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 takamaiman da kuma wani m nan gaba streamline mutunci management shirin ya kai ga filin gwajin aikace-aikace na grooved da flangeless high-yawa polyethylene (HDPE) rufin fasaha a cikin carbon karfe bututu.This takarda - PE filin cin nasara da aikace-aikace shirin a cikin carbon karfe bututu. Carbon karfe bututu hanya ce mai tsada don rage lalata na ciki a cikin bututun mai ta hanyar ware bututun ƙarfe daga gurbataccen ruwa. Fasahar tana da tasiri mai 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 matsa lamba 30 zuwa 50, yanayin zafi har zuwa 69 ° C da raguwar ruwa sama da 70%, kuma ya sha fama da asarar da yawa a cikin bututun da ke cikin bututun da ke cikin manyan filayen jiragen ruwa. Rikodi ya nuna cewa kadarorin da aka zaba kadai suna da bututun mai sama da 91 (kilomita 302) da iskar gas mai tsananin gaske (kilomita 302) Lalata. Yanayin aiki wanda ya ba da izinin aiwatar da ƙaddamar da lalata na ciki ya haɗa da ƙananan pH (4.8-5.2), kasancewar CO2 (> 3%) da H2S (> 3%), gas / man rabo 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, maras nauyi> 46 ruwa ruwa (ƙasa da 46 m) / sec. da kuma kasancewar kwayoyin cutar sulfate-sulfate sun kuma shafi dabarun ragewa.Kididdigar ɗimbin ɗimbin yawa sun nuna cewa yawancin waɗannan layin sun kasance marasa kuskure, tare da yawan leaks na 14 a cikin shekaru 5. Wannan yana haifar da matsala mai tsanani yayin da yake haifar da raguwa da katsewa wanda ke haifar da mummunar 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 ga ma'aunin wutar lantarki na HDPEr ta hanyar ƙarancin wutar lantarki. HDPE liner, kuma babu rugujewar layi.
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 ayyukan masu aikin 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 da ake amfani da ita a cikin bututun mai da layin watsawa. Baya ga bututun mai na zamani na iya zama sabbin bututun mai na HDPE. bututun. Yana ba da haske mafi kyawun ayyuka don kawar da gazawar amincin bututun saboda lalacewa daga lalatawar ciki.
Cikakken takarda ya bayyana ka'idodin aiwatarwa don gaskets HDPE; zaɓin kayan 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 hanyoyin hanyoyin, ciki har da sinadaran allura da alade, wadanda ba karfe da piping, da kuma danda carbon steel.The yanke shawara don gudanar da wani na biyu inganta filin gwajin bayan da farko gwajin da aka kuma bayyana. An san cewa flanges suna da wuyar gazawa saboda damuwa na waje. Manual venting a flange wurare ba kawai yana buƙatar saka idanu na lokaci-lokaci ba, wanda ke ƙara yawan kuɗin aiki, amma kuma yana haifar da iskar gas mai lalacewa 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.
Ramin HDPE masu ramuka tare da haɗin gwiwar flangeless welded ana amfani da su tare tare da tsarin sake allura azaman haɓakawa dangane da darussan da aka koya daga farkon tura layin HDPE a sarari tare da shirye-shiryen bidiyo akan tashoshi masu flanged.
Dangane da ka'idojin 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 lalacewar sinadarai bayan shekaru 5. An gano wasu ɓarke ​​​​da ba su shiga cikin fasa ba.Saboda haka, ana ba da shawarar yin la'akari da bambanci a cikin ƙira na ƙira na gaba. zama babban abin da ake mayar da hankali, inda zaɓukan suturar 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 ƙarancin iskar gas na rufin) shine ingantaccen bayani.
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 ƙarin bayanai daga takarda 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, Marwan 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.