【摘要】 在分析钻进时钻头“打滑”原因的基础上，提出了利用弱包镶来解决“打滑”的思路。本文介绍了弱包镶强耐磨性胎体钻头的基本原理及使用效果。更多还原

【Abstract】 Based on the analysis of "bit walk" in drilling, a concept of using weak diamond -holding matrix to get rid of "bit walk" is introduced. This paper describes the basic principle and use of the bit with weak holding and high wear resistant matrix.更多还原