In order to reduce drilling cost, the casing drilling technique rotated by rotary table and associated tools were developed considering the actual condition of domestic onshore drilling tools.
根据国内陆上油田钻井装备的实际状况，本着降低钻井成本的目的，研究出了采用转盘驱动的适用于陆上油田浅开发井的简易套管钻井技术及其配套工具。
Lower device ~ lower casing, charger inlet, tail shaft assembly, tensioner, and with optional rotary detector and level switch.
下部装置——包括下部机壳、进料口、尾轴装配、张紧装置，并有旋转探测仪、料位开关供选配。
The configuration and principle of anti rotary plug and necessary float collars and their applications in intermediate casing cementing are introduced.
介绍了防转胶塞及配套浮箍的结构、原理和在技术套管固井中的应用情况。
The gas-liquid separator for rotary compressor includes a gas-liquid separator casing with certain inside space and upper end connected to the refrigerant pipe;
本发明公开了一种旋转式压缩机的气液分离器装置，包括具 备一定的内部空间的气液分离器，其上端连接制冷剂管的壳体；
The rotary shaft supporting structure of scroll compressor includes a casing with closed inside space and lower pedestal;
本发明是关于一种卷轴压缩机的旋转轴支撑结构，其包括箱子，它的内部形成封闭空间，并在下端具有底座；
The rotary shaft supporting structure of scroll compressor includes a casing with closed inside space and lower pedestal;
本发明是关于一种卷轴压缩机的旋转轴支撑结构，其包括箱子，它的内部形成封闭空间，并在下端具有底座；
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