A comprehensive review of emulsion and its field application for enhanced oil recovery

Yazhou, Zhou; Yin, Daiyin; Chen, Wenlin; Liu, Bin; Zhang, Xiaoran

doi:10.1002/ese3.354

Cited by 121 publications

(74 citation statements)

References 99 publications

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“…Interesting accounts of the current knowledge on emulsion flows for EOR can be found in the following recent review papers: refs. (Perazzo et al, 2018;Zhou et al, 2019) while a review on spontaneous emulsification in the context of EOR can be found in ref. (Li et al, 2020) The pore scale dynamics of emulsion flows in porous media are particularly complex since they feature both liquid-liquid interface instabilities that are characteristic of immiscible two-phase flow, and a non-Newtonian rheology.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of oil recovery by emulsion injection: A pore scale analysis from X-ray micro-tomography measurements

Scheffer

Méheust

Carvalho

et al. 2021

Journal of Petroleum Science and Engineering

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Introductionmentioning

confidence: 99%

Enhancement of oil recovery by emulsion injection: A pore scale analysis from X-ray micro-tomography measurements

Scheffer

Méheust

Carvalho

et al. 2021

Journal of Petroleum Science and Engineering

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“…Depending on the dispersed and continuous phase, emulsions are primarily categorized into oil in water and water in oil wherein water forms the continuous and dispersed phase respectively (Schramm 2014). Emulsions are widely applicable in a plethora of industries, including food (Shao et al 2020), membranes (Ahmad et al 2019), drug delivery (Yan et al 2019), cosmetic (Venkataramani et al 2020), personal care (Marto et al 2018), pharmaceutical (Kiss et al 2011), energy storage (Zhang et al 2019), and oil and gas (Zhou et al 2019), and their stability is of high significance.…”

Section: Introductionmentioning

confidence: 99%

Surfactant-Free Cellulose Filaments Stabilized Oil in Water Emulsions

Varamesh

Prathapan

Telmadarreie

et al. 2021

Preprint

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There has been significant interest over recent years in the production and application of sustainable and green materials. Among these, nanocellulose has incurred great interest because of its exceptional properties and wide range of potential applications, including in Pickering emulsions. However, the production cost of these cellulosic materials has limited their application. In this study, the capability of a new type of cheaper cellulosic material, cellulose filaments (CFs), in formulating stable oil in water Pickering emulsions was investigated and compared with three conventional nanocelluloses, namely cellulose nanocrystals (CNCs), cellulose nanofibrils (CNFs) and TEMPO-oxidized CNFs (TEMPO-CNFs). Results showed that CFs can provide stable surfactant-free emulsions over wide ranges of salt concentration (0 – 500 mM) and pH (2 – 10), as indicated by the near constant oil droplet size and dewatering index of the emulsions. This is due to the ability of CFs to strongly adsorb to the oil and water interface, as evidenced by visualizing labeled CFs with engineered carbohydrate-binding module (CBM2a) conjugated with green fluorescent protein (CBM2a-eGFP) under fluorescent microscopy. Compared to the emulsions stabilized by other types of nanocelluloses, the CFs-stabilized emulsion demonstrated a larger average droplet size and comparable (with CNFs) or better (than CNCs and TEMPO-CNFs) stability, which is partially attributed to the higher viscosity of continuous phase in the presence of CFs. The results of this study demonstrate the use of CFs as a novel and cheaper cellulosic material for stabilizing emulsions, which opens the door to a range of markets from the food industry to engineering applications.

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“…Moreover, conventional W/O and O/W emulsions are easy to prepare, with a lower requirement of emulsifier (surfactant) and no need for co‐surfactants. Generally, conventional W/O and O/W emulsions show great potential in a wide range of applications, such as in the food industry, encapsulation and delivery systems for nutrition, etc …”

Section: Introductionmentioning

confidence: 99%

The effect of single CNTs/GNPs and complexes on promoting the interfacial catalytic activity of lipase in conventional emulsions

et al. 2020

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BACKGROUND The interfacial activation mechanism of lipase enables it to exhibit high catalytic activity in water‐in‐oil (W/O) microemulsions. However, W/O microemulsions have obvious defects such as a small water pool and a large demand for surfactants. The present study investigated the substitutability of conventional oil‐in‐water (O/W) and W/O emulsions as lipase catalytic systems. Carbon nanotubes (CNTs)/gold nanoparticles (GNPs) or CNT–GNP electrostatically bonded complexes were added into the conventional emulsion system. RESULTS The simulated biphasic system and fluorescence study showed different and even contradictory results for the interfacial behavior of CNTs and CNT–GNP complexes due to the variation of the dispersibility of CNTs in cetyltrimethylammonium bromide (CTAB). Results also showed that conventional O/W emulsions were more suitable for lipase catalysis than conventional W/O emulsions. When CNTs or CNTCATB–GNP complexes were added in a conventional O/W emulsion system, the catalytic activity of lipase was significantly promoted (up to 4.8‐fold using CNTs and 3.5‐fold using CNTCATB–GNP complexes compared with free lipase). CONCLUSIONS The possible reason for this promotion may be due to the increase in the interface area. The current study was not only the latest exploration of lipase activity promotion via nanomaterials, but also explored a new lipase catalytic system and provides further insight into improving the catalytic performance of lipase in conventional emulsions. © 2020 Society of Chemical Industry

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A comprehensive review of emulsion and its field application for enhanced oil recovery

Cited by 121 publications

References 99 publications

Enhancement of oil recovery by emulsion injection: A pore scale analysis from X-ray micro-tomography measurements

Enhancement of oil recovery by emulsion injection: A pore scale analysis from X-ray micro-tomography measurements

Surfactant-Free Cellulose Filaments Stabilized Oil in Water Emulsions

The effect of single CNTs/GNPs and complexes on promoting the interfacial catalytic activity of lipase in conventional emulsions

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