Ciki lalata ya sa ADNOC ya sha wahala containment hasara a cikin bututun na wata babbar onshore man field.The sha'awar kawar da wannan matsala da kuma bukatar da za a ayyana da ƙayyadaddun da kuma wani daidai nan gaba streamline mutunci management shirin ya kai ga filin gwaji aikace-aikace na grooved da flangeless high-yawa polyethylene (HDPE) rufi fasaha a cikin carbon karfe bututu da wannan takarda da aka bayyana a cikin shekaru da aikace-aikace filin cin nasara. hanya mai inganci don rage lalata cikin bututun mai ta hanyar keɓe bututun ƙarfe daga gurbataccen ruwa.Fasaha tana da tsada wajen sarrafa lalata cikin bututun mai.
A ADNOC, Flowlines an tsara su don wucewa fiye da shekaru 20. Wannan yana da mahimmanci don ci gaba da kasuwanci da rage yawan farashin aiki. Duk da haka, kiyaye waɗannan layin da aka yi da carbon karfe ya zama kalubale saboda suna ƙarƙashin lalatawar ciki daga ruwa mai lalata, kwayoyin cuta, da kuma yanayin da ba su da kyau wanda ya haifar da ƙananan ƙananan rates.Haɗarin rashin daidaituwa ya karu tare da shekaru da canje-canje a cikin abubuwan ruwa na tafki.
ADNOC yana aiki da bututun mai a matsin lamba na 30 zuwa 50 mashaya, yanayin zafi har zuwa 69 ° C da raguwar ruwa sama da 70%, kuma ya sha wahala da yawa lokuta na asarar abubuwan da ke ciki saboda lalata cikin bututun a cikin manyan filayen da ke kan teku. Rikodi ya nuna cewa kadarorin da aka zaɓa kadai suna da fiye da 91 na bututun mai na halitta (kilomita 302) da iskar gas mai ƙarfi (kilomita 302) da iskar gas mai ƙarfi. dictated aiwatar da rage lalata na ciki ya haɗa da ƙananan pH (4.8-5.2), kasancewar CO2 (> 3%) da H2S (> 3%), gas / man rabo mafi girma fiye da 481 scf / bbl, layin zafin jiki fiye da 55 ° C, ya kwarara Line matsa lamba sama da 525 psi. Babban ruwa abun ciki (> 46%), low kwarara m 10 m / scf, low kwarara m m / sec. Ƙididdiga masu ɗorewa sun nuna cewa yawancin waɗannan layukan ba su da kyau, tare da raguwa kusan 14 a cikin shekaru 5. Wannan yana haifar da matsala mai tsanani yayin da yake haifar da raguwa da katsewa wanda ke tasiri ga samarwa.
Asarar maƙarƙashiya da buƙatar ƙima da kuma daidaitaccen tsarin kula da daidaito na gaba na gaba ya haifar da aikace-aikacen gwaji na filin na slotted da flangeless HDPE rufin fasaha a cikin 3.0 km na Jadawalin 80 API 5L Gr.B 6 inci. Streamlines don kawar da wannan matsala. An fara amfani da gwaje-gwajen filin zuwa 3.527 km na carbon, gwajin bututun ƙarfe a cikin bututun ƙarfe na 4.
The Gulf Cooperation Council (GCC) man fetur manyan a cikin Larabawa ya shigar HDPE liners a farkon 2012 ga danyen mai bututu da ruwa aikace-aikace.A GCC man fetur aiki tare da Shell da aka yin amfani da HDPE linings ga ruwa da man aikace-aikace fiye da shekaru 20, da kuma fasahar ne isa balagagge don magance ciki lalata a cikin bututun mai.
An ƙaddamar da aikin ADNOC a cikin kwata na biyu na 2011 kuma an shigar da shi a cikin kwata na biyu na 2012. Kulawa ya fara ne a cikin Afrilu 2012 kuma an kammala shi a cikin kwata na uku na 2017. Ana aika spools gwajin gwajin zuwa Cibiyar Innovation na Borouge (BIC) don kimantawa da bincike. Nasarar da gazawar da aka saita don HDPEr linear low lineaka, an saita madaidaicin madaidaicin layin HDPEr. kuma babu layin rugujewa.
Takarda SPE-192862 ya bayyana dabarun da ke ba da gudummawa ga nasarar gwaji na filin.An mayar da hankali kan tsarawa, shimfida bututun mai, da kuma kimanta aikin na'urorin HDPE don samun ilimin da ake buƙata don gano dabarun sarrafa gaskiya don aiwatar da fa'ida na bututun HDPE a cikin bututun mai.Wannan fasahar ana amfani da ita a cikin bututun mai da layin watsawa. Baya ga sabbin bututun mai na iya zama sabbin bututun mai na HDPE. kawar da gazawar amincin bututun mai saboda lalacewa daga lalatawar ciki.
Cikakken takarda ya bayyana ka'idodin aiwatarwa don gaskets HDPE;zaɓin kayan gasket, shirye-shirye, da tsarin shigarwa;zubar da iska da gwajin hydrostatic;iskar gas na shekara-shekara da saka idanu;ƙaddamar da layi;da cikakken sakamakon gwajin gwajin bayan gwajin.The Streamline Life Cycle Cost Analysis tebur ya kwatanta da kiyasta kudin-tasiri na carbon karfe da HDPE linings ga sauran lalata rage hanyoyin, ciki har da sinadaran allura da alade, wadanda ba karfe piping, da kuma danda carbon steel.The yanke shawarar gudanar da wani na biyu inganta filin gwajin bayan na farko gwajin da aka kuma bayyana. Suna da wuyar gazawa saboda damuwa na waje. Fitar da hannu a wuraren flange ba wai kawai yana buƙatar saka idanu na lokaci-lokaci ba, wanda ke ƙara yawan kuɗin aiki, amma kuma yana haifar da iskar gas mai yuwuwa zuwa yanayin.
Gwajin shekaru 5 ya tabbatar da cewa yin amfani da rufin HDPE a cikin bututun ƙarfe na carbon zai iya rage lalata na ciki a cikin bututun mai ta hanyar keɓe bututun ƙarfe daga magudanar ruwa.
Ƙara ƙima ta hanyar samar da sabis na layi ba tare da katsewa ba, kawar da alade na ciki don cire adibas da kwayoyin cuta, ajiyar kuɗi ta hanyar kawar da buƙatar sinadarai masu lalata da kwayoyin halitta, da rage yawan aiki.
Makasudin gwajin shine don rage lalata bututun na cikin gida da kuma hana asarar kayan aikin farko.
Ana amfani da layukan HDPE masu ramuka tare da welded flangeless haɗin gwiwa tare da tsarin sake allura azaman haɓakawa dangane da darussan da aka koya daga farkon ƙaddamar da layin HDPE a sarari tare da shirye-shiryen bidiyo akan tashoshi masu flanged.
Dangane da ka'idodin nasara da gazawar da aka saita don matukin jirgi, ba a ba da rahoton leaks a cikin bututun tun lokacin da aka shigar da shi ba.Ƙarin gwaji da bincike ta BIC ya nuna raguwar nauyin 3-5% a cikin layin da aka yi amfani da shi, wanda ba ya haifar da lalata sinadarai bayan shekaru 5. An gano wasu scratches waɗanda ba su shiga cikin fasa ba.Saboda haka, ana ba da shawarar yin la'akari da bambanci a cikin ƙira na ƙira na gaba. inda zaɓuɓɓukan rufin HDPE (ciki har da waɗanda aka riga aka gano ingantawa kamar maye gurbin flanges tare da masu haɗawa da ci gaba da rufi da yin amfani da bawul ɗin dubawa a cikin rufin don shawo kan yuwuwar iskar gas na rufin) tabbataccen bayani ne.
Wannan fasaha tana kawar da barazanar lalata ta ciki kuma tana ba da tanadi mai mahimmanci a cikin kashe kuɗin aiki yayin hanyoyin maganin sinadarai, kamar yadda ba a buƙatar maganin sinadarai.
Tabbatar da filin fasaha yana da tasiri mai kyau a kan sarrafa mutuncin masu aiki, yana ba da ƙarin zaɓuɓɓuka don gudanar da lalatawar cikin gida, rage farashin gabaɗaya da haɓaka aikin HSE. Flangeless grooved HDPE liners ana ba da shawarar azaman ingantacciyar hanyar kula da lalata a cikin filayen mai.
Ana ba da shawarar fasahar lullubi na HDPE don filayen mai da iskar gas da ake da su inda bututun bututu da katse layin allurar ruwa suka zama ruwan dare.
Wannan aikace-aikacen zai rage adadin gazawar layin da ke haifar da leaks na ciki, tsawaita rayuwar layin, da haɓaka yawan aiki.
Sabbin cikakkun ci gaban rukunin yanar gizon na iya amfani da wannan fasaha don sarrafa lalata cikin layi da tanadin farashi akan shirye-shiryen sa ido.
Editan Fasaha na JPT Judy Feder ne ya rubuta wannan labarin kuma ya ƙunshi bayanai daga takarda na SPE 192862, "Sakamakon gwaji na Filin Innovative na Flangeless Grooved HDPE Liner Application in a Super Gigantic Field for Oil Flowline Internal Corrosion Management" na Abby Kalio Amabipi, SPE, Kuma na Pramin Hamad Salem da kuma Tip Tip.Mohamed Ali Awadh, Borouge PTE;Nicholas Herbig, Jeff Schell da Ted Compton na United Special Technical Services for 2018 2018 a Abu Dhabi, Nuwamba 12-15 Shirya don Abu Dhabi International Petroleum Exhibition and Conference.Wannan takarda ba a sake nazarin takwarorinsu ba.
Jaridar Fasahar Fasahar Man Fetur ita ce jaridar flagship na Society of Petroleum Engineers, tana ba da taƙaitaccen taƙaitaccen bayani da fasali game da ci gaban bincike da fasahar samarwa, al'amuran masana'antar mai da iskar gas, da labarai game da SPE da membobinta.