Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 389, P. 122853 - 122853
Published: Aug. 16, 2023
Language: Английский
Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136188 - 136188
Published: Jan. 1, 2025
Language: Английский
Citations
2
Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(17), P. 15887 - 15912
Published: Aug. 19, 2024
Foam-assisted gas injection in fractured unconventional reservoirs has garnered considerable attention as a result of its potential to address challenges associated with flooding, such fingering, breakthrough, and gravity override. Foams can enhance mobility conformance control by diverting flow from high-permeability zones (fractures) low-permeability (matrices), leading significantly improved oil sweep efficiency. However, foam capacity, stability, propagation hinge on two primary factors: reservoir characteristics operational parameters. Reservoir include permeability, adverse wettability, fracture connectivity, degree heterogeneity, pressure, temperature, salinity. On the other hand, parameters rate, fractional flow, foaming agent formulations their concentrations, stabilizers, type, strategy. This review offers comprehensive analysis foam-assisted carbonates for enhanced recovery (EOR). Fundamentals behavior porous media, particularly rocks, are presented together most efficient agents stabilizers. Furthermore, factors influencing performance media terms capacity stability provided different aspects. The physics displacement mechanisms during several field trials also discussed. Lastly, this pinpoints knowledge gaps foams proposes strategies incorporating experimental insights into evaluation simulation models. ultimate goal is current understanding EOR projects applicability carbonates.
Language: Английский
Citations
5
Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)
Published: Feb. 1, 2025
Waterflooding serves as a major secondary tight oil recovery technique due to its merits of low risk, cost-effectiveness, and easy operation. The lower limit pore-throat is one the most vital metrics for gas resource potential productivity evaluation. However, existing determination methods cannot directly reflect reservoir performance during production process. In this paper, new method was proposed by introducing factor (RF) criterion intuitively determine waterflooding in low-permeability reservoirs. Three sandstone core samples with representative permeabilities were studied. High-pressure mercury injection nuclear magnetic resonance measurements employed characterize size distribution transient variation oil–water experiments. limits #1 (0.128 mD), #2 (0.490 #3 (0.950 mD) found be 43, 46, 46 nm, respectively. Cores higher permeability demonstrated overall RFs, which contrary expectations. According categorized limit, observation can attributed increased proportion unrecoverable region at permeabilities, suggesting that permeability, macro indicator, might fall short representing actual microstructure flow pathways within reservoir. Microscopic visualization experiment also conducted observe morphology residual both recoverable regions. Our work provides accurately determining from perspective offers data support guidance effective exploitation
Language: Английский
Citations
0
Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(3)
Published: March 1, 2025
Multi-phase microfluidic transport is a topic of great interest in both academic research and industry. This study focuses on the deformation dynamics bubbles generated during oil microchannels. We investigate behavior square microchannels with two semi-cylinders. Our findings show that bubble occurs modes: breakup elastic non-breakup deformation. By evaluating minimum width microchannel neck, we divide modes into four stages, which exhibit power-law variation. Additionally, effects presetting factors viscosity microchannel. To gain deeper insight mechanism bubbles, used micro-particle image velocimetry to describe velocity patterns dimensional distribution flow. successfully summarize dynamical scaling law specifies size formed pore throat It reveals fluid characteristic continuous phase dominates such microdevices.
Language: Английский
Citations
0
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
The development of selective water-plugging materials is a challenging task in oil field research. A magnetically responsive emulsion containing SiO2-Fe3O4 particles was prepared using the mechanical emulsification method. stability, magnetic demulsification, and performance were evaluated. results showed that with could maintain stability for up to 30 days at room temperature. However, when temperature exceeded 80 °C, thermal decreased an increase ratio. Meanwhile, based on response Fe3O4 particles, demulsification behavior under constant strength analyzed, revealing jointly determined by particle membrane surfactant. Results from displacement experiments water phase plugging rate reached more than 97%, only 45%. Mechanism analysis contact angle characterization verified rates phases depend cross-linking form composite material. "wrapping" around SiO2 are beneficial enhancing performance.
Language: Английский
Citations
0
Geoenergy Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 213952 - 213952
Published: May 1, 2025
Language: Английский
Citations
0
Processes, Journal Year: 2025, Volume and Issue: 13(5), P. 1511 - 1511
Published: May 14, 2025
Wastewater reinjection is an important measure for balancing the sustainable development of petroleum resources with environmental protection. However, polymer-containing wastewater generated after polymer injection presents challenges such as reservoir damage and waterflooded zone identification in oilfields. To address this, this study systematically examined impact water varying salinities on flow characteristics electrical responses low-permeability reservoirs, based rock-electrical multiphase displacement experiments. Additionally, analyzed factors influencing to reservoirs during reinjection. Mass spectrometry, chemical compatibility tests, SEM-based micro-characterization techniques were employed reveal micro-mechanisms process, corresponding protective measures proposed. The results indicated following: (1) salinity injected significantly influences response reservoir. When low-salinity injected, resistivity–saturation curve exhibits a concave shape, whereas high-salinity linear monotonically increasing trend. (2) Significant changes observed pore-throat radius distribution before average frequency throats within 0.5–2.5 µm range increased by 1.894%, while that 2.5–5.5 decreased 2.073%. In contrast, pore relatively minor. Both experimental characterization suggest primary form impairment following (3) mitigate formation reinjection, combined physical–chemical deblocking strategy was First, multi-stage precision filtration would be remove suspended solids oil contaminants. Then, mildly acidic organic-acid-based compound used inhibit precipitation metal ions dissolve situ blockage core. This integrated approach effectively alleviate associated
Language: Английский
Citations
0
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 903, P. 166597 - 166597
Published: Aug. 26, 2023
Produced water re-injection (PWRI) is a promising and sustainable strategy to manage substantial quantities of produced for subsurface energy production systems. This approach offers an alternative the environmentally harmful practice marine disposal. Nonetheless, may lead considerable reductions in injectivity. The injectivity loss can be attributed several factors, including inorganic scaling, which obstruct flow pathway through porous media near wellbore as well facilities (e.g., tubing). Scaling also contribute formation mixed organic-inorganic schmoo-like complexes. Iron-containing (FexSy, FexOy-FexOyHz), carbonate-, sulfate-based scales BaSO4, SrSO4, CaCO3) are primary precipitates that have disruptive effects during PWRI scheme, especially reservoirs suffering from microbial souring activities. In this work, we first screened mineral form under relevant conditions using composition seawater samples Danish North Sea. Subsequently, assessed efficiency commercial scale inhibitor against scaling targeted phases series batch experiments, followed by development model simulate its inhibitory performance. To reduce precipitation or deposition different minerals injection applications, evaluated combined effect adding other chemicals (i.e., acid, oxidizer, chelating agent) along with inhibitor. do this, described mineral-aqueous interactions (dissolution, precipitation, solution complexation) PHREEQC. predictive represents time- resource-intensive experiments aid achieving optimized chemical recipes required mitigate systems various physiochemical conditions. work more efficient strategies managing water, ultimately helping environmental impacts hydrocarbon production.
Language: Английский
Citations
9
Chemical Engineering Science, Journal Year: 2021, Volume and Issue: 248, P. 117152 - 117152
Published: Sept. 28, 2021
Transport of oil droplets through porous media is an important topic in the and gas industry. Oil that are present produced water contribute to injectivity decline during re-injection due retention pores. In literature, phenomenon typically studied by means core/packed bed flooding, which struggles provide a simple inexpensive way visualize events at pore scale. This paper demonstrates microfluidic method for studying transport dilute oil-in-water emulsions media. The allows identification every single event capillary level quantitative analysis spatial distribution retained over volumes injected. Experiments were carried out monodisperse tailored polydisperse emulsions. Moreover, several droplet sizes, flow rates dispersed phase concentrations tested. results showed size has dramatic effect on clogging. Droplets larger than throats underwent complete retention, while smaller little no emulsion experiments. Additionally, experiments with facilitators droplets, latter unlikely experience significant independently former. affected re-entry mechanisms it influenced only number events. It was identified concentration limited At low concentration, obtained statistical sample not sufficiently large unravel trends. developed presents solid foundation further developments studies transport.
Language: Английский
Citations
20
Marine Pollution Bulletin, Journal Year: 2022, Volume and Issue: 179, P. 113679 - 113679
Published: April 27, 2022
Language: Английский
Citations
12