Drilling is an important part during oil and gas exploration and development. As the key part of drilling equipment, the load capacity of the drilling mast is closely related to the safety of the whole drilling rig system.

• 钻井是石油天然气勘探与开发的一个重要环节,钻机井架作为钻井设备的关键部分,其承载性能直接关系到整套钻机系统的安全运行。