针对小岩心物理模拟实验不能模拟水平井井网方式对水驱效果影响的问题,开展了模拟储层条件下的能在高温、高压下通过改变管线不同切口变换井网方式的水平井大岩心物理模拟室内试验,研究了水平井-水平井交错井网、水平井-水平井平行井网、直井-水平井交错井网、直井-水平井平行井网、直井-直井井网这5种不同的水平井井网类型的水驱油规律及剩余油分布特征,并建立了数值模拟预测模型进行对比、验证.结果表明:在渗透率级别相同的情况下,对比5种井网类型,水平井-水平井交错井网驱油效率最高,剩余油分散.水平井大岩心物模实验所得出的对水平井井网和直井井网的对比分析结论对指导油田现场井网的部署具有重要意义.%To solve the problem of the effect of horizontal well pattern on the water flooding effect, a simulationmodel of large core horizontal well under simulated high temperature and high pressure under different reservoir conditions test was carried out.Five different levels of injection-production patterns of water flooding and pattern of remaining oil distribution in well pattern including horizontal wells-horizontal wells staggered well pattern, horizontal wells-horizontal wells parallel well, vertical wells-horizontal wells staggered well pattern, vertical wells-horizontal wells parallel well, vertical wells-vertical wells were studied.Based on the laboratory experiments, a numerical simulation model was established to compare and verify.The results show that, in the case of the same permeable grade, the oil displacement efficiency of the horizontal well-staggered horizontal well pattern is higher than that of the horizontal well-staggered horizontal wells, and the remaining oil is dispersed.The comparison and analysis of horizontal well pattern and vertical well pattern obtained by the experiment of large well core in horizontal well is of great significance to guide the deployment of oil field well pattern.
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