I-Corrosion yangaphakathi ibangele ukuba i-ADNOC ibe nelahleko yesithintelo kumbhobho wentsimi enkulu ye-oyile elunxwemeni. Umnqweno wokuphelisa le ngxaki kunye nesidingo sokuchaza inkcazo kunye nesicwangciso esichanekileyo solawulo lwentembeko oluchanekileyo lwexesha elizayo lukhokelele kwisicelo sovavanyo lwentsimi ye-grooved kunye ne-flangeless high-density polyethylene (HDPE) iteknoloji yokugqoka kwi-carbon-personing fields ichaza inkqubo ye-carbon steel lining le nkqubo ye-HDPE eyimpumelelo. imibhobho yentsimbi yekhabhoni yindlela engabiziyo yokunciphisa ukuhlwa kwangaphakathi kwimibhobho yeoli ngokuhlukanisa imibhobho yentsimbi kulwelo oludlekayo.Ubuchwephesha buneendleko eziphantsi ekulawuleni umhlwa ngaphakathi kwimibhobho yeoli.
Kwi-ADNOC, i-Flowlines yenzelwe ukuhlala iminyaka engaphezu kwe-20. Oku kubalulekile ekuqhubekeni kweshishini kunye nokunciphisa iindleko zokusebenza.Nangona kunjalo, ukugcina le migca eyenziwe nge-carbon steel iba ngumngeni ngenxa yokuba ixhomekeke kwi-corrosion yangaphakathi evela kumanzi atshabalalisayo, iibhaktheriya, kunye neemeko ezimileyo ezibangelwa ngamazinga aphantsi okuhamba.
I-ADNOC isebenza ngemibhobho kuxinzelelo lwe-30 ukuya kwi-50 bar, amaqondo obushushu ukuya kuma-69 ° C kunye nokucuthwa kwamanzi okungaphezulu kwe-70%, kwaye iye yabandezeleka kwiimeko ezininzi zelahleko yokukhusela ngenxa yokonakala kwangaphakathi kwimibhobho kwiindawo ezinkulu eziselunxwemeni. I-rosion.Iimeko zokusebenza ezichaza ukuphunyezwa kokunciphisa ukutshatyalaliswa kwangaphakathi kubandakanya i-pH ephantsi (4.8-5.2), ubukho be-CO2 (> 3%) kunye ne-H2S (> 3%), umlinganiselo wegesi / i-oyile ngaphezu kwe-481 scf / bbl, ubushushu bomgca obungaphezulu kwe-55 ° C, ukuhamba Uxinzelelo lomgca ngaphezu kwe-525 psi. Umthamo wamanzi aphantsi, i-46 ye-stag ye-stag, kunye ne-stag ye-46% Iibhaktheriya zokunciphisa i-sulfate nazo zichaphazele izicwangciso zokunciphisa.Izibalo zokuvuza ngokukhawuleza zibonisa ukuba ezininzi zale migca zinempazamo, kunye nokuvuza kwe-14 kwiminyaka eyi-5. Oku kubangela ingxaki enkulu njengoko kukhokelela ekuvuzeni kunye nokuphazamiseka okuchaphazela kakubi imveliso.
Ukulahlekelwa koxinzelelo kunye nesidingo sokulinganisa kunye nesicwangciso esichanekileyo solawulo lwengqibelelo yexesha elizayo kubangele isicelo sovavanyo lwentsimi yeteknoloji ye-HDPE ye-slotted kunye ne-flangeless ye-lining ye-HDPE kwi-3.0 km yeShedyuli ye-80 API 5L Gr.B i-intshi ezi-6. Ukusasaza ukuphelisa le ngxaki.Izilingo zentsimi zaqala ukusetyenziswa kwi-3.527 km ye-carbonset ye-pipelines kwiipayipi zentsimbi ezikhethiweyo kwi-4.
I-oyile yeGulf Cooperation Council (GCC) enkulu kwi-Peninsula yaseArabia yayifake ii-liner ze-HDPE kwangethuba ngo-2012 kwimibhobho yeoli ekrwada kunye nezicelo zamanzi. I-oyile ye-GCC enkulu esebenza ngokubambisana ne-Shell ibisebenzisa iileyile ze-HDPE kwizicelo zamanzi ne-oyile iminyaka engaphezu kwama-20, kwaye ubuchwepheshe bukhule ngokwaneleyo ukujongana nemibhobho yeoli yangaphakathi.
Iprojekthi ye-ADNOC yasungulwa kwikota yesibini ye-2011 kwaye ifakwe kwikota yesibini ye-2012. Ukubeka iliso kwaqala ngo-Aprili 2012 kwaye kwagqitywa kwikota yesithathu ye-2017.I-spools zokuvavanya zithunyelwa kwi-Borouge Innovation Centre (BIC) yokuvavanya kunye nohlalutyo.Ukuphumelela kunye nokungaphumeleli kwemigaqo ebekwe kwi-pieget ye-HDPE i-liaka ye-liaka ye-liaka yofakelo lwe-liaka kwi-HDPE ye-liaka ye-liaka. ner, kwaye akukho liner iwayo.
Iphepha SPE-192862 lichaza amacebo anegalelo kwimpumelelo yovavanyo lwentsimi.Ujoliso kukucwangcisa, ukubeka imibhobho, nokuvavanya ukusebenza kweeliner zeHDPE ukufumana ulwazi olufunekayo ukuze kufumaneke izicwangciso zolawulo lwentembeko ukuze kuphunyezwe ngokubanzi imibhobho ye-HDPE kwimibhobho yeoli.Le teknoloji isetyenziswa kwimibhobho yeoli kunye nemigca yokuhambisa ioyile.Ukongezelela kwimibhobho ye-oyile ye-oyile esetyenziswayo engasebenziyo. ukuphelisa ukusilela kwimfezeko yombhobho ngenxa yomonakalo ovela kukudleka kwangaphakathi.
Iphepha elipheleleyo lichaza imigaqo yokuphunyezwa kweegaskets ze-HDPE;ukhetho lwezinto zegasket, ukulungiswa, kunye nolandelelwano lofakelo;ukuvuza komoya kunye novavanyo lwe-hydrostatic;ukukhupha nokubeka iliso kwirhasi yonyaka;ukugunyaziswa komgca;kunye neziphumo zovavanyo oluneenkcukacha emva kovavanyo.Itheyibhile yokuHlalutya iNdleko yoMjikelezo woBomi oPhuhlisayo ubonisa uqikelelo lweendleko ze-carbon steel ngokuchasene ne-HDPE linings kwezinye iindlela zokunciphisa i-corrosion, kubandakanywa inaliti yeekhemikhali kunye ne-pigging, i-piping ye-non-metallic, kunye ne-carbon steel. I-flanges ithanda ukusilela ngenxa yoxinzelelo lwangaphandle.Ukungena ngesandla kwiindawo ze-flange akufuni nje ukubeka iliso ngamaxesha athile, oko kwandisa iindleko zokusebenza, kodwa kubangele ukukhutshwa kwegesi ekhoyo kwi-atmosphere.Kwilingo lwesibini, iiflange zatshintshwa nge-welded, i-flangeless connectors kunye ne-automatic refill system, kunye ne-liner slotted kunye ne-drain evaliweyo kwisikhululo esivaliweyo kwi-deremote de ventgaminates kwi-remote deregaminates kwi-drain ye-remote.
Ulingo lweminyaka emi-5 luqinisekisa ukuba ukusetyenziswa kwe-HDPE linings kwi-carbon steel linings kunokunciphisa ukubola kwangaphakathi kwimibhobho yeoli ngokuhlukanisa imibhobho yentsimbi kulwelo oludlayo.
Yongeza ixabiso ngokubonelela ngenkonzo yomgca ongaphazamisekiyo, ukuphelisa i-pigging yangaphakathi ukususa iidiphozithi kunye neebhaktheriya, ukugcinwa kweendleko ngokuphelisa imfuno yeekhemikhali ezichasayo kunye ne-biocides, kunye nokunciphisa umsebenzi.
Injongo yolu vavanyo yayikukuthomalalisa ukonakala kwangaphakathi kombhobho kunye nokuthintela ilahleko yesithintelo sokuqala.
I-Slotted HDPE liners kunye ne-welded flangeless joints zisetyenziswa ngokubambisana ne-re-injection system njengophuculo olusekelwe kwizifundo ezifundiweyo ukusuka ekuhanjisweni kokuqala kwee-liners ze-HDPE ezicacileyo kunye neziqeshana kwii-terminals ezine-flanged.
Ngokwemigaqo yokuphumelela kunye nokungaphumeleli okumiselwe umqhubi, akukho kuvuza okuye kwaxelwa kwipayipi ukususela ekufakweni.Uvavanyo olongezelelweyo kunye nohlalutyo lwe-BIC lubonise ukunciphisa i-3-5% yokunciphisa ubunzima kwi-liner esetyenzisiweyo, engabangeli ukuchithwa kweekhemikhali emva kweminyaka eyi-5 yokusetyenziswa.Eminye imikrwelo efunyenweyo ayizange yandiswe kwiintanda.Ngoko ke, kucetyiswa ukuba kuqwalaselwe ilahleko engundoqo kwi-designment ye-barrier densission in the future barriers. ingqwalasela, apho iinketho ze-HDPE ze-lining (kubandakanywa nophuculo oluchongiweyo olusele luchongiwe njengokutshintsha iiflanges kunye nezixhumi kunye nokuqhubeka kwe-lining kunye nokusebenzisa i-valve yokukhangela kwi-lining yokunqoba i-gas permeability ye-lining) Sisisombululo esithembekileyo.
Le teknoloji iphelisa isongelo sokubola kwangaphakathi kwaye ibonelela ngolondolozo olubalulekileyo kwiindleko zokusebenza ngexesha leenkqubo zonyango lwekhemikhali, njengoko kungekho unyango lweekhemikhali olufunekayo.
Ukuqinisekiswa kommandla wethekhnoloji kuye kwaba nefuthe elihle kulawulo lwengqibelelo yabaqhubi, ukubonelela ngeendlela ezininzi zokulawulwa kwe-corrosion ye-proactive flowline, ukunciphisa iindleko ezipheleleyo kunye nokuphucula ukusebenza kwe-HSE.
Itekhnoloji ye-HDPE ye-lining iyacetyiswa kwiindawo ezikhoyo ze-oyile negesi apho ukuvuza kwemibhobho kunye nokuphazamiseka komgca wokutofa kwamanzi kuxhaphakile.
Esi sicelo siya kunciphisa inani lokungaphumeleli kwe-flowline okubangelwa ukuvuza kwangaphakathi, ukwandisa ubomi bokuhamba, kunye nokwandisa imveliso.
Uphuhliso olutsha lwesiza esigcweleyo lunokusebenzisa obu buchwepheshe kulawulo lomhlwa kunye nokonga iindleko kwiinkqubo zokubeka iliso.
Eli nqaku libhalwe ngu-JPT Umhleli wezobuGcisa uJudy Feder kwaye iqulethe amanqaku aphezulu kwiphepha le-SPE 192862, "I-Innovative Field Trial Trial Results of Flangeless Grooved HDPE Liner Application in a Super Gigantic Field for Oil Flowline Internal Corrosion Management" ngu-Abby Kalio Amabipi, SPE, Marwan Hamad Salem, Gup Prasander kunye no-Gup Prasander we-AD.U-Mohamed Ali Awadh, uBorouge PTE;UNicholas Herbig, uJeff Schell kunye noTed Compton we-United Special Technical Services kwi-2018 2018 e-Abu Dhabi, ngoNovemba 12-15 Lungiselela i-Abu Dhabi International Petroleum Exhibition kunye neNkomfa.Eli phepha alizange lihlaziywe ngontanga.
Ijenali yeTekhnoloji yePetroleum yijenali ye-Flegship yoMbutho weeNjineli zePetroleum, inikezela ngeengcaciso ezigunyazisiweyo kunye neempawu malunga nenkqubela phambili yokuhlola nokuvelisa iteknoloji, imiba ye-oyile negesi yeshishini, kunye neendaba malunga ne-SPE kunye namalungu ayo.