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利用能量法推导出斜井眼中具有初弯曲管柱稳定的轴向临界压力计算公式，讨论了初弯曲对轴向临界压力的影响。研究表明，轴向临界压力随初弯曲最大挠度的增大而减小，初弯曲对临界压力的影响随管柱所受侧向力的增大而增大，随管柱长度的增加而增加。当初弯曲最大挠度比较大时，对于受侧向力作用的较长管柱，初弯曲对管柱轴向临界压力影响很大，必须加以考虑。
Using the energy method, the formula of the axial critical pressure with the first curved column in the deviated well is deduced, and the effect of the initial curve on the critical pressure in the axial direction is discussed. The results show that the axial critical pressure decreases with the increase of the maximum deflection of the initial bending. The influence of the initial bending on the critical pressure increases with the increase of the lateral force of the pipe string, and increases with the length of the pipe string. When the maximum bending deflection is relatively large at the beginning, the initial bending has a great influence on the axial critical pressure of the column due to the long lateral force, which must be considered.