摘要
Nowadays, China's drilling equipment manufacturing has formed into a sophisticated industrial chain, playing an indispensable role in supporting China's petroleum industry. Especially in recent years, apart from satisfying the requirements of domestic onshore drilling operations, the state-of-the-art drilling equipments like offshore modular drilling rigs, 9000 meter ultra-deep rigs have also been successfully manufactured, this, together with the wholesale export of electric drilling rigs to the overseas market, has ranked China as a primary manufacturer of drilling equipments in the world. China can now wholesale produce series of onshore and offshore drilling equipment with rig production of nearly 200 per year. The production capacity accounts for 20%-25% of the world total. In addition to satisfying domestic market, China made onshore drilling rigs have also gained great competitive advantages in the international market.