Njengoko sonke sisazi, i-oyile yamafutha icokiswa kwi-petroleum. Ixabiso lepetroleum liyenyuka kule minyaka, kwaye iindleko zokuqhuba zinyuka ngokunyuka. Kwinkqubo yokukhupha ioli, iipayipi ezininzi kufuneka zifakwe.

Nanku ujongo kumbhobho:

Ityhubhu (GB9948-88) ngumbhobho wensimbi ongenamthungo ofanelekileyo ityhubhu yesithando somlilo, umtshintshi wobushushu kunye nombhobho wokucoca i-petroleum.

Umbhobho wentsimbi wokomba wejoloji (YB235-70) usetyenziselwa ukugrumba okungundoqo lisebe le-geological, elinokwahlulwa libe ngumbhobho wokubhobhoza, ikhola yokubhola, umbhobho ongundoqo, umbhobho we-casing kunye nombhobho wemvula ngokokusetyenziswa kwayo.

Umbhobho we-oyile luhlobo lwentsimbi ende enecandelo elinomngxuma kwaye akukho hlanganiso ngeenxa zonke, ngelixa umbhobho wepetroleum wokuqhekeka luhlobo lwentsimbi yecandelo loqoqosho.

Iityhubhu isetyenziswa kakhulu ekwenzeni iinxalenye zesakhiwo kunye noomatshini njengemibhobho yokomba ioyile, iishafti zokuqhuba iimoto, iifreyimu zebhayisekile kunye nesikafula sentsimbi kwimifanekiso eshukumayo kulwakhiwo. Ukusebenzisa i-petroleum cracking ityhubhu ukuvelisa iinxalenye zendandatho kunokuphucula izinga lokusetyenziswa kwezinto, ukwenza lula inkqubo yokuvelisa, ukugcina izinto eziphathekayo kunye nexesha lokucubungula, njenge-ring bearing ring, jack sleeve, njl., isetyenziswe ngokubanzi ukwenza umbhobho wensimbi. ityhubhu yokuqhekeka kwepetroleum okanye iintlobo ngeentlobo zezixhobo zesiqhelo eziyimfuneko, umphanda, umgqomo njalo njalo kwityhubhu yokuqhekeka yepetroli ukuze yenziwe. Umbhobho wepetroleum wokuqhekeka unokwahlulwa ube ngumbhobho ojikelezileyo kunye nombhobho okhethekileyo ngokwemilo yendawo enqamlezileyo. Ekubeni indawo yombhobho wokuqhekeka kwepetroleum iyona inkulu kunye nomjikelezo ofanayo, ulwelo oluninzi lunokuthuthwa ngombhobho ojikelezayo.

I-API5CTIsingxobo se-oyile sisetyenziselwa ikakhulu ukuthutha ioyile, irhasi yendalo, irhasi, amanzi kunye nolunye ulwelo kunye neegesi.

Inokwahlulwa ibe ngumbhobho wentsimbi ongenamthungo kunye nombhobho wentsimbi odityanisiweyo. Umbhobho wentsimbi odityanisiweyo ubukhulu becala ubhekisa kumbhobho wentsimbi womthungo othe tye, kunye necaliber enkulu yepetroleum casing ngokuqhelekileyo ingumthungo othe tye ontywiliselwe iarc welding welding pipe. Amazwe aphambili esicelo sale mveliso asasazwa kakhulu kuMbindi Mpuma, eYurophu naseMelika.Api5cti-casing inokwahlulwa ibe yi-R-1, R-2 kunye ne-R-3 inkcukacha ngokuxhomekeke kubude. Izinto eziphambili zi-B, X42, X46, X56, X65, X70 njalo njalo. Kwiqondo eliphezulu lobushushu obugqithisileyo kunye nemekobume yoxinzelelo oluphezulu, umbhobho wezinto zepetroleum casing uneengenelo zayo zendalo ezizodwa. I-Api5ct i-oyile yokufaka i-oyile ukusuka kwizinto eziluhlaza ukuya kwiimveliso ngaphambi kokuziswa kovavanyo lokutya, uvavanyo lwe-tensile, uvavanyo lwempembelelo, uvavanyo lwe-tensile kunye nolunye uvavanyo oluhambelanayo.