API 5L X65 PSL2 Sour Service LSAW Steel Pipe: Kugona Kugadzira & Magadzirirwo Echigadzirwa

Tsananguro pfupi:

Womic Steel inopa pombi yesimbi yemhando yepamusoro yeAPI 5L X65 PSL2 sour service LSAW yekufambiswa kwemafuta negasi munzvimbo dzine H₂S (dzine sour) dzakasimba. X65 PSL2 ine sour service certification inopa simba rekugadzira re450 MPa (65,300 psi) pamwe chete nemiganhu yekuomarara (≤ 85 HRB typical), low carbon equivalent (CEV ≤ 0.40%), uye inovimbiswa kuramba hydrogen induced cracking (HIC) uye sulfide stress cracking (SSC). Maitiro eLSAW anosanganisira JCOE, UOE, uye rolled plate welding, pamwe ne forced post-weld heat treatment (PWHT) yepombi dzese dze sour service pasinei neukobvu hwemadziro. Kunze kwedhayamita kubva pa219mm kusvika 1,600mm (8″ – 63″), ukobvu hwemadziro kubva pa6.0mm kusvika 60mm, kureba kusvika pa24m. Chitupa chemugayo chine EN 10204 3.2, kuyedzwa kwe ultrasonic kwe 100% ne TOFD, hydro test, beveled ends, uye full sour service documentation package (HIC, SSC, hardness traverses). Yakakodzera mapaipi egasi ane simba rakawanda, kutakurwa kwemafuta negasi zvine simba rekunze kwenyika, migero yemvura ine simba rekuchenesa, uye kuisirwa gasi rine acidic.

Saizi yepombi yesimbi yeLSAW:Dhayamita yekunze: 219mm – 1,600mm (8″ – 63″), Ukobvu hwemadziro: 6.0mm – 60.0mm (JCOE/UOE yakanyanya 50.8mm, plate yakakungurutswa yakanyanya 60mm), Kureba: 6m – 18m yakajairwa, urefu hwakatarwa hunosvika 24m

Standard & Grade yeLSAW Steel Pipe:API 5L X65 PSL2 ine zvimwe zvinodiwa pabasa re sour zvichienderana neNACE MR0175/ISO 15156; HIC zvichienderana neNACE TM0284; SSC zvichienderana neNACE TM0177; inosanganawo neDNV-OS-F101 sour service supplement

Kushandiswa kweLSAW Steel Pipe:Mitsetse yekutakura gasi rechisikigo ine simba guru (kusvika 15 MPa), mapaipi emafuta egungwa ane simba guru, mitsetse yekuchenesa mvura ine simba uye amine, matsime ekuisa gasi rine acid, mitsetse yekusimudza gasi muminda ine simba, mapaipi eCO₂-H₂S anoshandiswa zvakasiyana-siyana, mapaipi ekugadzirisa sarufa

Womic Steel inopa mitengo yepamusoro uye inokwikwidzana ye API 5L X65 PSL2 sour service LSAW steel pipe, HIC tested line pipe, SSC resistant pipe, NACE compliant high strength pipe. Chitupa chemuchina EN 10204 3.2, hydro test, UT/TOFD, PWHT, beveled end, 3LPE/FBE coating iripo. Kuwanikwa kwemufekitori zvakananga kumapurojekiti emafuta negesi pasi rese.

Tumira email kwatiri Zvimiro zveChigadzirwa

Ruzivo rweChigadzirwa

Matagi eChigadzirwa

1. Womic Steel: Kugona Kugadzira & Simba reKambani reX65 Sour Service

Womic Steel Group ine mitsetse chaiyo yekugadzira mapaipi eLSAW ane simba guru. Basa reX65 sour rinoda kushanda zvakanyanya kupfuura X52 nekuda kwekusimba kwayo kwakanyanya uye zvinodiwa kuti iome. Zvinhu zvikuru zvinodzora zvinosanganisira:

● Kabhoni yakaderera yakaenzana (CEV ≤ 0.40%, yakajairika ≤ 0.38%)

● Sarufa yakaderera zvakanyanya (S ≤ 0.0015%) uye phosphorus yakaderera (P ≤ 0.015%)

● Kurapa kwecalcium yekudzivirira chimiro chemuviri (Ca/S ratio ≥ 1.5)

● Maplate ekutonhodza anokurumidza (TMCP) kuti awane chimiro che ferrite che acicular

● Kurapa kupisa mushure mekusveta (PWHT) kwemapombi ese, zvisinei nekukora kwemadziro

● Kuyedzwa kwekuoma kwe100% (weld, HAZ, base metal) - chinangwa ≤ 85 HRB

● Kuongororwa kweHIC neSSC zvichienderana neNACE standards pasina kugamuchirwa kwe crack mumapurojekiti mazhinji

Maitiro ekugadzira: JCOE, UOE (inofarirwa nekuda kwekumanikidzwa kwakaderera), ndiro yakamonerwa, zvese zvine PWHT inosungirwa muchoto chemotokari (kureba 12m, 600°C ± 10°C). Kuongororwa kwechitatu neSGS, BV, TÜV, DNV, ABS, kana LR kuti vawane chitupa chebasa rakazara.

Kugona kwegore negore kweX65 LSAW service:Matani zviuru makumi maviri nezvishanu.

Kuchinjika Kwekugadzira kweX65 Sour Service:

● JCOE: 406–1,422mm OD × 6.0–50.8mm Uzito × ≤ 18m

● UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m (inofarirwa neyakakora nekuda kwekusvuta kwakaderera)

● Ndiro yakamonerwa: 600–1,600mm OD × 25–60mm Uzito × ≤ 12m

● PWHT inoiswa papombi yega yega (nyika 600°C ± 10°C, chengeta awa imwe chete pahukobvu hwe25mm, inotonhorera zvishoma nezvishoma ≤ 200°C/awa)

2. API 5L X65 PSL2 Sour Service: Kuumbwa kwezvinhu & Hunhu hwekushanda

Pakushumira X65 sour, chemistry yakamanikana kupfuura standard PSL2 uye yakamanikanawo kupfuura X52 sour. Chinangwa ndechekuwana simba rakawanda (450 MPa yield) uku uchiramba uchidzivirira HIC neSSC zvakanaka.

Kuumbwa kweMakemikoro (Kuongororwa kweLadle, zvinangwa zvinowanzoitwa pabasa remushonga unovava):

Chinhu	PSL2 yepamusoro yakajairika	X65 Sour Service Target (Womic)
C	0.12	≤ 0.08 (kazhinji 0.05-0.07)
Mn	1.60	≤ 1.40 (kazhinji 1.20-1.35)
P	0.025	≤ 0.015
S	0.015	≤ 0.0015 (0.0010 zvakajairika)
Si	0.45	0.20-0.35
V	0.10	≤ 0.06
Nb	0.05	0.04-0.07
Ti	0.04	≤ 0.025
Mo	Hazvina kutaurwa	≤ 0.30 (kana yakavava, kazhinji 0.15-0.25)
Ni	Hazvina kutaurwa	≤ 0.50 (sarudzo yekupisa kwakaderera)
CEV	≤ 0.43	≤ 0.40 (yakajairika ≤ 0.38)
Pcm	≤ 0.25	≤ 0.22

Kurapa calcium (Ca/S ratio ≥ 1.5) kunoita kuti sulfide isanganisike. Kuwedzera molybdenum kunowedzera kuramba kuSSC pamasimba akakwirira.

Zvimiro zveMichina (Mushure mePWHT):

Pfuma	X65 PSL2 Sour Service (Womic)
Simba reKubereka (min)	450 MPa (65,300 psi)
Simba reKubereka (rakanyanya)	570 MPa (82,700 psi)
Simba reKusimba (miniti)	535 MPa (77,600 psi)
Kureba (miniti)	19%
Kuoma (kwakanyanya)-mapurojekiti akawanda	85 HRB (Womic anosvika 78-85 HRB)
Kusimba Kwekukanganisa @ -20°C (sarudzo)	≥ 27 J (kazhinji 80-150 J)
Kusimba Kwekukanganisa @ -46°C (sarudzo)	≥ 27 J (kazhinji 60-100 J)

Kuedzwa Kwebasa reX65 Sour:

● HIC paNACE TM0284 (Mhinduro A, 96h)-kugamuchirwa: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% (mapurojekiti mazhinji anoda 0%)

● SSC paNACE TM0177 (Nzira A, 720h, 90% SMYS)-hapana kutsemuka

● Kuomarara kunopfuura nepakati pe weld, HAZ, uye base metal (yakanyanya 85 HRB)

● Charpy V-Notch pa0°C kana pasi (kazhinji 27 J min)

● DWTT (yekudzora kutyoka, kana yakatsanangurwa)

3. Kutevedzera Dimensional Range & Standards

Chinhu	Tsanangudzo
Zvakajairika	API 5L PSL2 ine sour service supplement
NACE	NACE MR0175 / ISO 15156 (chinyorwa chazvino)
Maitiro Ekugadzira	JCOE, UOE, ndiro yakakungurutswa (zvese zvine PWHT)
Dhayamita Yekunze	219mm-1,600mm (8″)-63″)
Ruvara rweMadziro	6.0mm-60mm (JCOE/UOE yakanyanya 50.8mm, ndiro yakakungurutswa yakanyanya 60mm)
Hurefu hwehurefu	6m -18m yakajairika; kusvika 24m (UOE)
Kupedzisa Kupedzisa	Mugumo Wakatsetseka (BE) pa API 5L
Kupedzisa Kwepamusoro	Bare, 3LPE, 3LPP, FBE (machira anofanira kunge asina kunaka)
Kushivirira	OD: ±0.5%; Huremu: -0% / +15%; Kureba: +50mm / -0mm

4. Zviyero & Magadzirirwo Anowanikwa - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

OD (mm)	Sarudzo dzeWT (mm)	Maitiro	Huremu hunenge (kg/m2)	Kureba Kwakajairwa	Zvimiro zveBasa Rakaoma
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6-63.6	12m	PWHT, HIC yakaedzwa
273	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	52.3-101.5	12m / 18m	Kuomarara ≤ 85 HRB
324	10.0, 12.5, 14.0, 16.0, 19.0	JCOE	77.4-142.8	12m / 18m	CEV ≤ 0.40, Mo yakawedzerwa
406	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	JCOE/UOE	97.7-208.4	12m / 18m	SSC yakaedzwa
508	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	UOE	152.7-302.3	12m / 18m / 24m	Kuoma kwakazara kwekufamba
610	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	205.8-401.8	12m / 18m / 24m	HIC CLR 0% yakajairika
711	16.0, 19.0, 22.0, 25.4, 28.0, 31.8	UOE/JCOE	274.3-532.9	12m / 18m	Zvinotarisirwa zvePWHT
813	19.0, 22.0, 25.4, 30.0, 32.0, 35.0	JCOE	372.1-671.4	12m / 18m	NACE MR0175
914	22.0, 25.4, 30.0, 35.0, 38.0, 40.0	JCOE/Yakamoneredzwa	484.3-862.0	12m	S yakaderera (≤ 0.0015%)
1,016	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Yakakungurutswa	619.9-1,191.7	12m	Ca yakarapwa, Mo kusvika ku0.25%
1,220	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Yakakungurutswa	880.9-1,577.8	12m	Mvura yakadzika inovava

Mapaipi ese eX65 sour service anogamuchira PWHT pasinei nekukora kwemadziro. UOE inosarudzwa kana dhayamita dziri ≤ 1,220mm nekuda kwekudzora kwakanyanya kusimba kwesimba.

5. Mitemo Yakafanana yePaipi Yemagetsi Akasimba

Zvakajairika	Kushandiswa	Zvinodiwa paKuyedza
API 5L PSL2 + Annex H	Pombi yemuchina webasa rakanyorova	HIC, SSC, kuomarara ≤ 90 HRB
NACE MR0175 / ISO 15156	Zvinhu zveH₂S	Miganhu pakuoma, kemesitiri
NACE TM0284	Nzira yekuyedza HIC	CLR, CTR, CSR
NACE TM0177	Nzira yekuyedza yeSSC (Nzira A, B, C, D)	Hapana kutsemuka
DNV-OS-F101 (chinhu chinonaka)	Mapaipi emvura inonaka	Kuwedzera CTOD uye kuneta
Shell DEP 31.40.30.31	Basa remvura yakadzika	Kuomarara kwakanyanya (≤ 85 HRB)

Pfupiso yekushandiswa:Mitsetse yekutakura gasi rine simba guru, mapaipi emafuta ane simba mumvura yakadzika, sevhisi yeacidic iri kunze kwenyika, refinery sour water, maamine units, injection yegesi ine acid, CCS ine H₂S.

6. Maitiro Ekugadzira - LSAW yeX65 PSL2 Sour Service

Sevhisi yeX65 sour inoda ma TMCP plates epamusoro uye kudzora maitiro zvakanyanya.

Kusarudzwa kwePlate:

● Kabhoni shoma (≤ 0.08%), manganese shoma (≤ 1.40%), sarufa yakaderera kwazvo (≤ 0.0015%)

● Calcium yakarapwa (Ca/S ≥ 1.5)

● Kuwedzera kweMo (0.15-0.25%) kwekudzivirira kweSSC

● TMCP ine kutonhora kwakakurumidza-chimiro chidiki cheferrite che acicular

Matanho Ekugadzira JCOE / UOE + Sour:

●Kugaya kwemucheto -Kunyatsonaka ±0.5mm, J bevel kuti ipinde zvakanaka pakuwedera.

●Kugadzira -UOE inosarudzwa (kushushikana kushoma kwezvinenge zvasara). JCOE inogamuchirwa kana iri kumahombekombe.

●Kushongedza kweSAW -Kupisa kunopinzwa ≤ 2.2 kJ/mm (pasi peyakajairwa). Tembiricha yepakati pemagetsi ≤ 150°C.

●100% UT neTOFD -Inobatwa zvakanyanya kupfuura UT yakajairwa.

●Kurapa Kupisa Mushure meWeld (PWHT) -Zvinodiwa pabasa rese remushonga une munyu X65. Nyikai pa580-600°C (tembiricha yakaderera pane X52 kudzivirira kurasikirwa nesimba). Bata awa imwe chete paukobvu hwe25mm. Tonhodza vira pa ≤ 150°C paawa.

●Kuwedzera kwemuchina (UOE) -Yakaganhurirwa ku0.5-0.8% (vs 1.5% yezvakajairwa) kudzivirira kuomarara kwebasa.

●Kuyedzwa kwekuomarara -Nzira nhatu dzakazara papombi imwe neimwe (simbi yesimbi, HAZ, weld centerline). 85 HRB yepamusoro.

●Kuongororwa kweHIC -Pamusana peNACE TM0284 Mhinduro A, maawa 96. Mienzaniso kubva kumagumo emapaipi.

●Kuongororwa kweSSC -Maererano neNACE TM0177 Nzira A, maawa makumi manomwe nemakumi maviri pa90% SMYS.

MaParameter ePWHT Furnace eX65 Sour:

● Tembiricha: 590°C ± 10°C (yakaderera pane X52 kuti irambe yakasimba)

● Nguva yekunyikira: awa imwe pa 25mm (inenge awa imwe chete)

● Mwero wekutonhodza: ≤ 150°C paawa kubva pa590°C kusvika 300°C

● Mathermocouple akawanda pamusoro pepombi

7. Kudzora Hunhu & Kuedzwa kweX65 Sour Service LSAW

Danho	Kuongorora	Maitiro Ekugamuchira
Ndiro	Kemikari (OES)	C ≤ 0.08, S ≤ 0.0015%, CEV ≤ 0.38, Mo 0.15-0.25%
Ndiro	Ultrasonic (lamination)	Hapana laminations > 3mm
Ndiro	Kusimba + Charpy pa -20°C	Goho ≥ 450 MPa, CVN ≥ 50J
Welding	100% UT neTOFD	Hapana zviratidzo > 1.6mm
Welding	RT (10% zvishoma)	Hapana mitswe, kushaya kubatana
Mushure mePWHT	Kuoma (HRB)-BM, Weld, HAZ	≤ 85 HRB (nzvimbo yega yega)
Zvapera	HIC (NACE TM0284)	CLR ≤ 2% (kazhinji 0%), CTR ≤ 1%, CSR ≤ 0.5%
Zvapera	SSC (NACE TM0177 Nzira A, 720h)	Hapana kutsemuka
Zvapera	Charpy pa -20°C kana pasi	≥ 27 J (min), yakajairika 80-150 J
Zvapera	Kusimba	Goho re450-570 MPa, Kusimba ≥ 535 MPa
Zvapera	Kuedzwa kweHydrostatic	90-100% SMYS

Pakeji yemagwaro inosanganisira: MTC Type 3.2, machati ePWHT, mamepu ehardness, mishumo yeHIC neSSC, marogi eUT/TOFD, zvitupa zve hydro test.

8. Mashandisirwo Ekutanga - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

●Mitsetse yematombo egasi rechisikigo ane simba guru -Kutakurwa kwegedhi kure pa10-15 MPa neH₂S kusvika 50 ppm

● Mapaipi emafuta anonaka egungwa akadzika -Mitsetse yepasi pegungwa munzvimbo dzeH₂S (kuyedzwa kweUOE + CTOD)

● Kuyerera kwemafuta asina kucheneswa -Mitsetse ine simba guru kubva pamigero yemvura kuenda kunzvimbo dziri pakati

● Migero yemvura inovava yemuchina wekuchenesa -Ammonium bisulfide uye H₂S service (kupisa kwakanyanya)

● Mapaipi ekurapa amine -Amine yakapfuma uye isina mafuta akawanda (H₂S neCO₂)

● Migodhi yekupinza negasi rine asidhi -Kuisazve musanganiswa weH₂S/CO₂ munzvimbo dzekurasa marara

● Mitsetse yekusimudza peturu -Jekiseni regasi rinovava rekusimudzira zvinhu zvekugadzira

● mapaipi eCCS ane tsvina yeH₂S -Kutora nekuchengetedza kabhoni uko rwizi rweCO₂ rune H₂S

9. Kurongedza & Kutumira - X65 Sour Service LSAW Pipe

Zvakafanana nekurongedza kweLSAW kwakajairika kune dziviriro yakawedzerwa (zvivharo zvesimbi isina stainless zvinokurudzirwa kudzivirira kusvibiswa). Magwaro anosanganisira faira yakazara yemhando yebasa rakaoma pamwe chete nemagwaro ekutumira akajairwa.

10. Mabhenefiti eWomic Steel & Mibvunzo Inowanzo bvunzwa - X65 PSL2 Sour Service LSAW

Sei Womic Steel yeX65 Sour Service?

● Chitofu chePWHT chakatsaurirwa (kureba mamita gumi nemaviri) chine tembiricha chaiyo (590°C ± 10°C)

● Kuongororwa kweHIC neSSC (kurabhoritari inobvumidzwa neCNAS)

● Maplate akasanganiswa neMo-alloy ekudzivirira SSC zvakanyanya

● Maitiro eUOE ekuderedza kushushikana kwakasara (kunosarudzwa panzvimbo pemvura yakadzika)

● Vanhu vechitatu vakaona bvunzo dzemushonga (SGS, BV, TÜV, DNV)

● Mapombi ebasa ane huremu hwemakiromita anopfuura 300 eX65 anopihwa pasi rose

Mibvunzo Inowanzo bvunzwa:

Mubvunzo: Ndeupi musiyano uripo pakati peX52 sour neX65 sour service?
A: Kushandiswa kweX65 sour kunoda simba rakawanda. X65 inoda simba rakawanda (450 vs 360 MPa yield) uku ichichengetedza miganhu yakafanana kana yakasimba yekuoma (≤ 85 HRB). Izvi zvinoda kuwedzera Mo (0.15-0.25%), kudzora kwakasimba kweCEV (≤ 0.38% vs ≤ 0.40%), uye kazhinji kudzikisa tembiricha yePWHT (590°C vs 600°C) kudzivirira kurasikirwa nesimba. X65 inowanzo tsanangurwa pamapaipi ane simba rakawanda (> 10 MPa) uye mashandisirwo emvura yakadzika mugungwa.

Mubvunzo: PWHT inosungirwa here pamapombi ese eX65 sour service pasinei nekukora kwemadziro?
A: Ehe, zvinoenderana neNACE MR0175 uye zvese zvinodiwa nevashandisi vakuru. Kunyangwe pamapaipi e6.4mm WT, PWHT inodiwa kuti iome ≤ 85 HRB uye kuderedza kushushikana kwasara. Womic inoshandisa PWHT kumapaipi eX65 ane sour service 100%.

Mubvunzo: Ndezvipi zvinodiwa zveHIC zvekugamuchira sevhisi yeX65 sour?
A: NACE TM0284 inobvumira CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Zvisinei, mapurojekiti mazhinji emvura yakadzika uye emhando yepamusoro anoda CLR = 0% (hapana mitswe). Maplate esulfur eWomic akaderera zvakanyanya (S ≤ 0.0015%) uye kurapwa kwecalcium zvinoita CLR 0% nguva dzose.

Mubvunzo: Mapaipi eX65 sour service anogona kushandiswa here munzvimbo dzine tembiricha yakaderera kana kuti munzvimbo dzine kupisa kwakaderera?
A: Ehe, pamwe nekuyedza kweCharpy impact testing yakaderera. Womic inogona kupa sevhisi yeX65 sour testing pa -20°C, -40°C, kana -46°C (min 27J). Kune sevhisi yearctic sour, tinopawo DWTT (≥ 85% shear area patembiricha yekuyedza). Cherechedza kuti tembiricha yakaderera uye sevhisi yesour pamwe chete zvinoda dhizaini yekunyatsogadzirwa kwealloy (Ni addition, low CEV). Ndapota ipai tembiricha yenyu yekushanda uye H₂S partial pressure kuti muone kana zvakakodzera.

Mubvunzo: Ndeipi H₂S yakanyanya kumanikidzwa kwechikamu cheX65 pabasa re sour?
A: Pakushandisa NACE MR0175, X65 yakakodzera kushandiswa kwesimba kusvika pa 0.3 psi (0.02 bar) H₂S padanho rekumanikidza. Kune kumanikidzwa kwakanyanya kwechikamu (semuenzaniso, 0.5-1.0 psi), zvinodiwa kuti uwane mamwe ma qualification (HIC ine pH yakaderera, SSC padanho rekumanikidza rakakwira). Womic ine X65 yakakodzera H₂S padanho rekumanikidza kusvika pa 1.0 bar yemapurojekiti chaiwo. Ndapota taurai mamiriro enyu ekushanda.

Q: Ndeipi nguva yakajairika yekupa basa reX65 sour LSAW?
A: Mazuva 80-120, zvichienderana nekuwanikwa kweplate yakasanganiswa neMo (nguva yekutanga mavhiki 8-12) uye kuongororwa kweHIC/SSC (mavhiki 4-6). Kurairwa nekukurumidza (mazuva 60-90) kunogoneka kana maplate aripo. Kuongororwa kwevamwe vanhu vanoratidza humbowo kunowedzera vhiki 1-2.

Mubvunzo: Munopa bvunzo dzeCTOD dzemhando yeX65 sour riser dziri kunze kwenyika here?
A: Ehe. Tinoita bvunzo dzeCTOD (Crack Tip Opening Displacement) zvichienderana neBS 7448 kana ASTM E1820 patembiricha yakatarwa (kazhinji -20°C kana -46°C). Hunhu hweCTOD hushoma: simbi yeweld ≥ 0.25mm, HAZ ≥ 0.30mm. Takapa mapaipi eX65 sour akaedzwa neCTOD kumapurojekiti emvura yakadzika muNorth Sea neGulf of Mexico.

Chirevo cheProjekiti-Pombi yeMapaipi eGasi Anopisa eNorth West Shelf (Australia)

Nyika:Australia (Western Australia, North West Shelf)
Standard & Giredhi:API 5L X65 PSL2 ine sour service supplement zvichienderana neNACE MR0175; zvimwe zvinodiwa zveCTOD uye tembiricha yakaderera
Zviyero & Huwandu:

● OD 610mm (24″) × Huremu 15.9mm-Mamita zviuru makumi mana nezvishanu (anenge matani 9,200) akagadzirwa neUOE process

● OD 610mm (24″) × WT 19.0mm-Mamita 12,000 (anenge matani 2,800) akagadzirwa neUOE process (madziro akakora echikamu chinokwira)

● OD 813mm (32″) × Huremu 22.2mm-Mamita 8,000 (anenge matani 3,100) akagadzirwa neJCOE process (chikamu chekunze kwegungwa)
Huwandu:Mamita 65,000 (makiromita 65), matani angangoita 15,100

Magadzirirwo:Kuvhara kwekunze kwe3LPP (3.5mm) kwekupisa kwakanyanya (95°C), magumo akachekwa 30°/1.6mm, hydrotest pa18.0 MPa (dhizaini yekumanikidza 12.5 MPa). Kumanikidzwa kweCharpy pa -20°C (min 50J, yasvika 100-160J). CTOD pa -20°C: simbi yeweld ≥ 0.25mm, HAZ ≥ 0.30mm (yasvika 0.35-0.55mm). HIC paNACE TM0284 Mhinduro A, 96h-kugamuchirwa: CLR = 0%, CTR = 0%, CSR = 0%. SSC paNACE TM0177 Nzira A, 720h pa90% SMYS-Hapana kutsemuka. Kuoma kwakanyanya 85 HRB. PWHT inoshandiswa pamapaipi ese (nyika 590°C ± 10°C, maawa 1.5). 100% UT neTOFD pamwe ne20% RT. Kuongororwa kwechitatu neDNV Australia.

Kushandiswa:Pombi yegesi inonyungudutsa inotakura gasi rechisikigo kubva kuminda iri kure negungwa (ine huwandu hweH₂S hwe15-25 ppm) kuenda kufekitori yeLNG iri kure negungwa. Pombi iyi ine makiromita makumi matanhatu nemashanu inosanganisira chikamu chemvura yakadzika pasi pegungwa (kudzika kwemvura 200-300m) uye chikamu chemvura iri kure negungwa kuburikidza nevhu rinoparadza. Pombi iyi inoshanda pa95°C uye 12.5 MPa.

Matambudziko ehunyanzvi nemhinduro:

● Kupisa kwakanyanya (95°C) pamwe chete nekushanda kwakashata -Mapombi mazhinji emvura inotonhora anoshanda pasi pe80°C. Pa95°C, NACE MR0175 inoisa miganhu yakaoma pakuomarara uye kusarudzwa kwezvinhu. Maplate eMo-alloyed akasarudzwa neWomic (Mo 0.20-0.25%) uye akashandisa 3LPP coating (polypropylene, yakayerwa kusvika 120°C) pachinzvimbo che3LPE (yakaganhurirwa kusvika 80°C). Tembiricha yePWHT yakaderedzwa kusvika 580°C kudzivirira kuomeswa zvakanyanya. Kuomarara mushure mePWHT: base metal 78-82 HRB, weld 80-84 HRB-mukati memuganhu.

● Hapana chinodiwa cheHIC chekupwanya -CLR inodiwa nemutengi = 0% (hapana mitswe yeHIC). Womic yakashandisa mapurati esulfur akaderera zvakanyanya (S ≤ 0.0008%) neCa/S ratio 2.2. Mushure mePWHT, kuongororwa kweHIC pamasampuli makumi maviri (4 pakupisa) kwakaratidza CLR 0%, CTR 0%, CSR 0%. Kuongororwa kweMicrostructure kwakaratidza chete globular sulfides (hapana MnS yakareba).

● Kusimba kweCTOD pakupwanyika kwemuchina wekusimudzira mhepo -Chikamu chekukwira (12 km) chaida kuyedzwa kweCTOD pa -20°C. Womic yakaita CTOD pasimbi yeweld neHAZ. Mhedzisiro: simbi yeweld 0.40-0.55mm, HAZ 0.45-0.70mm (pamusoro pe 0.25mm/0.30mm). Takapawo mazano akazara ekugadzirisa welding (WPQ) ekugadzira welding yemunda.

● Kubata chifukidziro chekupisa kwakanyanya (3LPP) -Kuputira kwe3LPP kunoda FBE primer (epoxy) uye polypropylene top layer. Kuputira kweWomic kunoiswa muworkshop inodzorwa nemamiriro ekunze. Simba rekubvisa pa95°C rakayerwa pa75 N/cm (zvishoma 50 N/cm). Kupatsanurwa kweCathodic pa95°C mushure memazuva makumi maviri nemasere: ≤ 6mm radius.

● Kutakura zvinhu kuenda kuWestern Australia iri kure -Mapaipi akatumirwa kubva kuShanghai kuenda kuchiteshi cheDampier (Western Australia) nechikepe chemazuva makumi maviri nemasere (rwendo rwemazuva makumi maviri nemasere). Nekuda kwemwaka wedutu, zvinhu zviviri zvakanonoka kutumirwa. Womic yakagadzirisa purogiramu yekugadzira kuti isanganise zvinhu zvakatumirwa uye kudzivirira kuderedzwa kwemitengo. Matani ese 15,100 akaunzwa mukati menguva yepurojekiti.

● Mhedzisiro:Pombi yegesi yakakangwa yakatangwa muna Kota yekutanga ya2025. Mushure memwedzi gumi nemisere yekushanda, in-line inspection (ILI) haina kuratidza kusagadzikana kwakabatana neHIC kana SSC. Mushandi wacho abvumidza Womic Steel semutengesi akakodzera wezvirongwa zvekuwedzera gasi rakakangwa mune ramangwana muNorth West Shelf.

Bata nesu:
Webhusaiti: www.womicsteel.com
E-mail: sales@womicsteel.com

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

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