混合钻头在斜井段的应用

Application of Mixed Bit in Inclined Shaft

近年来,随着长庆油田水平井的大规模开发,PDC钻头在斜井段使用过程中,仍然存在了一些影响斜井段快速钻进的因素。通过对斜井段使用的混合钻头基本情况和试验数据的分析,验证了在斜井段开发过程中,出现的一系列工具面不稳定、钻井效率低下等问题,使用混合钻头均可以使这些问题得到缓解,得到明显效益。

In recent years,with the large-scale development of the horizontal wells in Changqing Oilfield,there are still some factors affecting the rapid drilling of the inclined well section during the use of the PDC bit in the inclined shaft section.In this paper,through the analysis of the basic and experimental data of the mixed bit used in the inclined shaft section,it is clear that the type of bit can solve the problems of the instability of the tool surface,the poor compound increase slope and the low sliding efficiency in the construction of the inclined shaft.