地质与勘探2017，Vol.53Issue(4)：794-800,7.
南非Bishop锰矿区钻探方法的应用探讨
Application of Drilling Technology in the Bishop Manganese Ore Mining Area， South Africa
常洪伦 1洪光 2陈晓红 3贾三石 3马凯波 1李建峰 1文鹏1
作者信息
- 1. 华北有色工程勘察院有限公司,河北石家庄 050021
- 2. 中化地质矿山总局化工地质调查总院,北京 100013
- 3. 东北大学秦皇岛分校,河北秦皇岛066004
- 折叠
摘要
Abstract
The stratum sequence in the Bishop manganese ore mining area of South Africa is stable with broken rocks in the lower part,which leads to low speed and high cost of core drilling.In order to find a more suitable combination of drilling manners,an experiment was conducted in the mine area,in which core drilling was made at the hole ZK17-01,compared with air reverse circulation (RC) drilling at the nearby hole RC17-01.The result shows that the RC drilling has a better quality which can meet the requirement of geological logging.The average drilling speed of RC is nine times that of core drilling,while its cost is only one third of the latter.Therefore it is feasible to start with RC-starting and then core drilling when ore is encountered in the hole.Such a combination of drillings can enhance the overall drilling speed,lower the cost and reduce drilling accidents due to broken rocks.关键词
南非/Bishop锰矿区/反循环/对比试验/优化Key words
South Africa/Bishop manganese ore mining area/reverse circulation/comparison/optimize分类
天文与地球科学引用本文复制引用
常洪伦,洪光,陈晓红,贾三石,马凯波,李建峰,文鹏..南非Bishop锰矿区钻探方法的应用探讨[J].地质与勘探,2017,53(4):794-800,7.
