API 5L X65 LSAW Paịpụ ígwè: Ike nrụpụta na nkọwapụta ngwaahịa

Gịnị kpatara Womic Steel ji dị ka X65 LSAW?

● Usoro UOE na-enye ±0.2% OD gburugburu - dị oke mkpa maka iguzogide ọdịda mmiri miri emi

● Ọrụ siri ike nke nwere ikike HIC/SSC na PWHT nke akwadoro

● Mmetụta dị ala na okpomọkụ ruo -60°C na nnwale CTOD maka usoro mgbawa

● Nkwado API 5L Monogram + DNV maka mpụga

● Enyere ihe karịrị kilomita 1,200 nke paịpụ X65 n'ụwa niile

● Nnyocha nke ndị ọzọ site na DNV, ABS, BV, SGS, TÜV

Ajụjụ Ndị A Na-ajụkarị:

Ajụjụ: Kedu ihe dị iche n'etiti X65 na X60 maka pipelines dị n'èzí?
A: X65 na-enye ike mmepụta dị elu nke 8% (450 vs 415 MPa), na-enye mgbidi dị gịrịgịrị. Maka mmiri miri emi (≥ 1,000m), a na-ahọrọkarị X65 maka iguzogide ọdịda ya ka mma na arụmọrụ ike ọgwụgwụ. Agbanyeghị, X65 chọrọ usoro ịgbado ọkụ siri ike karị ma na-enwe mmetụta karịa na mgbawa hydrogen. Maka omimi mmiri < 500m, X60 nwere ike ịdị ọnụ ala karịa.

A: Ị nwere ike inye X65 ule CTOD maka ụgbọ mmiri ndị na-arị elu n'ụsọ oké osimiri?
A: Ee. Anyị na-eme nnwale CTOD dịka BS 7448 ma ọ bụ ASTM E1820 si dị na okpomọkụ akọwapụtara (nke na-abụkarị -20°C ma ọ bụ -46°C). Ọnụego CTOD kacha nta: 0.25mm maka ígwè ịgbado ọkụ, 0.30mm maka HAZ. Anyị enyela X65 nke CTOD nwalere ka ọ rụọ ọrụ.北海na ọrụ ndị dị n'ụsọ oké osimiri nke Ndịda Ọwụwa Anyanwụ Eshia.

Ajụjụ: Kedu oke ọkpụrụkpụ mgbidi kachasị maka ọkpọkọ X65 LSAW?
A: JCOE/UOE kacha 50.8mm, otu ihe mkpuchi efere a kpụrụ akpụ ruo 70mm, ihe mkpuchi efere a kpụrụ akpụ ruo 80mm. Maka ọkpụrụkpụ mgbidi karịrị 50.8mm, PWHT dị mkpa. Anyị nyere X65 1,016mm OD × 60mm WT n'oge na-adịbeghị anya maka ọkpọkọ CO₂ nwere nrụgide dị elu.

Q: Kedu ka ị si hụ na HAZ siri ike maka ịgbado ọkụ ubi X65?
A: Anyị na-achịkwa kemistri efere (CEV dị ala, ≤ 0.40%), ntinye okpomọkụ n'oge SAW (≤ 2.5 kJ/mm), na okpomọkụ interpass (≤ 200°C). Anyị na-enye ndị ahịa ndụmọdụ maka usoro ịgbado ọkụ (WPQ) ma nwee ike inye ihe nlele oriri ịgbado ọkụ. Mmetụta HAZ Charpy nkịtị na -20°C: 120-200J.

Q: X65 ọ dị mma maka ọrụ mmiri ara ehi (H₂S)?
A: Ee, mana ọ chọrọ PSL2 nwere obere CEV (≤ 0.40%), PWHT maka ọkpụrụkpụ mgbidi niile ≥ 20mm, ike ≤ 85 HRB, na nnwale HIC/SSC. Womic enyela ọrụ sour X65 na Middle East (30 ppm H₂S) na Canada (sour gas).

Ajụjụ: Kedu oge ndu nkịtị maka ọkpọkọ X65 LSAW?
A: Ọkọlọtọ X65 PSL1: ụbọchị 40-55. X65 PSL2 nwere ọrụ utoojoo na PWHT: ụbọchị 60-80. Iwu ngwa ngwa (ụbọchị 30-45) maka ọnụọgụgụ karịrị tọn 2,000 ma ọ bụrụ na efere dị na ngwaahịa.

Ntụaka Ọrụ - Ọkpọkọ Mbupụ Gas Mmiri Mmiri North Sea

Obodo:Norway (Oké Osimiri Ugwu, mpaghara ubi Balder)
Ọkọlọtọ na ọkwa:API 5L X65 PSL2 nwere ọrụ mmiri ara ehi na ihe achọrọ maka CTOD
Akụkụ na Ọnụọgụ:

● OD 610mm (24″) × WT 22.2mm – mita 28,000 (ihe dị ka tọn 9,200) nke usoro UOE mepụtara

● OD 610mm (24″) × WT 25.4mm – mita 6,000 (ihe dị ka tọn 2,300) nke usoro UOE mepụtara (mgbidi dị oke ibu maka ngalaba ịrị elu)

● OD 813mm (32″) × WT 30.0mm – mita 4,000 (ihe dị ka tọn 2,500) nke e ji otu akwa a kpụkọrọ akpụkọ rụọ (maka ịbịarute n'ụsọ oké osimiri)
Ngụkọta:Mita 38,000 (kilomita 38), ihe dị ka tọn 14,000

Nkọwapụta:Mkpuchi 3LPP mpụta (mkpụrụ ọkpụrụkpụ 3.5mm) maka ọrụ okpomọkụ dị elu (110°C), nsọtụ beveled 30° / 1.6mm ihu mgbọrọgwụ nwere ihe nchebe bevel ígwè anaghị agba nchara, nnwale hydrotest na 22.5 MPa (nrụgide imewe 17.0 MPa). Mmetụta Charpy dị mkpa na -20°C (min 50J, enwetara 120-200J) na na -46°C (min 27J, enwetara 80-150J). Nnwale CTOD kwa BS 7448 na -20°C - nnabata: ígwè weld ≥ 0.25mm, HAZ ≥ 0.30mm. HIC kwa NACE TM0284 (Ngwọta A, 96h) - nnabata: CLR 0%, CTR 0%, CSR 0%. SSC kwa NACE TM0177 - enweghị mgbawa. A na-etinye PWHT maka paịpụ niile n'ihi ọrụ gbara ụka. 100% UT na TOFD na UT zuru oke (ọ bụghị naanị ịkwa akwa). Nnyocha nke ndị ọzọ DNV n'oge mmepụta.

Ngwa:Paịpụ mmanụ gas sitere n'ime mmiri dị omimi site n'ọhịa Balder (omimi mmiri dị mita 800-1,200) ruo na ọdụ ụgbọ mmiri dị n'akụkụ mmiri na Norway. Paịpụ mmanụ gas dị kilomita 38 gụnyere akụkụ riser dị ike (kilomita 2, 25.4mm WT) na ụzọ dị n'akụkụ mmiri site n'ala okwute (kilomita 4, efere WT 30mm).

Ihe Ịma Aka na Ngwọta Teknụzụ:

● Mgbochi ọdịda miri emi nke mmiri miri emi– Mmiri dị omimi ruo mita 1,200 na-etinye nrụgide mpụga nke 12.5 MPa. Paịpụ UOE nke 24″ × 22.2mm dị mkpa iji zute nrụgide ọdịda ≥ 25 MPa (ihe nchekwa 2). Womic mepụtara paịpụ UOE nwere ovality ≤ 0.2% (a tụrụ na 0.15-0.18%) na nrụgide fọdụrụ ≤ 35% SMYS. Anyị mere nyocha ihe nwere njedebe (FEA) na paramita nrụpụta ma kwado ya site na nnwale nrụgide ọdịda na ihe nlele zuru oke abụọ (ruo 28.5 MPa na 29.2 MPa).

● Ọrụ gbara ụka na H₂S dị elu– Gas ahụ nwere 50 ppm H₂S na okpomọkụ ọrụ 90°C. Efere ndị a họọrọ dị obere kabọn (C ≤ 0.07%), obere manganese (Mn ≤ 1.40%), obere sulfur (S ≤ 0.002%) nwere ọgwụgwọ calcium. E ji CEV mee ihe na 0.35-0.38%. E jiri PWHT mee ihe maka paịpụ niile (na-amịkọrọ mmiri 600°C ± 10°C, na-ejide ya ruo awa 1.5). Ike mgbe PWHT gasịrị: ígwè ntọala 78-84 HRB, weld 82-86 HRB, HAZ 80-84 HRB. Nnwale HIC na SSC gafere na-enweghị mgbawa ọ bụla.

● Ike mgbawa CTOD maka riser– Ngalaba riser na-agbanwe agbanwe chọrọ ike mgbawa dị elu iji nagide ibu ebili mmiri. Womic mere nnwale CTOD na ígwè weld na HAZ na -20°C. Nsonaazụ: ígwè weld 0.35-0.55mm (achọrọ ≥ 0.25mm), HAZ 0.40-0.70mm (achọrọ ≥ 0.30mm). Anyị mekwara obere okpomọkụ Charpy na -46°C (nkezi 110J). DNV hụrụ nnwale CTOD niile.

● Mkpuchi okpomọkụ dị elu (3LPP)– Okpomọkụ ọrụ 90°C, yana oke 110°C n'oge mkpọchi. A na-ebelata 3LPE (polyethylene) na 80°C. A na-etinye mkpuchi 3LPP (polypropylene) n'ime nwanyị, nke nwere ọkpụrụkpụ 3.5mm (elu oyi akwa 2.5mm + ihe nrapado 0.5mm + FBE 0.5mm). A gafere ule mwepụ nke cathodic na 110°C (radius nke mwepụ ≤ 8mm mgbe ụbọchị 28 gachara). Ike ịkpụ na 110°C a tụrụ na 60 N/cm (opekempe 50 N/cm).

● Nnwere onwe dị oke ukwuu maka nrụnye ihe eji emegharị ihe– Ejiri usoro eji emegharị paịpụ ahụ rụọ ọrụ (paịpụ a kpụchara n'elu arịa wheel). Nke a chọrọ njikwa ovality dị oke elu (≤ 0.2%) na ịdị elu nkwado weld ≤ 0.5mm. Usoro UOE nke Womic nwetara ovality 0.15-0.18%. Anyị na-akụ okpu weld ruo ≤ 0.3mm n'ịdị elu. Paịpụ niile gafere ule "reelability" pụrụ iche: okirikiri spooling zuru oke iri na-enweghị mgbawa.

● Njem njem gaa Norway– E si Shanghai bufee paịpụ gaa Stavanger, Norway site na arịa break-bulk (ụgbọ mmiri pụrụ iche maka ibuga paịpụ). Ngafe Winter North Sea chọrọ nkwakọ ngwaahịa mgbochi condensation. Womic jiri akpa VCI (vapor corrosion inhibitor) na ihe mkpofu silica gel n'ime mkpuchi njedebe. Tọn 14,000 niile rutere na-enweghị mmebi nchara ma ọ bụ mkpuchi.

Nsonaazụ:E tinyere paịpụ mmanụ gas nke ubi Balder na nkeji atọ nke afọ 2024. Ntinye ihe eji emegharị ahụ (nke onye ọrụ nkwekọrịta kachasị elu n'ụsọ oké osimiri mere) kọrọ na ọ dịghị ihe mebiri emebi n'ahụ paịpụ ma ọ bụ njikọ njikọta n'oge a na-agba mmiri na mgbe a na-etinye ya. 38 km niile gafere ule nrụgide n'elu ala mmiri. Onye ahịa ahụ (onye ọrụ Norway bụ isi) nyere Womic Steel "Ihe nrite arụmọrụ onye na-eweta" na ya, na-ekwu maka "nhazi nha na nsonaazụ CTOD pụrụ iche." Womic abụrụla onye na-eweta ngwaahịa a kwadoro maka ọrụ abụọ ọzọ nke North Sea.

Kpọtụrụ:
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Womic Steel – Onye mmekọ gị a pụrụ ịtụkwasị obi maka ọkpọkọ API 5L X65 LSAW maka ọkpọkọ mmiri miri emi, eriri akpa gas dị elu, ọrụ sour, na ngwa arctic n'ụwa niile.