论文部分内容阅读
本文介绍了黄河输气管道穿越复线的水上钻探经验,报导了克服诸如黄河水流速度大、钻探船定位、钻进中涌沙、缩径等影响钻探工作的困难。
This paper introduces the water drilling experience of the Yellow River gas transmission pipeline crossing the double track and reports the difficulties of overcoming the drilling work such as the large flow velocity of the Yellow River, the positioning of the drilling vessel, the sand pouring during the drilling, and the diameter reduction.