Ultra-low interfacial tension (IFT) zwitterionic surfactant for imbibition enhanced oil recovery (IEOR) in tight reservoirs

Jia, Ruxue; Kang, Wanli; Li, Zhe; Yang, Hongbin; Gao, Zhendong; Zheng, Zhongwen; Yang, Hailong; Zhou, Bobo; Jiang, Haizhuang; Turtabayev, Sarsenbek

doi:10.1016/j.molliq.2022.120734

Cited by 16 publications

(6 citation statements)

References 38 publications

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“…After nanofluid displacement, waterflooding is conducted, and the displacing water phase carries the nanoparticles adsorbed on the pore walls to the outlet, resulting in a period of low water phase permeability. The starting position of the water phase relative permeability curve shifts to the left [26]. As the nanoparticles are flushed out, the temporarily reduced water phase permeability is restored, and the water phase relative permeability curve rises.…”

Section: Analysis Of Relative Permeability Curvesmentioning

confidence: 95%

An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

Tian,

Zhao,

et al. 2024

FDMP

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The low porosity and low permeability of tight oil reservoirs call for improvements in the current technologies for oil recovery. Traditional chemical solutions with large molecular size cannot effectively flow through the nanopores of the reservoir. In this study, the feasibility of Nanofluids has been investigated using a high pressure high temperature core-holder and nuclear magnetic resonance (NMR). The results of the experiments indicate that the specified Nanofluids can enhance the tight oil recovery significantly. The water and oil relative permeability curve shifts to the high water saturation side after Nanofluid flooding, thereby demonstrating an increase in the water wettability of the core. In the Nanofluid flooding process the oil recovery was enhanced by 15.1%, compared to waterflooding stage. The T2 spectra using the NMR show that after Nanofluid flooding, a 7.18% increment in oil recovery factor was gained in the small pores, a 4.9% increase in the middle pores, and a 0.29% increase in the large pores. These results confirm that the Nanofluids can improve the flow state in micro-sized pores inside the core and increase the ultimate oil recovery factor.

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Section: Analysis Of Relative Permeability Curvesmentioning

confidence: 95%

An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

Tian,

Zhao,

et al. 2024

FDMP

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“…Tight oil is the main source of future global oil production growth . It is expected that global oil production will increase by 2.254 million tons/day by 2030, with nearly half of it coming from tight oil . At that time, tight oil will meet the global demand of 5% to 9%.…”

Section: Global Tight Oil Resources and Distributionmentioning

confidence: 99%

“…30 It is expected that global oil production will increase by 2.254 million tons/day by 2030, with nearly half of it coming from tight oil. 31 At that time, tight oil will meet the global demand of 5% to 9%. However, from the perspective of tight oil production in different countries and regions, North America will still maintain a "dominant" situation before 2030.…”

Section: Statistics Of World Tight Oilmentioning

confidence: 99%

Review of the Development Status and Technology of Tight Oil: Advances and Outlook

Liu

2023

Energy Fuels

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Tight sandstone and shale oil reservoirs are one of the most promising and realistic important oil exploration fields in the 21st century. The research on the development technology of tight sandstone and shale oil reservoirs has important theoretical and practical significance for the exploration and development of tight sandstone and shale oil reservoirs in China. First, this article introduces the distribution of tight oil in the world and calculates the recoverable reserves of tight oil technology worldwide. The review also introduces the current status of tight oil exploration and development in major countries such as the United States, Canada, and China, including the distribution of tight oil resources, the main parameters of tight oil basins, and tight oil production. Second, it analyzes the current development status of tight oil in the United States, summarizes the four main factors that led to the success of tight oil exploration and development in the United States, and points out the impact of the successful development of tight oil in the United States on the global oil supply and demand relationship. Third, in the review of the main development technologies for tight oil, the current status, application, and progress of the main development technologies for tight oil are summarized and analyzed, including horizontal well drilling, fracturing and transformation technology, microscale seismic diagnosis, gas injection, and other technologies. Finally, the development examples of tight oil such as the Bakun shale in the United States are analyzed, and the application effects and experiences of horizontal well volume fracturing in regions such as the United States are summarized.

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“…At present, the heterogeneous-compound flooding based on micro-dispersed gel can expand the sweep by the viscosity of the micro-dispersed-gel solution plugging the water channel [32][33][34]. By combining the micro-dispersed gel [35] with the surfactant, the mechanism of plugging the high-permeability channel [36,37], low interfacial tension [38][39][40][41], and wettability reversal [42,43] can be realized in the displacement stage to improve the oil recovery rate.…”

Section: Introductionmentioning

confidence: 99%

Study on the Adaptability Evaluation of Micro-Dispersed-Gel-Strengthened-Alkali-Compound System and the Production Mechanism of Crude Oil

Wang,

Wu,

Liu

et al. 2024

Processes

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A novel micro-dispersed-gel (MDG)-strengthened-alkali-compound flooding system was proposed for enhanced oil recovery in high-water-cut mature oilfields. Micro-dispersed gel has different adaptability and application schemes with sodium carbonate and sodium hydroxide. The MDG-strengthened-alkali flooding system can reduce the interfacial tension to an ultra-low interfacial-tension level of 10−2 mN/m, which can reverse the wettability of rock surface. After 30 days aging, the MDG-strengthened-Na2CO3 flooding system has good viscosity retention of 74.5%, with an emulsion stability of 79.13%. The enhanced-oil-recovery ability of the MDG-strengthened-Na2CO3 (MDGSC) flooding system is 43.91%, which is slightly weaker than the 47.78% of the MDG-strengthened-NaOH (MDGSH) flooding system. The crude-oil-production mechanism of the two systems is different, but they all show excellent performance in enhanced oil recovery. The MDGSC flooding system mainly regulates and seals micro-fractures, forcing subsequent injected water to enter the low-permeability area, and it has the ability to wash the remaining oil in micro-fractures. The MDGSH flooding system mainly removes the remaining oil on the rock wall surface in the micro-fractures by efficient washing, and the MDG particles can also form weak plugging of the micro-fractures. The MDG-strengthened-alkali flooding system can be used as an alternative to enhance oil recovery in high-water-cut and highly heterogeneous mature oilfields.

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Ultra-low interfacial tension (IFT) zwitterionic surfactant for imbibition enhanced oil recovery (IEOR) in tight reservoirs

Cited by 16 publications

References 38 publications

An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

Review of the Development Status and Technology of Tight Oil: Advances and Outlook

Study on the Adaptability Evaluation of Micro-Dispersed-Gel-Strengthened-Alkali-Compound System and the Production Mechanism of Crude Oil

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