摘要
抽油机井集流式涡轮流量计录井的频率响应随抽油泵冲次周期性变化,给测试取值造成困难。我国早期采用停抽法,随着环空测井推广,发现生产压差小,采液指数大的井不宜用停抽法。本文分析了产生振荡状曲线的主要原因,对几种取值方法的原理、操作方法、注意事项及应用范围进行了讨论。理论和实践均证明停抽法、面积法和计数法可行,可供环空测井及抽测法测井参考。
Frequency response of logs from packer type flowmeter in pumping wells, varies periodically with stroke number of pump. As the annular logging is widely used, it is found that shutting down pumping method used early is not available for the wells which have low production pressure differences and large productivity index. This paper discusses the main causes of generating oscillation curves, some principle of data acquisition, operation methods, and their application range. In practice, shutting down pumping, area and counting methods have been proven as valid and they are also available for reference in both annular logging and pumping logging.
