Ipayipi eliwugqinsi elibiyelwe ngezindonga, ipayipi lensimbi elilingana nobubanzi obungaphandle nogqinsi bodonga lingaphansi kwama-20 libizwa ngepayipi lensimbi eliwugqinsi. Isetshenziswa kakhulu njengepayipi lokumba i-petroleum geological drilling, ipayipi eliqhekezayo lemboni ye-petrochemical, ipayipi elibilisa, ipayipi elithwalayo, ipayipi lesakhiwo esinembayo esiphezulu semoto, ugandaganda kanye nezindiza, njll.