Iindaba - Funda ngakumbi malunga ne-Oil Casing: Ukusetyenziswa, Umahluko kwimibhobho ye-API, kunye neMiba

Funda ngakumbi malunga ne-Oil Casing: Ukusetyenziswa, Umahluko kwimibhobho ye-API, kunye neMiba

Kwinkqubo enkulu yeshishini leoli, i-oyile idlala indima ebalulekileyo. YiUmbhobho wentsimbiesetyenziselwa ukuxhasa udonga lwequla lemithombo yeoli nerhasi. Isitshixo sokuqinisekisa inkqubo yokugaya egudileyo kunye nokusebenza okuqhelekileyo kweoli kakuhle emva kokugqitywa. Iqula ngalinye lifuna iileya ezininzi ze-casing ngenxa yobunzulu obuhlukeneyo bokomba kunye neemeko zejoloji. Emva kokuba i-casing ihlisiwe equleni, i-cementing iyadingeka. Ngokungafaniyo nemibhobho yeoli kunye nemibhobho yokugaya, yinto esetyenziswayo ngexesha elinye, kwaye ukusetyenziswa kwayo kubalela ngaphezu kwe-70% yazo zonke iipayipi zemithombo yeoli. Ngokusetyenziswa, i-oyile yokubeka i-oyile inokwahlulwa ibe yimibhobho yesikhokelo, i-surface casings, i-casings yobugcisa, kunye ne-oyile layer casings.

Abantu abaninzi bahlala bebhidanisa i-oyile ye-oyile kunyeUmbhobho we-API, kodwa kukho umahluko ocacileyo phakathi kwezi zinto zimbini. Umbhobho we-API luhlobo lombhobho phantsi kweenkcukacha zokusebenza eziqulunqwe kwaye zipapashwe yi-American Petroleum Institute, ehlanganisa uluhlu olubanzi, kubandakanywa neentlobo zeemveliso zepayipi ezisetyenziswa kwishishini leoli. I-oil casing ngumbhobho othile wobubanzi obukhulu obusetyenziselwa ngokukodwa ukulungisa udonga okanye i-wellbore ye-oyile kunye negesi yemithombo. Ukubeka nje, umbhobho we-API ngumgangatho oqhelekileyo, kwaye i-oyile ye-oyile ingumbhobho owenziwe ngokusekelwe kulo mgangatho kwaye unenjongo ethile.

ityhubhu yeoli yasebukhosini iqela lentsimbi

Isingxobo se-oyile sineempawu ezininzi ezibalulekileyo. Ukususela kumbono wamandla, inokwahlulwa ibe ngamabakala ahlukeneyo ensimbi ngokwamandla entsimbi ngokwayo, sUch J55, K55, N80, L80, C90, T95, P110, Q125, V150, njl., ukuziqhelanisa neemeko ezahlukeneyo zamaqula nobunzulu bomthombo. Kwiindawo ezineemeko ezinzima ze-geological, i-casing iyadingeka ukuba ibe nokusebenza kakuhle kwe-anti-collapse, ikwazi ukumelana noxinzelelo lweendlela ezijikelezayo zamatye, kunye nokukhusela i-casing kwi-deformation kunye nomonakalo. Kwindawo enemingcipheko ye-corrosion, i-casing kufuneka ibe ne-corrosion resistance ukuze ugweme ukuncipha kwodonga lombhobho kunye nokunciphisa amandla ngenxa ye-corrosion, leyo ichaphazela ukusebenza okuqhelekileyo kunye nobomi benkonzo ye-oyile.

Isingxobo se-oyile sikwindawo engenakubuyiselwa kwimveliso yeoli. Ukusetyenziswa kwayo okuyingqayizivele, ukungafani kwimibhobho ye-API, kunye neempawu zayo zonke izinto ezibalulekileyo zokuqinisekisa ukusebenza ngokufanelekileyo nokukhuselekileyo kwishishini leoli.