f AC Drilling Rigs in Turkish Petroleum Corporation

New technologies and necessities in drilling activities lead to new designs for drilling rigs. In recent years, one of the preferred technologies is the AC (Alternating Current) which has also been started to be utilized by Turkish Petroleum Corperation. TPAO has 3 AC electrical rigs on its own inventory. The aim of this study is to outline working principles, equipment and technology of the AC Drilling Rigs, Furthermore, it summarizes the Rig upgrade experiences of TPAO starting from 2001 up to now and informs about the new developments in rig technology.