电动钻机步进式平移结构应力监测及强度分析

步进式平移可实现钻机前后左右整体移动，具有移动快速、操作便捷的特点，在丛式井组中应用广泛。针对 在役电动钻机加装步进式平移装置后，能否满足满立根情况下钻机整体平移的问题，开展了钻机平移结构应力监测试 验研究，以川庆钻探公司一台ZJ50DBS 钻机为研究对象，通过有限元分析找出钻机平移时结构受力较大部位的应力 监测点，在钻机无立根工况下进行钻机平移应力监测，再在试验数据分析结果基础上，以强度校核结果为目标值，对钻 机结构有限元模型进行修正，最后在修正模型上施加满立根载荷进行钻机整体平移受力分析。分析结果表明，该钻机 在底座安装步进式平移装置后，能够满足在满立根情况下的安全平移。

Monitoring and Intensity Analysis of Structural Stress of Electric#br# Rig Step-moving

The step-moving can realize the all-round moving of rigs with the feature of fast moving and convenient operation， so it is widely applied in cluster wells. In order to understand if the in-service electric rig installed with step-moving device can settle the problem of rig all-round moving with full stand，a structural stress monitoring and test of rig moving is carried out. In this paper，a ZJ50DBS rig of CDEC is the research subject，finite element analysis is adopted to identify parts of the rig structure bearing larger force when lifting，and regard them as the stress monitoring points. Then the rig moving stress monitoring is done in the condition of no stand. Based on the data analysis，strength check results are the target，and rig structure finite element model is modified. Finally，the full stand load is applied to the modified rig model，and then stress is analyzed. The results show that the rig after installation of step mobile device，is of sufficient strength to move at full stand condition.