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首页> 外文期刊>ACS Omega >Experimental Study on Enhanced Oil Recovery Method in Tahe High-Temperature and High-Salinity Channel Sand Reservoir: Combination of Profile Control and Chemical Flooding
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Experimental Study on Enhanced Oil Recovery Method in Tahe High-Temperature and High-Salinity Channel Sand Reservoir: Combination of Profile Control and Chemical Flooding

机译：泰地高温高盐度砂储层增强储油方法的试验研究：概况控制与化学洪水的组合

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On account of the intralayer and interlayer heterogeneity, high temperature (110 °C), and high salinity (224,919 mg/L) of Tahe channel sand reservoir, single profile control or chemical flooding cannot greatly enhanced oil recovery. The goal of the current research was to optimize a polymer gel formula that was suitable for high-temperature and high-salinity reservoirs, screen an appropriate chemical flooding method, and determine the efficiency of the combination of profile control and chemical flooding. Experimental results indicated that the formed polymer gel could maintain relatively high strength after aging for 30 days. Moreover, the combination of profile control and surfactant flooding could result in an enhanced oil recovery of 17.9%, and the combination of profile control and foam flooding could result in an enhanced oil recovery of 23.0%, which was ascribed to the improvement of sweeping efficiency and displacement efficiency. All the results indicated that the formed polymer gel and the combination of profile control and chemical flooding have great application potential in Tahe high-temperature and high-salinity channel sand reservoir.
机译：由于内际和层间异质性，高温（110℃）和高盐度（224,919 mg / L）的塔Hahe通道砂储存器，单轮廓控制或化学洪水不能大大提高采油。目前研究的目的是优化适用于高温和高盐度储层的聚合物凝胶配方，筛选适当的化学洪水方法，并确定轮廓控制和化学洪水的结合的效率。实验结果表明，形成的聚合物凝胶可在老化后保持相对高的强度30天。此外，概况控制和表面活性剂洪水的组合可能导致增强的采油率为17.9％，概况控制和泡沫洪水的组合可能导致增强的储存23.0％，这归因于综合效率的提高和位移效率。所有结果表明，形成的聚合物凝胶和型材控制和化学洪水的组合在泰地高温和高盐度通道砂储层中具有很大的应用潜力。

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