1. Incamake - Impamvu X65MS + Incoloy 825 ikoreshwa muri serivisi ya Sour
Imyuka itose irimo hydrogen sulfide (H₂S), dioxyde de carbone (CO₂), ndetse akenshi na chloride - ni imwe mu nyubako zikunze kugaragara cyane ku miyoboro y'ibyuma bya karubone. Ibyuma bisanzwe bya X65 birangirika vuba bitewegucika kw'umuvuduko wa sulfide (SSC)nagucika kw'ingufu bitewe na hydrogen (HIC).
Umuyoboro wa X65MS+Incoloy 825 ufite ibyuma bibiriyagenewe by'umwihariko bene ibi bintu:
● Icyuma cyo hanze cya X65MS gishyigikiweni verisiyo ya X65 yahinduwe na sour-service. Ifite karubone nkeya (≤0.10%), sulfur nkeya (≤0.002%), n'ubukana bugenzurwa (≤248 HV) kugira ngo irwanye SSC na HIC nk'uko bisabwa na NACE MR0175 / ISO 15156.
●Interior Incoloy 825 cladding (UNS N08825)ni aloyi ishingiye kuri nikeli irimo 38-46% Ni, 19-23% Cr, 2.5-3.5% Mo, hamwe n'umuringa na titaniyumu. Ihangana na H₂S, CO₂, chloride nyinshi, sulfur y'ibanze, na aside organic mu rugero rwa pH n'ubushyuhe bwinshi.
Ibice byombi bifatanye burundu n'umugozi w'icyuma (umugozi ushyushye + JCOE urema). Bitandukanye n'umuyoboro ukozwe mu buryo bwa mekanike, harinta ngaruka zo kugwa kw'umugozi, kwangirika, cyangwa kwangirika kw'ibanga ku gice cy'imbere.
Iyi gahunda ni yo ngenderwaho mu ngandagukusanya gazi ihumanya mu nyanja,imiyoboro y'amazi akomoka ku imyuka ihumanya (AGI),Imirongo yo kugaburira ibimera bya Claus, naamariba yo kujugunyamo imyanda afite umuvuduko mwinshi.
2. Ibintu by'ingenzi n'inyungu
| Ikiranga | Inyungu |
| Serivisi ya X65MS sour ishyigikiwe | NACE MR0175 ikurikiza amabwiriza – ubukana ≤248 HV, irwanya SSC/HIC |
| Igipfundikizo cya Incoloy 825 | Irwanya H₂S, CO₂, kloride, sulfur, aside organic – PREN 30 35 |
| Ihuriro ryuzuye ry'ibyuma | Nta gucika kw'umugozi/gutandukanya umugozi – imbaraga zo gukata ≥200 MPa |
| Igihe kirekire cyo gukora | Ubusanzwe imyaka 25-30 mu gihe cyo gutanga serivisi ya gazi ihumanya |
| Kuzigama ikiguzi | 40-60% bihendutse ugereranyije n'umuyoboro ukomeye wa Incoloy 825 cyangwa Alloy 625 |
| Inyandiko yuzuye | EN 10204 3.1/3.2; Raporo y'iyubahirizwa rya NACE; UT, MT, inyandiko z'ibizamini by'amazi |
3. Amakuru ya tekiniki n'ibisobanuro by'ibikoresho
3.1 Ibikubiye mu binyabutabire (%)
| Igice | Inkingi ya X65MS (ntarengwa) | Incoloy 825 Igipfundikizo (gisanzwe) |
| Karuboni (C) | 0.10 | ≤0.05 |
| Silikoni (Si) | 0.45 | ≤0.50 |
| Manganese (Mn) | 1.35 | ≤1.00 |
| Fosifore (P) | 0.020 | ≤0.030 |
| Sulfure (S) | 0.002 | ≤0.015 |
| Chromium (Cr) | 0.30 | 19.5 – 23.5 |
| Nickel (Ni) | 0.30 | 38.0 – 46.0 |
| Molybdenum (Mo) | 0.15 | 2.5 – 3.5 |
| Umuringa (Cu) | 0.20 | 1.5 – 3.0 |
| Titanium (Ti) | 0.04 | 0.6 – 1.2 |
| Vanadium (V) | 0.08 | — |
| Niobium (Nb) | 0.05 | — |
3.2 Imiterere ya mekanike
| Umutungo | Inkingi ya X65MS | Icyuma cya Incoloy 825 |
| Imbaraga z'umusaruro (min, MPa) | 450 | 240 (yashyizwemo) |
| Imbaraga zo Gufata (min, MPa) | 535 | 550 |
| Uburebure (iminota, %) | 18 | 30 |
| Ubukomere (ntarengwa, HV10) | 248 kuri buri NACE | 240 |
| Ingaruka (Charpy, 0°C, ubushyuhe bwa J) | 100 (impuzandengo) | — |
3.3 Uburyo bwo guhuza imigozi n'uburyo bwo guhuza ingese
| Igipimo | Ibisabwa | Inyandiko |
| Ingufu zo gukata | ≥200 MPa | API 5LD |
| ubusugire bw'impapuro z'agaciro za UT | Nta gutandukana >50mm | Gusuzuma 100% |
| Ubudahangarwa bwa SSC | Icyuma gifata inyuma: NACE TM0177 Uburyo A | Nta gucikagurika kuri 80% SMYS |
| Ubudahangarwa bwa HIC | Icyuma gifata inyuma: NACE TM0284 | CLR ≤15%, CTR ≤5%, CSR ≤2% |
| Imbobo za Incoloy 825 | PREN = Cr+3.3Mo+16N ≈ 30-35 | Irwanya ubushyuhe bugera kuri 150°C mu gihe hari chloride nyinshi |
3.4 Ingano y'ibipimo (Isanzwe)
| OD (inchi/mm) | Uburemere bw'inyuma (mm) | Uburemere bw'igipfundikizo (mm) | Uburebure ntarengwa (m) |
| 8″ (219.1) | 10.0 – 18.0 | 2.0 – 2.5 | 18 |
| 10″ (273.1) | 10.0 – 20.0 | 2.0 – 2.5 | 18 |
| 12″ (323.9) | 12.0 – 22.0 | 2.0 – 3.0 | 18 |
| 16″ (406.4) | 12.0 – 25.0 | 2.5 – 3.0 | 18 |
| 20″ (508.0) | 12.0 – 28.0 | 2.5 – 3.0 | 18 |
| 24″ (609.6) | 14.0 – 30.0 | 2.5 – 3.0 | 18 |
| 30″ (762.0) | 14.0 – 30.0 | 3.0 – 3.5 | 18 |
| 40″ (1016.0) | 16.0 – 32.0 | 3.0 – 3.5 | 18 |
Ingano zihariye ziraboneka iyo ubisabye.
4. Uburyo bwo gukora - Guhuza ibyuma bishyushye + JCOE
Uburyo bwo gukora umuyoboro wa X65MS+Incoloy 825 bukurikiza neza ubwiza bwa serivisi:
●Guhitamo no kugenzura ibikoresho– Ipine ya X65MS n'ipine ya Incoloy 825 bikomoka ku nganda zemewe. Ubutabire n'ubukomere bya OES byemejwe.
● Gutegura ubuso– Amasahani yombi arasukurwa akanasenywa kugira ngo akurweho igikanka na okiside.
● Gushyiramo ibikoresho byo mu bwoko bwa vacuum– Amasahani ashyirwa hamwe (Incoloy 825 imbere), impande zifunze munsi y'umwuka (≤10 Pa) kugira ngo hirindwe ko ogisijeni ikomeza mu gihe cyo gushyushya.
● Gushyuha cyane– Ifu ishyushye kugeza kuri 1180-1250°C, izingijwe ku gipimo cyo kugabanya cyane (≥5:1). Ihuriro ry'ibyuma rikorwa binyuze mu gukwirakwiza atome.
● Isuzuma ry'aho ibyuma bipfutse– Gusuzuma 100% bya ultrasound kugira ngo harebwe ubuziranenge bw'imigozi.
● Gushinga JCOE– Isahani ipfundikiweho iracukurwa mu mpande ifite imiterere y’intambwe, hanyuma ikorwamo umuyoboro ufunguye binyuze mu mashini za JCO.
● Gusudira umushono mu gihe kirekire– Inner weld pass ifite Incoloy 625 filler; outer pass ifite low carbone steel filler. Uburyo bwo gusudira bufite ireme rya NACE/API 5LD.
● Gupfuka imyenda yo gusudira (gupfuka imyenda nta yandi)– Umugozi w'imbere ushobora gutwikirwa na Incoloy 625 kugira ngo wongere ubushobozi bwo kurwanya ingese.
● Gukoresha ubushyuhe– Kugabanya stress (PWHT) iyo bikenewe n'amategeko agenga imiterere; bitabaye ibyo nta bushyuhe bukoreshwa kugira ngo hakomeze kuba imiterere y'icyuma gishyushye.
● NDT n'ibizamini– Reba Igice cya 5.
● Gusoza kurangiza– Impera z'umuhondo + amavuta arwanya ingese + imipfundikizo ya pulasitiki.
5. Igenzura ry'Ubuziranenge n'Isuzuma – Sour Service Focus
Umuyoboro wa X65MS+Incoloy 825 urimo gupimwa neza kugira ngo urebe ko serivisi yawo idakora neza.
| Ikizamini | Uburyo / Ibisanzwe | Aho biherereye | Kwemera |
| Ubutabire n'ubukomere (inyuma) | OES + HV10 | Buri bushyuhe | Ubukana bwa X65MS; ubukana ≤248 HV |
| Ubukomere (gupfuka) | HV10 | Buri itsinda | ≤240 HV |
| Bond UT | Umubiri wose, icyuma gikata n'imiraba y'uburebure | 100% | Nta gutandukana >50mm; igiteranyo cyose <2% |
| Umushonge wo gusudira UT | Urutonde rw'ibyiciro byikora | 100% | API 5LD / DNV F101 |
| Gusudira MT / PT | Agace k'ibara gakoresha ikoranabuhanga rya "magnetic particles/colored" | Gutangiriraho mu buryo bwo gusudira, uburebure bwose | Nta bimenyetso by'umurongo |
| Ikizamini cyo gukurura no kunama | Gusuka ibintu mu buryo bwa transverse + bond shear | Kuri buri cyiciro (imiyoboro ≤50) | Kunanirwa hanze yo gusudira / gufatanya |
| Impact ya Charpy (gushyigikira) | -20°C cyangwa -40°C | Kuri buri bushyuhe | Impuzandengo ya ≥100 J |
| Ikizamini cya SSC (imfashanyo) | Uburyo bwa NACE TM0177 (gukora cyane) | Kuri buri bushyuhe / kuri buri mushinga | Nta gucikagurika kuri 80% SMYS |
| Ikizamini cya HIC (inyuma) | NACE TM0284 | Kuri buri bushyuhe / kuri buri mushinga | CLR ≤15%, CTR ≤5%, CSR ≤2% |
| Ikizamini cy'amazi | Igitutu cy'igishushanyo cya 1.5 × | Buri muyoboro | Nta gusohoka kw'amazi |
| Ifite ingano n'ishusho | Laser / caliper / amashusho | 100% | OD, WT, uburebure, bevel |
Ibizamini by'inyongera iyo ubisabye:
● Ubudahangarwa bw'imigozi (CPT / CCT) kuri Incoloy 825
● Ingufu hagati y'ibinyabutabire (ASTM A262) zo gutwikiraho ubushuhe
● Ingano ya Ferrite (ku byuma bisudira)
6. Porogaramu zisanzwe n'uburambe mu mishinga
6.1 Guteranya Gazi mu Nyanja ya High-H₂S
Aho biherereye:Ikibaya cya Sichuan, Ubushinwa (H₂S 8-15%, CO₂ 5-8%, kloride iri hagati)
Ibipimo by'umuyoboro:X65MS+Incoloy 825, OD 323.9mm, Uburemere bw'inyuma 14.3mm, igipfundikizo 2.5mm
Intego y'ubuzima bw'umurimo:Imyaka 30. Yatanzwe ibirometero 47 kuri major NOC. Irimo gukoreshwa kuva mu 2019 – nta kibazo na kimwe cyatewe n’ingese.
6.2 Uburyo bwo gutera aside gas injection (AGI)
Aho biherereye:Mu burasirazuba bwo Hagati (H₂S + CO₂ + chloride nyinshi)
Ikibazo:Amazi afunze neza cyane.
Igisubizo:Umuyoboro wa X65MS+Incoloy 825 upfundikiye, OD 406.4mm, upfundikiye 3.0mm.
Ibisubizo:Yashyizweho nk'umurongo w'amazi ujya hejuru y'umugezi; yatsinze impamyabumenyi ya NACE TM0177 na TM0284.
6.3 Umurongo w'ibiryo by'ibimera bya Claus (Serivisi ya Elemental Sulfur)
Aho biherereye:uruganda rutunganya ibikomoka ku mabuye rwo muri Gulf Coast, muri Amerika
Ikibazo:Sulfure + trace HCl byateye igitero cyihuse ku cyuma cya karuboni.
Igisubizo:Umuyoboro wa X65MS+Incoloy 825 upfutse (12″ OD, 2.8mm cladding).
Ibisubizo:Imyaka 8 imaze ikora nta kintu na kimwe cyangiritse cyangwa icyuma gishyigikira icyuma.
7. Kuki wahitamo Womic Steel kuri Sour Service Clad Pipe?
| Impamvu | Ibisobanuro birambuye |
| Inzobere mu bikoresho biryoshye | Ubunararibonye bwinshi mu gushaka plaque ya X65MS ifite ubukana buke na Incoloy 825 |
| Ubuhanga bwa NACE mu kigo | Itsinda ry'abatekinisiye rishobora gutegura dosiye zuzuye za NACE zo kubahiriza amategeko |
| Gukurikirana byuzuye | Kuva ku mubare w'ubushyuhe bw'ibice byombi kugeza ku igeragezwa rya nyuma ry'amazi |
| Igihe gito cyo kwishyura | Ibyumweru 12-16 ku bipimo bisanzwe (subiramo ibyo wategetse ibyumweru 10-12) |
| Kwemerwa kw'umuntu wa gatatu ku isi | Gukorana na DNV, BV, TÜV, SGS mu kugenzura abatangabuhamya n'ibyemezo 3.2 |
| Ibiciro bihiganwa | 40-60% munsi y'umuyoboro ukomeye wa Alloy 825 cyangwa Inconel 625 |
8. Ibibazo Bikunze Kubazwa (Ibibazo Bikunze Kubazwa)
Q1: Ni irihe tandukaniro riri hagati ya X65 na X65MS?
A: X65MS ni uburyo bwo guhindura X65 mu buryo bwa "sour service". Ifite karubone nkeya (≤0.10%), sulfur nkeya cyane (≤0.002%), kugenzura ubukana bwayo (≤248 HV), n'ibizamini bya SSC/HIC bisabwa kuri NACE MR0175. X65 isanzwe ntikwiriye H₂S yoroheje.
Ikibazo cya 2: Kuki wakoresha Incoloy 825 aho gukoresha 316L cyangwa duplex kugira ngo ubone serivisi nziza?
A: Incoloy 825 irimo nikeli nyinshi (38-46%), itanga ubudahangarwa bwiza kuri SCC na SSC bikomoka kuri chloride. Irwanya kandi kugabanya aside (urugero, HCl) na sulfur y’ibanze - aho 316L na duplex bizananirana. Ku bijyanye n’ubushyuhe bukomeye cyane (H₂S nyinshi + chloride nyinshi + S y’ibanze), Incoloy 825 akenshi ni yo CRA yemewe.
Q3: Ese cladding ya Incoloy 825 ishobora gusukwa ubwayo cyangwa ku cyuma cya karuboni?
A: Yego. Incoloy 825 ishobora gusudira hakoreshejwe GTAW (TIG), GMAW (MIG), na SMAW. Kugira ngo uhuze cladding n'cladding, koresha filler metal Alloy 82 / 82i (ERNiCr-3) cyangwa Alloy 625 (ERNiCrMo-3). Kugira ngo uhuze cladding n'icyuma cya karuboni (urugero, weld overlay), koresha urwego rwo hagati rwa Alloy 309L cyangwa 625 kugira ngo wirinde gushonga no kwangirika.
Q4: Ese uburyo bwo gusudira umushongi muremure nabwo burwanya serivisi mbi?
A: Yego. Imbere irasukwa hakoreshejwe Incoloy 625 filler (Ni, Cr, Mo iri hejuru ya 825). Iyi weld overlay itanga ubudahangarwa bungana cyangwa bwiza kurusha 825 cladding. Weld yose irasuzumwa 100% kandi ubukana bwayo bwapimwe.
Q5: Ni izihe mpamyabumenyi zitangwa kuri serivisi ya sour?
A: Dutanga icyemezo cya EN 10204 Type 3.1/3.2 kirimo isesengura ry’ubushyuhe bw’icyuma, ubukana, raporo z’ibizamini bya SSC na HIC (niba byakozwe), hamwe n’isuzuma ry’ubukana bwo gusudira. Iyo tubisabye, dutanga ibaruwa yo kubahiriza amategeko ya NACE MR0175.
Q6: Igihe gisanzwe cyo gutanga umuyoboro wa X65MS+Incoloy 825 ni ikihe?
A: Itumizwa rya mbere: ibyumweru 14-18 (harimo kugura ibikoresho bya serivisi n'ibisabwa). Gusubiramo utumizwa: ibyumweru 10-12. Isuzuma ry'umuntu wa gatatu rishobora kongeramo icyumweru 1-2.
Q7: Ese Womic Steel ishobora gutanga imiyoboro ya Inconel 625 aho gutanga Incoloy 825?
A: Yego. Ku ndwara zikomeye kurushaho (ubushyuhe bwinshi, H₂S nyinshi, chloride nyinshi), dutanga umuyoboro wa X65MS+Inconel 625 (UNS N06625). Inconel 625 ifite imbaraga nyinshi kandi irwanya imiyoboro neza (PREN >45). Twandikire kugira ngo ubone urupapuro rutandukanye rw'amakuru.
9. Amakuru yo gutumiza - Serivisi ya Sour Clad Pipe
Gusaba ibiciro byaUmuyoboro wa X65MS+Incoloy 825 ufite ibyuma bibiri ufatanye mu byuma, tanga ibi bikurikira:
● Ubugari bw'urukuta rw'icyuma cyo hanze (OD) n'icyuma cyo inyuma
● Ubugari bwa Incoloy 825 bukenewe (nibura 2.0mm isabwa kuri gaze isharira)
● Uburebure bwose (m) n'umubare w'ingingo
● Igitutu cy'igishushanyo / ibisabwa na SMYS (niba bihari)
● Ahantu hakorerwa serivisi mbi: H₂S igice cy'umuvuduko, CO₂, kloride, pH, ubushyuhe
● Ibizamini bya NACE bisabwa: SSC (Uburyo A cyangwa C), HIC – cyangwa kubahiriza NACE MR0175/ISO 15156 byuzuye
● Ibisabwa ku igenzura ry'umuntu wa gatatu
Guhuza Womic Steel:
Urubuga: www.womicsteel.com
Imeri: sales@womicsteel.com
Terefone / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568
Womic Steel – Umufatanyabikorwa wawe ku bijyanye n'ibisubizo byizewe by'imiyoboro ifunze neza.
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