地质装备2024，Vol.25Issue(3)：36-40,5.
坚硬打滑地层钻进技术研究
Research on the drilling technology in hard slip formation
刘兵 1朱恒银 1王强 2王萍 3程红文4
作者信息
- 1. 安徽省地质矿产勘查局313地质队,安徽六安 237010||安徽理工大学地球与环境学院,安徽淮南 230001
- 2. 安徽工业经济职业技术学院,安徽合肥 230051
- 3. 安徽省地质矿产勘查局313地质队,安徽六安 237010
- 4. 建设综合勘察研究设计院有限公司,北京 100007
- 折叠
摘要
Abstract
Rocks with high hardness and low abrasiveness are commonly referred to as slippery formations.Due to the fine grain size,dense structure,high quartz content or high degree of silicification of the rock-forming minerals,these formations have the characteristics of high hardness with a rock drillability of 9 to 12 and a rock indentation hardness of 5000 to 7000 MPa.In slippery formations,the matrix of diamond drilling bit is difficult to wear,diamonds are not easily exposed,so the drilling efficiency and the rate of penetration is low,which is a major technical challenge for diamond drilling technology.Based on the analysis of formation slippery causes,this study conducted research on the optimization of diamond bit parameters and drilling parameters,and explored the drilling core technology for hard and slippery formations.This technology was applied in four drilling holes for the main ore layer of Li Lou ore district in Huoqiu.The application results showed that the average drilling speed increased from 0.35 m/h to 0.45 m/h,and the average rate of penetration increased from 0.65 m to 0.88 m,improved by 29％and 35％respectively,achieving good application results.关键词
坚硬地层/打滑地层/钻进技术/金刚石钻头Key words
hard formation/slip formation/drilling technology/diamond drilling bit分类
天文与地球科学引用本文复制引用
刘兵,朱恒银,王强,王萍,程红文..坚硬打滑地层钻进技术研究[J].地质装备,2024,25(3):36-40,5.
