DNV-OS-F101 L450 SAWL Pipeline Subsea Pipeline Steel Pipe: Ike Mmepụta na Nkọwapụta Ngwaahịa

Gịnị kpatara Womic Steel ji arụ ọrụ maka DNV Offshore Pipe?

● Onye nrụpụta DNV GL kwadoro maka ọkpọkọ SAWL

● Usoro UOE nwere O-press 6,000t na expander nke akụkụ 72 - ovality ≤ 0.15%

● Ike nnwale CTOD n'ime ụlọ (ụlọ nyocha CNAS kwadoro)

● Ọrụ dị oke mkpa na ọrụ North Sea, Brazil, na West Africa

● Nnyocha nke ndị ọzọ site n'aka DNV, ABS, BV, ma ọ bụ onye nnọchite anya ndị ahịa

● Nrubeisi zuru oke na DNV-OS-F101 (gụnyere Mgbakwunye A, B, D dịka ọ dị mkpa)

Ajụjụ Ndị A Na-ajụkarị:

Q: Kedu ihe dị iche n'etiti DNV-OS-F101 L450 na API 5L X65 maka mpaghara mmiri?
A: E dere DNV-OS-F101 kpọmkwem maka pipelines ndị dị n'èzí. Ihe dị iche iche dị mkpa: ntachi obi siri ike nke ovality (0.2% vs 0.5%), nnwale ike mgbawa CTOD (anaghị achọ API 5L), ihe achọrọ maka mmetụta Charpy dị elu (ọtụtụ mgbe 50J vs 27J), ihe achọrọ maka iguzogide ọdịda na imewe ike ọgwụgwụ. Maka ọrụ miri emi, DNV bụ ọkọlọtọ kachasị mma.

A: Ị na-enye nnwale CTOD maka igwe ịgbado ọkụ na HAZ?
A: Ee. Anyị na-eme nnwale CTOD (Crack Tip Opening Displacement) dịka BS 7448 ma ọ bụ ASTM E1820 si dị. Anyị nwere ike ịnwale ya na -20°C, -30°C, -46°C, ma ọ bụ dịka akọwapụtara. Nsonaazụ ndị a na-ahụkarị: δ ≥ 0.35mm, HAZ δ ≥ 0.40mm. Onye nyocha DNV na-ahụ nnwale CTOD.

A: Ị nwere ike inye L450 maka ọrụ mmiri ara ehi (H₂S)?
A: Ee. Anyị na-enye L450 na mgbakwunye ọrụ sour dị ka DNV-OS-F101 Annex A si dị. Nke a chọrọ obere CEV (≤ 0.40%), mgbakwunye Mo (0.15-0.25%), PWHT, ike ≤ 85 HRB, na nnwale HIC/SSC. Anyị enyela ọrụ sour L450 nye ọrụ North Sea na Middle East dị n'ụsọ oké osimiri.

A: Kedu oke omimi mmiri kacha elu nke paịpụ gị nwere ike idi?
A: Nguzogide nke ọdịda dabere na oke D/t (dayameta/mgbidi), ovality, na ike mmepụta. Maka paịpụ L450 UOE nkịtị nwere D/t = 30 (dịka ọmụmaatụ, 610mm × 20mm) na ovality 0.2%, nrụgide ọdịda gafere 30 MPa (nke kwekọrọ na omimi mmiri 3,000m). Maka mmiri miri emi, anyị nwere ike imepụta mgbidi ndị dị arọ ma ọ bụ ovality siri ike. Biko nye omimi mmiri na nrụgide imewe gị maka nyocha ọdịda.

A: Ọ dị mkpa ka e mee nnyocha DNV maka mbupu ọ bụla?
A: DNV-OS-F101 chọrọ ka onye nrụpụta ahụ nwee sistemụ mma akwadoro, nakwa ka DNV nyochaa mmepụta ya na ebe ndị akaebe akọwapụtara (dịka ọmụmaatụ, ule hydrostatic, CTOD, nyocha nha). DNV na-enyocha ụlọ ọrụ Womic kwa afọ. Maka iwu ọ bụla, anyị na-akpọ ndị nyocha DNV ka ha hụ ule ndị achọrọ. Anyị nwekwara ike ịhazi maka nyocha ABS, BV, ma ọ bụ LR mgbe onye ahịa rịọrọ ya.

Ajụjụ: Kedu oge ndu nkịtị maka ọkpọkọ DNVcertified L450?
A: Ụbọchị 90-120, gụnyere usoro nyocha DNV. Oge ndu dabere na nnweta efere (efere TMCP maka mpụga nwere oge ndu dị ogologo, nke na-abụkarị izu 10-14). Nnwale CTOD na-agbakwụnye izu 2-3. Maka iwu ugboro ugboro nwere efere ndị ruru eru, enwere ike ibelata oge ndu ruo ụbọchị 60-75.

Ntụaka Ọrụ - Paịpụ Mbupụ Gas Mmiri Miri Mmiri nke Ọdịda Anyanwụ Afrịka (Ọwara Oké Osimiri Guinea)

Obodo:Mpaghara ókèala Naịjirịa / Mpaghara ókèala Equatorial Guinea (Ọwara Guinea)
Ọkọlọtọ na ọkwa:DNV-OS-F101 L450 SAWL (UOE) nwere mgbakwunye ọrụ gbara ụka
Akụkụ na Ọnụọgụ:

l OD 610mm (24″) × WT 20.6mm – mita 52,000 (ihe dị ka tọn 13,500) nke usoro UOE mepụtara

l OD 610mm (24″) × WT 25.4mm – mita 8,000 (ihe dị ka tọn 2,500) nke usoro UOE (ngalaba riser na ụzọ dị n'ụsọ osimiri) mepụtara.
Ngụkọta:Mita 60,000 (kilomita 60), ihe dị ka tọn 16,000

Nkọwapụta:Mkpuchi 3LPE dị n'èzí (3.2mm) nwere mkpuchi ibu simenti (60mm, njupụta 3,050 kg/m³) maka mmachi na-adịghị mma. Ngwụcha beveled 30°/1.6mm. Nnwale mmiri na 25.0 MPa (nrụgide imewe 18.0 MPa). Omimi mmiri: 800-1,400m. Charpy dị mkpa na -20°C (min 50J, ruru 120-180J). CTOD na -20°C: ígwè weld ≥ 0.25mm, HAZ ≥ 0.30mm (erute 0.40-0.65mm). DWTT na -20°C: mpaghara shear ≥ 85% (erute 90-98%). Ovality ≤ 0.2% (UOE ruru 0.08-0.15%). Ike ≤ 85 HRB (ọrụ gbara ụka). HIC kwa NACE TM0284: CLR 0%, CTR 0%, CSR 0%. SSC kwa NACE TM0177: enweghị mgbawa. 100% UT na TOFD, gbakwunyere 25% RT. Nnyocha nke ndị ọzọ site na DNV GL n'oge mmepụta.

Ngwa:Paịpụ mbupu gas miri emi na-ebuga gas sitere n'okpur mmiri (omimi mmiri 800-1,400m) gaa na ọdụ LNG dị n'akụkụ mmiri. Paịpụ 60 km ahụ gụnyere ngalaba isi mmiri miri emi (52 km, 20.6mm WT), ngalaba riser na-agbanwe agbanwe (4 km, 25.4mm WT), na ụzọ dị n'akụkụ mmiri site na mpaghara sword (4 km, 25.4mm WT nwere mkpuchi simenti). Gas ahụ nwere akara H₂S (5-10 ppm) na CO₂ (3-5%), nke chọrọ asambodo ọrụ mmiri.

Ihe Ịma Aka na Ngwọta Teknụzụ:

1. Mmiri miri emi na-eguzogide ọdịda (omimi mmiri 1,400m)– Nrụgide hydrostatic dị n'èzí na 1,400m dị ihe dị ka 14.3 MPa. Nrụgide ọdịda achọrọ yana ihe nchekwa bụ > 25 MPa. Womic chepụtara paịpụ UOE nke 24″ × 20.6mm na D/t = 29.6. Site na iji usoro UOE, anyị nwetara ovality nke 0.08-0.12% (nke dị n'okpuru oke 0.2% nke DNV). Anyị mere nyocha ihe nwere njedebe (FEA) na nnwale nrụgide mbibi zuru oke na ihe nlele abụọ. Nrụgide ọdịda ruru: 27.8 MPa na 28.5 MPa - ha abụọ dị n'elu achọrọ.

2. Ike mgbawa CTOD maka riser na-agbanwe agbanwe– Ngalaba riser ahụ na-enweta ike ọgwụgwụ n'ihi mmegharị arịa na ebili mmiri. DNV chọrọ nnwale CTOD na -20°C. Womic mere CTOD na ígwè weld na HAZ maka paịpụ WT 25.4mm. Nsonaazụ: ígwè weld δ = 0.42-0.55mm, HAZ δ = 0.48-0.65mm. Anyị nyekwara usoro ike ọgwụgwụ SN maka weld girth iji nyere aka nyochaa ndụ ike ọgwụgwụ nke onye ahịa.

3. Ọrụ dị nro na H₂S– Ọ bụ ezie na ntinye H₂S dị ala (5-10 ppm), ọrụ ahụ chọrọ asambodo ọrụ gbara ụka zuru oke n'ihi oke nrụgide (18 MPa) na ihe egwu nke ire ere mpaghara. Womic jiri obere efere sọlfọ (S ≤ 0.0010%), CEV ≤ 0.38%, mgbakwunye Mo 0.20%, na PWHT na 580°C ruo awa 1.5. Ike mgbe PWHT gasịrị: ígwè ntọala 78-82 HRB, weld 80-85 HRB. Nnwale HIC na SSC gafere na-enweghị mgbawa ọ bụla.

4. Mkpuchi ibu simenti na ndakọrịta 3LPE– Ngalaba dị n'akụkụ osimiri chọrọ mkpuchi ibu simenti (60mm, nke e ji ígwè mesh mee ka ọ sie ike) maka iguzosi ike n'ala. E tinyere mkpuchi simenti n'elu 3LPE na ihe njikọ. Womic na ogige mkpuchi pụrụ iche na Angola jikọtara ya. Anyị nyere kupọnu ule maka nrapado na nnwale mmetụta. Mkpuchi simenti gafere ule nkwụsị (1m ọdịda, enweghị mgbawa).

5. Ndakọrịta nrụnye nke ihe eji agbanye ihe– E tinyere paịpụ ahụ site na iji usoro nhagharị (a na-agbagharị n'elu arịa wiil). Nke a chọrọ njikwa ovality dị oke elu (≤ 0.2%) na ịdị elu nkwado weld ≤ 0.5mm. Ovality a na-achịkwa n'ime ụmụ nwanyị ruo 0.08-0.15% na mkpuchi weld ala ruo ≤ 0.3mm elu. Anyị mere usoro ihe osise spooling zuru oke iri na paịpụ nnwale - enweghị mgbawa ma ọ bụ mmebi ovality.

6. Nnyocha na akwụkwọ DNV– Ndị nyocha DNV hụrụ nnwale hydrostatic, CTOD, HIC, SSC, na nyocha nha maka otu ọ bụla. Womic nyere akwụkwọ ndetu dị mma nke peeji 1,500 (gụnyere akụkọ nnwale niile, chaatị PWHT, ndekọ UT, na akara ngosi nke onye nyocha) n'ime izu anọ nke mbupu. A nabatara akwụkwọ ndetu ahụ n'ajụghị ajụjụ.

7. Nsonaazụ:E tinyere ọkpọkọ ahụ nke ọma na nkeji nke abụọ nke afọ 2025 site na iji ụgbọ mmiri reel-lay Deep Constructor. Ọ dịghị ntụpọ ọ bụla nke ọkpọkọ ma ọ bụ njikọ weld mere n'oge a na-agba mmiri, na-etinye ya, ma ọ bụ na-anwale mgbe a na-etinye ya. Onye njikwa ọrụ nke onye ahịa ahụ kwuru, sị: “Njikwa ovality nke Womic na nsonaazụ CTOD gafere atụmanya anyị. Paịpụ ndị ahụ na-agbakọta mgbe niile n'ọhịa na ọnụego nnabata nke 98% nke mbụ.” Womic Steel nọ ugbu a na ndepụta ndị na-ebubata ngwa ahịa akwadoro maka ọrụ mbupụ gas mmiri miri emi abụọ ọzọ na West Africa.

Kpọtụrụ:
Weebụsaịtị: www.womicsteel.com
Ozi ịntanetị: sales@womicsteel.com

Ekwentị / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel – Onye mmekọ gị a pụrụ ịtụkwasị obi maka ọkpọkọ ígwè DNV-OS-F101 L450 SAWL maka mbupụ gas miri emi, usoro mmiri dị n'okpuru mmiri, na sistemụ riser dị n'ụsọ oké osimiri n'ụwa niile.