Amathuluzi okugaya asetshenziselwa ukugaya izinhlanzi nezinye izinto zokudonsa phansi, ukuhlanza udonga lwe-casing (udonga lwembobo) noma ukulungisa i-casing. Umgomo uwukugaya izinhlanzi zibe imfucumfucu ngaphansi kokuzungezisa kanye nokucindezela kwentambo yokubhoboza nge-tungsten carbide eshiselwe engxenyeni yokusikwa yethuluzi lokugaya, futhi imfucumfucu ingabuyiselwa emhlabathini ngoketshezi lokumba.
Izinhlobo eziningi zamathuluzi okugaya zivamile ekwakhekeni, kuyilapho ngokwezimo ezihlukahlukene zezinhlanzi, izingxenye zokusika ezihambisanayo ziyadingeka. Izingxenye zokusika ezivame ukusetshenziswa zingahlelwa ngaphakathi, ngaphandle nasekupheleni kwamathuluzi okugaya.
Ngemuva kokuklama okusha kanye nokuqoqwa kobuchwepheshe eminyakeni yamuva nje, baye bahlangabezana nezidingo zangempela zamakhasimende avela e-China nakwamanye amazwe ngenxa yokusebenza okuthembekile. Ngaphandle kwezinhlobo nosayizi abasohlwini lokuqukethwe okulandelayo, siyakwamukela futhi ukukhiqiza ngokuya ngokuqokwa okukhethekile okunganelisa izidingo zekhasimende.