Ukunyangwa kokushisa yeyona nkqubo ibaluleke kakhulu ekuqhutyweni kwe-oyile ye-oyile. Ingaba ukusebenza kunye nomgangatho wemveliso egqityiweyo unokuhlangabezana nomgangatho kuxhomekeke kakhulu kwiziphumo zonyango lokushisa. Ke ngoko, abavelisi abahlukeneyo banemfuno ezingqongqo kakhulu kwinkqubo yonyango lobushushu kwaye musani ukungahoyi. Ngamanye amaxesha inokucinywa ngokucinywa kobushushu obuphantsi. Ukucima ubushushu obuphantsi kunokususa ngokufanelekileyo uxinzelelo olushiyekileyo lwe-petroleum casing, ayinciphisi nje kuphela iqondo le-deformation ye-workpiece emva kokucinywa kodwa inokuqhuba i-petroleum casing ibe yimathiriyeli ekrwada efanelekileyo ngakumbi kwinkqubo yamva. Ngoko ke, iimpumelelo zangoku zemibhobho ye-oyile ye-oyile ayinakwahlulwa kunyango lobushushu. Ukusukela inkqubo yonyango lobushushu, nokuba kukuqina kwempembelelo, ukuxhathisa umonakalo, okanye amandla okuqina emibhobho ye-oyile yokubeka, baye baphucuka kakhulu.