钻探工程2025，Vol.52Issue(z1)：305-309,5.DOI:10.12143/j.ztgc.2025.S1.048
莱芜富铁矿区钻孔漏失特征及应对措施
Characteristics and contermeasures for drilling leakage in Laiwu iron-rich mining area
摘要
Abstract
The regional geological structure of the Laiwu iron-rich mining area in Shandong is well-developed,with complex and diverse stratigraphic lithology.Influenced by factors such as geological tectonic movements and groundwater activities,various leakage channels have formed.Severe drilling fluid leakage,frequent accidents such as drill burning,sticking,and breaking occur in the area,leading to high construction difficulty and costs.During the core drilling of three boreholes,multiple formation leakage issues were encountered,including groundwater flow channel leakage,fissure leakage,and karst cave leakage.On-site research on plugging countermeasures was carried out,and the drilling tasks were successfully completed by adopting methods such as simultaneous drilling and plugging,stop drilling for plugging,and drilling against leakage.This has accumulated experience for solving complex formation leakage problems in the Laiwu area.关键词
岩心钻探/破碎地层/岩溶地层/漏失特征/堵漏/莱芜富铁矿区Key words
core drilling/fractured formation/karst formation/leakage characteristics/plugging/Laiwu iron-rich mining area分类
天文与地球科学引用本文复制引用
于富安,党智财,刘维平,孙健越,王立志,张坤,高金华,闫昱昊,朱应昌,隗德祥..莱芜富铁矿区钻孔漏失特征及应对措施[J].钻探工程,2025,52(z1):305-309,5.基金项目
中国地质调查局地质调查项目"胶东成矿带战略性矿产调查"(编号:DD20243399)、"东部地区战略性矿产靶区查证技术支撑(烟台中心)"(编号:DD20242961) （编号:DD20243399）
