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阐述了套压降低法测泵口压力和井底流压的基本原理、测试方法以及相关的资料处理和计算方法。该测压方法不受现场条件的限制， 具有显著的经济效益， 易于在油田中推广应用。现场实际应用表明方法简单， 并克服了油套环空泡沫段的影响， 测试精度能满足现场应用要求。
The basic principle, test method, relevant data processing and calculation method of pressure drop method for measuring pump port pressure and bottom hole flow pressure are described. The pressure measurement method is not subject to site conditions, with significant economic benefits, easy to promote the application in the oil field. The practical application shows that the method is simple and overcomes the influence of the annular foam section of the oil jacket. The test precision can meet the requirements of the field application.