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油管损坏是油田生产中普遍存在的问题,随着油田不断开发、开采,油管损坏数量日益增加,给油田造成了一定的经济损失。有效预防油管损伤,延长其有效使用寿命是延长抽油机井检泵周期,降低作业成本的重要手段。通过归纳、分析有七种常见油管损伤的原因包括油管丝扣损坏、抽油杆偏磨、油管材质质量、沉没度影响、参数影响、缺少检测设备等影响因素。根据产生油管损坏的原因提出了五种相应的预防措施,即加强作业管理、提高油管质量、优化问题井设计、及时合理调整运行参数、强化井筒管理,保证施工质量达标,井筒畅通,沉没度合理,运行负荷平稳,管柱强度提升,从而避免施工质量导致的返工问题,减少杆管泵的偏磨现象,减弱振动载荷等额外附加载荷对管柱的疲劳损坏,延长管柱的使用寿命,降低油管问题的发生率。
Tubing damage is a common problem in oilfield production. With the continual development and exploitation of oilfields, the number of tubing damage is increasing day by day, causing some economic losses to the oilfield. Effectively preventing tubing damage and prolonging its effective service life is an important means to prolong the pumping cycle of pumping unit and reduce the operating cost. By inducing and analyzing, there are seven common causes of tubing damage, including the failure of tubing thread, the partial wear of tubing rod, the quality of tubing, the influence of submergence, the influence of parameters and the lack of testing equipment. According to the causes of tubing damage, five kinds of corresponding precautionary measures are put forward: strengthening operation management, improving tubing quality, optimizing well design, timely and reasonably adjusting operating parameters, strengthening well management, ensuring construction quality, smooth wellbore and reasonable submergence , The running load is stable, and the strength of the pipe string is increased, thus avoiding the rework caused by the construction quality, reducing the eccentric wear of the pipe rod pump, reducing the fatigue damage to the pipe string caused by the additional additional load such as the vibration load, prolonging the service life of the pipe string, The incidence of tubing problems.