探矿工程-岩土钻掘工程Issue(5)：77-79,84,4.
煤矿井下硬岩定向钻进 PDC 钻头选型及试验分析
Selection of PDC Bit for Directional Drilling in Hard Rocks of Coal Mine and the Test Analysis
金鑫 1杨忠 1冯武宏1
作者信息
- 1. 中煤科工集团西安研究院有限公司，陕西西安710000
- 折叠
摘要
Abstract
Based on the analysis on the requirements of PDC bit structure, 3 different types of PDC bit were selected for hard rocks directional drilling tests in underground coal mine in order to improve the drilling efficiency.The test results show that the flat-bottom PDC bit is not suitable for directional drilling in hard rock, the three-wing parabolic PDC bit and the four-wing straight angle PDC bit show the adaptability in hard rock directional drilling with long service life and high ef-ficiency.关键词
定向钻进/PDC钻头/硬岩/高效率Key words
directional drilling/PDC bit/hard rocks/high efficiency分类
天文与地球科学引用本文复制引用
金鑫,杨忠,冯武宏..煤矿井下硬岩定向钻进 PDC 钻头选型及试验分析[J].探矿工程-岩土钻掘工程,2015,(5):77-79,84,4.
