当前位置: X-MOL 学术J. Mol. Liq. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of magnetic field treatment on interfacial tension of CTAB nano-emulsion: Developing a novel agent for enhanced oil recovery
Journal of Molecular Liquids ( IF 6 ) Pub Date : 2018-03-29 , DOI: 10.1016/j.molliq.2018.03.111
Amir Hossein Saeedi Dehaghani , Mohammad Hasan Badizad

Nanoemulsion is a novel type of emulsified solutions holding great promises for utilizing in industrial applications. Although microemulsions have been the subject of numerous studies in past decades, however, nanoemulsions are quite virgin and merit detailed investigation to scrutinize their characteristics specific to reservoir engineering, in particular, Enhanced Oil Recovery (EOR). To this end, the present study is an attempt to evaluate the effectiveness of a specific nanoemulsion for oil displacement through porous media. In this regard, flooding experiments were designed and Hexa decyl trimethylammonium bromide (CTAB), which is a cationic surfactant, was used as the emulsifying agent. Throughout experiments, surface tension together with incremental oil recovery was measured.

Besides flooding experiments, to explore the effect of magnetic field on macroscopic behavior of CTAB solution, all procedures were replicated by exposing CTAB solution under magnetic field with varying intensities. Encouraging observations demonstrated the concealed capability of CTAB nanoemulsion for improving the performance of conventional waterflooding process. Additionally, it was pointed out exposing CTAB solution into magnetic field slightly increased oil/nanoemulsion IFT. However, it resulted in fairly higher oil recovery than the non-treated case. Since both cases were of nearly identical IFT and wettability, so we concluded that nanoemulsion is of higher viscosity while exposing to the magnetic field, which in turn gives rise to lower mobility ratio during flooding process.



中文翻译:

磁场处理对CTAB纳米乳液界面张力的影响:开发提高油采收率的新型试剂

纳米乳液是一种新型的乳化溶液,在工业应用中具有广阔的前景。尽管在过去的几十年中,微乳液一直是众多研究的主题,但是,纳米乳液是非常原始的研究,值得详细研究以检查其特定于油藏工程的特性,特别是增强油采收率(EOR)。为此,本研究是评估特定纳米乳液对通过多孔介质驱油的有效性的尝试。在这方面,设计了驱油实验,并将作为阳离子表面活性剂的十六烷基三甲基溴化十六烷基铵(CTAB)用作乳化剂。在整个实验中,均测量了表面张力以及增量采油量。

除了注水实验以外,为探索磁场对CTAB溶液宏观行为的影响,通过将CTAB溶液暴露于不同强度的磁场中来复制所有程序。令人鼓舞的观察表明,CTAB纳米乳液具有改善常规注水工艺性能的隐蔽能力。另外,指出将CTAB溶液暴露于磁场中会稍微增加油/纳米乳液IFT。但是,与未处理的情况相比,它的采油量要高得多。由于两种情况的IFT和润湿性几乎相同,因此我们得出的结论是,纳米乳剂在暴露于磁场的情况下具有较高的粘度,这反过来在驱油过程中会导致较低的迁移率。

更新日期:2018-03-29
down
wechat
bug