Abstract: The 8000-meter AC variable frequency (DC) driven drilling rig, with a maximum hook load of 585 tons, is developed according to the drilling characteristics of foothill areas in Tarim Basin. The rig should a hook load of 500 tons when tripping in 273mm-diamater casing pipes. It can be electrically driven in two modes - AC variable frequency electric drive and DC electric drive - and adopts a 48-meter-high K-shaped derrick and a 10.5-meter high swing-up substructure. The winch has a new structure of two gears and four gears with a high performance. Based on the on-the-site industrial test, the rig entirely meets the need for modern drilling service in terms of performance indexes and quality indexes designed for hoisting system, rotating system, control system, power system and cycling system. The rig is superior in drilling deep wells in the foothill areas in Tarim, filling the blank for the well depth between 7000 meters and 9000 meters and perfecting the oil drilling rig family.

Key words: electric drive rig, 8000-meter, AC variable frequency, DC, compacted steel wire rope

摘要： 针对塔里木山前地区钻井特点以及下?273mm套管时需要钻机钩载达500t以上的现状,宝鸡石油机械有限责任公司研制了最大钩载为585t的8000m交流变频（直流）电驱动钻机,可用交流变频电驱动或者直流电驱动两种型式,采用48m高“K”型井架、10.5m旋升式底座,JC80DB绞车可采用2挡和4挡结构,结构新颖,性能先进。经过现场工业性验证,钻机的提升系统、旋转系统、控制系统、动力系统和循环系统设计的性能指标、质量指标完全满足现代钻井作业需要,对塔里木山前特殊井深要求表现出优越性能,填补了7000~9000m井深之间的空白,完善了石油钻机系列。

关键词: 电驱动钻机, 8000m, 交流变频, 直流, 压实股钢丝绳