PDC Bits Used Overview in the East China Sea

PDC bits have many advantages in comparison with rock bits. The article analyses the statistics of PDC bits usage by three companies of Pinghu Drilling and Completion Team,CNOOC China Limited Shanghai and Shanghai Offshore Petroleum Bureau.By analysing the drill footage, drilling time and the rate of penetration,the article presents that PDC bits should and would be used widely in the East China Sea either in production wells and exploration wells.