【摘要】 目前我国东部陆上油田大部分已进入特高含水采油期,绝大多数油井综合含水率已超过85%,部分油井已达到95%。油-气-水三相流型是特高含水混输技术界限确定、水力热力计算方法研究及集输系统科学运行管理的基础。为了研究大庆低渗透油田环状集输水平管道内油-气-水三相流型,研制一套流型试验装置,进行了一系列试验研究,获得了1360组油气水三相流型图及相应的流动参数。对采集到的流型及试验数据进行分析,首次总结出水平环状集输管道中油-气-水三相流的五种流型,分别为分层流、三层扰动流、波浪冲击流、气弹掺混流和完全掺混流。同时给出了每种流型对应的参数范围,并对每种流动形态及典型特征进行了解释。更多还原

【Abstract】 At present,with deeply exploitation of the oil field in the eastern land of China,the water-cut of most oil wells exceeds by 85%,and some have even reached 95%.The flow pattern study on oil-gas-water three-phase flow is the basis for determining mixed transportation limits with super high water-cut,researching of hydro-thermal calculation method and scientific operation management of gathering and transferring system.We developed a certain set of test device in Daqing oil field with a series of experiments.1360 group of oil-gas-water three-phase flow pattern photographs and the corresponding flow parameters have been acquired.Five flow patterns are summarized in horizontal circular gathering and transferring pipeline for the first time.Including stratified flow,three-layer disturbed flow,wave surging flow,gas bombs mixing flow and complete mixing flow.We gave the range of corresponding parameters to each flow pattern,and explained the typical character of each flow pattern.更多还原