wax / nsenia / anhwea / nneɛma a asɛe) .
Wɔ artificial lift anaa production mu no, anohyeto ahorow da adi sɛsɛnea ɛkɔ fam, nhyɛso a entumi nnyina, pɔmpɛ mu adesoa a ɛkɔ soro, anaasɛ wɔtaa siesie. Ntini a ɛde ba no ntaa nyɛ "pipe quality" nkutoo-ɛyɛ nea wɔaka abomflow regime + deposits + emu roughness + debris control ne ahotew.
3.Corrosion-driven huammɔdi (CO2 / H2S, chloride pii nsu a wɔatwa) .
Corrosion nsɛm nhwɛ dramatic wɔ gye. Wɔda wɔn ho adi akyiri yi sɛpitting, leakage, ne run nkwa nna a ɛyɛ tiaa, titiriw wɔ sour anaa wet CO2 service mu bere a wɔankyerɛw metallurgy, hardness control, ne inspection scope pefee wɔ nhyehyɛe no mu no.
4.Yɛ-up delays na cross-threading wɔ rig no so
Di huammɔdi a ne bo yɛ den sen biara ne nea ɛba bere a adwumayɛfo no retwɛn no. Sɛ ahama no rentumi nyɛ adwuma yiye a, wohwere bere ntɛmntɛm. Nneɛma a ɛtaa de ba:nkitahodi ahorow a wɔadi afra, nhama a asɛe, nhama gauging adanse a ɛyera, anaasɛ coupling scope a emu nna hɔ.
Octal Pipe Controls a Siw Field Ɔhaw ahorow ano
| Field problem a wopɛ sɛ wokwati | Nea Octal Pipe di so ansa na wɔde amena | Nea yɛde ma sɛ adanse (wɔ wo nkrataa pack mu) . |
|---|---|---|
| Tubing leaks akyi start-up anaa workovers | Yɛtoto munkitahodi + nkitahodi scopekɔ wo PO (NUE/EUE anaa gas-tight premium), na fa nkitahodi ahoboa di dwuma sɛ apon a wɔayi no adi (no "default" threads). | Nkitahodi a wɔde hu + traceability, nethread gauging adanse bere a wɔakyerɛ no; torque-dannan ababere a wɔakyerɛ noama nsɔano no ho adansedi. |
| Rig-fã yɛ-up delays / cross-threading | Yɛhwɛ thread tebea so denam handling so:nhama a wɔde bɔ ho ban, nea wɔde kyekyere nneɛma a ɛyɛ den, ne agyiraehyɛde a emu da hɔsɛnea ɛbɛyɛ a wobesiw mixed-string ne transport ɔsɛe ano. | Packing list a ɛkyerɛahobammɔfoɔ scope + bundle mapping, agyiraehyɛde list / tally mmoa a wɔakyekyere wɔ lot/bundle ID ahorow ho. |
| Annular nhyɛso ahodwiriwde / nokwaredi ho akyinnyegye | Yɛde inspection scope no hyia woPO/ITP na ɛyɛ adwumaenti wɔakyerɛkyerɛ integrity-fam nokwaredi mu (ɛnyɛ "sɔhwɛ a ɛwɔ hɔ"). | Hydrotest kyerɛwtohɔ bere a wɔakyerɛ no, drift kyerɛwtohɔ bere a wɔakyerɛ, ne NDT amanneɛbɔ (UT/ECT/MPI) .bere a wɔakyerɛ nkutoone ɔkwan + scope + nea efi mu ba. |
| Plugging / anohyeto ahorow bere a wɔrebɔ pɔmpɛ (wax/scale/sand/debris) . | Yɛsa yareɛemu clearance controlna wogye pefeeyɛ sɛ delivery scope no fã-enti ahama no tu mmirika a anohyeto ahorow a wobetumi akwati biara nni mu. | Adanse a ɛkɔ akyiribere a wɔakyerɛ no, ne dimensional records ne tally/marking a ɛtew wrong-string running ne rework so. |
| Corrosion-driven huammɔdi ahorow wɔ CO2/H2S som mu | Yɛsi ɔsom nsɛm so dua ntɛm (CO2/H2S / nsuo a wɔatwa / ɔhyew) na scope ahyɛdeɛ no sɛdeɛ ɛbɛyɛ a nneɛma a wɔpaw ne nhwehwɛmu no nnyaw mma nsusuiɛ. | MTC/CMTR a wotumi hwehwɛ mu; sour-service related requirements ne nhwehwɛmu kyerɛwtohɔ foforo biarabere a wɔakyerɛ nowɔ PO/ITP mu. |

Nkitahodi Ahorow ne Mfiridwuma mu Nneɛma a Wɔpaw
Casing Nkitahodi ahorow
| Korɔ | Nkyerɛmu | Sɛnea Wɔtaa De Di Dwuma |
|---|---|---|
| STC– Nhama a Ɛyɛ Kurukuruwa Tiatiaa a Wɔde Kabom | Standard kurukuruwa asaawa, mmerɛw make-up | Abura a emu nnɔ / nhyɛso a ɛkɔ fam |
| LTC na ɛwɔ hɔ– Asaawa a Ɛyɛ Kurukuruwa Tenten a Wɔde Kabom | Thread engagement tenten, adesoa kyekyɛ a eye | Abura a ɛwɔ mfinimfini kosi nea emu dɔ |
| BTC na ɛwɔ hɔ– Buttress Nhama a Wɔde Ka Ho | Trapezoidal kwan a ɛwɔ tensile efficiency a ɛkorɔn | Abura a emu dɔ / a ɛkorɔn-nhyɛso wom |
| Premium Gas-Tight a ɛyɛ den | Dade-kɔ-dade nsɔano, torque mmati nhyehyɛe | HPHT ne po so adwumayɛ |
Tubing Nkitahodi ahorow
| Korɔ | Nkyerɛmu | Sɛnea Wɔtaa De Di Dwuma |
|---|---|---|
| EUE– Abɔnten so Ahaw Awiei | Thickened awiei ne coupling nkitahodi ma high twetwe adesoa | Standard production tubing a wɔde yɛ nneɛma |
| NUE– Ɛnyɛ-Upset Awiei | Straight end, emu duru ne ɛka a ɛba fam | Ɔsom nhyehyɛe ahorow a ɛkɔ fam |
| Integral / Premium Tube a ɛyɛ fɛ | Mfiri a wɔde yɛ integral joint anaa dade-seal type | Gas / condensate / akisikuru som |
Nkitahodi a wɔde nhama ayɛ nyinaa neAPI 5B a wɔde susuw nneɛma hogyinapɛn ahorow na wɔde torque-dannan sɔhwɛ, seal-integrity nhwehwɛmu, ne mfiri adesoa simulation di ho adanse.
Nea Wode Octal Pipe Nya
Octal Pipe yɛ adwuma sɛ China-based OCTG Casing ne Tube manufacturer a ɛwɔ mpɔtam hɔ mfaso a mfaso wɔ so-tight coordination across pipe, threading ne couplings, ne factory-side digital control of marking, bundle lists ne traceability-enti casing package no du run-ayɛ krado na ɛkwati sɛ wɔbɛkyɛ a wobetumi asiw ano wɔ agye ne wɔ rig no so.
Bere a woretɔ ade noOCTG paipu, "mfaso" no nyɛ asɛmti-ɛyɛ sɛ ebia nea ɔde nneɛma ma no dennwinnade ne nhyehyɛe a wɔde di dwumabere nyinaa yɛ nhama, nhama, ne paipu nipadua a ɛtwam gye tom bere a edi kan. Octal Pipe, wobɛnya supply program a wɔasi atwa controllable steps ne auditable outputs ho ahyia:
- Controlled threading a wɔasi ama repeatable make-up:wɔahyehyɛ production no atwa threading nneyɛe a ɛyɛ den ne inspection gates ho ahyia, enti nkitahodi a wobɛkra no yɛ nkitahodi a wo nsa ka-a ɛboathread gauging adanse bere a wɔakyerɛ none nkitahodi ho nkyerɛkyerɛmu a emu da hɔ (STC/LTC/BTC; EUE/NUE; premium options).
- Couplings a wɔfa no sɛ ade titiriw, na ɛnyɛ ade a wɔde boa:wɔhwɛ coupling processing so ma ɛne grade ne service a wɔahyɛ no hyia, a nhwehwɛmu checkpoints a ɛtew afuw mu anwiinwii-connection-a ɛfa pow a ɛtaa ba ne nea ɛhyɛ ntɛm so.
- Nhwehwɛmu tumi a ɛne adwuma no mu nokwasɛm hyia:bere a wo PO/ITP frɛ no, wɔyɛ nokwaredi no a wɔakyerɛkyerɛ mu kɛse (ɔkwan + akataso + gye a wogye tom nnyinaso) na wɔde ma sɛ amanneɛbɔ-enti "NDT / hydrotest / drift" nyɛ aguadi nsɛmfua na mmom nneɛma a wotumi susuw.
- Traceability a wɔasisi wɔ adwumayɛ nhyehyɛe no mu:wɔde ɔhyew/lot map ne agyiraehyɛde kɔ packing mu, na wɔayɛ package a wɔayi no adi (MTC 3.1/3.2, third-party inspection bere a ɛho hia) ma QA/TPI nhwehwɛmu, ɛnyɛ post-shipment document chasing.

Ɔne Casing ne Tubing Running Services Nnwumakuw a wɔyɛ adwuma
Delays dodow no ara si wɔ interface necasing ne tubing mmirikatu adwumayɛbea ahorow-ɛnyɛ sɛ pipe grade no yɛ mfomsoɔ nti, na mmom ɛnam sɛ string no ntumi nnyi na ɛnkɔ yie nti: tally nhyia bundles, threads du hɔ fĩ anaasɛ asɛe wɔ re-handling akyi, anaasɛ drift/make{2}}up expectations no antoto da. Sɛ yɛhwɛ adetɔ ho a, eyeOCTG paipu adwumayɛbea ahorowgyina sɛ ebia wɔahyehyɛ supply package no ama rig-floor reality, ɛnyɛ mill nkrataa nko ara.
Octal Pipe na ɛhwɛ saa nsa a wɔde ma yi so sɛ nea wɔde bɛkɔ no fã: wɔboaboa nneɛma a wɔde bɛkɔ no ano na wɔkyerɛ sɛnea ɛne mmirikatu nnidiso nnidiso hyia, wɔbɔ nhama ho ban ma akwantu ne gyaade mu tu, na wɔasiesie nkrataa a wɔde ahyɛ mu no sɛnea ɛbɛyɛ a nea wogye no betumi aprapra lot no mu a wɔrenni adanse a ayera akyi. Botae no yɛ mmerɛw-sɛ mmirikatu adwumayɛfo no fi ase fa nkwaa a, wonnyae sɛ wɔbɛsan ahwɛ ID ahorow, asan{3}}hotew nhama, anaasɛ wɔregye akyinnye wɔ gye a wogye tom ho.
Nneɛma abien a ɛsɛ sɛ woto mu wɔ PO no so (sɛnea ɛbɛyɛ a adwumayɛfo a wɔretu mmirika no renhwere rig bere):
- Tally + gye nteɛso:joint ID format, bundle grouping, packing/marking list alignment, ne traceability mapping (bere a wɔakyerɛ wɔ PO/ITP mu).
- Mmirikatu-ayɛ krado agye atom:drift nnyinaso (API vs special drift), nkitahodi type, ne thread gauging / torque-dan adanse biara a ɛho hia (bere a wɔakyerɛ wɔ PO/ITP mu).
OCTG Pipe Ti Nkitahodi
- Casing ne tubing ti a ɛne ne ho hyia: Si hanger ne wellhead interface ahwehwɛde ahorow so dua ntɛm sɛnea ɛbɛyɛ a drift/ID ne nkitahodi a wɔpaw no renhyia wɔ instɔlehyɛn mu.
- Nkitahodi ne nsɔano: Fa OCTG paipu nkitahodi su no hyia abura no ti na yɛ-up adesua na woakwati nsuo a ɛbɛtɔ wɔ nhyɛsoɔ-up mu.
- Field joint discipline: Fa ahobanbɔ ne nhama ho tew denam akwantuo so sɛdeɛ ɛbɛyɛ a abura ti make-up no renko ntia efĩ.
FAQ

Nsonsonoe bɛn na ɛwɔ casing ne tubing a ɛwɔ abura mu ntam?
Adɛn nti na "to-standard" casing/tubing nhama da so ara tu anaasɛ di nkogu ntɛm wɔ afuw no mu?
Nwoma bɛn na ɛsɛ sɛ ɛba ne casing ne tubing ma incoming inspection?
Adansedi nkrataa

CE Adansedi Krataa

ISO 9001 Adansedi krataa

API Q1 Adansedi krataa

ABS Adansedi krataa

AP-5L Adansedi krataa

API-5CT Adansedi krataa
| Adeɛ | Parameter a wɔde kyerɛ |
|---|---|
| Susudua | API 5CT (Nea Ɛto so 11) . |
| Adwadeɛ | Casing / Tubing + Couplings (OCTG a wɔde ahyɛ mu) . |
| Abasobɔde ahorow | J55, K55, N80 (N80Q), L80 (13Cr/9Cr), C90, T95, P110, Q125 |
| Nkitahodi ahorow | BTC, LTC, STC, EUE, NUE (wɔpɛ sɛ wɔpaw nea wɔpɛ) . |
| Key paw nnyinaso | Burst / Collapse / Tension / Nhyɛso a ɛyɛ annular |
| QA scope (wɔpɛ sɛ wopaw) . | NDT, hydrotest, drift, asaawa a wɔde susuw nneɛma ho (sɛnea ɛho hia) . |
| Nwoma a wɔde kyerɛw | EN 10204 3.1/3.2 MTC + traceability pack (sɛnea ɛho hia) . |
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