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聚合物驱油在大庆油田取得了较好效果，但在一些抽油机井上出现了不适应现象，特别是游梁式抽油机存在严重的杆管偏磨问题。油管是否发生偏磨，偏磨程度如何，哪些油管应该更换，用肉眼无法做出正确判断。为了解决这个问题，我们研制了数显超声波油管测厚仪。 一、工作原理 超
Polymer flooding in Daqing Oilfield has achieved good results, but some pumping wells have appeared not suited to the phenomenon, especially beam pumping unit there is a serious problem of tube partial wear. Tubing is partial wear, partial wear degree, which tubing should be replaced, with the naked eye can not make the correct judgments. In order to solve this problem, we have developed digital ultrasonic tubing thickness gauge. First, the working principle of ultra