请大家帮忙翻译一下文献摘要.谢谢!The cores from the chalky Shuaiba formation were saturated with brine and oilflooded to restore the initial reservoir condition after cleaning. Nineteen samples were waterflooded followed by dilute surfa

请大家帮忙翻译一下文献摘要.谢谢!The cores from the chalky Shuaiba formation were saturated with brine and oilflooded to restore the initial reservoir condition after cleaning. Nineteen samples were waterflooded followed by dilute surfa
请大家帮忙翻译一下文献摘要.谢谢!
The cores from the chalky Shuaiba formation were saturated with brine and oilflooded to restore the initial reservoir condition after cleaning. Nineteen samples were waterflooded followed by dilute surfactant injection. Eight samples were flooded with dilute surfactant. The reason for this scheme is that some parts of the reservoir under study were totally watered out while others are still untouched. In addition to these experiments, nine capillary (static) imbibition experiments were conducted to treat fractured zones where recovery by capillary imbibition during injection is a possibility. Twelve different surfactants (at different concentrations) were tested. Five surfactants were non-ionic, two cationic, four anionic, and one was a mixture of anionic and non-ionic. The selection of the optimum concentrations was based on IFT values at different concentrations.
The results were evaluated in terms of the final oil recovery. The average waterflooding recovery was found to be 75.1% of OOIP (out of 19 experiments) whereas surfactant injection yielded an average of 69.9% of OOIP (out of 8 experiments). This indicates that the surfactant injection is not preferable and not recommended over waterflooding for the untouched portion of the reservoir where the rock matrix dominates the flow (unfractured portions). An additional recovery by surfactant solution injection succeeding waterflooding was obtained and found to vary between 0% and 7.4% of OOIP. The surfactant injection is, therefore, recommendable in the pre-waterflooded unfractured zones as long as the proper surfactant type is selected. Half of the surfactant solutions yielded higher and faster capillary imbibition recovery than brine.

请大家帮忙翻译一下文献摘要.谢谢!The cores from the chalky Shuaiba formation were saturated with brine and oilflooded to restore the initial reservoir condition after cleaning. Nineteen samples were waterflooded followed by dilute surfa
来自白垩的 Shuaiba 的核心形成对盐水感到饱和和 oilflooded 到复位那起始水库情况在清洁之后.十九个样品是 waterflooded 跟随被稀释的表面活性剂注入.八个样品一起泛滥稀释的表面活性剂.这的理由方案是水库的一些部份在研究之下完全地被浇水出当其他仍然是未触及的时候.除了这些实验之外,九毛细管 (静电) imbibition 实验是引导到招待破碎地域哪里恢复被毛细管 imbibition 在注入期间是一种可能性.十二个不同的表面活性剂 (在不同的集中) 是测试.五个表面活性剂是非离子的,二 cationic ,四 anionic,和一是一个 anionic 的混合和非离子的.最适宜集中的选择在不同的集中以 IFT 价值为基础.
结果是评估在期限最后油恢复.那平均 waterflooding 恢复被发现了是 OOIP(在 19 中实验) 的 75.1% 然而表面活性剂注入产生一平均 69.9% OOIP.(在 8 中实验) 这指出那表面活性剂注入不是较好和不推荐在 waterflooding 之上为那未触及的部分水库哪里那岩石点阵式支配那流程.(不破碎部分)成功 waterflooding 的表面活性剂解决注入的另外恢复被获得了和发现在 0% 和 OOIP 的 7.4% 之间改变.那表面活性剂注入是,因此,可推荐的在前 waterflooded 中不破碎地域只要那适当的表面活性剂类型是挑选的.一半的那表面活性剂解决产生比较高的和快速的毛细管 imbibition 恢复超过盐水.