大多数有关牙轮钻头井底动态的研究都是将重点放在轴向振动 (或“钻头跳动”)及其对钻头性能的影响方面。本文概述了为进一步研究牙轮钻头振动情况及其对钻头性能的影响而在一台全尺寸钻井研究钻机上所做的一些现场试验 ,在试验中观察到了三种有害振动 ,并就这些振动对机械钻速(ROP)、牙齿断裂 ,以及轴承 /密封寿命的影响进行了分析 Most of the research on roller bottom bit dynamics has focused on axial vibrations (or “bit bounces”) and their impact on bit performance. This article outlines some of the field tests conducted on a full-scale drilling rig rig to further investigate the vibration of the roller cone bit and its impact on bit performance. Three types of unwanted vibration were observed during the test. ROP, tooth breakage, and bearing / seal lifetimes were analyzed