The storage of hydrogen energy is one of the key difficulties in the efficient use of hydrogen. The most important thing for different storage methods is to establish the aisles of the hydrogen to storage space, and efficiently drill a few high-quality well holes. Compound drilling is one of the alternative technologies. However, the bit-rock interaction and the drill string-borehole interaction make the movement of bottom hold assembly more complex and increase the difficulty of well trajectory control. The vibration characteristics of drill string during compound drilling are not clear. The numerical simulation model of drill string with positive displacement motor is established by considering the bit-rock interaction, the rock failure behavior, the drill string-borehole interaction and the drill string structural. The mechanical parameters of shale for the numerical model are measured by wave velocities method. The simulation model is verified by the measuring and motoring data of axial force in the field. The rock element damage failure rate of compound drilling is greater than conventional drilling. The axial force and torque of bit of drill string in compound drilling is greater than that in the conventional drilling. The drill string is in contact with the wellbore in a more complicated way during compound drilling. The research results are benefit for optimal design of borehole quality.

氢能的存储是有效利用氢的关键困难之一。对于不同的存储方法，最重要的事情是建立氢气进入存储空间的通道，并有效地钻出一些高质量的井眼。复合钻井是替代技术之一。然而，钻头-岩石相互作用和钻柱-钻孔相互作用使底部保持组件的运动更加复杂，并增加了井眼轨迹控制的难度。复合钻进过程中钻柱的振动特性尚不清楚。考虑钻头-岩石相互作用，岩石破坏行为，钻柱-井孔相互作用和钻柱结构，建立了正排量电动机钻柱的数值模拟模型。通过波速法测量数值模型的页岩力学参数。通过现场轴向力的测量和驱动数据验证了该仿真模型。复合钻井的岩石元素破坏失败率大于常规钻井。复合钻井中钻柱钻头的轴向力和扭矩大于常规钻井中的轴向力和扭矩。在复合钻井过程中，钻柱以更复杂的方式与井筒接触。研究结果有利于优化井眼质量。复合钻井中钻柱钻头的轴向力和扭矩大于常规钻井中的轴向力和扭矩。在复合钻井过程中，钻柱以更复杂的方式与井筒接触。研究结果有利于优化井眼质量。复合钻井中钻柱钻头的轴向力和扭矩大于常规钻井中的轴向力和扭矩。在复合钻井过程中，钻柱以更复杂的方式与井筒接触。研究结果有利于优化井眼质量。