【摘要】 在石油工程作业中如何有效地向井底输送水力能量和如何充分利用井底水力能量是人们长期研究的课题。为了有效地利用井底液柱压力的水力能量 ,专门设计了一种井下水力自增流量装置 ,对装置共振腔的结构参数、射流参数、自增流量开孔位置和数量 ,以及共振条件进行了分析和实验。结果表明 ,在淹没实验条件下 ,该装置可以自增流量达 30 % ,共振腔开孔位置和数量 ,以及射流能量是关键参数。装置的两个重要特征是 :第一是可自增流量 ,第二可形成它激振荡脉冲射流 ,有效地利用了井下水力能量。该装置结构简单 ,无运动部件 ,其原理还可以在其它井下工具的研究与开发中应用更多还原

【Abstract】 In the operation of petroleum project,how to effectively convey the hydraulic energy into downhole and how to fully utilize the bottom hole energy is a subject the people have studied for a long time.In order to effectively utilize the hydraulic energy due to bottom hole fluid column pressure,a downhole device for increasing flow of itself by hydraulic pressure is specially designed and its resonant cavity structure parameters,the efflux parameters,the position and quantity of the self increasing flow taps and the resonant conditions are analyzed and tested,which show that under the submerged experiment condition,the self increasing flow of the device can reach to 30% and the position and quantity of the taps on the resonant cavity and the taps on the resonant cavity and the efflux energy are the key parameters.Two important characteristics of the device are as follows:①The flow can increase of itself and ②an oscillating pulse efflux can form and the downhole hydraulic energy can be effectively utilized.The structure of the device is simple and it has no moving component and its principle can be applied to the research and development of other downhole tools.更多还原