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为提高油井产量,解决含水过高,含水上升速度快等问题,提出氮气泡沫堵水调剖技术。并在区块内优选氮气泡沫实验区进行了数值模拟研究,在此基础上对工作制度、氮气泡沫注入方式、注入量等因素进行了优化。研究认为,对于胜坨油田这种高温高盐砂岩油藏,氮气泡沫堵水调剖技术具有一定的控水增油效果。
In order to improve the production of oil wells, solve the problems of high water cut and fast rise of water cut, a nitrogen foam blocking water profile control technology is proposed. The numerical simulation of nitrogen foam in the experimental zone was carried out. Based on this, the factors such as working system, injection method of nitrogen foam and injection amount were optimized. The study shows that for the high-temperature and high-salt sandstone reservoirs in Shengtuo Oilfield, the technology of nitrogen foam water plugging and water profile control has a certain effect of controlling water and oil.