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大庆油建科研所成功地研制出直径48～109mm小口径管道内补口机，通过0.8km管道的现场施工证明，各项技术指标均达到设计要求，具有设备轻便、操作容易等特点。本文报道了该补口机的技术指标、工艺流程、结构、工作原理及现场应用实例。
Daqing Oilfield Scientific Research Institute successfully developed a small diameter pipe diameter of 48 ~ 109mm pipe filling machine, through the 0.8km pipeline on-site construction proved that the technical indicators have reached the design requirements, with equipment, light, easy to operate and so on. This paper reports the technical specifications, process, structure, working principle and field application examples of this machine.