Mafuta uye gasi zvinoumbwa kubva kune zvakasara zvezvipenyu zvakaora mudombo re sedimentary pamwe chete nemaminerari edombo.Kana matombo aya akavigwa nekufukidzira sediment, iyo organic matter inoora uye inoshanduka kuita oiri uye gasi rechisikigo kuburikidza nehutachiona maitiro pamwe nekupisa kwakanyanya uye kudzvanywa.Uyezve, oiri negasi pamwe chete nemvura zvinotama kubva padombo kuenda padyo nedombo remvura (rinowanzo matombo ejecha, limestone, kana dolomites).Mafambiro anoenderera mberi kusvika vasangana nedombo risingapindiki.Nekuda kwekusiyana kwehuwandu, gasi rinowanikwa kumusoro richiteverwa nemafuta nemvura;dura reoiri rinoratidzwa muMufananidzo 1-2 rinoratidza zvidimbu zvakasiyana-siyana zvakaumbwa negesi, mafuta nemvura.
Mushure mekutsvaga kwemafuta uye kuchera maitiro kwave kuwanikwa, panguva yekugadzirwa kwemafuta uye gasi, kune nzira nhatu dzakasiyana dzekudzoreredza dzinoshandiswa;nzira dzekutanga, dzechipiri uye dzepamusoro dzekupora.Mune yekutanga kudzoreredza tekinoroji oiri inomanikidzwa kuenda pamusoro nereservoir pressure, uye mapombi anogona kushandiswa kana kudzvinyirirwa kwadzikira.Iwo ekutanga ekudzoreredza maitiro anoita 10% yekugadzirwa kwemafuta [8].Kana dhamu rakura uye kana pasina mvura yeaquifer yekutsiva mafuta anoburitsa, mvura kana gasi inoiswa mudura kuti iwedzere kudzvanywa, iyi nzira 2 inozivikanwa seyechipiri kupora;zvinoguma nekudzoreredzwa kwe20-40 % yemafuta ekutanga edhamu panzvimbo.Mufananidzo 1-3 unopa tsananguro yakajeka yemaitiro echipiri ekudzoreredza.
Chekupedzisira, nzira dzekudzoreredza dzepamusoro (nedzimwe dzinozivikanwa sekuwedzera kudzoreredza kwemafuta) dzinosanganisira jekiseni rehutsi, solvent kana bhakitiriya uye detergent kuvandudza kupora kweoiri;maitiro aya anoverengera 30-70 % yereservoir yepakutanga mafuta munzvimbo.Chimwe chezvipingamupinyi pakushandiswa kwemaitiro maviri ekupedzisira ndechekuti zvinogona kutungamirira kumvura yakasimba (chiyero).Mhando dzezviyero zvakaumbwa muindasitiri yemafuta negasi zvichakurukurwa muchikamu chinotevera.
Nguva yekutumira: Kubvumbi-27-2022