Kuora kwemukati kwakaita kuti ADNOC irasikirwe nekudzora mafuta ari mumigero yemafuta makuru ari mugungwa. Chido chekubvisa dambudziko iri uye kudiwa kwekutsanangura chidimbu uye hurongwa hwekugadzirisa hunhu hwemangwana hwakaita kuti tekinoroji yekuwedzera simbi ine grooved uye flangeless high-density polyethylene (HDPE) ishandiswe mumigero yesimbi yekabhoni ishande. Pepa iri rinotsanangura chirongwa chekuedza chemakore mashanu chakabudirira uye rinosimbisa kuti kushandiswa kweHDPE linings mumapombi esimbi yekabhoni inzira inodhura zvishoma yekuderedza ngura yemukati mumapombi emafuta nekuparadzanisa mapombi esimbi kubva mumvura inoparadza. Tekinoroji iyi inodhura zvishoma mukugadzirisa ngura mukati memapombi emafuta.
MuADNOC, Flowlines dzakagadzirirwa kugara kwemakore anopfuura makumi maviri. Izvi zvakakosha kuti bhizinesi rirambe richienderera mberi uye kuderedza mari yekushanda. Zvisinei, kuchengetedza mitsetse iyi yakagadzirwa nesimbi yekabhoni kunova kwakaoma nekuti inosangana nengura yemukati kubva kumvura inoparadza, mabhakitiriya, uye mamiriro ekusamira anokonzerwa nekuyerera kwakaderera. Njodzi yekukundikana kwekuvimbika inowedzera nekukura uye shanduko muhunhu hwemvura inochengetwa mudura.
ADNOC inoshandisa mapaipi ari padanho rekumanikidzwa kwe30 kusvika 50 bar, tembiricha inosvika 69°C uye mvura inodzikira inodarika 70%, uye yakatambura nematambudziko mazhinji ekurasikirwa nemidziyo nekuda kwengura yemukati mumapaipi muminda mikuru yegungwa. Zvinyorwa zvinoratidza kuti zvinhu zvakasarudzwa zvega zvine mapaipi emafuta echisikigo anopfuura 91 (makiromita 302) uye mapaipi anokwidza gasi anopfuura 45 (makiromita 100) ane ngura yemukati yakanyanya. Mamiriro ekushanda akaraira kushandiswa kwekuderedza ngura yemukati aisanganisira pH yakaderera (4.8–5.2), kuvapo kweCO2 (>3%) uye H2S (>3%), chiyero chegasi/oiri chinopfuura 481 scf/bbl, tembiricha yemutsetse inopfuura 55°C, kuyerera Kumanikidzwa kwemutsetse pamusoro pe525 psi. Mvura yakawanda (>46%), kumhanya kwemvura kushoma (pasi pe1 m/sec), mvura isingamire, uye kuvapo kwebhakitiriya inoderedza sulfate zvakakanganisawo nzira dzekuderedza. Nhamba dzekuderedza kudonha kwemvura dzinoratidza kuti mitsetse iyi yakawanda yakanga isina kunaka, nekubuda kwemvura ka14 pamusoro. makore mashanu. Izvi zvinokonzera dambudziko guru sezvo zvichikonzera kubuda kwemvura uye kukanganiswa kwezvinhu zvinokanganisa kugadzirwa kwezvinhu.
Kurasikirwa nekusimba uye kudiwa kwehukuru uye hurongwa hwekutarisira flowline hwakarurama hwemangwana zvakakonzera kushandiswa kwetekinoroji yeHDPE lining ine slotted uye flangeless mu3.0 km yeSchedule 80 API 5L Gr.B 6 inches. Kugadzirisa dambudziko iri. Kuedza kwemunda kwakatanga kushandiswa pa3.527 km yemapaipi esimbi yecarbon panzvimbo dzakasarudzwa, zvichiteverwa nekuyedzwa kwakanyanya mu4.0 km yemapaipi.
Gulf Cooperation Council (GCC) nyanzvi yemafuta muArabian Peninsula yakaisa HDPE liners kare muna 2012 dzemapaipi emafuta asina kucheneswa uye kushandiswa kwemvura. Imwe nyanzvi yemafuta yeGCC inoshanda pamwe chete neShell yave ichishandisa HDPE linings yekushandisa mvura nemafuta kwemakore anopfuura makumi maviri, uye tekinoroji iyi yakakura zvakakwana kugadzirisa ngura yemukati memapaipi emafuta.
Chirongwa cheADNOC chakatangwa muchikamu chechipiri cha2011 ndokuiswa muchikamu chechipiri cha2012. Kuongorora kwakatanga muna Kubvumbi 2012 uye kwakapedzwa muchikamu chechitatu cha2017. Zvidimbu zvekuyedza zvinozotumirwa kuBorouge Innovation Center (BIC) kuti zviongororwe uye zviongororwe. Zvinodiwa zvekubudirira nekukundikana zvakatarwa paHDPE liner pilot zvaive zvekushaya mvura mushure mekuiswa kweliner, kubvumidzwa kwegasi shoma kuburikidza neHDPE liner, uye kusadonha kweliner.
Pepa reSPE-192862 rinotsanangura nzira dzinobatsira mukubudirira kwemiedzo yemumunda. Chinangwa chiri pakuronga, kuisa mapaipi, uye kuongorora mashandiro emapaipi eHDPE kuti uwane ruzivo runodiwa pakutsvaga nzira dzekutarisira kuvimbika kwekushandisa mapaipi eHDPE mumunda wese. Iyi tekinoroji inoshandiswa mumapaipi emafuta nemitsetse yekutumira. Kuwedzera kumapaipi emafuta aripo, mapaipi eHDPE asiri esimbi anogona kushandiswa kumapaipi matsva emafuta. Rinoratidza nzira dzakanakisa dzekubvisa kutadza kwekuvimbika kwemapaipi nekuda kwekukuvadzwa nengura yemukati.
Pepa rakazara rinotsanangura zvinodiwa zvekushandisa magasket eHDPE; kusarudzwa kwezvinhu zvegasket, kugadzirira, uye kutevedzana kwekuisa; kubuda kwemhepo uye kuyedzwa kwehydrostatic; kuburitsa mweya nekutarisa gasi re annular; kuiswa kwetambo; uye mhedzisiro yakadzama yebvunzo mushure mekuyedzwa. Tafura yeKuongorora Kwemari yeStreamline Life Cycle inoratidza kushanda kwemari kwakafungidzirwa kwesimbi yekabhoni neHDPE linings kune dzimwe nzira dzekudzivirira ngura, kusanganisira kupinza nemakemikari uye kupinza, mapaipi asiri esimbi, uye simbi isina kabhoni. Sarudzo yekuita bvunzo yechipiri yakawedzerwa mushure mekuyedzwa kwekutanga inotsanangurwawo. Mubvunzo wekutanga, kubatana kweflange kwakashandiswa kubatanidza zvikamu zvakasiyana zve flowline. Zvinozivikanwa kuti ma flanges anowanzo kundikana nekuda kwekumanikidzwa kwekunze. Kuburitsa mweya nemaoko panzvimbo dzeflange hakungodi kungotariswa nguva nenguva, izvo zvinowedzera mari yekushandisa, asiwo zvinoguma nekuburitswa kwegasi rinopinda mumhepo. Mukuyedzwa kwechipiri, ma flanges akatsiviwa nema welded, flange connectors ane automatic refill system, uye slotted liner ine vent pakupera kwe remote degassing station yaizopera mu drain yakavharwa.
Kuedzwa kwemakore mashanu kunosimbisa kuti kushandiswa kweHDPE linings mumapaipi esimbi yekabhoni kunogona kuderedza ngura yemukati mumapaipi emafuta nekubvisa mapaipi esimbi kubva mumvura inoparadza.
Wedzera kukosha nekupa basa remuchina wemagetsi usingakanganiswi, kubvisa kuunganidzwa kwenguruve mukati kuti ubvise marara nemabhakitiriya, kuchengetedza mari nekubvisa kudiwa kwemakemikari anodzivirira kukura kwezvirimwa, uye kuderedza mutoro webasa.
Chinangwa chebvunzo iyi chaive chekuderedza ngura yemukati mepombi uye kudzivirira kurasikirwa nechinhu chikuru chinovhara pombi.
Mapaipi eHDPE ane mitsetse ane majoini asina flange akasungirirwa anoshandiswa pamwe chete nehurongwa hwekubayazve majekiseni sekuvandudza zvichibva pane zvidzidzo zvakadzidzwa kubva pakushandiswa kwekutanga kwemapaipi eHDPE asina tambo ane maclip pamaterminals ane flange.
Zvichienderana nezvinodiwa zvekubudirira nekukundikana zvakatarwa pakuedza, hapana kudonha kwakataurwa mupayipi kubva payakaiswa. Kumwe kuyedzwa nekuongorora kwakaitwa neBIC kwakaratidza kudzikiswa kwehuremu ne3-5% mu liner yakashandiswa, izvo zvisingakonzeri kuora kwemakemikari mushure memakore mashanu ekushandiswa. Mamwe mavanga akawanikwa asina kusvika mumaburi. Nokudaro, zvinokurudzirwa kufunga nezvemusiyano wekurasikirwa kwehuwandu mumagadzirirwo emangwana. Kuitwa kwezvipingamupinyi zvemukati mengura kunofanira kuva chinhu chikuru, uko sarudzo dzeHDPE lining (kusanganisira kuvandudzwa kwatoonekwa senge kutsiva maflanges nezvinobatanidza uye kuramba uchiisa lining uye kuisa check valve mu lining kuti ikunde kupenya kwegasi kwe lining) mhinduro yakavimbika.
Tekinoroji iyi inobvisa njodzi yekuora kwemukati uye inopa kuchengetedza kwakakosha pakushandisa mari yekushandisa panguva yekurapa nemakemikari, sezvo pasina kurapwa nemakemikari kunodiwa.
Kusimbiswa kwetekinoroji iyi kwakabatsira zvikuru pakugadzirisa mafambiro emagetsi emuchina, zvichipa dzimwe nzira dzekugadzirisa ngura yemuchina wemagetsi, zvichideredza mari yese uye zvichivandudza mashandiro eHSE. Mapurasitiki eHDPE asina flangeless grooved anokurudzirwa senzira itsva yekugadzirisa ngura mumafuta.
Tekinoroji yeHDPE lining inokurudzirwa kuminda yemafuta negesi iripo uko kunowanzo buda mapombi uye kukanganiswa kwetambo dzemvura.
Chishandiso ichi chichaderedza huwandu hwekutadza kushanda kwenzira dzemvura kunokonzerwa nekubuda kwemvura mukati, kuwedzera hupenyu hwenzira dzemvura, uye kuwedzera kugona kwayo.
Kugadzirwa kwenzvimbo itsva kunogona kushandisa tekinoroji iyi mukugadzirisa ngura iri mumutsara uye kuderedza mari pazvirongwa zvekutarisa.
Nyaya iyi yakanyorwa naJudy Feder, Mupepeti weJPT Technical uye ine zvinhu zvikuru kubva mupepa reSPE 192862, “Innovative Field Trial Trial Results of Flangeless Grooved HDPE Liner Application in a Super Gigantic Field for Oil Flowline Internal Corrosion Management” naAbby Kalio Amabipi, SPE, Marwan Hamad Salem, Siva Prasada Grandhe naTijender Kumar Gupta veADNOC; Mohamed Ali Awadh, Borouge PTE; Nicholas Herbig, Jeff Schell naTed Compton veUnited Special Technical Services ye2018 2018 muAbu Dhabi, Mbudzi 12-15 Gadzirirai Abu Dhabi International Petroleum Exhibition and Conference. Pepa iri harina kuongororwa nevezera.
Magazini yePetroleum Technology ndiyo magazini huru yeSociety of Petroleum Engineers, inopa ruzivo rwakasimba pamusoro pekufambira mberi mukutsvaga nekugadzira tekinoroji, nyaya dzeindasitiri yemafuta negasi, uye nhau nezveSPE nenhengo dzayo.