Experimental Investigation of Synergy of Components in Surfactant/Polymer Flooding Using Three-Dimensional Core Model

Liu, Zheyu; Cheng, Hongjie; Li, Yanyue; Li, Yiqiang; Chen, Xin; Zhuang, Yongtao

doi:10.1007/s11242-018-1150-y

Cited by 20 publications

(8 citation statements)

References 31 publications

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“…SP flooding has achieved success in the Shengli oilfield with high temperature and high salinity, the Dagang oilfield with fault blocks, and even the Xinjiang oilfield with complex lithology, which can enhance oil recovery by 15− 25%. 101 When the emulsion is monitored by the produced liquid during the SP flooding process, the liquid production of the high-permeability layer decreases, while the liquid production of the medium-and low-permeability layers increases, indicating that the emulsification of the SP flooding slows the interlayer conflict. Some scholars have used surfactants with different emulsifying properties to carry out oil displacement experiments and found that emulsification is more important than reducing IFT in some cases.…”

Section: Application Of In Situ Emulsification In the Fieldmentioning

confidence: 99%

Review and Perspective on the Mechanisms and Application ofIn SituEmulsification for Enhanced Oil Recovery

Liu,

Gao

et al. 2023

Energy Fuels

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In the chemical enhanced oil recovery (CEOR) process, the in situ emulsification between the oil displacement agent and crude oil plays an important role in the swept volume enlargement and displacement efficiency improvement. However, as a result of the complex geologic structure of the reservoir and varied remaining oil types, the occurrence of in situ emulsification in the reservoir and its role in enhancing oil recovery (EOR) are still unclear. We summarized and discussed the current understanding and existed problems in the in situ emulsion formation mechanism, its characterization method, and EOR capacity based on the current research results. The field application results were collected to clarify its potential in EOR. It was found that the in situ emulsification had been verified as an important role in oil recovery in both laboratory and pilot tests. However, the preparation and evaluation methods of in situ emulsification exist as a big difference with real conditions, which may cause people to misunderstand its EOR mechanism. The requirement for the in situ emulsification is quite different between the high-and low-permeability reservoirs. We expected that this review and perspective could help people understand the problems in this area. The proposed solution method could also draw some attention, which will promote the application of the in situ emulsification technique.

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Section: Application Of In Situ Emulsification In the Fieldmentioning

confidence: 99%

Review and Perspective on the Mechanisms and Application ofIn SituEmulsification for Enhanced Oil Recovery

Liu,

Gao

et al. 2023

Energy Fuels

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“…Massarweh and Abushaikha (2020) reviewed the use of surfactants in EOR in 2020, they found that the surfactants have successfully increased the oil recovery through interfacial tension reduction, wettability alteration, foam generation, and emulsification. Also, several papers use formulations or synergistic combinations of surfactants to enhance the performance of EOR (Belhaj et al, 2021; Cui et al, 2012; Jian et al, 2018; Liu et al, 2018; Romero‐Zerón et al, 2020; Sarkar et al, 2021; Sarmah et al, 2019). However, since 2010, supramolecular surfactants have been developed and employed.…”

Section: Introductionmentioning

confidence: 99%

Static and dynamic adsorption of supramolecular surfactant for oil recovery in high temperature and salinity conditions

Nieto-Alvarez

Marín‐León

Luna-Rojero

et al. 2023

J Surfact & Detergents

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The adsorption of a supramolecular surfactant formed by the non‐covalent interactions among sodium (E)‐dodec‐2‐ene‐1‐sulfonate, sodium 3‐hydroxydodecane‐1‐sulfonate and 3‐[(3‐dodecanoylamidopropyl)dimethylazaniumyl]‐2‐hydroxypropane‐1‐sulfonate onto limestone under static and dynamic conditions in the presence of seawater and connate water is presented. In the static test at 70°C and atmospheric pressure, the adsorption capacity of the saturated monolayer was 8.65 mg/g for seawater and 4.05 mg/g for connate water. This behavior was associated with the increase of the critical micellar concentration from 217 ppm in seawater to 672 ppm in connate water, which is related to the capacity of the supramolecular surfactant to form complexes at high salinity and hardness. The dynamic experiment was carried out at 130°C with a pressure of 16,500 kPa, a flow rate of 90 mL/h and a dose of 2000 ppm of the surfactant. An adsorption of 0.230 mg/g was found in seawater, while a value of 0.109 mg/g was obtained in connate water, consistent with the static experiment. In addition, spontaneous imbibition experiments for connate and connate water with 2000 ppm of surfactant showed an increase in the oil recovery factor from 3% to 17% in the presence of surfactant at 100°C. It was observed that the rock changed from oil‐wettable to water‐wettable, indicating that the supramolecular complex retains its capability to form the monolayer on the rock surface. In contrast to the ionic and cationic conventional surfactants, the experimental evidence indicates that the surfactant preserves its properties under the extreme conditions found in mature Mexican carbonate reservoirs.

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“…Surfactant‐polymer (SP) flooding is a binary flooding system composed of surfactants and polymers, which avoids the use of alkali and is greener and more sustainable (AlSofi et al, 2021; Zhu et al, 2012; Gao et al, 2021). It is a potential oil displacement technology to replace ASP and has attracted extensive research interest (Ayirala et al, 2021; Fu et al, 2019; Kamal et al, 2016; Liu et al, 2017; Liu et al, 2019; Sun et al, 2020). However, alkali is essential to achieve ultra‐low oil–water IFT and drive residual oil, and its absence is accompanied by adverse effects.…”

Section: Introductionmentioning

confidence: 99%

A new zwitterionic surfactant with high interfacial activity and high salt tolerance derived from methyl oleate through an eco‐friendly aryl‐introducing method

Liu

Gao

Zhang

et al. 2022

J Surfact & Detergents

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Surfactants, that can reduce the interfacial tension between crude oil and formation water to ultra-low, are needed in tertiary oil recovery. A bio-based zwitterionic surfactant, N-phenylpropanaldehyde epoxy acetal octadecanoicamido propyl-N, N-dimethyl hydroxy sulfonate (PADS), was derived from methyl oleate. In the process of synthesizing PADS, a new reactive site was introduced by epoxidizing methyl oleate and then the benzene ring was introduced by acetalization, which was a greener new method of introducing benzene ring into hydrophobic chains of surfactants. PADS was identified by ESI-MS and NMR, and its interfacial activity was measured by interfacial tensiometer. The results showed that PADS possessed excellent interfacial activity and potential for low-dose application. Under alkali-free conditions, it could reduce the interfacial tension between crude oil and simulated formation water to ultra-low in a wide concentration range (0.005-3 g/L). In addition, although the NaCl concentration was 230 g/L in the system, PADS still had good interfacial activity and could maintain ultra-low oil-water interfacial tension. The protocol of epoxidation and acetalization provides a new feasible path to preparing bio-based surfactants with high interfacial activity.K E Y W O R D S acetalization, bio-based zwitterionic surfactant, enhanced oil recovery, epoxidized fatty acid esters, ultra-low interfacial tension

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Experimental Investigation of Synergy of Components in Surfactant/Polymer Flooding Using Three-Dimensional Core Model

Cited by 20 publications

References 31 publications

Review and Perspective on the Mechanisms and Application ofIn SituEmulsification for Enhanced Oil Recovery

Review and Perspective on the Mechanisms and Application ofIn SituEmulsification for Enhanced Oil Recovery

Static and dynamic adsorption of supramolecular surfactant for oil recovery in high temperature and salinity conditions

A new zwitterionic surfactant with high interfacial activity and high salt tolerance derived from methyl oleate through an eco‐friendly aryl‐introducing method

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