间抽井耗能影响因素分析

Analysis of influencing factors on energy-consumption for intermittent pumping well

为了对不同产液、不同供液能力的间抽井量体裁衣,制定合理的间抽制度,进行了间抽井耗能影响因素分析。通过监测油井产量和能耗随环空动液面、沉没度、间抽时间及启停次数的变化情况,得出油井吨液耗电的变化规律。动液面变化对间抽井耗电量的影响不大,间抽节电量大小取决于停机时间;对间抽井液量影响少、节电量多,应采取大参数运行且多次启停间抽方式。

In order to produce different solutions for intermittent pumping wells with different fluid production and different pumping capacity, we need to develop a reasonable intermittent pumping system, so we make an analysis of influencing factors on energy-consumption for intermittent pumping wells.The changing rule of electricity-consumption for oil well can be obtained by monitoring the oil production and energy- consumption changing with the annulus dynamic fluid level,submergence depth, intermittent pumping time and the start-stop change times. After analyzing,we believe that the fluid level has little effect on electricity- consumption of intermittent pumping wells, and electricity- saving depends critically on downtime. In order to have less affect on the amount of fluid and save more power, we need to choose larger parameters operation and take more start- stop times. The study provides basics for comparison and optimization of intermittent pumping.