一、我国石油钻机的发展与现状 解放前我国是不能制造钻机的,解放后仿造了苏联的БУ-40钻机与5Д钻机,后来又改型为130钻机和大庆Ⅰ型钻机。这几种钻机的结构与性能都很落后。 六十年代初,我国曾经试制过一台额定起重最为75吨的链条钻机(指链条并车的钻机,下同),但是由于链条寿命太短,没有定型生产。 First, the development and status quo of China’s oil drilling rig Before liberation, China can not manufacture drilling rigs. After the liberation, the Soviet Union’s БУ-40 drilling rig and 5Д drilling rig were imitated. Later, the drilling rig was rebuilt to 130 drilling rigs and Daqing Type Ⅰ drilling rigs. These types of rig structure and performance are very backward. In the early 1960s, China had trial-produced a chain rig with a maximum capacity of 75 tons (referring to the chain and car drilling machine, the same below), but due to the short chain life, there was no stereotyped production.