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钻孔的弯曲度是衡量钻探工程质量的指标之一，又是目前钻探工程中经常遇到的严重问题之一。作者根据在地质部304勘探队勘探锦屏磷矿时收集的资料，提出孔斜的规律性供大家讨论。分析所有产生孔斜的原因，可以归纳为三方面：1．由复杂的地质条件而引起的；2．技术装备方面的原因；3．钻进工艺方面的原因。
The curvature of the borehole is one of the indicators to measure the quality of the drilling project and one of the serious problems often encountered in the drilling project. Based on the data collected during the exploration of Jinping Phosphate Mine by the 304 exploration team of the Ministry of Geology, the author put forward the regularity of hole inclination for discussion. Analysis of all the causes of hole oblique, can be summarized into three aspects: 1. Caused by complex geological conditions; 2. Technical equipment reasons; 3. Drilling technology reasons.