API 5L X65 PSL2 Sour Service LSAW Steel Pipe: Ubushobozi bwo gukora n'ibisobanuro by'ibicuruzwa

Ibisobanuro bigufi:

Womic Steel itanga umuyoboro w'icyuma wa API 5L X65 PSL2 sour service LSAW wo mu rwego rwo hejuru wo kohereza peteroli na gaze mu buryo busaba ingufu nyinshi mu bidukikije birimo H₂S (sour). X65 PSL2 ifite icyemezo cya sour service itanga imbaraga nkeya za 450 MPa (65,300 psi) hamwe n'imipaka ikomeye y'ubukomere (≤ 85 HRB isanzwe), ingano nto ya karubone (CEV ≤ 0.40%), kandi irwanya burundu hydrogen iterwa no gucika (HIC) na sulfide stress cracking (SSC). Uburyo bwa LSAW burimo JCOE, UOE, n'uburyo bwo gusudira plaque za rolled, hamwe n'uburyo bwo gusudira butegetswe nyuma yo gusudira (PWHT) ku miyoboro yose isukura hatitawe ku bunini bw'urukuta. Ingufu zo hanze kuva kuri 219mm kugeza 1,600mm (8″ – 63″), ubunini bw'urukuta kuva kuri 6.0mm kugeza 60mm, uburebure kugeza kuri 24m. Icyemezo cy’inganda gifite EN 10204 3.2, isuzuma rya ultrasonic 100% rikoresheje TOFD, isuzuma ry’amazi, impera zikozwe neza, hamwe n’inyandiko yuzuye ya serivisi y’umunyu (HIC, SSC, uburyo bwo gukomereka). Bikwiriye imiyoboro ya gaze y’umunyu mwinshi, ikwirakwizwa rya peteroli na gaze mu mazi, imiyoboro y’amazi y’umunyu, no gutera gaze y’aside.

Ingano y'umuyoboro w'icyuma wa LSAW:Ingano yo hanze: 219mm – 1.600mm (8″ – 63″), Ubunini bw'urukuta: 6.0mm – 60.0mm (JCOE/UOE ntarengwa 50.8mm, isahani izungurutse ntarengwa 60mm), Uburebure: 6m – 18m bisanzwe, uburebure bwihariye kugeza kuri 24m

Igipimo n'Icyiciro cy'Umuyoboro w'Icyuma wa LSAW:API 5L X65 PSL2 hamwe n'ibindi bisabwa kuri serivisi ya sour hakurikijwe NACE MR0175/ISO 15156; HIC kuri NACE TM0284; SSC kuri NACE TM0177; kandi ihuye n'inyongera ya serivisi ya sour ya DNV-OS-F101

Imikoreshereze y'Umuyoboro w'Icyuma cya LSAW:Imiyoboro y'amazi asukura gaze karemano ifite umuvuduko mwinshi (kugeza kuri 15 MPa), imiyoboro y'amazi asukura yo mu mazi maremare, imiyoboro itunganya amazi asukura na amine, imiyoboro itera aside gaze, imiyoboro iterura gaze mu mirima isukura, imiyoboro ivangwa na CO₂-H₂S, imiyoboro igarura sulfur

Womic Steel itanga ibiciro byiza kandi bishimishije by'umuyoboro w'icyuma wa API 5L X65 PSL2 sour service LSAW, umuyoboro wa HIC wapimwe, umuyoboro urwanya SSC, umuyoboro ukomeye ukurikiza NACE. Icyemezo cy'uruganda EN 10204 3.2, ikizamini cy'amazi, UT/TOFD, PWHT, impera ya beveled, irangi rya 3LPE/FBE rirahari. Itangwa ry'ibikoresho mu nganda ku mishinga ya peteroli na gaze ku isi yose.

Ohereza imeri kuri twe Ibisobanuro by'ibicuruzwa

Ibisobanuro birambuye ku gicuruzwa

Ibirango by'ibicuruzwa

1. Womic Steel: Ubushobozi bwo gukora n'imbaraga z'ikigo kuri serivisi ya X65 Sour

Womic Steel Group ikora imiyoboro yihariye yo gukora imiyoboro ya LSAW ifite serivisi zikomeye zo gukamura. Serivisi yo gukamura ya X65 irasaba cyane kurusha X52 bitewe n'imbaraga nyinshi n'ibisabwa bikomeye byo gukamura. Igenzura ry'ingenzi ririmo:

● Ingano ya karubone nke (CEV ≤ 0.40%, isanzwe ≤ 0.38%)

● Sulfure nkeya cyane (S ≤ 0.0015%) na fosifore nkeya (P ≤ 0.015%)

● Uburyo bwo kuvura kalisiyumu mu kugenzura imiterere y’umubiri (igipimo cya Ca/S ≥ 1.5)

● Amasahani yo gukonjesha yihuta (TMCP) kugira ngo agere ku miterere mito ya ferrite ikora neza

● Gukoresha ubushyuhe nyuma yo gusudira (PWHT) ku miyoboro yose, hatitawe ku bunini bw'urukuta

● Gupima ubukana 100% (gusudira, HAZ, icyuma cyo hasi) – intego ≤ 85 HRB

● Gupima HIC na SSC hakurikijwe ibipimo bya NACE nta mishinga myinshi yemerwamo

Uburyo bwo gukora: JCOE, UOE (bikunzwe bitewe n'uko nta muvuduko usigaye uhagije), icyuma gipfundikiye, byose bifite PWHT itegetswe mu itanura riva hasi mu modoka (uburebure bwa metero 12, 600°C ± 10°C). Igenzura rya gatatu rikorwa na SGS, BV, TÜV, DNV, ABS, cyangwa LR kugira ngo harebwe icyemezo cyuzuye cya serivisi mbi.

Ubushobozi bwa serivisi ya sour ya buri mwaka ya X65 LSAW:Toni 25.000.

Uburyo bworoshye bwo gukora kuri serivisi ya X65 Sour:

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

● UOE: 508–1,220mm OD × 6.0–40.0mm WIT × ≤ 24m (bikunda gukabya bitewe n'uko umuvuduko muke usigara)

● Isahani izungurutse: 600–1.600mm OD × 25–60mm Uburemere × ≤ 12m

● PWHT ishyirwa kuri buri muyoboro (winjize kuri 600°C ± 10°C, fata isaha 1 kuri buri 25mm y'ubugari, ikonje buhoro ≤ 200°C/isaha)

2. Serivisi ya API 5L X65 PSL2 Sour: Imiterere y'ibikoresho n'imikorere yabyo

Ku bijyanye na serivisi ya X65 sour, shimi irakomeye kurusha PSL2 isanzwe ndetse inakomeye kurusha X52 sour. Intego ni ukugira imbaraga nyinshi (umusaruro wa 450 MPa) mu gihe igumana ubushobozi bwiza bwo kurwanya HIC na SSC.

Imiterere y'ibinyabutabire (Isesengura ry'inzoga, intego zisanzwe za serivisi y'umusemburo):

Igice	PSL2 isanzwe ntarengwa	Intego ya serivisi ya X65 Sour (Womic)
C	0.12	≤ 0.08 (ubusanzwe 0.05-0.07)
Mn	1.60	≤ 1.40 (ubusanzwe 1.20-1.35)
P	0.025	≤ 0.015
S	0.015	≤ 0.0015 (0.0010 bisanzwe)
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	Ntabwo byagaragajwe	≤ 0.30 (ku biryoshye, akenshi 0.15-0.25)
Ni	Ntabwo byagaragajwe	≤ 0.50 (ni ngombwa ku bushyuhe buke)
CEV	≤ 0.43	≤ 0.40 (ubusanzwe ≤ 0.38)
Pcm	≤ 0.25	≤ 0.22

Gukoresha kalisiyumu (igipimo cya Ca/S ≥ 1.5) bituma habaho sulfide y’umubumbe. Kongeramo molybdenum byongera ubudahangarwa bwa SSC ku rwego rwo hejuru rw’imbaraga.

Imiterere ya Mekanike (Nyuma ya PWHT):

Umutungo	Serivisi ya X65 PSL2 Sour (Womic)
Imbaraga z'umusaruro (iminota)	450 MPa (65,300 psi)
Imbaraga z'umusaruro (ntarengwa)	570 MPa (82,700 psi)
Imbaraga zo Gufata (iminota)	535 MPa (77,600 psi)
Uburebure (iminota)	19%
Ubukomere (ntarengwa)-imishinga myinshi	85 HRB (Womic yageze kuri 78-85 HRB)
Ubukomere bw'ingaruka kuri -20°C (si ngombwa)	≥ 27 J (ubusanzwe 80-150 J)
Ubukomere bw'ingaruka kuri -46°C (si ngombwa)	≥ 27 J (ubusanzwe 60-100 J)

Isuzuma ry'agateganyo rya serivisi ya X65 Sour:

● HIC kuri NACE TM0284 (Igisubizo A, amasaha 96)-Kwemerwa: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% (imishinga myinshi isaba 0%)

● SSC kuri NACE TM0177 (Uburyo A, 720h, 90% SMYS)-nta gucikagurika

● Ubukomere bunyura mu byuma bisudira, HAZ, n'icyuma gisanzwe (ntarengwa 85 HRB)

● Charpy V-Notch kuri 0°C cyangwa munsi yayo (ubusanzwe iminota 27 J)

● DWTT (yo kugenzura imvune, niba yavuzwe)

3. Iyubahirizwa ry'ibipimo n'amahame ngenderwaho

Ikintu	Ibisobanuro
Igisanzwe	API 5L PSL2 hamwe n'inyongera ya serivisi ikarishye
NACE	NACE MR0175 / ISO 15156 (icapwa riheruka)
Uburyo bwo gukora	JCOE, UOE, isahani izungurutse (byose biriho PWHT)
Intera y'Ubugari bwo Hanze	219mm-1,600mm (8″)-63″)
Ubunini bw'urukuta	6.0mm-60mm (JCOE/UOE ntarengwa 50.8mm, isahani izungurutse ntarengwa 60mm)
Intera y'uburebure	6m -Uburebure bwa metero 18; kugeza kuri metero 24 (UOE)
Irangizwa rya nyuma	Impera y'Umugongo (BE) kuri API 5L
Kurangiza ubuso	Bare, 3LPE, 3LPP, FBE (imyambaro igomba kuba ifite ubushobozi bwo kuyisiga)
Kwihanganirana	OD: ± 0.5%; Uburebure: -0% / + 15%; Uburebure: + 50mm / -0mm

4. Ingano n'Ibisobanuro bihari - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

OD (mm)	Amahitamo y'ubwinshi bw'ibipimo (mm)	Inzira	Uburemere bugera kuri (kg/m2)	Uburebure Busanzwe	Ibiranga serivisi nziza
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6-63.6	Metero 12	PWHT, HIC yapimwe
273	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	52.3-101.5	12m / 18m	Ubukomere ≤ 85 HRB
324	10.0, 12.5, 14.0, 16.0, 19.0	JCOE	77.4-142.8	12m / 18m	CEV ≤ 0.40, Mo yongeweho
406	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	JCOE/UOE	97.7-208.4	12m / 18m	SSC yapimwe
508	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	UOE	152.7-302.3	12m / 18m / 24m	Uburyo bworoshye bwo kunyuramo
610	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	205.8-401.8	12m / 18m / 24m	HIC CLR 0% bisanzwe
711	16.0, 19.0, 22.0, 25.4, 28.0, 31.8	UOE/JCOE	274.3-532.9	12m / 18m	Itegeko rya PWHT
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/Izinguruwe	484.3-862.0	Metero 12	S iri hasi (≤ 0.0015%)
1,016	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Izungurutse	619.9-1,191.7	Metero 12	Ca yavuwe, Mo kugeza kuri 0.25%
1,220	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Izungurutse	880.9-1,577.8	Metero 12	Amazi menshi y'ubushyuhe

Imiyoboro yose ya X65 sour service yakira PWHT hatitawe ku bunini bw'urukuta. UOE ikundwa cyane ku gipimo cya ≤ 1,220mm bitewe n'uko igenzura neza imihangayiko isigaye.

5. Amahame Ahuriweho ku Muyoboro w'Umuyoboro Ufite Ingufu Nzito

Igisanzwe	Porogaramu	Ibisabwa mu isuzuma
API 5L PSL2 + Umugereka H	Umuyoboro wa serivisi y'umusemburo	HIC, SSC, ubukana ≤ 90 HRB
NACE MR0175 / ISO 15156	Ibikoresho byo mu bidukikije bya H₂S	Imipaka ku bukomere, shimi
NACE TM0284	Uburyo bwo gupima HIC	CLR, CTR, CSR
NACE TM0177	Uburyo bwo gupima bwa SSC (Uburyo A, B, C, D)	Nta gucikagurika
DNV-OS-F101 (inyongeramusaruro)	Imiyoboro y'amazi ashyushye yo mu mazi	CTOD yiyongereyeho n'umunaniro
Shell DEP 31.40.30.31	Serivisi yo korora mu mazi maremare	Ubukomere bukomeye (≤ 85 HRB)

Incamake y'ikoreshwa:Imiyoboro y'amazi ashyushye cyane, imiyoboro y'amazi ashyushye yo mu mazi maremare, serivisi z'aside mu mazi, ikigo cy'amazi ashyushye, amine, inshinge z'aside, CCS hamwe na H₂S.

6. Uburyo bwo gukora - LSAW kuri serivisi ya X65 PSL2 Sour

Serivisi ya X65 sour isaba porogaramu za TMCP zigezweho no kugenzura neza cyane uburyo zikoreshwa.

Guhitamo isahani:

● Karuboni nkeya (≤ 0.08%), manganese nkeya (≤ 1.40%), sulfure nkeya cyane (≤ 0.0015%)

● Kalisiyumu yavuwe (Ca/S ≥ 1.5)

● Kongeramo Mo (0.15-0.25%) kugira ngo SSC ikomeze kumererwa nabi

● TMCP ifite uburyo bwo gukonjesha bwihuse-imiterere mito ya ferrite isanzwe

Intambwe zihariye zo gukora JCOE / UOE + Sour:

●Gusya impande -Ubuhanga buhanitse ± 0.5mm, J bevel kugira ngo inyure neza mu gusudira.

●Gukora -UOE ikundwa (stress nke zisigaye). JCOE yemewe ku nkombe.

●gusudira SAW -Ingufu zinjira mu bushyuhe ≤ 2.2 kJ/mm (munsi y’ibisanzwe). Ubushyuhe bwo hagati y’ibice ≤ 150°C.

●100% UT hamwe na TOFD -Ifite ubukana kurusha UT isanzwe.

●Uburyo bwo kuvura ubushyuhe nyuma yo gusudira (PWHT) -Ni ngombwa ku buryo bwose bwo gukora ibiryo bitose X65. Shyira amazi mu mazi kuri 580-600°C (ubushyuhe buri hasi ya X52 kugira ngo wirinde gutakaza imbaraga). Bika isaha 1 kuri buri bunini bwa 25mm. Konjesha ifuru kuri ≤ 150°C ku isaha.

●Kwagura ikoranabuhanga (UOE) -Bigarukira kuri 0.5-0.8% (ugereranije na 1.5% ku bisanzwe) kugira ngo hirindwe ko akazi gakonje gakomera.

●Gupima ubukomere -Uburyo bwo kunyuramo butatu bwuzuye kuri buri muyoboro (icyuma cy'ibanze, HAZ, umurongo wo hagati wo gusudira). Ntarengwa 85 HRB.

●Gupima HIC -Kuri NACE TM0284 Igisubizo A, amasaha 96. Ingero zo mu mpera z'imiyoboro.

●Isuzuma rya SSC -Nk’uko NACE TM0177 ibivuga, 720h kuri 90% SMYS.

Ibipimo bya PWHT Furnace kuri X65 Sour:

● Ubushyuhe: 590°C ± 10°C (buri munsi ya X52 kugira ngo igumane imbaraga)

● Igihe cyo kuvomera: isaha 1 kuri 25mm (nibura isaha 1)

● Igipimo cyo gukonjesha: ≤ 150°C ku isaha kuva kuri 590°C kugeza kuri 300°C

● Udukoresho twinshi twa thermocouple ku buso bw'umuyoboro

7. Igenzura ry'Ubuziranenge n'Isuzuma rya X65 Sour Service LSAW

Urugendo	Igenzura	Ibipimo ngenderwaho byo Kwemera
Isahani	Ibinyabutabire (OES)	C ≤ 0.08, S ≤ 0.0015%, CEV ≤ 0.38, Mo 0.15-0.25%
Isahani	Ultrasonic (lamination)	Nta mavuta yo gufunga afite ubugari bwa > 3mm
Isahani	Gukanda + Charpy kuri -20°C	Umusaruro ≥ 450 MPa, CVN ≥ 50J
Gusudira	100% UT hamwe na TOFD	Nta bimenyetso > 1.6mm
Gusudira	RT (nibura 10%)	Nta mikurire, nta kwivanga kw'amasasu
Nyuma ya PWHT	Ubukomere (HRB)-BM, Gusudira, HAZ	≤ 85 HRB (buri gace)
Byarangiye	HIC (NACE TM0284)	CLR ≤ 2% (akenshi 0%), CTR ≤ 1%, CSR ≤ 0.5%
Byarangiye	SSC (NACE TM0177 Uburyo A, amasaha 720)	Nta gucikagurika
Byarangiye	Charpy iri kuri -20°C cyangwa munsi yayo	≥ 27 J (min), bisanzwe 80-150 J.
Byarangiye	Gufatana	Umusaruro 450-570 MPa, Gufata neza ≥ 535 MPa
Byarangiye	Ikizamini cy'amazi	90-100% SMYS

Ipaki y'inyandiko irimo: MTC Type 3.2, imbonerahamwe za PWHT, amakarita y'ubukana, raporo za HIC na SSC, inyandiko za UT/TOFD, ibyemezo by'ibizamini bya hydro.

8. Porogaramu z'ibanze - API 5L X65 PSL2 Sour Service LSAW Steel Pipe

●Imiyoboro y'amazi y'imyanda ikoresha umwuka ushyushye cyane -Ihererekanya ry'ingufu rigera ku 10-15 MPa rikoresheje H₂S kugeza kuri 50 ppm

● Imiyoboro y'amazi y'ubushyuhe yo mu mazi maremare -Imiyoboro yo munsi y'inyanja mu bidukikije bya H₂S (isuzuma rya UOE + CTOD)

● Inzira z'amavuta asharira -Imiyoboro y'amazi ikoresha umuvuduko mwinshi uva ku masoko y'amazi ujya mu bigo bikuru

● Imiyoboro y'amazi ashyushye yo mu nganda zitunganya amazi -Ammonium bisulfide na serivisi ya H₂S (ubushyuhe bwinshi)

● Imiyoboro y'ibikoresho byo kuvura amine -Amine ikungahaye kandi idafite ibinure (H₂S na CO₂)

● Amariba yo guteramo imyuka ikomoka kuri aside -Gushyiramo imvange ya H₂S/CO₂ mu duce two gutamo imyanda

● Imiyoboro yo guterura lisansi -Gutera umwuka ushyushye mu guterura ibintu mu buryo bw'ubukorano

● Imiyoboro ya CCS ifite umwanda wa H₂S -Gufata no kubika karuboni aho umugezi wa CO₂ urimo H₂S

9. Gupakira no Kohereza - Umuyoboro wa LSAW wa X65 Sour Service

Kimwe n'ipaki isanzwe ya LSAW ifite uburinzi buhanitse ku mpera (imipfundikizo y'icyuma idafunze isabwa kugira ngo hirindwe kwanduzwa). Inyandiko zikubiyemo dosiye yuzuye y'ubuziranenge bwa serivisi isharira hamwe n'inyandiko zisanzwe zo kohereza.

10. Ibyiza n'Ibibazo Bikunze Kubazwa ku byuma bya Womic Steel - X65 PSL2 Sour Service LSAW

Kuki Womic Steel ikoreshwa muri serivisi ya X65 Sour?

● Itanura rya PWHT ryagenewe (uburebure bwa metero 12) rifite uburyo bwo kugenzura ubushyuhe neza (590°C ± 10°C)

● Gupima HIC na SSC mu kigo (Laboratwari yemewe na CNAS)

● Amasahani ya Mo-alloyed kugira ngo arusheho kurwanya SSC

● Uburyo bwa UOE bwo kugabanya umuvuduko usigara (bikunda cyane kurusha amazi menshi)

● Umuntu wa gatatu yabonye isuzuma rya "sour" (SGS, BV, TÜV, DNV)

● Imiyoboro ya X65 sour irenga kilometero 300 iratangwa ku isi yose

Ibibazo Bikunze Kubazwa:

Q: Ni irihe tandukaniro riri hagati ya serivisi ya X52 sour na X65 sour?
A: Serivisi ya X65 sour irasaba imbaraga nyinshi. X65 isaba imbaraga nyinshi (umusaruro wa 450 ugereranije na 360 MPa) mu gihe igumana ubushobozi bumwe cyangwa buto (≤ 85 HRB). Ibi bisaba kongeramo Mo (0.15-0.25%), kugenzura neza CEV (≤ 0.38% ugereranije na ≤ 0.40%), kandi akenshi ubushyuhe bwa PWHT buragabanuka (590°C ugereranije na 600°C) kugira ngo hirindwe gutakaza imbaraga. X65 ikunze kugenwa ku miyoboro y'umuvuduko mwinshi (> 10 MPa) no mu mazi menshi yo mu nyanja.

Q: Ese PWHT ni itegeko ku miyoboro yose ya X65 sour service hatitawe ku bunini bw'urukuta?
A: Yego, nk'uko NACE MR0175 ibivuga ndetse n'ibisobanuro byose by'ingenzi by'umukoresha. Ndetse no ku miyoboro ya WT ya 6.4mm, PWHT irakenewe kugira ngo igere ku bukomere ≤ 85 HRB no kugabanya imihangayiko isigaye. Womic ikoresha PWHT ku miyoboro ya X65 ifite serivisi 100%.

Q: Ni ibihe bipimo bisanzwe byo kwemerwa na HIC kuri serivisi ya X65 sour?
A: NACE TM0284 yemerera CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Ariko, imishinga myinshi y’amazi maremare n’iy’ubuziranenge isaba CLR = 0% (nta cyuho). Amasafuriya ya sulfur yo mu bwoko bwa Womic (S ≤ 0.0015%) no kuvura kalisiyumu bigeraho CLR 0% buri gihe.

Q: Ese imiyoboro ya X65 sour service ikoreshwa mu duce tw’ubushyuhe cyangwa ahantu hashyushye cyane?
A: Yego, hamwe n'inyongera ku isuzuma ry'ingaruka za Charpy ku bushyuhe buke. Womic ishobora gutanga serivisi ya X65 sour hamwe n'isuzuma ry'ingaruka kuri -20°C, -40°C, cyangwa -46°C (ubuso bwa 27J). Kuri serivisi ya arctic sour, dutanga kandi DWTT (≥ 85% by'ubushyuhe bwo gukata ku bushyuhe bwo gupima). Menya ko ubushyuhe buke na serivisi ya sour hamwe bisaba igishushanyo cyitondewe cy'ibumba (inyongera ya Ni, CEV nkeya). Nyamuneka tanga ubushyuhe bwawe n'umuvuduko wa H₂S kugira ngo ubone isuzuma rikwiye.

Q: Ni ikihe gitutu ntarengwa cya H₂S kuri serivisi ya X65 sour?
A: Kuri NACE MR0175, X65 ikwiriye serivisi ishyushye kugeza kuri 0.3 psi (0.02 bar) igitutu cy'igice cya H₂S. Ku gitutu cy'igice kiri hejuru (urugero, 0.5-1.0 psi), hakenewe inyigo y'inyongera (HIC ifite pH iri hasi, SSC iri ku gitutu cy'ikirenga). Womic ifite X65 yujuje ibisabwa kuri H₂S igitutu cy'igice kugeza kuri 1.0 bar ku mishinga runaka. Nyamuneka tubwira imiterere y'imikorere yawe.

Q: Igihe gisanzwe cyo gutanga serivisi ya X65 sour LSAW ni ikihe?
A: Iminsi 80-120, bitewe n'uko plaque ya Mo-alloyed iboneka (igihe cyo kuyikoresha ni ibyumweru 8-12) n'isuzuma rya HIC/SSC (ibyumweru 4-6). Gutumiza vuba (iminsi 60-90) birashoboka niba plaque zihari. Isuzuma ry'umuntu wabonye abandi riyongeraho icyumweru 1-2.

Q: Ese mukora isuzuma rya CTOD ku binyabiziga bya X65 bishyushye byo mu mazi?
A: Yego. Dukora ikizamini cya CTOD (Crack Tip Opening Displacement) hakurikijwe BS 7448 cyangwa ASTM E1820 ku bushyuhe bwagenwe (ubusanzwe -20°C cyangwa -46°C). Ingano ntoya za CTOD: icyuma cyometseho ≥ 0.25mm, HAZ ≥ 0.30mm. Twatanze imiyoboro ya sour ya X65 yapimwe na CTOD ku mishinga yo mu mazi y’iburengerazuba mu Nyanja ya Ruguru no mu Kigobe cya Megizike.

Icyitonderwa cy'umushinga-Umuyoboro wa Gazi Ishyushye wo mu Majyaruguru y'Uburengerazuba (Ositaraliya)

Igihugu:Ositaraliya (Ositaraliya y'Iburengerazuba, Agace k'Amajyaruguru y'Uburengerazuba)
Igipimo n'Icyiciro:API 5L X65 PSL2 hamwe n'inyongera ya serivisi ishyushye kuri NACE MR0175; CTOD y'inyongera n'ibisabwa mu bushyuhe buri hasi
Ingano n'ingano:

● OD 610mm (24″) × Uburemere 15.9mm-Metero 45.000 (hafi toni 9.200) zakozwe na UOE process

● OD 610mm (24 ″) × WT 19.0mm-Metero 12.000 (hafi toni 2.800) zakozwe na UOE process (urukuta runini rw'igice cyo hejuru)

● OD 813mm (32″) × Uburemere 22.2mm-Metero 8.000 (hafi toni 3.100) zakozwe na JCOE (igice cyo ku nkombe)
Igiteranyo:Metero 65.000 (km 65), hafi toni 15.100

Ibisobanuro:Irangi ryo hanze rya 3LPP (3.5mm) rikoreshwa mu bushyuhe bwinshi (95°C), impera zikozweho 30°/1.6mm, ikizamini cya hydrotest kuri 18.0 MPa (igipimo cy'umuvuduko wa 12.5 MPa). Ingufu za Charpy zisabwa kuri -20°C (uburemere bwa 50J, zagezweho 100-160J). CTOD kuri -20°C: icyuma cyometseho ≥ 0.25mm, HAZ ≥ 0.30mm (zagezweho 0.35-0.55mm). HIC kuri NACE TM0284 Igisubizo A, amasaha 96-Kwemerwa: CLR = 0%, CTR = 0%, CSR = 0%. SSC kuri NACE TM0177 Uburyo A, amasaha 720 kuri 90% SMYS-Nta gucikagurika. Ubukomere ntarengwa bwa 85 HRB. PWHT ishyirwa ku miyoboro yose (yinjize kuri 590°C ± 10°C, amasaha 1.5). 100% UT hamwe na TOFD hamwe na 20% RT. Igenzura rya gatatu ryakozwe na DNV Ositaraliya.

Porogaramu:Umuyoboro wa gaze ihumanya utwara gaze karemano iva mu misozi miremire (ifite H₂S 15-25 ppm) ijya mu ruganda rwa LNG ruri ku nkombe. Umuyoboro wa kilometero 65 urimo igice cy’amazi y’ubujyakuzimu (ubujyakuzimu bw’amazi ni metero 200-300) n’igice cy’inyanja kiri ku nkombe binyuze mu butaka bwangiza. Umuyoboro ukora kuri dogere selisiyusi 95 na 12.5 MPa.

Ibibazo bya tekiniki n'ibisubizo:

● Ubushyuhe bwinshi (95°C) hamwe n'ubushyuhe bukabije -Imiyoboro myinshi ikora akazi katoroshye ikora munsi ya 80°C. Kuri 95°C, NACE MR0175 ishyiraho imipaka ikomeye ku bukomere n'uburyo ibikoresho bitoranywa. Amasahani ya Mo-alloyed yatoranijwe na Womic (Mo 0.20-0.25%) kandi yakoreshejwe 3LPP coating (polypropylene, ifite uburebure bwa 120°C) aho gukoresha 3LPE (ifite uburebure bwa 80°C). Ubushyuhe bwa PWHT bwagabanutse bugera kuri 580°C kugira ngo hirindwe ubushyuhe bwinshi. Ubukomere nyuma ya PWHT: icyuma cy'ibanze 78-82 HRB, weld 80-84 HRB-biri mu rugero ntarengwa.

● Nta gisabwa cya HIC cyo gucika burundu -CLR ikenewe umukiriya = 0% (nta micanga ya HIC). Womic yakoresheje plaque za sulfur nkeya cyane (S ≤ 0.0008%) hamwe n'igipimo cya Ca/S 2.2. Nyuma ya PWHT, isuzuma rya HIC ku bipimo 20 (4 kuri buri bushyuhe) ryagaragaje CLR 0%, CTR 0%, CSR 0%. Isuzuma rya microstructure ryagaragaje gusa sulfide globular (nta MnS ndende).

● Uburemere bwa CTOD bwo gucika intege ku gikoresho cyo mu mazi gitembera mu kirere -Igice cyo kuzamuka (12 km) cyasabye isuzuma rya CTOD kuri -20°C. Womic yakoze CTOD ku byuma byo gusudira na HAZ. Ibisubizo: icyuma cyo gusudira 0.40-0.55mm, HAZ 0.45-0.70mm (hejuru ya 0.25mm/0.30mm). Twanatanze inama zuzuye zo gusudira (WPQ) ku gusudira mu butaka.

● Gufatana kw'ubushyuhe bwinshi (3LPP) -Gusiga irangi rya 3LPP bisaba FBE primer (epoxy) na polypropylene hejuru. Gusiga irangi rya womic mu iduka rigenzurwa n'ikirere. Ingufu zo gukuraho kuri 95°C zipimwe kuri 75 N/cm (nibura 50 N/cm). Gusenyuka kwa Cathodic kuri 95°C nyuma y'iminsi 28: ≤ 6mm radius.

● Ibikoresho byo mu Burengerazuba bwa Ositaraliya ya kure -Imiyoboro yoherezwaga iva i Shanghai ijya ku cyambu cya Dampier (Ositaraliya y'Uburengerazuba) hakoreshejwe ubwato bunini (urugendo rw'iminsi 28). Kubera ibihe by'inkubi y'umuyaga, ibicuruzwa bibiri byatinze gutangwa. Womic yahinduye gahunda yo gukora kugira ngo ihuze ibicuruzwa no kwirinda koroshya igabanuka ry'ibiciro. Toni 15.100 zose zatanzwe mu gihe cy'umushinga.

● Ibisubizo:Umuyoboro wa gaze ya sour watangiye gukoreshwa mu gihembwe cya mbere cya 2025. Nyuma y'amezi 18 utangiye gukora, igenzura ryakozwe mu murongo (ILI) nta kibazo cyagaragaye gifitanye isano na HIC cyangwa SSC. Ikigo gishinzwe amashanyarazi cyemeje Womic Steel nk'umutangabuguzi wujuje ibisabwa mu mishinga yo kwagura gaze ya sour mu gace k'Amajyaruguru y'Uburengerazuba.

Umuntu wo kuvugana nawe:
Urubuga: www.womicsteel.com
Imeri: sales@womicsteel.com

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

Womic Steel-Umufatanyabikorwa wawe wizeye ku miyoboro y'icyuma ya API 5L X65 PSL2 sour service LSAW yo gukoresha imiyoboro y'amazi ya sour gaze ifite umuvuduko mwinshi, imiyoboro y'amazi yo mu nyanja, ndetse n'ikoreshwa rya aside ku isi yose.

Ibanjirije iyi: Umuyoboro w'icyuma wa API 5L X65 LSAW: Ubushobozi bwo gukora n'ibisobanuro by'ibicuruzwa

Ibikurikira: Umuyoboro w'icyuma wa API 5L X70 LSAW: Ubushobozi bwo gukora n'ibisobanuro by'ibicuruzwa