钻探工程2024，Vol.51Issue(5)：115-121,7.DOI:10.12143/j.ztgc.2024.05.014
小秦岭金矿田3500 m特深孔冲洗液技术
The drilling fluid technology of 3500m extra-deep hole in Xiaoqinling Gold Field
摘要
Abstract
The 3500m extra-deep hole(ZK001 hole)in Xiaoqinling gold mine field is located in Lingbao City,Henan Province.It is the first full-hole continuous coring extra-deep hole in the Xiaoqinling tectonic belt.The formation lithology of this hole is very complicated,with soft,hard and broken strata appearing interactively,and the wall protection is extremely difficult.There are many complicated conditions in drilling,such as hole wall collapse,block loss,hydration decomposition and pulping,high in-situ stress gouge shrinkage and micro-fracture water loss.In this paper,the flushing solution system is adjusted according to the formation changes.The upper part uses low solid phase flushing solution and the lower part uses low solid phase polymer anti-collapsing flushing solution system.The flushing solution formula is constantly optimized,the performance parameters are timely maintained and adjusted,and various problems in the hole are effectively solved.It provides a reliable flushing fluid technology for deep hole core drilling in Xiaoqinling area.关键词
特深孔/复杂地层/聚合物防塌冲洗液/高地应力/缩径/断层泥Key words
extra-deep hole/complex strata/polymeric anti-collapse drilling fluid/high in-situ stress/hole shrinkage/fault gouge分类
天文与地球科学引用本文复制引用
王鹏飞,郭曜欣,翟育峰,王鲁朝,杨芳,宋宝杰,王修晖..小秦岭金矿田3500 m特深孔冲洗液技术[J].钻探工程,2024,51(5):115-121,7.基金项目
河南省财政地质勘查项目"河南省灵宝市小秦岭金矿田南中矿带深部探测"(编号:2020-18-06) （编号:2020-18-06）
河南省地矿局局管地质科研项目"小秦岭金矿田复杂地质条件下3500 m深孔钻探工艺研究"(编号:202201) （编号:202201）
山东省地矿局局控科技创新项目"3000 m超深科学钻探关键技术研发应用"(编号:KY202102) （编号:KY202102）
山东省地矿局2022年度科技攻关项目"深孔地质岩心钻孔轨迹控制技术研发及应用"(编号:KY202205) （编号:KY202205）
