LZ900/73-3500型连续管复合钻机研制

现有的连续管钻机不能使用常规管柱进行作业。依托国家科技重大专项课题,研制了LZ900/73-3500型连续管复合钻机,突破了轻量化注入头、下沉式滚筒、三折叠液压导向器、伸缩式门型井架、电液一体化集成控制系统等关键技术。现场试验表明,该钻机既可使用连续管,也可使用常规管柱,可进行钻前准备、井筒处理、钻进以及钻后完井作业。采用模块化结构,一体化运行,提高了侧钻井全过程的作业效率,并降低劳动强度、节省成本。

Development of the LZ900/73-3500 Hybrid Coiled Tubing Rig

The existing coiled tubing rig cannot operate with the conventional pipe. Depending on the state key technological research project, the LZ900/73-3500 hybrid coiled tubing rig was developed. In the process of the rig development, several key technologies were achieved, such as a lightweight injector, sunken CT reel, three-fold hydraulic gooseneck, telescopic gate-type derrick, and electro-hydraulic integration control system. Field tests show that the rig can use coiled tubing and conventional pipe for pre-drilling preparations, wellbore treatment, drilling, and completion. The integrated operation of equipment improves the efficiency of the whole process of sidetracking, reduces equipment replacement, and reduces labor intensity and cost, satisfying the design requirement.