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辽河油田茨榆坨采油厂采用一种新型管道连接机具,可在管道内或其周围有油气等易燃易爆物质而又不能移动原管道的情况下,完成管道的加接或改装。 这种新型工具(见下图),由前卡具副
The Liaohe Oilfield Tiyu Tuo Oil Production Plant adopts a new type of pipeline connection equipment that can complete the pipe connection or modification under the circumstance that flammable and explosive substances such as oil and gas exist in or around the pipeline but can not move the original pipeline. This new type of tool (see picture below), by the front chuck vice