煤气与热力2024，Vol.44Issue(8)：后插6-后插9,4.
定向钻穿越黄河卵石层施工工艺
Construction Technology for Directional Drilling Crossing Pebble Layer of Yellow River
胡周海 1夏冰峰 1赵青松 1郝蕴华 1刘艳华1
作者信息
- 1. 北京市公用工程设计监理有限公司,北京 100000
- 折叠
摘要
Abstract
The construction technology of direc-tional drilling crossing the pebble layer of the Yellow River in the Boai-Luoyang coalbed methane pipeline project is summarized.For directional drilling crossing the pebble layer,casing can be used to isolate the peb-ble layer,and the casing can be pushed into the rock layer to ensure the stability of the pebble layer during construction.For the long-distance rock layer crossing,dual drilling machines are used to drill guide holes and connect them within the rock layer.The power reamers are used for simultaneous reaming with dual drilling machines to ensure smooth hole walls and smooth pull-back.The mud configuration is optimized,the mud wa-ter loss is reduced,the mud wall protection,lubrica-tion,and affinity with formation drilling cuttings are en-sured,it is ensured that drilling cuttings are wrapped in mud colloids,and the formation of drilling cuttings beds is prevented.Environmentally friendly additives and plugging agents are added to the mud to change the rheological properties of the mud,so that the rheologi-cal parameters of the mud can meet the requirements of preventing mud leakage and effectively carrying drilling cuttings.At different drilling stages,different mud dis-placements and drilling construction techniques are a-dopted to avoid the occurrence of mud running,leak-age,and mud leakage during the drilling process.关键词
定向钻/卵石层/套管/双钻机扩孔/泥浆配置Key words
directional drilling/pebble layer/casing/reaming with dual drilling machines/mud con-figuration分类
建筑与水利引用本文复制引用
胡周海,夏冰峰,赵青松,郝蕴华,刘艳华..定向钻穿越黄河卵石层施工工艺[J].煤气与热力,2024,44(8):后插6-后插9,4.
