This paper introduces several common packedhole and well straightening assemblies.
本文介绍了几种常用防斜、纠斜钻具组合。
2
In this article, the principal factors affecting hole curvature are analysed, the principle of anti-deflecting packedhole assembly design is discussed.
本文分析了影响井眼曲率的主要因素，论述满眼防斜钻具组合设计的原则。
3
Once at the tracking station, Greg reached into the tiny hole and packed grease around the failed bearing.