水平定向钻管道穿越技术的最新发展

发布时间：2018-12-18 13:05

【摘要】：为了实现更大管径、更长距离的管道穿越,提高我国水平定向钻的穿越施工能力和装备水平,对国内外水平定向钻管道穿越技术的最新发展情况进行分析,总结了近几年国内外大型水平定向钻穿越工程和采用的新工艺、新装备,目前水平定向钻管道穿越技术开始向大型工程、大型钻机和大型钻具的方向发展。研制开发了最大回拖力高达1 500 t的水平定向钻机,壁厚为一般钻杆厚度两倍的厚壁钻杆,杆体直径为244 mm的钻杆,机动灵活的模块化钻机,用于硬岩地层的PDC钻头和PDC扩孔器牙轮等水平定向钻新装备。此外,水平定向钻正向扩孔技术也得到越来越多的应用。这些最新发展对于促进我国水平定向钻施工技术与装备水平的提高和业务发展具有重要的指导意义。
[Abstract]:In order to realize the pipeline crossing with larger diameter and longer distance and improve the construction ability and equipment level of horizontal directional drill in China, this paper analyzes the latest development of horizontal directional drilling pipe crossing technology at home and abroad. This paper summarizes the new technology and equipment used in the large horizontal directional drilling crossing project at home and abroad in recent years. At present, the horizontal directional drilling pipeline crossing technology is beginning to develop towards the direction of large engineering, large drilling rig and large drilling tool. A horizontal directional drilling rig with maximum backhaul power up to 1 500t was developed, with a wall thickness of twice the thickness of a normal drill pipe, a drill pipe with a diameter of 244 mm and a flexible modularized drill rig. New horizontal directional drilling equipment such as PDC bit and PDC reaming gear used in hard rock formation. In addition, the horizontal directional drill forward reaming technology is also getting more and more application. These latest developments have important guiding significance for promoting the improvement of construction technology and equipment level and business development of horizontal directional drilling in China.
【作者单位】：中国石油天然气管道科学研究院有限公司;中国石油管道局工程有限公司科技中心;
【分类号】：TE973.4

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