I-Petrobras ifaka imithombo emisha engu-12 ekukhiqizeni, nokukhiqizwa kukawoyela negesi kuma-barrel ayizigidi ezi-3.51 kagesi owoyela ngosuku

I-Petrobras ikhiphe idatha yayo yokusebenza nokukhiqiza yekota yesithathu, eqinisekisa ukuthi imithombo emisha yokukhiqiza engu-12 yafakwa ekusebenzeni phakathi kukaJulayi noSepthemba, eyisithupha iseCampos Basin kanti eyisithupha iseSantos Basin. Njengoba ama-FPSO angu-P-78 no-P-79 endaweni yaseBúzios eqhubeka nokukhulisa umkhiqizo futhi amandla amasha okukhiqiza evulwa endaweni yaseMero, isilinganiso sokukhiqiza kwansuku zonke sekampani sikawoyela omusha, igesi yemvelo kanye noketshezi lwegesi yemvelo safinyelela imiphongolo engu-3.512 wezinto ezilingana nawoyela, sikhuphuka ngo-11.7% uma siqhathaniswa nonyaka odlule.

I-FPSO yesihlanu endaweni yaseMero, i-Alexandre de Gusmão, yafinyelela umthamo wayo wokuqala wokuklama wamabhayela angu-180,000 kawoyela ongahluziwe ngosuku ngo-Agasti 25; ngemuva kwezinyathelo zokuthuthukisa umthamo kanye nokugunyazwa yiziphathimandla zokulawula kanye nezemvelo, yafinyelela izinga eliphezulu elisha lamabhayela angu-190,000 kawoyela ongahluziwe ngosuku ngoSepthemba 3. I-Sepetiba FPSO endaweni efanayo nayo yafinyelela izinga eliphezulu lamabhayela angu-212,000 kawoyela ongahluziwe ngosuku ngoSepthemba, idlula umthamo wayo wokuqala wokuklama wokucubungula wamabhayela angu-180,000 ngosuku.

I-Almirante Tamandaré FPSO endaweni yaseBúzios isetha irekhodi lesilinganiso sokukhiqiza sanyanga sonyaka sika-263,000 wamabhayela likawoyela omusha ngosuku ngoJulayi. Ngekota yesithathu, isilinganiso sokuthathwa kwegesi ezindaweni zokukhiqiza zale ndawo sadlula izigidi eziyishumi nanye zamamitha ayikhubhu ngosuku okokuqala. Isilinganiso sokukhiqiza kwansuku zonke kuzo zonke izimpahla zikawoyela negesi ezisetshenziswa yiPetrobras ngesikhathi esifanayo safinyelela kumabhayela ayizigidi eziyisihlanu namashumi ayisishiyagalombili ekhulu ayizinkulungwane woyela olingana nawo, kanti izimpahla zikawoyela negesi zangaphambi kwetshe sikasawoti zazingamabhayela ayizigidi ezine namakhulu amane namashumi ayisithupha ayizinkulungwane woyela olingana nawo ngosuku.

Isigaba esilandelayo sokwanda emkhakathini waseBúzios sihilela ama-FPSO e-P-80 ne-P-82, asuka endaweni yemikhumbi yaseTuas Boulevard eSingapore ngoSepthemba 30 nango-Okthoba 18, ngokulandelana, aya emanzini aseBrazil. Iyunithi ngayinye inamandla okukhiqiza uwoyela ongahluziwe angamabhayela angu-225,000 ngosuku kanye namandla okucindezela igesi angamamilioni angu-12 wamamitha ayisikwele ngosuku, kuhlelwe ukuqala ngo-2027; zizoba yipulatifomu yesishiyagalolunye neyeshumi yokukhiqiza emkhakathini waseBúzios, ngokulandelana.

Ukukhishwa kukawoyela negesi yemvelo akukwazi ukwenziwa ngaphandle kwemishini yokuhlukanisa.

Ama-desander e-cyclone asebenza ngempumelelo ephezulu e-SAGA, aqashelwa abaholi bamandla omhlaba, afinyelela izinga lokuhlukanisa elingu-98%. Akhiwe nge-ceramics eqinile egugayo, la mayunithi abamba u-98% wezinhlayiya ezincane kufika ku-0.5 microns emifudlaneni yegesi. Lokhu kusekela ukujovwa kwegesi ekhiqiziwe ukuze kusetshenziswe i-miscible flooding emithonjeni yamafutha anokungena okuphansi—indledlana ebalulekile yokuthuthukisa ukubuyiswa kukawoyela ezindaweni eziyinselele. La mayunithi angaphinda futhi aphathe amanzi akhiqiziwe, asuse u-98% wezinhlayiya ezinkulu kune-2 microns ukuze ajovwe ngqo, ngalokho kuthuthukiswe ukusebenza kahle kwe-water-flood futhi kuncishiswe umthelela kwezemvelo.

I-Desander Entsha Yezinhlayiya Ezincane Kakhulu Esebenza Ngokuphezulu Kakhulu iyithuluzi lokuhlukanisa uketshezi nokuqinile elisekelwe kumgomo osebenza kahle we-centrifugal. Ihlukanisa ukungcola okulengayo kuketshezi—uketshezi, amagesi noma izingxube zoketshezi namagesi—kuhlanganise nokuqinile emanzini akhiqiziwe, emanzini olwandle kanye ne-condensate; izinhlayiya ezincane kuketshezi olune-viscosity ephezulu; kanye ne-catalyst powder kuma-reactor. Ibamba izinhlayiya eziqinile ezifika kuma-micron angu-2 ngokusebenza kahle okungama-98%. Ithuluzi lihlanganisa ukusebenza kahle okuphezulu kokukhipha isihlabathi nendawo encane yokuhlala, alidingi amandla angaphandle noma izithasiselo zamakhemikhali, linikeza isikhathi sokusebenza esingaba yiminyaka engu-20, futhi livumela ukukhishwa kwesihlabathi ku-inthanethi ngaphandle kokumisa ukukhiqiza.

Kufakazelwe emkhakathini emikhulu yomhlaba esetshenziswa yi-CNOOC, i-CNPC, i-Petronas nabanye kulo lonke elaseNingizimu-mpumalanga ye-Asia, ama-desander e-SAGA afakwa emapulatifomu emithombo kanye nasemapulatifomu okukhiqiza. Aqinisekisa ukususwa okuthembekile kwezinto eziqinile kugesi, uketshezi lomthombo kanye ne-condensate futhi abalulekile ekuhlanzeni amanzi olwandle, ekuvikeleni umfudlana wokukhiqiza kanye nasezinhlelweni zokujovwa kwamanzi/izikhukhula.

Iphothifoliyo ebanzi yokwehlukanisa ye-SAGA ihlanganisa amasistimu e-membrane okususa i-CO₂ kugesi yemvelo, ama-hydrocyclone okususa uwoyela, amayunithi e-compact flotation asebenza kahle (ama-CFU), ukususa isihlabathi kugesi ye-shale, iphakethe le-cyclonic dewatering elinokuhlanjululwa kwamanzi akhiqiziwe, kanye nama-hydrocyclone anamagumbi amaningi—okuletha izixazululo eziphelele ezinseleleni ezinzima kakhulu zemboni.