钻探工程2025，Vol.52Issue(2)：59-64,6.DOI:10.12143/j.ztgc.2025.02.008
双聚防塌冲洗液在覆盖层钻探中的应用
The application of dual-polymer anti-sloughing flushing fluid for drilling in covering layers
摘要
Abstract
During the drilling process in the covering layer of Zhumadian area in Henan Province,the Quaternary clay layer,sandy mudstone,loose sandstone unevenly interbedded with mudstone were encountered,resluting in difficult wall protection,prone to accidents such as block jamming,hole collapse and burial,and difficult in taking cores.Based on the geological conditions and the drilling construction data within the area,the dual-polymer anti-sloughing flushing fluid was used.In the on-site application,the stability of the hole wall was good during the drilling process of the long open hole well section,without any incidents of falling or collapes.The core recovery rate can meet the geological design requirements,moreover,the casing depth and construction cost were reduced.关键词
双聚防塌冲洗液/覆盖层/松散砂岩/孔壁稳定Key words
dual-polymer anti-sloughing flushing fluid/covering layer/loose sandstone/stability of the hole wall分类
天文与地球科学引用本文复制引用
于富安,刘维平,孙健越..双聚防塌冲洗液在覆盖层钻探中的应用[J].钻探工程,2025,52(2):59-64,6.基金项目
中国地质调查局地质调查项目"东部地区战略性矿产靶区查证技术支撑(烟台中心)"(编号:DD20242961) （烟台中心）
