Chitoliro cha Chitsulo cha API 5L X60 (L415) LSAW: Mphamvu Zopangira & Zofotokozera Zamalonda

Chifukwa chiyani Womic Steel ya X60 LSAW?

●Njira zitatu zowonjezera (JCOE, UOE, mbale yozungulira) zophimba mainchesi 219–1,600mm

●Njira ya UOE imapereka ±0.2% OD roundness - yofunika kwambiri pakuwotcherera kwa mipanda ya gasi yokha

●Kukhoma kolimba mpaka 70mm (msoko umodzi) kapena 80mm (msoko wawiri)

●Mphamvu ya ng'anjo ya PWHT: 12m kutalika × 3m m'mimba mwake

●Kuyesa kutentha kochepa mpaka -46°C ndi -60°C (arctic grade X60)

●Utumiki wa sour wovomerezeka ndi mayeso a HIC/SSC (NACE TM0284, TM0177)

●Kuyang'anira kwa API 5L Monogram + CE + kwa anthu ena (SGS, BV, TÜV, DNV, ABS, LR)

●Kubwezera mwachangu: Masiku 35-50 a ntchito yachizolowezi ya X60 PSL1, masiku 50-70 a ntchito ya PSL2 sour

●Kutalika mpaka 24m kumachepetsa ma welds a munda ndi 30-40%

●Mapaipi a X60 opitilira 1,500 km aperekedwa padziko lonse lapansi popanda vuto lililonse pa ntchito

Mafunso Ofunsidwa Kawirikawiri:

Q: N’chifukwa chiyani mungasankhe X60 kuposa X52 pa payipi ya gasi?
A: X60 imapereka mphamvu yochulukitsa 15% (415 MPa vs 360 MPa), zomwe zimapangitsa kuti makoma opapatiza (nthawi zambiri amachepetsa 10-15%) akhale ndi mphamvu yofanana. Izi zimachepetsa kulemera kwa zinthu ndi mtengo wake, makamaka mapaipi akutali. Komabe, X60 imafuna njira zowotcherera zolimba ndipo imakhudzidwa kwambiri ndi kusweka kwa haidrojeni. Pa kupsinjika pansi pa 10 MPa, X52 nthawi zambiri imakhala yotsika mtengo. Pa kupsinjika pamwamba pa 12 MPa, X60 kapena X65 imalimbikitsidwa.

Q: Kodi kusiyana pakati pa X60 PSL1 ndi PSL2 ndi kotani?
A: PSL2 ili ndi malire okhwima a mankhwala (makamaka otsika C, P, S), kuyesa kofunikira kwa Charpy (27J @ 0°C kapena kutsika), kuuma kwakukulu kwa 90 HRB, ndipo imafuna 100% UT ya msoko wa weld (PSL1 imangofunika malo a UT). Pa mizere ya trunk ya gasi yomwe imagwira ntchito m'malo okhala anthu ambiri kapena kutentha kochepa, PSL2 nthawi zambiri imatchulidwa.

Q: Kodi mungapereke satifiketi ya X60 yautumiki wonyowa?
A: Inde. Timapereka X60 PSL2 ndi mayeso a HIC (NACE TM0284) ndi mayeso a SSC (NACE TM0177). Kuvomerezeka kwachizolowezi: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% ya HIC. PWHT imagwiritsidwa ntchito pa ntchito yonse ya sour X60 mosasamala kanthu za makulidwe a khoma kuti zitsimikizire kuuma ≤ 85 HRB. Tapereka ntchito ya sour X60 ku mapulojekiti a Middle East ndi Southeast Asia.

Q: Ndi mayeso ati otsika kutentha omwe mungachite pa mapaipi a X60 arctic?
A: Tikhoza kuyesa mpaka -60°C. Mapaipi a gasi wamba a arctic amafuna mphamvu ya Charpy ya 27J osachepera pa -46°C. Womic nthawi zambiri imafika pa 80-120J pa -46°C. Kuti tiwongolere kufalikira kwa mabala, timachitanso DWTT pa -20°C ndi malo ocheperako 85%. Chonde tchulani kutentha ndi mphamvu zomwe mukufuna poyesa.

Q: Ndi njira iti yomwe ili yabwino kwambiri pa mapaipi a X60 omwe ali m'mphepete mwa nyanja - JCOE kapena UOE?
A: UOE ndi yabwino kwambiri pa malo otsetsereka chifukwa imapanga kuzungulika bwino (± 0.2% vs ± 0.5% ya JCOE) komanso kuchepetsa kupsinjika kotsalira. Izi ndizofunikira kwambiri polimbana ndi kupsinjika kwa hydrostatic (kugwa) komanso kuti pakhale kuwotcherera kodalirika kwa field girth paziwiya zogona. UOE imaperekanso mphamvu yabwino yotopa kwa ma dynamic risers. Pa madzi osaya (< 100m) omwe ali pafupi ndi gombe, JCOE ndi yovomerezeka.

Q: Kodi nthawi yogwiritsira ntchito chitoliro cha X60 LSAW ndi yotani?
A: Nthawi yokhazikika yogulira X60 PSL1: Masiku 35-50. Kwa X60 PSL2 yokhala ndi mayeso a sour service ndi PWHT: Masiku 50-70. Maoda ofulumira (masiku 25-35) ndizotheka pazakudya zochepa (< matani 1,000) ngati mbale ilipo. Kwa maoda akuluakulu kwambiri (> matani 20,000), nthawi yogulira ikhoza kupitirira masiku 90.

Q: Kodi mumayang'anira mapaipi a X60 LSAW kwa anthu ena?
A: Inde. Timagwira ntchito ndi SGS, BV, TÜV, DNV, ABS, ndi LR. Kuwunika kumatha kuchitika ku fakitale yathu panthawi yopanga, ndipo woimira kasitomala akuwona. Timapereka satifiketi ya EN 10204 Type 3.2 ngati tipempha.

Chitsimikizo cha Pulojekiti - Mzere wa Gasi Wachilengedwe Wodutsa Malire a Kum'mwera cha Kum'mawa kwa Asia

Dziko:Chigawo cha malire a Myanmar - Thailand (payipi ya gasi kuchokera ku Gulf of Martaban kupita ku Thailand)
Muyezo ndi Giredi:API 5L X60 PSL2 (utumiki wochepa, wokhala ndi mayeso a HIC ndi SSC)
Miyeso ndi Kuchuluka:

●OD 813mm (32″) × Kulemera 19.0mm – 36,000 mamita (pafupifupi matani 12,600) yopangidwa ndi njira ya UOE

●OD 813mm (32″) × Kulemera 22.0mm – 8,000 mamita (pafupifupi matani 3,200) opangidwa ndi njira ya UOE (khoma lolimba la malo odutsa msewu/njanji)

●OD 610mm (24″) × WIT 15.9mm – 12,000 metres (pafupifupi matani 2,400) yopangidwa ndi njira ya JCOE (mzere wa nthambi kupita ku fakitale yamagetsi)
Zonse:Mamita 56,000 (56 km), pafupifupi matani 18,200

Mafotokozedwe:Chophimba chakunja cha 3LPE (kukhuthala konse kwa 3.0mm) pa ISO 21809, malekezero opindika 30° / 1.6mm ndi mizu yoteteza mkati, hydrotest pa 15.0 MPa (kupanikizika kwa kapangidwe 11.5 MPa). Kufunika kwa Charpy impact pa 0°C ndi -20°C (mphindi 27J, kufika 90-140J). HIC pa NACE TM0284 Yankho A, 96h - kuvomereza: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. SSC pa NACE TM0177 Njira A, 720h - palibe kusweka komwe kuloledwa. PWHT idagwiritsidwa ntchito pamapaipi onse okhala ndi WT ≥ 19.0mm. 100% automated UT yokhala ndi TOFD ya weld seam. Kuyesa kwa X-ray (RT) kwa zitsanzo zoyenerera weld.

Ntchito:Mzere wa gasi wachilengedwe wodutsa malire umanyamula gasi kuchokera kumadera akutali ku Gulf of Martakan (Myanmar) kupita kumalo olandirira gasi ku gombe ku Thailand, kenako kupita ku malo opangira magetsi opangidwa ndi gasi. Gawo la makilomita 56 la m'mphepete mwa nyanja limadutsa m'nkhalango zamapiri ndi kusintha kwakukulu (mpaka mamita 400), kuphatikiza malo asanu ndi limodzi odutsa misewu ndi malo atatu odutsa njanji.

Mavuto ndi Mayankho a Ukadaulo:

●Kutsatira malamulo a ntchito ya sour pa gasi wokhala ndi H₂S yocheperako– Mpweya wachilengedwe uli ndi 5-10 ppm H₂S pa kutentha kwa 55°C. Womic adachita mayeso a HIC ndi SSC pa malo 12 opangira. Onse adapambana ndi CLR 0%, CTR 0%, CSR 0% ya HIC. Kuyesa kwa SSC (NACE TM0177, 720h) sikunawonetse kusweka kwa pamwamba. Tinakwaniritsa izi mwa kusunga CEV ≤ 0.38%, kugwiritsa ntchito PWHT pamapaipi onse a 19.0mm ndi 22.0mm WT (ngakhale API 5L sikufuna PWHT pansi pa 25.4mm), ndikulamulira kulowetsa kutentha kwa welding kufika ≤ 2.8 kJ/mm. Woyang'anira kasitomala (BV) adawona mayeso onse ndipo adatsimikizira zotsatira zake.

●Malo amapiri okhala ndi kupindika kwakukulu– Njira ya payipi imaphatikizapo malo otsetsereka mpaka madigiri 25. Kupindika kwa minda ya mapaipi a X60 kumakhala kovuta kuposa ma grade otsika chifukwa cha mphamvu yayikulu. Womic idapereka mapaipi okhala ndi malo olumikizirana amodzi otalikirapo (18m m'malo mwa 12m wamba) kuti achepetse kuchuluka kwa malo opindika ndi 33%. Tinaperekanso mawonekedwe apadera a bevel (compound bevel) omwe adalola kuti ±3° isagwirizane bwino panthawi yolumikiza minda popanda kuwononga ubwino wa weld. Kuzungulira kwa oval kunasungidwa ku ≤ 0.3% (njira ya UOE) kuti zitsimikizire kuti malo otsetsereka ali bwino.

●Umphumphu wa 3LPE wokutira m'nkhalango– Chinyezi chochuluka (80-95% chaka chonse) ndi dothi lokwawa la laterite zinali zoopsa zophimba. Womic anapaka 3LPE coverage ndi gawo lina la 0.3mm losasangalatsa. Tinachita 100% kuzindikira nthawi yopuma pa 7kV (standard 5kV) ndipo tinayesa mphamvu ya peel pa 25°C ndi 70°C (230 N/cm pa 25°C, 160 N/cm pa 70°C). Coating inadutsa mayeso a cathodic disbondment (≤ 8mm radius pa 65°C, masiku 28).

●Zinthu zodutsa malire okhala ndi zovuta za misonkho– Mapaipi anatumizidwa kuchokera ku Shanghai kupita ku doko la Yangon (Myanmar), kenako ananyamulidwa ndi galimoto yaikulu makilomita 280 kupita ku payipi yomwe inali pafupi ndi malire a Thailand. Njirayo imadutsa m'malo awiri oyendera katundu wa msonkho. Womic inakonza zikalata za dzikolo (Satifiketi Yoyambira kuchokera ku AK, ASEAN-lonse). Tinakonzanso ma bond osakhalitsa olowera katundu kuti tipewe kuchedwa kulipira msonkho. Matani onse 18,200 analipira msonkho wa msonkho mkati mwa masiku 5.

●Kuwongolera kutentha kolowera kolimba kwa X60– X60's HAZ imakhudzidwa ndi kutentha kwambiri komwe kumayambitsa kufewa ndikuchepetsa kulimba. Womic idagwiritsa ntchito makina a SAW okhala ndi waya ziwiri omwe amawunikira kutentha kulikonse komwe kumayambitsa kufewa. Kutentha kwapakati komwe kumayambitsa kufewa kwamkati: 2.2 kJ/mm, kufewa kwakunja: 2.5 kJ/mm (kotsika kwambiri kuposa malire a 3.5 kJ/mm). Kutentha kwapakati pa kufewa kunasungidwa pansi pa 200°C. Kulimba kwa kufewa kwa mtanda pambuyo pa PWHT: chitsulo choyambira 78-82 HRB, kufewa 82-86 HRB, HAZ 80-84 HRB - zonse mkati mwa malire a 90 HRB.

● Zotsatira:Paipi ya gasi idayamba kugwira ntchito mu kotala lachitatu la 2024. Mapaipi onse a X60 PSL2 okwana makilomita 56 adayesedwa ndi BV Myanmar. Kasitomalayo adanena kuti palibe vuto lililonse pakuwotcherera pa girth (zowotcherera zoposa 4,600). Paipiyo yakhala ikugwira ntchito pa 10.5-11.0 MPa kwa miyezi 12 popanda kutayikira kapena kulephera kwa coating. Womic Steel idalandira mphotho ya "Supplier of the Year" kuchokera kwa kontrakitala wa Thai EPC chifukwa chopereka nthawi yake (matani onse 18,200 adaperekedwa mkati mwa masiku 68) komanso magwiridwe antchito abwino.

Lumikizanani nafe:
Webusaiti: www.womicsteel.com
Imelo: sales@womicsteel.com

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

Womic Steel – Mnzanu wodalirika wa mapaipi a API 5L X60 LSAW a mizere ya gasi wachilengedwe yothamanga kwambiri, mapaipi a m'mphepete mwa nyanja, ntchito yonyowa, ndi ntchito za arctic padziko lonse lapansi.