Effects of reservoir rock pore geometries and ultrasonic parameters on the removal of asphaltene deposition under ultrasonic waves

Otumudia, Ephraim; Hamidi, Hossein; Jadhawar, Prashant; Wu, Kaihua

doi:10.1016/j.ultsonch.2022.105949

Cited by 12 publications

(6 citation statements)

References 47 publications

(77 reference statements)

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“…While ultrasound treatment of formation damage may be productive, some factors may deter or enhance the expected outcome. In a recent study, five 2D glass micromodels with varying pore shapes and sizes were used by Otumudia et al [2] to examine the effect of a change in pore shapes and sizes on the elimination of asphaltene deposition by ultrasonic waves. In their experiment, an acrylic glass container was filled with water to provide a favorable environment for the ultrasound to propagate at a frequency of 20 kHz and with variable power levels (from 100 to 1000 W).…”

Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 99%

“…In most situations, the ultrasonic approach efficiently removes impediments to oil flow, and the benefit of oil recovery can endure for a long period. Amongst other benefits, this approach includes low energy consumption, avoidance of rock-fluid or fluid-fluid interactions, zonal selectivity, real-time monitoring, and its applicability to complex/horizontal and deviated wells [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

et al. 2022

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The ultrasound method is a low-cost, environmentally safe technology that may be utilized in the petroleum industry to boost oil recovery from the underground reservoir via enhanced oil recovery or well stimulation campaigns. The method uses a downhole instrument to propagate waves into the formation, enhancing oil recovery and/or removing formation damage around the wellbore that has caused oil flow constraints. Ultrasonic technology has piqued the interest of the petroleum industry, and as a result, research efforts are ongoing to fill up the gaps in its application. This paper discusses the most recent research on the investigation of ultrasound’s applicability in underground petroleum reservoirs for improved oil recovery and formation damage remediation. New study areas and scopes were identified, and future investigations were proposed.

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Section: The Use Of Ultrasonic Waves In Petroleum Reservoirs To Impro...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

et al. 2022

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“…Among state-of-the-art studies, 2D micromodels gain ground due to the visibility of the process. Using such a model, ultrasonic waves with a frequency of 20 kHz are able to remove the pore space from deposited asphaltenes, and the amount of removed asphaltenes increases with increasing treatment time (sonication) [32]. The authors also showed that the geometry of the pore space significantly affects the efficiency of ultrasonic treatment.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ultrasonic Alternating Loads on Restoration of Permeability of Sedimentary Rocks during Crude Paraffinic Oil Flow

Riabokon,

Gladkikh,

Turbakov

et al. 2023

Applied Sciences

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This paper presents the results of experimental studies on the filtration of reservoir fluid through the rocks under the influence of nonlinear loads. A laboratory rig is assembled that allows for modeling the flow of fluid from the reservoir into the well during the propagation of elastic waves from the well. It is shown that depending on the permeability of the rock matrix as well as on the concentration of paraffins and asphaltenes in crude oil, the effect of the nonlinear load is different. Three types of sandstone are studied: low, medium, and high permeability. The greatest influence of nonlinear loads is observed in high-permeability sandstone. The effect manifests itself in fully unblocking the pore space from paraffins and asphaltenes accumulated in pore throats and restoring the oil permeability to its original value. In the case of medium-permeability sandstone subjected to nonlinear loads, blocking of the pore space is slow. In the case of low-permeability sandstone, the impact of nonlinear loads does not have a significant effect. When studying water filtration in the presence of residual oil saturation, the effect of nonlinear loads is observed as a mobilization of additional oil not previously involved in the filtration process, which also leads to an increase in the water permeability of the rock.

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“…While offering a high throughput approach to studying the asphaltene solubility, microfluidic devices possess the scale most relevant to natural rock pores (porosity 20–40%) − and can be excellent models of porous media. , Microfluidics technology also allows direct measurement of pore scale phenomena, which aids understanding of the fluid flow properties (oil–water interface, interaction with pore scale, phase composition, gas–oil ratio, chemical interaction, etc.) in petroleum reservoirs. ,, In all, microfluidics provide well-founded replication of reservoir porous conditions, integration of noninvasive optical and spectroscopic analysis techniques, rapid characterization and measurement to reduce labor, and good control over parameters to study the effect on dissolution, which have helped understanding of the asphaltene aggregation behavior, though they vary in their chemical composition and are dependent on the reservoir conditions. Ultimately microfluidics could yield devices that are easy to deploy in the field and can provide efficient resource management.…”

Section: Introductionmentioning

confidence: 99%

Perspectives on Microfluidics for the Study of Asphaltenes in Upstream Hydrocarbon Production: A Minireview

Sharma

Hartman

2022

Energy Fuels

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The utilization of microfluidics has generated deep insights into asphaltene precipitation mechanisms and oil−water emulsion stabilization. Agglomeration and precipitation of asphaltenes can cause flow assurance problems during the extraction and transportation of crude oil. Change in temperature, pressure, reservoir conditions, and solvents can change the local environment, leading to asphaltene precipitation. Understanding asphaltene properties and precipitation pathways becomes critical in devising mitigation methods, demulsifiers, and suitable conditions during hydrocarbon processing. Microfluidics has helped in high throughput measurement studies, understanding critical processing conditions, fast demulsifier screening, and the effect of solvent concentration on deposition, generating useful information for utilization at the point of resource extraction facilitating improved resource management. It has become possible to capture the porous, complex nature of reservoir formations and the interaction of chemicals during precipitation through integrated analytics and visualization studies available only through microfluidics. The use of droplet microfluidics, with optical microscopy and high-speed imaging to study the oil−water interface, has resulted in greater understanding of the role of asphaltenes in interfacial properties and emulsion stabilization. This minireview highlights the crucial aspects of microfluidics that have been used to understand physicochemical behavior and dynamics of asphaltene deposition. Some of the unique devices have been presented focusing on the key elements of microfluidics design, fabrication, and analysis, as the insight obtained from microfluidics strongly depends on the device design and the controllability of the experimental parameters. Successful implementation of microfluidics for efficient and controlled experiments, short analysis time scales and rapid screening, and generation of high-quality, reliable data that convey asphaltene deposition issues and interface behavior in emulsions shows the importance of microsystems for advancing knowledge in hydrocarbon production and processing.

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Effects of reservoir rock pore geometries and ultrasonic parameters on the removal of asphaltene deposition under ultrasonic waves

Cited by 12 publications

References 47 publications

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

The Utilization of Ultrasound for Improving Oil Recovery and Formation Damage Remediation in Petroleum Reservoirs: Review of Most Recent Researches

The Effect of Ultrasonic Alternating Loads on Restoration of Permeability of Sedimentary Rocks during Crude Paraffinic Oil Flow

Perspectives on Microfluidics for the Study of Asphaltenes in Upstream Hydrocarbon Production: A Minireview

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