国外轻型液压钻机井口承重装置技术现状及发展趋势

The Technical Status And Development Trend Of The Well-head Bearing Equipment of The Foreign Light-weight Hydraulic Drilling Rigs

井口承重装置作用是在接卸单根时,承受井内钻具重量,并承受上卸扣一定反扭矩。不同于常规钻机平台卡瓦结构,轻型液压钻机井口承重装置一般采用原理简单、外形紧凑、安装快速结构形式,或者直接集成在钻机井架上,随车一起运移。本文对目前国外轻型液压钻机井口承重装置结构做简要介绍,分析其工作原理,并指出其发展趋势:向一体化方向发展、向多功能方向发展、向自动化方向发展。

When making a connection or the reverse, the well--head bearing equipment can load the weight of the boring tool in the well, and can overcome some reactive torque. Unlike the structure of the plat{otto and slip of the usual drilling rig, the well--head bearing equipment of the light--weight hydraulic drilling rig is the simple principle, the compact externality,the fast installation, or it is integrated in the derrick and carried with the derrick., the intent of this chapter introduces the structure and working prin- ciple of the well head bearing equipment of the foreign light--weight hydraulic rigs, and indicates that the development trend is corporate,multifunctional and automated.