摘要
结合工程实例,探讨长距离天然气管道定向钻穿越岩石层的钻机及钻具类型选择、泥浆配比设计、工艺流程及关键工艺控制措施,分析施工过程的难点——扩孔台阶,给出扩孔台阶的解决措施。
The selection of drill anti drilling tools types, the design of mud ratio, the technical process and the control measures of tile key technologies are discussed combined with an engineeling example. The difficult point during the construction, namely hole enlargement step is analyzed,anti the solutions are provided.
出处
《煤气与热力》
2016年第7期34-37,共4页
Gas & Heat
关键词
高压天然气管道
非开挖
定向钻穿越
岩石层
扩孔台阶
high pressure natural gas pipeline trenchless directional drilling crossing rock laver： hole enlargement step
