摘要
注水开发是油田开发的第一选择。本文通过试验着重分析了指示曲线方法在注水开发过程中的失效原因,总结出水嘴总压损失随流量变化规律。同时,考虑真实油藏下任意井网排布,推导了注水层井底压力与流量随时间变化的关系,提出了瞬时指示曲线分析方法指导流量调配,既满足了油田注水的基本要求又把注水成本控制在合理的范围内。现场试验结果表明,该方法准确、简单、可靠,很好地满足了工程实际的需要,减轻了调配人员的工作强度和工作时间。
Water injection is the most widely used option in oil field exploitation. In this paper, via experiments, the slop analysis used in water injection operation was analyzed to find the reason of slop analysis invalidation. In addition, the regulation of nozzle pressure loss related to water flux was also acquired in experiments. On the basis of these studies, considering arbitrary well network model, the relation between downhole pressure of injection layer and flux was deduced. As a result, a new method called transient slope analysis was proposed, which aimed to meet the requirement of water recovery and had a reasonable cost on water injection. This method is proved to be accurate, simple and reliable via experiments. By applying this method, the intensity of flow adjustment is relieved and the working time is shortened.
出处
《实验力学》
CSCD
北大核心
2008年第6期511-519,共9页
Journal of Experimental Mechanics
基金
国家973资助(2006CB705805)
国家自然科学基金(10672159、10702069)联合资助
关键词
注水井
瞬时指示曲线
分层流量调配
水嘴优化
水嘴压力损失
injection well
transient slope analysis
flow adjustment
nozzle optimization
pressure loss of nozzle
