抽油机是煤层气井场最重要的举升设备。抽油机在长期使用过程中,出现了各种各样的故障,这些故障不仅影响了煤层气井的连续排采,还带来了较大的安全隐患。研究抽油机故障出现的根本原因,并找出科学的对策。将这些故障及对策进行系统性的整理,为今后故障防范和后期产能建设时抽油机的选用提供借鉴。 Pumping unit is the most important lifting equipment for CBM well field. During the long-term use of the pumping unit, a variety of faults have occurred. These faults not only affect the continuous drainage of coalbed methane wells, but also bring about great potential safety hazards. Study the root causes of pumping unit failure and find out the scientific countermeasures. These failures and countermeasures are systematically sorted out to provide reference for the selection of pumping units for future failure prevention and post-production capacity building.