Mechanistic study to investigate the injection of surfactant assisted smart water in carbonate rocks for enhanced oil recovery: An experimental approach

Tajikmansori, Alireza; Hosseini, Mostafa; Dehaghani, Amir Hossein Saeedi

doi:10.1016/j.molliq.2020.114648

Cited by 22 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, AFM has been widely used for on the situ imaging in nanoscale and direct measurement of oil-rock interaction [98,99]. By using quantitative force curve data, it can be utilized to confirm the in situ wettability of the reservoirs and validate the adsorption of nanoparticles on the solid surfaces [99][100][101][102].…”

Section: Atomic Force Microscopymentioning

confidence: 99%

Microscopic Characterization and Fractal Analysis of Pore Systems for Unconventional Reservoirs

Guan,

Cai,

et al. 2024

JMSE

View full text Add to dashboard Cite

The complex pore structure of unconventional oil and gas reservoirs is one of the reasons for the difficulties in resource evaluation and development. Therefore, it is crucial to comprehensively characterize the pore structure, understand reservoir heterogeneity from multiple perspectives, and gain an in-depth understanding of fluid migration and accumulation mechanisms. This review outlines the methods and basic principles for characterizing microporous systems in unconventional reservoirs, summarizes the fractal analysis corresponding to the different methods, sorts out the relationship between the fractals and reservoir macroscopic physical properties (porosity, permeability, etc.) with the reservoir microscopic pore structures (pore structure parameters, pore connectivity, etc.). The research focuses on cutting-edge applications of characterization techniques, such as improved characterization accuracy, calibration of PSD ranges, and identification of different hydrogen compositions in pore systems for dynamic assessment of unconventional reservoirs. Fractal dimension analysis can effectively identify the quality level of the reservoir; complex pore-throat structures reduce permeability and destroy free fluid storage space, and the saturation of removable fluids is negatively correlated with Df. As for the mineral composition, the fractal dimension is positively correlated with quartz, negatively correlated with feldspar, and weakly correlated with clay mineral content. In future qualitative characterization studies, the application and combination of contrast agents, molecular dynamics simulations, artificial intelligence techniques, and 4D imaging techniques can effectively improve the spatial resolution of the images and explore the adsorption/desorption of gases within the pores, and also help to reduce the computational cost of these processes; these could also attempt to link reservoir characterization to research on supercritical carbon dioxide-enhanced integrated shale gas recovery, carbon geological sequestration, and advanced underground hydrogen storage.

show abstract

Section: Atomic Force Microscopymentioning

confidence: 99%

Microscopic Characterization and Fractal Analysis of Pore Systems for Unconventional Reservoirs

Guan,

Cai,

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…The hydrocarbons in the crude oil and ones adsorbed on the rock surface lies in a wide range of electric properties. According to the literature review, the dielectric constant of the asphaltenes could also be 3-4 times of the other hydrocarbons, such as alkanes [36][37][38][39][40]. Hence, the energy absorbed by asphaltene molecules could lie in the range of 3-4 times of the other hydrocarbons.…”

Section: Atr-ftir Spectroscopymentioning

confidence: 99%

Investigation of microwave radiation in conjugate with acidizing as a novel hybrid method of oil well stimulation

Tanhaei,

Saeedi Dehaghani,

Karami

2023

Scientia Iranica

View full text Add to dashboard Cite

In this research, the effect of microwave radiation simultaneous with acidizing on the carbonate rock surface has been investigated. Saturated rock sections were first immersed in the acid solution, and then, exposed to the microwave at 1300 W and 780 W for 1, 2, and 3 min. The surface wettability and hydrocarbon desorption from the rock surface were respectively investigated by the contact angle measurement and Attenuated Total Reflectance-Fourier Transform Infra-Red (ATR-FTIR) spectroscopy. It was observed that the angle under the microwave in the vicinity of the acidic solution improves toward waterwetness and becomes oil-wet. The reduction of the contact angle in the combined mode is tenser due to the simultaneous effect of acid and microwave radiation. According to the ATR-FTIR spectrums, the microwave radiation of the sections during the acid treatment led to desorption of aromatic compounds, long alkanes, polar bonds (O-H and N-H), and the compounds with C=O functional groups. The electrically polar hydrocarbons have more

show abstract

“…Balancing the increasing energy demand with eco-friendly solutions remains a critical challenge for the future. Oil recovery from these reservoirs poses significant challenges, attributed to factors such as low permeability, mixed-to-oil-wetness of the reservoir rock, a high density of natural fractures, and a notable degree of heterogeneity 17 – 19 . To overcome these challenges, advanced smart water flooding techniques have emerged as a viable solution in the oil industry.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the sequence injection effect of sea water and smart water into an offshore carbonate reservoir for enhanced oil recovery

Dehaghani,

Daneshfar

2024

Sci Rep

Self Cite

View full text Add to dashboard Cite

This study explores enhanced oil recovery (EOR) strategies, with a focus on carbonate reservoirs constituting over 60% of global oil discoveries. While “smart water” injection proves effective in EOR for carbonate reservoirs, offshore application challenges arise due to impractical volumes for injection. To address this, we propose a novel continuous injection approach, systematically investigating it on a laboratory scale using the Iranian offshore reservoir, Sivand. Thirty-six contact angle tests and twelve flooding experiments are meticulously conducted, with key ions, potassium, and sulfate, playing pivotal roles. Optimal wettability alteration is observed at 4 times potassium ion concentration in 0–2 times sulfate concentrations, driven by ionic strength and charge interactions. Conversely, at 3–5 times sulfate concentrations, the optimal contact angle shifts to 2 times potassium ion concentration, suggesting a mechanism change linked to increasing sulfate ion ionicity. A significant wettability alteration, evidenced by a 132.8° decrease, occurs in seawater with a twofold concentration of potassium ions and a fivefold concentration of sulfate ions. Micromodel experiments introduce an innovative alternation of smart water and seawater injections. The first scenario, smart water followed by seawater injection, reveals negligible post-seawater injection oil recovery changes. In contrast, the second scenario yields a maximum recovery of 7.9%. The first scenario, however, boasts superior overall sweep efficacy, reaching approximately 43%. This research expands understanding of smart water and seawater injection in EOR, presenting a viable solution for optimizing offshore carbonate reservoir recovery. The insights contribute to evolving EOR methodologies, emphasizing tailored strategies for varying reservoir conditions.

show abstract

Mechanistic study to investigate the injection of surfactant assisted smart water in carbonate rocks for enhanced oil recovery: An experimental approach

Cited by 22 publications

References 49 publications

Microscopic Characterization and Fractal Analysis of Pore Systems for Unconventional Reservoirs

Microscopic Characterization and Fractal Analysis of Pore Systems for Unconventional Reservoirs

Investigation of microwave radiation in conjugate with acidizing as a novel hybrid method of oil well stimulation

Experimental investigation of the sequence injection effect of sea water and smart water into an offshore carbonate reservoir for enhanced oil recovery

Contact Info

Product

Resources

About