WT.300型钻机经过多年使用后,其井架都有不同程度的扭曲和弯曲变形,不但严重制约了钻井生产效率,还给钻井作业带来很大安全隐患。为此,我们对WT-300型钻机的变形井架进行了修复。1.井架变形的原因(1)升降缸使用不规范井架升降缸使用不规范是井架弯曲的主要原因。井架在起升或降落时速度较快,当起升或降落过程中突然停止时,在惯性力的作用下,井架便以升降缸支座为圆心,以距支座7940 mm的井架为半 After many years of use, the WT.300 drilling rig has different degrees of distortion and bending deformation, which not only seriously hampered the production efficiency of drilling, but also brought great potential safety hazard to the drilling operation. For this reason, we repaired the deformation derrick of WT-300 rig. 1. Derrick deformation reasons (1) lifting cylinder using non-standard derrick lifting cylinder is not standardized is the main reason for derrick bending. Derrick in the lifting or landing faster, when the lifting or landing suddenly stopped, under the action of inertia, the derrick will lift cylinder support for the center, with the stand 7940 mm from the derrick half