Ipayipi likaphethiloli elikhethekile lisetshenziswa kakhulu ekubholeni imithombo kawoyela negesi kanye nokudlulisa uwoyela negesi. Lihlanganisa ipayipi lokubhoboza uwoyela, isivalo samafutha kanye nepayipi lokupompa uwoyela. Ipayipi lokubhoboza uwoyela lisetshenziselwa ukuxhuma ikhola yokubhoboza ne-drill bit kanye namandla okubhoboza okudlulisa. Isivalo samafutha sisetshenziswa kakhulu ukusekela udonga lomthombo ngesikhathi sokubhoboza nangemva kokuqedwa, ukuze kuqinisekiswe inqubo yokubhoboza kanye nokusebenza okuvamile komthombo wonke ngemva kokuqedwa. Ipayipi lokupompa lidlulisela uwoyela negesi kusukela phansi komthombo liye phezulu.

Ibhokisi likawoyelakuyindlela yokuphila yokusebenza komthombo kawoyela. Ngenxa yezimo ezahlukene zejiyoloji, isimo sokucindezeleka ngaphansi komhlaba siyinkimbinkimbi, siyacindezela, siyacindezela, siyagoba futhi sicindezela umzimba wepayipi, okubeka phambili izidingo eziphakeme zekhwalithi yomgodi ngokwawo. Uma umgodi ngokwawo wonakele ngesizathu esithile, wonke umthombo ungancishiswa umkhiqizo noma ushiywe.

Ngokuya ngamandla ensimbi uqobo, i-casing ingahlukaniswa ngamanani ahlukene ensimbi, okungukuthiJ55, K55, N80, L80, C90, T95, P110, Q125, V150, njll. Izimo zemithombo ezahlukene, ukujula kwemithombo, ukusetshenziswa kwebanga lensimbi nakho kuhlukile. Ibhokisi ngokwalo liyadingeka ukuze libe nokumelana nokugqwala endaweni egqwalayo. Endaweni yezimo zejiyoloji eziyinkimbinkimbi, ibhokisi liyadingeka futhi ukuze libe nekhono lokumelana nokuwa.