jetting method of drilling

the horizontal spiral drilling method and then presents its application into the construction of a small-diameter concrete pipeline.

文章简要介绍了一种小口径管道非开挖施工技术——水平螺旋钻进法,并结合工程实例,介绍了该法在小口径钢筋混凝土排水管道施工中的应用。

The Application of Horizontal Drilling in Cable Laying across Highway;

水平钻进非开挖铺管技术在高速公路中的应用

This paper presents the main content of radial horizontal drilling technology, the applicable condition and the factors considered when designing depth and extended direction of the well, and discussed about section milling, reaming, horizontal drilling process, technology parameter and technology principle in W5 well.

介绍了径向水平井技术的主要内容、适用条件及设计径向水平井眼深度和方位时应考虑的因素,论述了W5井现场施工中的套管段铣、井下扩眼、水平钻进的工艺过程、技术参数及技术原理。

This article introduces a horizontal drilling device for the removal of the coagulated slurry in drilling pipes.

清理钻杆中凝固水泥时 ,因孔洞较深 ,需要有强度较高的传动器械和特殊的动力装置 ,为此 ,设计了清理钻杆中凝固水泥水平钻进装置。