Visualization study of the effects of oil type and model geometry on oil recovery under ultrasonic irradiation in a glass micro-model

Dehshibi, Reza Rezaei; Mohebbi, Ali; Riazi, Masoud; Danafar, Firoozeh

doi:10.1016/j.fuel.2018.11.071

Cited by 21 publications

(8 citation statements)

References 33 publications

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“…it was observed that ultrasound significantly increase the permeability of oolitic carbonate samples but results from sandstone samples were contentious. Their findings agree with some results from the micromodel studies of Rezaei Dehshibi et al [7], where the effect of different geometry and oil type on oil recovery were examined under the influence of ultrasound. Overall, ultrasound improved oil recovery but this was dependent on the geometry of the micromodel.…”

Section: Effect Of Ultrasound On Oil Recovery Improvementsupporting

confidence: 90%

“…Dehshibi et al [7] Ultrasound improved oil recovery, oil mobility and eventually oil percolation Paths but this was dependent on pore geometry. More effects were observed for oils of lower viscosity 30 kHz 100 W -Tan et al [8] ultrasonic power was the most significant factor for oil recovery when compared with other parameters such as frequency, time, temperature and pH.…”

Section: Rezaeimentioning

confidence: 99%

See 1 more Smart Citation

Recent applications of ultrasonic waves in improved oil recovery: A review of techniques and results

et al. 2021

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Section: Effect Of Ultrasound On Oil Recovery Improvementsupporting

confidence: 90%

Section: Rezaeimentioning

confidence: 99%

Recent applications of ultrasonic waves in improved oil recovery: A review of techniques and results

et al. 2021

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“…The 2D-micromodel flooding experiments were performed using the setup shown in Figure b, and the glass micromodel is shown in Figure . Methylene blue powder of 0.1 wt % (Sigma-Aldrich, Australia) was dissolved in the brine to improve the visual observation during micromodel and capillary tube experiments . To ensure full dissolution of the dye particles, the brine–dye mixture was sonicated (using a UNiSONiCS FXP10M sonicator at 40 kHz for 5 h).…”

Section: Methodsmentioning

confidence: 99%

“…Methylene blue powder of 0.1 wt % (Sigma-Aldrich, Australia) was dissolved in the brine to improve the visual observation during micromodel and capillary tube experiments. 53 To ensure full dissolution of the dye particles, the brine−dye mixture was sonicated (using a UNiSONiCS FXP10M sonicator at 40 kHz for 5 h). A Leica microscope (MZ6) and a highspeed, high-resolution camera (UI-3140CP Rev.…”

Section: Methodsmentioning

confidence: 99%

A Multiscale Investigation of Cross-Linked Polymer Gel Injection in Sandstone Gas Reservoirs: Implications for Water Shutoff Treatment

et al. 2020

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Excessive water production is a significant challenge during hydrocarbon production from oil and gas reservoirs, and it is typically controlled by polymer gel placement. However, the fundamental process in terms of how precisely this gel reduces water production in gas reservoirs is rarely reported. The objective of paper is to investigate the impact of cross-linked polyacrylamide (poly(acrylamide-co-acrylic acid) partial sodium salt) gel as a relative permeability modifier for a sandstone/gas/water system and provides insights into the detailed in situ gel behavior inside the porous medium. Stronger gels increased water retention inside the porous media yet decreased the lubrication effect of the gel. Moreover, as the water flow rate increased (during imbibition), the water relative permeability reduction decreased, which is attributed to (a) gel shear thinning behavior and (b) reduction in the residual gas saturation. However, the gel showed shear thickening behavior during gas flow. At low gas flow rates, gel performance is mainly controlled by the gel lubrication effect, while at higher gas flow rates, the significance of gel rigidity is greatly increased. These effects were associated by gas diffusion and gas dissolution in the gel, which in turn expanded the gel layer and reduced gas permeability. Moreover, we identified two counteracting mechanisms (i.e., water retention and lubrication effects) responsible for the disproportionate permeability reduction. In addition, we identified a critical flow rate above which the gel treatment becomes unsuccessful as both effects (i.e., water retention and lubrication) were significantly reduced. These findings thus provide novel insights into the factors leading to successful gel placement to better control water production.

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“…As acoustic waves have no preferential path and can reach every point of the porous media, they do not suffer from the bypassing effects . In addition, traditional and unconventional methods of enhanced oil recovery, including chemical flooding, miscible flooding, and thermal methods, usually require expensive surface equipment and involve many environmental hazards …”

Section: Introductionmentioning

confidence: 99%

Effects of Acoustic Stimulation on Fluid Flow in Porous Media

2021

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Acoustic waves are mechanical waves that can be generated via vibrations. The use of such waves for enhancing flow and transport in porous media has some advantages over traditional enhanced recovery methods including eliminating bypassing effects and environmental hazards. Many physical mechanisms have been identified to improve recovery by applying an acoustic wave. However, the relative contributions of different mechanisms to the stimulated flow and transport phenomena are not still well understood. There are also uncertainties regarding the effects of important controlling factors such as frequency or the efficiency of different source coupling methods. In this work, a multiphysics model is developed to address the latter issues and propose a criterion to distinguish different regimes of acoustically induced effects. Simulation results of this model are correlated to the recovery enhancements to provide the required applied stress or supplied energy that causes observable changes in fluid flow behavior under laboratory conditions. A loss number of N l is proposed based on the dimensionless analysis of wave equation in fluids where the most energy dissipation occurs. The critical values of N l are obtained by implementing a classifier machine learning algorithm on a data set from the literature. When N l is less than 2.1 × 10 −7 , the recovery enhancement is expected to be caused by mechanical effects, and therefore lower frequency (seismic) waves are favorable. At an N l greater than 10 −6 , however, higher frequency (ultrasonic) waves are preferred since the changes in flow behavior are triggered by the adsorbed acoustic energy. In seismic excitations, coupling the source to the pore fluid gives the highest performance, while in ultrasonic treatments, the maximum viscosity reduction can be achieved when a transient frequency scenario is adopted. The results of this study give a better understanding of mechanisms behind the effect of acoustic wave application in porous media.

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Visualization study of the effects of oil type and model geometry on oil recovery under ultrasonic irradiation in a glass micro-model

Cited by 21 publications

References 33 publications

Recent applications of ultrasonic waves in improved oil recovery: A review of techniques and results

Recent applications of ultrasonic waves in improved oil recovery: A review of techniques and results

A Multiscale Investigation of Cross-Linked Polymer Gel Injection in Sandstone Gas Reservoirs: Implications for Water Shutoff Treatment

Effects of Acoustic Stimulation on Fluid Flow in Porous Media

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