钻探工程2024，Vol.51Issue(z1)：287-291,5.DOI:10.12143/j.ztgc.2024.S1.044
甘肃杨岭铁矿区复杂地层岩心钻探技术
Core drilling technology for complex strata in Yangling iron mine area,Gansu Province
摘要
Abstract
The iron ore body in the Yangling Iron Mine area of Gansu Province is located in the fourth lithological segment of the Pingtoushan Formation of the Jixian system,which is composed of shallow metamorphic clastic rocks interbedded with muddy marble rock layers.The upper part of the strata is complete and has strong abrasiveness,while the lower part is severely fractured and leaked,exhibiting strong ferromagnetism.In response to the construction difficulties caused by the complex geological formations mentioned above,such as low drill bit lifespan,frequent accidents in the hole,and severe magnetic interference,measures such as optimizing drilling structure,selecting drilling equipment reasonably,and improving the use of flushing fluid have been taken to effectively solve the above problems.At the same time,it has played a positive role in accelerating construction progress,improving drilling efficiency,and saving construction costs.This drilling technology experience has certain reference significance for drilling construction in other strong magnetic mining areas.关键词
强研磨地层/强磁性矿区/钻孔漏失/钻孔弯曲度Key words
strong grinding formation/strong magnetism/drilling leakage/borehole curvature分类
天文与地球科学引用本文复制引用
李增梁,陈永平,穆元红,杨海云,刘海声..甘肃杨岭铁矿区复杂地层岩心钻探技术[J].钻探工程,2024,51(z1):287-291,5.基金项目
中共青海省委人才工作领导小组2022年度青海省"昆仑英才·高端创新创业人才"计划项目(青人才字[2023]1号) （青人才字[2023]1号）
青海省地质矿产勘查开发局2023年度局地质勘查项目(第一批)"青藏高原地质钻探绿色施工技术研究与应用示范"(青地矿科[2023]33号) （第一批）
