Ọrụ Ngwakọta API 5L X65 PSL2 LSAW Pịpụ ígwè: Ike nrụpụta na nkọwapụta ngwaahịa Foto a na-egosipụta

Ọrụ Ngwakọta API 5L X65 PSL2 LSAW Steel Pipe: Ike Mmepụta na Nkọwapụta Ngwaahịa

Nkọwa Dị Mkpirikpi:

Womic Steel na-enye paịpụ ígwè dị elu nke API 5L X65 PSL2 maka nnyefe mmanụ na gas siri ike na gburugburu H₂S nwere nrụgide dị elu (gbara mmiri). X65 PSL2 nwere asambodo ọrụ gbara ọchịchịrị na-enye ike mmepụta kacha nta nke 450 MPa (65,300 psi) yana oke siri ike siri ike (≤ 85 HRB nkịtị), obere nha nhata carbon (CEV ≤ 0.40%), yana nguzogide a na-ekwe nkwa na mgbaji hydrogen induced (HIC) na mgbaji nrụgide sulfide (SSC). Usoro LSAW gụnyere JCOE, UOE, na ụzọ ịgbado efere a na-akpọ rolled, yana ọgwụgwọ okpomọkụ mgbe weld gasịrị (PWHT) maka paịpụ ọrụ gbara mmiri niile n'agbanyeghị ọkpụrụkpụ mgbidi. Dayameta mpụga site na 219mm ruo 1,600mm (8″ – 63″), ọkpụrụkpụ mgbidi site na 6.0mm ruo 60mm, ogologo ruo 24m. Asambodo igwe e ji arụ ọrụ nwere EN 10204 3.2, nnwale ultrasonic 100% nwere TOFD, nnwale mmiri, njedebe beveled, na ngwugwu akwụkwọ ọrụ sour service zuru oke (HIC, SSC, ike traverses). Dabara adaba maka paịpụ gas sour pressure dị elu, nnyefe mmanụ sour offshore, eriri mmiri sour streaming, na ntinye gas acidic.

Nha Paịpụ ígwè LSAW:Dayameta Mpụta: 219mm – 1,600mm (8″ – 63″), Ọkpụrụkpụ Mgbidi: 6.0mm – 60.0mm (JCOE/UOE kacha 50.8mm, efere a kpụrụ akpụ kacha 60mm), Ogologo: 6m – 18m ọkọlọtọ, ogologo omenala ruo 24m

Ọkọlọtọ na ọkwa nke LSAW Steel Pipe:API 5L X65 PSL2 yana ihe ndị ọzọ achọrọ maka ọrụ sour dị ka NACE MR0175/ISO 15156 si dị; HIC kwa NACE TM0284; SSC kwa NACE TM0177; na-emezukwa mgbakwunye ọrụ sour dị ka DNV-OS-F101.

Ojiji nke LSAW Steel Pipe:Ahịrị ogwe gas sitere n'okike nke nwere nrụgide dị elu (ruo 15 MPa), paịpụ mmanụ sour mmiri miri emi n'ụsọ oké osimiri, ebe a na-esi nri mmiri sour na amine, olulu mmiri a na-etinye na gas acid, eriri ebuli gas n'ọhịa sour, paịpụ ọrụ agwakọta CO₂-H₂S, ọkpọkọ mgbake sọlfọ.

Womic Steel na-enye ọnụahịa dị elu ma dị mma nke API 5L X65 PSL2 ọrụ sour path LSAW ígwè, paịpụ ahịrị HIC a nwalere, paịpụ na-eguzogide SSC, paịpụ siri ike dị elu nke kwekọrọ na NACE. Asambodo igwe ọkụ EN 10204 3.2, nnwale mmiri, UT/TOFD, PWHT, njedebe beveled, mkpuchi 3LPE/FBE dị. A na-enye ọrụ ozugbo n'ụlọ ọrụ mmepụta ihe maka ọrụ mmanụ na gas sour n'ụwa niile.

Zitere anyị ozi-e Nkọwapụta Ngwaahịa

Nkọwa Ngwaahịa

Akara Ngwaahịa

1. Womic Steel: Ike Mmepụta na Ike Ụlọ Ọrụ maka Ọrụ Mkpofu X65

Womic Steel Group na-arụ ọrụ mmepụta pụrụ iche maka ọkpọkọ LSAW siri ike nke na-arụ ọrụ utoojoo. Ọrụ utoojoo X65 na-achọ ihe karịrị X52 n'ihi ike dị elu na ihe achọrọ siri ike. Isi njikwa gụnyere:

● Ihe nhata kabọn dị ala (CEV ≤ 0.40%, nke a na-ahụkarị ≤ 0.38%)

● Sọlfọ dị ala nke ukwuu (S ≤ 0.0015%) na phosphorus dị ala (P ≤ 0.015%)

● Ọgwụgwọ calcium maka njikwa ọdịdị nke ihe mejupụtara (Ca/S ruru ≥ 1.5)

● Efere oyi ngwa ngwa (TMCP) iji nweta obere nhazi ferrite acicular

● Ọgwụgwọ okpomọkụ mgbe a gbanyere ya (PWHT) maka paịpụ niile, n'agbanyeghị ọkpụrụkpụ mgbidi ya

● Nnwale siri ike 100% (weld, HAZ, metal base) - ihe mgbaru ọsọ ≤ 85 HRB

● Nnwale HIC na SSC dịka ụkpụrụ NACE si dị na enweghị nnabata mgbawa maka ọtụtụ ọrụ

Usoro mmepụta: JCOE, UOE (a na-ahọrọ n'ihi obere nrụgide fọdụrụ), efere a kpụrụ akpụ, ihe niile nwere PWHT a chọrọ n'ime ọkụ ụgbọala (ogologo mita 12, 600°C ± 10°C). Nnyocha nke ndị ọzọ site na SGS, BV, TÜV, DNV, ABS, ma ọ bụ LR maka asambodo ọrụ gbara ụka zuru oke.

Ọrụ utoojoo kwa afọ nke X65 LSAW:Tọn 25,000.

Mgbanwe Mmepụta maka Ọrụ Sour X65:

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

● UOE: 508–1,220mm OD × 6.0–40.0mm WT × ≤ 24m (a na-ahọrọ ya maka utoojoo n'ihi obere nrụgide fọdụrụ)

● Efere a gbagọrọ agbagọ: 600–1,600mm OD × 25–60mm WT × ≤ 12m

● A na-etinye PWHT n'ime paịpụ ọ bụla (mikpuo 600°C ± 10°C, jide otu awa kwa ọkpụrụkpụ 25mm, jiri nwayọ nwayọ jụọ oyi ≤ 200°C/hr)

2. Ọrụ Ngwakọta API 5L X65 PSL2: Nhazi Ihe na Njirimara Arụmọrụ

Maka ọrụ sour X65, kemistri siri ike karịa PSL2 nkịtị ma sie ike karịa X52 sour. Ebumnuche ya bụ inweta ike dị elu (mkpụrụ 450 MPa) ma nọgide na-enwe ezigbo iguzogide HIC na SSC.

Ihe mejupụtara kemịkalụ (Nyocha Ladle, ihe mgbaru ọsọ a na-ahụkarị maka ọrụ utoojoo):

Ihe	PSL2 kachasị elu	X65 Sour Service Target (Womic)
C	0.12	≤ 0.08 (ihe a na-ahụkarị bụ 0.05-0.07)
Mn	1.60	≤ 1.40 (ihe a na-ahụkarị bụ 1.20-1.35)
P	0.025	≤ 0.015
S	0.015	≤ 0.0015 (0.0010 nkịtị)
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	Akọwapụtaghị ya	≤ 0.30 (maka utoojoo, nke na-abụkarị 0.15-0.25)
Ni	Akọwapụtaghị ya	≤ 0.50 (nhọrọ maka obere okpomọkụ)
CEV	≤ 0.43	≤ 0.40 (ihe a na-ahụkarị bụ ≤ 0.38)
Pcm	≤ 0.25	≤ 0.22

Ọgwụgwọ calcium (nke Ca/S ruru ≥ 1.5) na-eme ka a mata na sulfide dị n'ụwa niile. Mgbakwunye molybdenum na-eme ka iguzogide SSC ka mma na ọkwa ike dị elu.

Njirimara Mechanical (Mgbe PWHT gasịrị):

Akụ na ụba	Ọrụ Mgbu X65 PSL2 (Womic)
Ike Mmepụta (nkeji)	450 MPa (65,300 psi)
Ike Mmepụta (kachasị)	570 MPa (82,700 psi)
Ike nrụgide (nkeji)	535 MPa (77,600 psi)
Ogologo (nkeji)	Pasentị iri na itoolu
Ike siri ike (kachasị)-ọtụtụ ọrụ	85 HRB (Nwanyị na-enweta 78-85 HRB)
Ike Mmetụta @ -20°C (nhọrọ)	≥ 27 J (ihe a na-ahụkarị bụ 80-150 J)
Ike Mmetụta @ -46°C (nhọrọ)	≥ 27 J (ihe a na-ahụkarị bụ 60-100 J)

Nnwale a chọrọ maka ọrụ X65 Sour:

● HIC kwa NACE TM0284 (Ngwọta A, awa 96)-Nnabata: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% (ọtụtụ ọrụ chọrọ 0%)

● SSC kwa NACE TM0177 (Ụzọ A, 720h, 90% SMYS)-enweghị mgbawa

● Ike siri ike na-agafe na weld, HAZ, na base metal (kachasị 85 HRB)

● Charpy V-Notch na 0°C ma ọ bụ dị ala (nke na-abụkarị 27 J nkeji)

● DWTT (maka njikwa mgbawa, ọ bụrụ na akọwapụtara ya)

3. Nrubeisi na Nrubeisi nke Oke na Ụkpụrụ

ihe	Nkọwapụta
Ọkọlọtọ	API 5L PSL2 yana mgbakwunye ọrụ mmiri ara ehi
NACE	NACE MR0175 / ISO 15156 (mbipụta kachasị ọhụrụ)
Usoro Mmepụta	JCOE, UOE, efere a kpụrụ akpụ (niile nwere PWHT)
Oke Dayameta Mpụta	219mm-1,600mm (8"-63")
Oke ọkpụrụkpụ mgbidi	6.0mm-60mm (JCOE/UOE kacha 50.8mm, efere a kpụrụ akpụ kacha 60mm)
Ogologo Ogologo	6m -ọkọlọtọ 18m; ruo 24m (UOE)
Ọgwụgwụ Ọgwụgwụ	Ọgwụgwụ Beveled (BE) kwa API 5L
Mmecha Elu	Bare, 3LPE, 3LPP, FBE (mkpuchi ahụ ga-abụrịrị nke ruru unyi)
Ndochi	OD: ±0.5%; WT: -0% / +15%; Ogologo: +50mm / -0mm

4. Nha na nkọwapụta dị - API 5L X65 PSL2 Ọrụ Sour LSAW Steel Pipe

OD (mm)	Nhọrọ WT (mm)	Usoro	Ibu dị ihe dịka (kg/m)	Ogologo Ọkọlọtọ	Atụmatụ Ọrụ Sour
219	6.4, 8.0, 10.0, 12.5	JCOE	33.6-63.6	12m	A nwalere PWHT, HIC
273	8.0, 10.0, 12.5, 14.0, 16.0	JCOE	52.3-101.5	12m / 18m	Ike siri ike ≤ 85 HRB
324	10.0, 12.5, 14.0, 16.0, 19.0	JCOE	77.4-142.8	12m / 18m	CEV ≤ 0.40, agbakwunyere Mo
406	10.0, 12.5, 14.0, 16.0, 19.0, 22.0	JCOE/UOE	97.7-208.4	12m / 18m	A nwalere SSC
508	12.5, 14.0, 16.0, 19.0, 22.0, 25.4	UOE	152.7-302.3	12m / 18m / 24m	Ike zuru oke na-agafe
610	14.0, 16.0, 19.0, 22.0, 25.4, 28.0	UOE	205.8-401.8	12m / 18m / 24m	HIC CLR 0% nkịtị
711	16.0, 19.0, 22.0, 25.4, 28.0, 31.8	UOE/JCOE	274.3-532.9	12m / 18m	PWHT dị mkpa
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/Akpụkpọgharị	484.3-862.0	12m	S dị ala (≤ 0.0015%)
1,016	25.4, 30.0, 35.0, 40.0, 45.0, 50.0	Akpọchiri akpọchi	619.9-1,191.7	12m	A gwọrọ Ca, Mo ruo 0.25%
1,220	30.0, 35.0, 40.0, 45.0, 50.0, 55.0	Akpọchiri akpọchi	880.9-1,577.8	12m	Mmiri miri emi na-agba mmiri

Paịpụ ọrụ sour X65 niile na-enweta PWHT n'agbanyeghị ọkpụrụkpụ mgbidi. A na-ahọrọ UOE maka dayameta ≤ 1,220mm n'ihi njikwa nrụgide fọdụrụnụ dị elu.

5. Ụkpụrụ Ndị A Na-ahụkarị Maka Ọkpọkọ Ọrụ Mmiri Dị Elu

Ọkọlọtọ	Ngwa	Ihe Ndị A Ga-achọ Nnwale
API 5L PSL2 + Mgbakwunye H	Paịpụ ọrụ mmiri ara ehi	HIC, SSC, ike ≤ 90 HRB
NACE MR0175 / ISO 15156	Ihe maka gburugburu H₂S	Oke na ike, kemistri
NACE TM0284	Usoro ule HIC	CLR, CTR, CSR
NACE TM0177	Usoro ule SSC (Ụzọ A, B, C, D)	Enweghị mgbawa
DNV-OS-F101 (mgbakwunye mmiri ara ehi)	Ọkpọkọ mmiri mmiri dị n'ụsọ oké osimiri	CTOD ọzọ na ike ọgwụgwụ
Shell DEP 31.40.30.31	Ọrụ mmiri miri emi	Ike siri ike (≤ 85 HRB)

Nchịkọta ojiji:Ahịrị akpa gas sour nke nwere nrụgide dị elu, paịpụ mmanụ miri emi, ọrụ acidic dị n'ụsọ oké osimiri, mmiri sour nke ụlọ ọrụ mmepụta ihe, nkeji amine, ntinye gas acid, CCS na H₂S.

6. Usoro Mmepụta - LSAW maka Ọrụ Sour X65 PSL2

Ọrụ X65 dị nro chọrọ efere TMCP dị elu na njikwa usoro siri ike nke ukwuu.

Nhọrọ efere:

● Kabọn dị ala (≤ 0.08%), manganese dị ala (≤ 1.40%), sọlfọ dị ala (≤ 0.0015%)

● Calcium a gwọrọ (Ca/S ≥ 1.5)

● Mgbakwunye Mo (0.15-0.25%) maka iguzogide SSC

● TMCP nwere oke oyi ngwa ngwa-obere nhazi ferrite acicular

Usoro JCOE / UOE + Usoro ndị a kapịrị ọnụ:

●N'akụkụ igwe egweri -Nke kacha mma ±0.5mm, J bevel maka mma itinye aka na njikọta.

●Ịkpụpụta -A na-ahọrọ UOE (nrụgide fọdụrụ dị ala). A na-anabata JCOE maka n'ime mmiri.

●SAW ịgbado ọkụ -Ntinye okpomọkụ ≤ 2.2 kJ/mm (dị ala karịa ọkọlọtọ). Ọnọdụ okpomọkụ nke gafere ≤ 150°C.

●100% UT na TOFD -Ọ na-enwe mmetụta karịa UT nkịtị.

●Ọgwụgwọ Okpomọkụ Mgbe Weld gasịrị (PWHT) -Ọ dị mkpa ka e jiri X65 mee ihe niile dị ka mmiri ara ehi. Mikpuo ya na 580-600°C (okpomọkụ dị ala karịa X52 iji zere ịda mbà n'ike). Jide otu awa kwa ọkpụrụkpụ 25mm. Jiri ọkụ dị jụụ na ≤ 150°C kwa awa.

●Mgbasawanye igwe (UOE) -A na-ebelata ya na 0.5-0.8% (ma e jiri ya tụnyere 1.5% maka ọkọlọtọ) iji zere ime ka ọrụ oyi sie ike.

●Nnwale siri ike -Mkpọchi atọ zuru oke maka otu paịpụ (ígwè ntọala, HAZ, eriri etiti nke ịgbado ọkụ). Oke HRB 85.

●Nnwale HIC -Dịka NACE TM0284 Solution A si dị, awa 96. Ihe atụ sitere na nsọtụ paịpụ.

●Nnwale SSC -Dịka NACE TM0177 Method A si dị, awa 720 na 90% SMYS.

Usoro ọkụ PWHT maka X65 Sour:

● Okpomọkụ: 590°C ± 10°C (dị ala karịa maka X52 iji jide ike)

● Oge mmiri: 1 awa kwa 25mm (opekempe 1 awa)

● Oke oyi: ≤ 150°C kwa elekere site na 590°C ruo 300°C

● Ọtụtụ thermocouples n'elu paịpụ

7. Njikwa na Nnwale Ogo maka Ọrụ Mgbu X65 LSAW

Ogbo egwuregwu	Nnyocha	Usoro Nnabata
Efere	Kemịkal (OES)	C ≤ 0.08, S ≤ 0.0015%, CEV ≤ 0.38, Mo 0.15-0.25%
Efere	Ultrasonic (lamination)	Enweghị lamination > 3mm
Efere	Nrụgide + Charpy na -20°C	Mmepụta ≥ 450 MPa, CVN ≥ 50J
Weld	100% UT na TOFD	Enweghị ihe ngosi > 1.6mm
Weld	RT (opekempe 10%)	Enweghị mgbawa, enweghị njikọ
Mgbe PWHT gasịrị	Ike (HRB)-BM, Weld, HAZ	≤ 85 HRB (mpaghara ọ bụla)
Emechara	HIC (NACE TM0284)	CLR ≤ 2% (ọtụtụ mgbe 0%), CTR ≤ 1%, CSR ≤ 0.5%
Emechara	SSC (Usoro NACE TM0177 A, awa 720)	Enweghị mgbawa
Emechara	Charpy @ -20°C ma ọ bụ ala	≥ 27 J (nkeji), nke 80-150 J
Emechara	Ndọkpụ	Nnyefe 450-570 MPa, Nrụgide ≥ 535 MPa
Emechara	Nnwale Hydrostatic	SMYS 90-100%

Ngwugwu akwụkwọ gụnyere: MTC Type 3.2, chaatị PWHT, maapụ siri ike, akụkọ HIC na SSC, ndekọ UT/TOFD, asambodo nnwale mmiri.

8. Ngwa Ndị Isi - API 5L X65 PSL2 Ọrụ Sour LSAW Steel Pipe

●Ahịrị ogwe gas sitere n'okike dị elu na-agbaze agbaze -Nnyefe dị anya na 10-15 MPa yana H₂S ruo 50 ppm

● Ọkpọkọ mmanụ mmiri miri emi n'èzí -Ahịrị ndị dị n'okpuru mmiri na gburugburu H₂S (nnwale UOE + CTOD)

● Usoro mmanụ dị nro -Ahịrị nrụgide dị elu site na isi olulu mmiri ruo na ebe etiti

● Ụlọ ọrụ mmepụta mmiri mmiri na-agbaze agbaze -Ọrụ Ammonium bisulfide na H₂S (okpomọkụ dị elu)

● Paịpụ nke Amine na-agwọ ihe -Amine bara ọgaranya na nke dị nro (H₂S na CO₂)

● Olulu mmiri gas a na-etinye n'ime ihe -Ịtinyeghachi ngwakọta H₂S/CO₂ n'ime ebe a na-ekpofu ihe

● Ahịrị mbuli gas -Ntugharị nke gas gbara ụka maka ebuli ihe arụrụ arụ

● Ọkpọkọ CCS nwere adịghị ọcha H₂S -Njide na nchekwa nke carbon ebe iyi CO₂ nwere H₂S

9. Nkwakọ ngwaahịa na Mbupu - Ọrụ Mkpokọ X65 LSAW Pipe

Otu ihe ahụ dị ka nkwakọ ngwaahịa LSAW ọkọlọtọ nwere nchekwa njedebe ka mma (a na-atụ aro mkpuchi ígwè anaghị agba nchara iji zere mmetọ). Akwụkwọ ndị a gụnyere akwụkwọ nchekwa ọrụ zuru oke na mgbakwunye na akwụkwọ mbupu ọkọlọtọ.

10. Uru na Ajụjụ Ndị A Na-ajụkarị Banyere Womic Steel - X65 PSL2 Sour Service LSAW

Gịnị kpatara Womic Steel ji arụ ọrụ X65 Sour?

● Ọkụ ọkụ PWHT raara onwe ya nye (ogologo mita 12) nwere njikwa okpomọkụ kpọmkwem (590°C ± 10°C)

● Nnwale HIC na SSC n'ime ụlọ (ụlọ nyocha CNAS kwadoro)

● Efere ndị e ji mo-alloy mee maka iguzogide SSC dị elu

● Usoro UOE maka obere nrụgide fọdụrụ (a na-ahọrọ maka mmiri miri emi)

● Ndị ọzọ hụrụ nnwale utoojoo dị (SGS, BV, TÜV, DNV)

● A na-enye ihe karịrị kilomita 300 nke paịpụ ọrụ sour X65 n'ụwa niile

Ajụjụ Ndị A Na-ajụkarị:

Q: Kedu ihe dị iche n'etiti ọrụ X52 sour na X65 sour?
A: Ọrụ utoojoo X65 na-achọ ihe siri ike karịa. X65 chọrọ ike dị elu (450 vs 360 MPa mmepụta) ebe ọ na-ejigide oke ike siri ike ma ọ bụ nke siri ike karị (≤ 85 HRB). Nke a chọrọ mgbakwunye Mo (0.15-0.25%), njikwa CEV siri ike (≤ 0.38% vs ≤ 0.40%), na-ebelata okpomọkụ PWHT (590°C vs 600°C) iji zere mfu ike. A na-akọwakarị X65 maka paịpụ nrụgide dị elu (> 10 MPa) na ngwa mmiri miri emi dị n'èzí.

A: Ọ dị mkpa ka e jiri PWHT mee ihe maka paịpụ mmiri X65 niile n'agbanyeghị ọkpụrụkpụ mgbidi ya?
A: Ee, dịka NACE MR0175 na nkọwapụta ndị ọrụ niile si dị. Ọbụlagodi maka paịpụ WT 6.4mm, a chọrọ PWHT iji nweta ike ≤ 85 HRB ma belata nrụgide fọdụrụ. Womic na-etinye PWHT na 100% nke paịpụ X65 ọrụ sour service.

A: Kedu ihe bụ ụkpụrụ nnabata HIC nkịtị maka ọrụ sour X65?
A: NACE TM0284 na-enye ohere CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. Agbanyeghị, ọtụtụ ọrụ mmiri miri emi na nke dị elu chọrọ CLR = 0% (enweghị mgbawa). Efere sọlfọ dị ala nke Womic (S ≤ 0.0015%) na ọgwụgwọ calcium na-enweta CLR 0% mgbe niile.

Q: Enwere ike iji paịpụ ọrụ sour X65 mee ihe na gburugburu arctic ma ọ bụ ebe okpomọkụ dị ala?
A: Ee, site na nnwale mmetụta Charpy dị ala karịa. Womic nwere ike inye ọrụ sour X65 yana nnwale mmetụta na -20°C, -40°C, ma ọ bụ -46°C (nkeji 27J). Maka ọrụ sour arctic, anyị na-enyekwa DWTT (≥ 85% mpaghara shear na okpomọkụ nnwale). Rịba ama na ọrụ okpomọkụ dị ala na sour ọnụ chọrọ nhazi alloy nke ọma (mgbakwunye Ni, obere CEV). Biko nye okpomọkụ ọrụ gị na nrụgide akụkụ H₂S maka nyocha kwesịrị ekwesị.

Q: Kedu ihe bụ nrụgide akụkụ H₂S kachasị maka ọrụ utoojoo X65?
A: Dịka NACE MR0175 si kwuo, X65 dabara maka ọrụ utoojoo ruo 0.3 psi (0.02 bar) H₂S nke nrụgide akụkụ. Maka nrụgide akụkụ dị elu (dịka ọmụmaatụ, 0.5-1.0 psi), achọrọ asambodo ọzọ (HIC nwere obere pH, SSC na nrụgide dị elu). Womic enwetala X65 maka nrụgide akụkụ H₂S ruo 1.0 bar maka ọrụ ụfọdụ. Biko kesaa ọnọdụ ọrụ gị.

Q: Kedu oge ndu nkịtị maka ọrụ mmiri ara ehi X65 LSAW?
A: Ụbọchị 80-120, dabere na ebe efere Mo-alloyed dị (oge ndu izu 8-12) na ule HIC/SSC (izu 4-6). O kwere omume ịnye iwu ngwa ngwa (ụbọchị 60-90) ma ọ bụrụ na efere dị na ngwaahịa. Nnwale ndị ọzọ hụrụ na-agbakwụnye izu 1-2.

A: Ị na-enye nnwale CTOD maka X65 sour risers dị n'ụsọ oké osimiri?
A: Ee. Anyị na-eme nnwale CTOD (Crack Tip Opening Displacement) 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: ígwè weld ≥ 0.25mm, HAZ ≥ 0.30mm. Anyị enyela paịpụ mmiri X65 nke CTOD nwalere na ọrụ mmiri miri emi na North Sea na Gulf of Mexico.

Ntụaka Ọrụ-Ọkpọkọ Gas Sour nke North West Shelf (Australia)

Obodo:Ọstrelia (Ọstrelia Ọdịda Anyanwụ, Ọstrelia Ọdịda Anyanwụ)
Ọkọlọtọ na ọkwa:API 5L X65 PSL2 yana mgbakwunye ọrụ utoojoo dịka NACE MR0175 si kwuo; CTOD ọzọ na obere okpomọkụ achọrọ
Akụkụ na Ọnụọgụ:

● OD 610mm (24″) × WT 15.9mm-Mita 45,000 (ihe dị ka tọn 9,200) nke usoro UOE mepụtara

● OD 610mm (24 ″) × WT 19.0mm-Mita 12,000 (ihe dị ka tọn 2,800) nke usoro UOE mepụtara (mgbidi dị oke ibu maka ngalaba riser)

● OD 813mm (32″) × WT 22.2mm-Mita 8,000 (ihe dị ka tọn 3,100) nke usoro JCOE mepụtara (ngalaba dị n'akụkụ mmiri)
Ngụkọta:Mita 65,000 (kilomita 65), ihe dị ka tọn 15,100

Nkọwapụta:Mkpuchi 3LPP mpụta (3.5mm) maka oke okpomọkụ (95°C), nsọtụ beveled 30°/1.6mm, nnwale hydro na 18.0 MPa (nrụgide imewe 12.5 MPa). Mmetụta Charpy dị mkpa na -20°C (min 50J, ruru 100-160J). CTOD na -20°C: ígwè weld ≥ 0.25mm, HAZ ≥ 0.30mm (erute 0.35-0.55mm). HIC kwa NACE TM0284 Ngwọta A, 96h-Nnabata: CLR = 0%, CTR = 0%, CSR = 0%. SSC kwa NACE TM0177 Usoro A, awa 720 na 90% SMYS-ọ dịghị mgbawa. Ike kachasị 85 HRB. A na-etinye PWHT n'ime paịpụ niile (mikpuo 590°C ± 10°C, awa 1.5). 100% UT na TOFD tinyere 20% RT. Nnyocha nke ndị ọzọ site n'aka DNV Australia.

Ngwa:Ọkpọkọ gas na-esi n'oké osimiri ebuga gas sitere n'okpur ala (nke nwere ọdịnaya H₂S nke 15-25 ppm) gaa n'ọdụ ụgbọ mmiri LNG dị n'akụkụ osimiri. Ọkpọkọ ahụ nke dị kilomita 65 gụnyere akụkụ mmiri miri emi (omimi mmiri 200-300m) na akụkụ dị n'akụkụ osimiri site na ala na-emebi emebi. Ọkpọkọ ahụ na-arụ ọrụ na 95°C na 12.5 MPa.

Ihe Ịma Aka na Ngwọta Teknụzụ:

● Oke okpomọkụ (95°C) jikọtara ya na ọrụ utoojoo -Ọtụtụ paịpụ ọrụ mmiri ara ehi na-arụ ọrụ n'okpuru 80°C. Na 95°C, NACE MR0175 na-etinye oke siri ike na ike na nhọrọ ihe. Womic họọrọ efere Mo-alloyed (Mo 0.20-0.25%) ma jiri mkpuchi 3LPP (polypropylene, nke a tụrụ na 120°C) kama 3LPE (ejedebe na 80°C). E wedara okpomọkụ PWHT ruo 580°C iji zere oke okpomọkụ. Ike mgbe PWHT gasịrị: ígwè ntọala 78-82 HRB, weld 80-84 HRB-nke ọma n'ime oke.

● Ihe achọrọ maka HIC efu mgbawa -Onye ahịa chọrọ CLR = 0% (enweghị mgbawa HIC). Womic jiri efere sọlfọ dị ala (S ≤ 0.0008%) yana oke Ca/S 2.2. Mgbe PWHT gasịrị, nnwale HIC na ihe nlele 20 (4 kwa okpomọkụ) gosiri CLR 0%, CTR 0%, CSR 0%. Nnyocha microstructure gosiri naanị sulfide globular (enweghị MnS ogologo).

● Ike mgbawa CTOD maka ịrị elu mmiri -Ngalaba riser (kilomita 12) chọrọ nnwale CTOD na -20°C. Womic mere CTOD na ígwè weld na HAZ. Nsonaazụ ya: ígwè weld 0.40-0.55mm, HAZ 0.45-0.70mm (karịa 0.25mm/0.30mm). Anyị nyekwara ndụmọdụ maka asambodo usoro weld zuru oke (WPQ) maka ịgbado ọkụ ubi.

● Mkpuchi okpomọkụ dị elu (3LPP) -Mkpuchi 3LPP chọrọ FBE primer (epoxy) na polypropylene elu oyi akwa. Mkpuchi e tinyere n'ime womic n'ebe a na-achịkwa ihu igwe. Ike ịkpụ na 95°C nke a tụrụ na 75 N/cm (opekempe 50 N/cm). Mwepụ nke cathodic na 95°C mgbe ụbọchị 28 gachara: ≤ 6mm radius.

● Njem njem gaa n'ebe dị anya n'Ebe Ọdịda Anyanwụ Ọstrelia -E si na Shanghai bufee paịpụ gaa n'ọdụ ụgbọ mmiri Dampier (Ọdịda Anyanwụ Ọstrelia) site na ụgbọ mmiri na-agbaji (njem ụbọchị 28). N'ihi oge oké ifufe, e jiri nwayọ nwayọ bufee ụgbọ mmiri abụọ. Womic gbanwere usoro mmepụta iji mee ka mbupu ndị ahụ sie ike ma zere imebi ihe. E bufere tọn 15,100 niile n'ime windo ọrụ ahụ.

● Nsonaazụ:E tinyere ọrụ na paịpụ gas sour na nkeji mbụ nke afọ 2025. Mgbe ọnwa iri na asatọ nke ọrụ gasịrị, nyocha in-line (ILI) egosighi ihe ọ bụla metụtara HIC ma ọ bụ SSC. Onye na-arụ ọrụ ahụ akwadola Womic Steel dị ka onye na-ebubata ihe ruru eru maka ọrụ mgbasa gas sour n'ọdịnihu na North West Shelf.

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 ọrụ API 5L X65 PSL2 sour service LSAW pulọn ígwè maka ahịrị akpati gas sour trunk dị elu, paịpụ mmiri miri emi dị n'ụsọ oké osimiri, na ngwa ọrụ acidic n'ụwa niile.

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

Osote: API 5L X70 LSAW Steel Paịpụ: Ike Mmepụta na Nkọwapụta Ngwaahịa