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抽油机井地面示功图是井下抽油泵在井下所做功的直观反映,是深井泵工作状况分析的主要依据。现场常见的抽油机井工况问题主要是泵漏失、管漏、断脱、卡泵等。而在实际生产过程中会出现不同的问题,年初发现了部分井抽油泵示功图上行程时载荷正常,下行程过程中呈弧线型的图形,并且在洗井及生产时出现不同步或卡泵现象,使抽油机井不能正常生产,产量变化下降幅度不大,沉没度略有上升的情况,经反向跟踪分析追溯鉴定为游动凡尔堵塞液流通道。
Drilling machine ground surface power diagram is a downhole pump in the work done by the intuitive reflection of the working conditions of deep well pump is the main basis for the analysis. Common scene of the pumping wells operating conditions are mainly pump loss, tube leakage, off, card pump and so on. In the actual production process there will be different problems, early part of the pump found that the load diagram of the pump when the load is normal, the next stroke was arc-shaped graphics, and in the wash and production of unsynchronized or Card pumping phenomenon, so that the pumping wells can not be normal production, output changes in small extent, a slight increase in subsidence, the reverse tracking analysis identified as a moving Versail plug flow channel.