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杆管偏磨一直是影响油井生产时率的一个主要原因,由此导致的油井检泵作业不仅导致作业成本增加,也严重影响了油井产油量并最终降低油田开发经济效益。根据现场偏磨情况,从油井井身结构、杆管受力情况、油井所处含水阶段、采油工艺等方面分析了偏磨问题产生的主客观原因,并论述了目前采油现场使用较多的防治对策及各自优缺点,可为采油现场油井防偏磨治理提供一定的参考和借鉴。
Partial eccentricity of the rod pipe has been a major factor affecting the production rate of the oil well. As a result, the operation of the oil well pump inspection not only leads to the increase of the operating cost, but also seriously affects the oil production of the oil well and ultimately reduces the economic benefits of the oilfield development. According to the situation of partial wear on the site, the subjective and objective reasons for the partial wear problem are analyzed from the well bore structure, the stress of the rod pipe, the hydration stage where the well is located and the oil recovery process, and the prevention and treatment Countermeasures and their respective advantages and disadvantages, can provide a reference for oil well anti-eccentric governance.