New insights into flow physics in the EOR process based on 2.5D reservoir micromodels

Yu, Fuwei; Jiang, Hanqiao; Xu, Fei; Zhang, Fan; Su, Hang; Li, Junjian

doi:10.1016/j.petrol.2019.106214

Cited by 38 publications

(24 citation statements)

References 63 publications

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“…In naturally fractured carbonate reservoirs, oil recovery from a tight matrix depends on spontaneous or forced imbibition, which is almost impossible if the matrix is strongly oil-wet at high IFT. The micromodel studies − indicate that the water cannot be imbibed into an oil-wet micromodel, whereas the type I microemulsion-forming surfactant solution can be spontaneously imbibed into the micromodel (Figure ). The higher concentration of surfactant has a stronger ability to alter the wettability of micromodel toward being water-wet, which leads to a higher imbibition rate.…”

Section: Wettability Alterationmentioning

confidence: 99%

“…Water fails to effectively imbibe into the oil-wet micromodels after 300 s due to the hindrance by capillary forces. The type I microemulsion-forming surfactant solution can be spontaneously imbibed into the oil-wet micromodels because of the IFT reduction and wettability alteration [Reprinted with permission from ref . Copyright 2019 Elsevier].…”

Section: Wettability Alterationmentioning

confidence: 99%

See 1 more Smart Citation

Micromodel Studies of Surfactant Flooding for Enhanced Oil Recovery: A Review

Yang

Wei

et al. 2021

ACS Omega

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Micromodels have been widely used to visualize surfactant flooding, which provides new insights into understanding pore-scale events during displacement. In this review, recent advances in micromodel studies of surfactant flooding are briefly summarized. The mechanisms of surfactant flooding as demonstrated by micromodel studies are presented, as well as pore-scale findings that cannot be captured by traditional coreflood methods.

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Section: Wettability Alterationmentioning

confidence: 99%

Section: Wettability Alterationmentioning

confidence: 99%

Micromodel Studies of Surfactant Flooding for Enhanced Oil Recovery: A Review

Yang

Wei

et al. 2021

ACS Omega

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“…Microfluidic studies using rock micromodels are becoming an alternative to core flooding [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. The development of microfluidics is associated with a significant reduction in the size of devices and the improvement of their technical characteristics.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic Study of the Effect of Nanosuspensions on Enhanced Oil Recovery

et al. 2022

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The essential advantages of microfluidic studies are the excellent visualization of the processes of oil displacement from the porous medium model, simple cleaning, and the possibility of the repeated use of the microfluidic chip. The present article deals with the process of oil displacement by suspension flooding using a microfluidic chip, simulating a porous medium, and the suspensions of silicon dioxide nanoparticles (22 nm). The mass concentration of nanoparticles in suspensions ranged from 0.1 to 2 wt%. Five mass concentrations (0.125 wt%, 0.25 wt%, 0.5 wt%, 1 wt% and 2 wt%) were considered. The article presents the experimental photographs of the oil displacement process by water and SiO2 suspension. It is shown that, with the increasing concentration of nanoparticles, the oil recovery factor increases. A significant effect is observed at 0.5 wt% concentration of nanoparticles. It is shown that the increase in oil recovery during flooding by SiO2 suspension with the maximum concentration was 16%.

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“…As to visualize suspended solids retention and attachment on the grain surfaces of porous media, micromodel is introduced. Micromodel, as pore-level visualization study, offers both quantification and qualification studies through 2D porous media (Yu et al 2019). Pore-scale information is important for better understanding on the displacement process, imbibition and drainage.…”

Section: Introductionmentioning

confidence: 99%

Quantification method of suspended solids in micromodel using image analysis

Jahari

Shafian

Husin

et al. 2021

J Petrol Explor Prod Technol

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Micromodel can provide valuable information to improve understanding of pore-scale transport phenomenon and can also be utilized to simulate the transport process at pore scale. This research aims to propose settlement option for quantification of suspended solids in micromodel. The micromodel is used to mimic the formation damage which occurs in reservoir formation that could simultaneously affect enhanced oil recovery. This is done by utilizing visual image interpretation through image analysis on micromodel chip. Following the quantification of suspended solids, the micromodel was injected with brine that eventually forms agglomeration. Images are taken from NIS-Element AR microscope automatically in RGB color profile and then made into grayscale and finally into binary modes. Since the micromodel is simulated in 2D form structure, the quantification method complemented with image analysis is focusing on the quantified area, µm2 region of interest categorized into 3 main groups of area B05, M45 and T50, respectively. This research will explore on segmentation and thresholding processes of the visual data acquired from micromodel experiment. An image-based computational algorithm is programmed in MATLAB Image Processing Toolbox and ImageJ; hence, suspended solids in porous media could be quantified from the visual image executed in micromodel.

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New insights into flow physics in the EOR process based on 2.5D reservoir micromodels

Cited by 38 publications

References 63 publications

Micromodel Studies of Surfactant Flooding for Enhanced Oil Recovery: A Review

Micromodel Studies of Surfactant Flooding for Enhanced Oil Recovery: A Review

Microfluidic Study of the Effect of Nanosuspensions on Enhanced Oil Recovery

Quantification method of suspended solids in micromodel using image analysis

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