Effect of polymer on surfactant floodings of oil reservoirs

Nilsson, Svante; Lohne, Arild; Veggeland, K.

doi:10.1016/s0927-7757(97)00140-4

Cited by 51 publications

(23 citation statements)

References 9 publications

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“…It is crucial to increase oil production from existing reservoirs due to the lack of new oil reservoirs discovered around the world as well as the high cost of exploration and reduction in reservoir drive mechanism [1]. Therefore, most researchers focus on studying new enhanced oil recovery (EOR) techniques.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Ionic Liquid 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]) in Enhanced Medium Oil Recovery

Alarbah¹,

Shirif²,

Shirif³

2017

ACES

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Chemical flooding is one of the most efficient methods for Enhanced Oil Recovery (EOR). This study demonstrates the efficiency of mixing different concentrations of Ionic Liquid (IL), 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]), with Weyburn brine to improve a medium oil recovery, Weyburn oil, from an unconsolidated sand pack sample at room conditions. Effects of Slug Size (SS), IL + brine slug initiation time, and combining IL with alkali on the Recovery Factor (RF) were investigated. This study showed that the optimum concentration of ([EMIM][AC]) was 1000 ppm and the most efficient injection time of the chemical slug was at the beginning of the flooding procedure (as secondary flooding mode). In addition, it was proved that the potential of injecting a slug of IL + brine is much better than that of introducing a slug of alkali + brine. Besides, the combination of IL and alkali (AIL) resulted in better RF than injecting either of them alone. Finally, the Surface Tension (SFT), pH, wettability alteration, and viscosity of the displacing phases were measured.

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Section: Introductionmentioning

confidence: 99%

Efficiency of Ionic Liquid 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]) in Enhanced Medium Oil Recovery

Alarbah¹,

Shirif²,

Shirif³

2017

ACES

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“…High world energy demands make the efficient enhancing oil recovery (EOR) techniques have never become as urgent as today [1]. Generally, chemical enhancing oil recovery methods are of specific concern in oil recovery, like polymer flooding, surfactant flooding and polymer-surfactant flooding [2][3][4]. One of the most promising chemical EOR techniques is the polymer-surfactant flooding.…”

Section: Introductionmentioning

confidence: 99%

Water-soluble complexes of hydrophobically modified polymer and surface active imidazolium-based ionic liquids for enhancing oil recovery

Gou

Yin

Yan

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…The complex flooding systems including polymer flooding (Wang and Dong, 2009), alkaline-surfactant flooding (Liu et al, 2006), surfactant-polymer flooding (Austan, 1995;Nilsson et al, 1997), and alkaline-surfactant-polymer flooding (Li et al, 2000) can sufficiently utilize the synergism effect of alkaline/surfactant/polymer and have been widely investigated and applied. It is generally accepted that the addition of alkaline can efficiently decrease the interfacial tension between crude oil and solution by reacting with acidic species present in the crude oil to form surface-active species.…”

Section: Introductionmentioning

confidence: 99%

Hydroxysulfobetaine/Hydrolyzed Polyacrylamide Complex Systems for Gudao Heavy Oil Recovery: A Dynamic Interfacial Tension Study

Chen

Zhang

et al. 2012

Petroleum Science and Technology

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A complex system that consists of hydroxysulfobetaine and hydrolyzed polyacrylamide has been studied. It is indicated that the complex system is of high viscosity and can reduce the interfacial tension between Gudao heavy oil and solution to ultra-low value. The interfacial tension of complex system in formation water is influenced simultaneously by the concentration of polymer and the salt content. The adsorption experiment shows that hydrolyzed polyacrylamide can prevent hydroxysulfobetaine from being adsorbed on the quartz sands excessively. It can be concluded that the hydroxysulfobetaine/hydrolyzed polyacrylamide complex system is capable of satisfying the requirements of displacement system for EOR.

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Effect of polymer on surfactant floodings of oil reservoirs

Cited by 51 publications

References 9 publications

Efficiency of Ionic Liquid 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]) in Enhanced Medium Oil Recovery

Efficiency of Ionic Liquid 1-Ethyl-3-Methyl-Imidazolium Acetate ([EMIM][Ac]) in Enhanced Medium Oil Recovery

Water-soluble complexes of hydrophobically modified polymer and surface active imidazolium-based ionic liquids for enhancing oil recovery

Hydroxysulfobetaine/Hydrolyzed Polyacrylamide Complex Systems for Gudao Heavy Oil Recovery: A Dynamic Interfacial Tension Study

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