摘要
阐述沁阳-济源煤层气输气管道工程的工程概况、沁河的工程地质条件,分析定向钻穿越的施工工艺难点、工艺流程、主要施工设备,研究了定向钻穿越卵石层和双钻机钻导向孔并对接的施工工艺。
The general situation of the Qinyang-Jiyuan coal bed methane pipeline project and the engineering geological condition of Qinhe River are described. The construction difficulties, process flow and main construction equipment of directional drilling crossing are analyzed. The construetion technologies for direction drilling crossing the gravel layer and drill- ing the pilot holes by two drilling machines and their docking are studied.
出处
《煤气与热力》
2015年第1期39-42,共4页
Gas & Heat
关键词
定向钻
卵石层
套管隔离
导向对接
direction drilling
gravel layer
easing pipe isolation
pilot hole docking
