Surface functionalization of silica nanoparticles to improve the performance of water flooding in oil wet reservoirs

Azarshin, Shahla; Moghadasi, Jamshid; Aboosadi, Zahra Arab

doi:10.1177/0144598717716281

Cited by 105 publications

(38 citation statements)

References 18 publications

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“…2) showed the characteristics bands of Si-O-Si asymmetric vibration and Si-OH asymmetric stretching vibration at 1048 and 948 cm −1 , respectively [8]. After modification of Neg-SNPs with APTES (AP-SNPs), a new peak at 1556 cm −1 due to N-H bending vibration of amine groups is observed [4], which demonstrates that the amino groups were grafted onto the surface of Neg-SNPs. When the SNPs were modified with MeO-PEG 2K (MeO-PEG-SNPs) it was observed the stretching vibrations at 1690 and 2982 cm −1 corresponding to the carbonyl of the carbamate group and the C-H of the PEG chain, respectively.…”

Section: Characterization Of Silica Nanoparticles With Different Charmentioning

confidence: 97%

Effect of the surface charge of silica nanoparticles on oil recovery: wettability alteration of sandstone cores and imbibition experiments

et al. 2018

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Recently, inorganic nanomaterials have emerged as promising wettability modifiers to improve oil recovery. Among them, silica nanoparticles (SNPs) have gained a privileged place due to their outstanding properties. Several studies have reported the effectiveness of SNPs on this particular application. However, there is an increasing interest of understanding the parameters that may play an important role on oil recovery using nanofluids. The impact of particle size, particle concentration and types of nanoparticles on oil recovery have been reported. Nevertheless, to our knowledge, the influence of the surface charge has not been investigated. In this work, the effect of the surface charge of SNPs on oil recovery was studied. Silica nanoparticles with different charge profiles (negative, positive and slightly negative) were synthesized and characterized using transmission electron microscopy, FT-IR, dynamic light scattering and ζ-potential. Negatively charged nanoparticles (Neg-SNPs; − 33.45 ± 2.75) were obtained by following the Stöber process. The silanol groups present on the surface of the Neg-SNPs are responsible for the negative surface charge. Positively charged nanoparticles (AP-SNPs; + 42.25 ± 1.9) and slightly negatively charged nanoparticles (MeO-PEG-SNPs; − 12.20 ± 0.42) were obtained by grafting (3-aminopropyl) triethoxysilane and methoxy polyethylene glycol (MeO-PEG 2K) onto the surface of Neg-SNPs, respectively. The impact of silica materials with different charge profiles on wettability alteration and oil displacement at different concentrations (100 or 200 mg/L) was evaluated by contact angle estimation and spontaneous imbibition experiments. The results demonstrated that the surface charge of SNPs transformed the wettability of the sandstone cores and impacted oil recovery in a different extent. While MeO-PEG-SNPs showed the best performance at a low concentration, Neg-SNPs were the most effective in changing the rock wettability and removing oil from sandstone cores at a higher concentration. Overall, our results not only allowed to identify the impact of surface charge on oil recovery but also the effect of SNPs concentration on the suitability of the treatment for enhancing the oil recovery process.

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Section: Characterization Of Silica Nanoparticles With Different Charmentioning

confidence: 97%

Effect of the surface charge of silica nanoparticles on oil recovery: wettability alteration of sandstone cores and imbibition experiments

et al. 2018

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“…The authors summarized different functionalized NPs, particularly SiO 2 NPs, to achieve various influential factors in nano-stabilized foam. To this effect, Azarshin et al (2017) experimentally investigated the effect of silane-modified SiO 2 NPs in waterflood injection scenario and concluded by applauding the role of surface coating to influence the IFT and contact angle and ultimately increased oil production by 18% relative to uncoated NPs. Similarly, Al Yousef et al (2017Yousef et al ( , 2019 in their foam stabilization experiment using surface-functionalized NPs found out that functionalized NPs have the ability to decrease gas mobility.…”

Section: Introductionmentioning

confidence: 99%

“…The tools can be used to understand the synergistic or antagonistic responses of the input parameters on the output through response surface methodology (RSM). It also allows the development of regressional models that could give information on the quantitative contributions of the input parameters to output (Azarshin et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Nano-fluid viscosity screening and study of in situ foam pressure buildup at high-temperature high-pressure conditions

Hamza

Soleimani

Merican

et al. 2019

J Petrol Explor Prod Technol

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In this study, an industrial-based surfactant known as MFomax surfactant has been modified with unfunctionalized and silanefunctionalized silica nanoparticles (NPs) to select the high viscous nano-fluid (NF) for generation of in situ foam to assess the differential pressure buildup (∆p) behavior in the porous media. Different weight concentrations of NPs and MFomax from 0.1 to 0.5% were studied using Design Expert Software to generate full matrix design of NF formulations. The viscosity data were analyzed with the aid of response surface analytical tool to investigate the response of NPs loading on the NF viscosity for optimization. The microstructural properties of the NFs were characterized using spectroscopic equipment. Subsequently, the high viscous NF was selected to generate in situ foam in comparison with the precursor MFomax foam for ∆p buildup assessment at 110 °C and 2023 psi in the native reservoir core. Results have shown that both the silica NPs could significantly improve the MFomax viscosity; however, the silane-functionalized silica NPs have more effect to improve the viscosity and other microstructural properties than the unfunctionalized NPs, and thus, they were selected for further experimental studies. The coreflood ∆p buildup assessment shows that NF foam built more ∆p having average value of 46 psi against 25 psi observed in the case of the precursor MFomax foam. Thus, this study demonstrates that functionalized silica NPs could improve the MFomax viscosity and eventually generates high ∆p buildup at high-temperature high-pressure conditions.

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“…Such excess water production usually results in increased environmental concerns, increased levels of corrosion and scale and ultimately leads to early shut-in of wells that still contain significant volumes of hydrocarbons [3] [4] [5]. Currently, polymer flooding technology [6]- [13] is the proven tertiary oil recovery technique all over the world, however, the polymer solution readily crossflow [14] [15] [16] in thief zone. The crossflow causes an invalid injection [17] [18] [19].…”

Section: Introductionmentioning

confidence: 99%

Research and Application of the Novel Deep Plugging Method in the Oilfield

Zhao¹,

Fan²,

Liu³

et al. 2019

MSCE

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In long-term water drive reservoir, small dose and short radius profile control cannot meet the needs, so deep profile control and flooding are needed. During the placement and processing of conventional deep profile control and flooding agent, the zone classification formed by the changes of pressure field and fluid field are not taken into account. In order to better develop these reservoirs, we proposed a novel deep profile control method, that is, the iso-pressure drop gradient progressive deep profile control method. The key features of the method include: 1) the method took into account the reservoir pressure distribution; 2) it proposed a novel standard to divide the orders of zone; 3) the method has been successfully applied in 4 wells in China Oilfield. The method divided the formation into near wellbore zone, well-far zone and deep zone according to the drawdown curve. As each zone of the pressure gradient is different and therefore require different intensity of slug. Then design the agent slugs according to iso-pressure drop gradient rule, and the breakthrough pressure gradient of agent is equal to the formation pressure gradient, and it achieved the fluid diversion of whole course by combining the different intensity of blocking agent. The method was applied successfully in 2 wells in China Oilfield from May to November in 2008. The method can smartly improve the sweep efficiency, and field test shows that it can play a very good efficiency of reducing water and increasing oil production. This method is becoming more of a concern in the oilfield develop.

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Surface functionalization of silica nanoparticles to improve the performance of water flooding in oil wet reservoirs

Cited by 105 publications

References 18 publications

Effect of the surface charge of silica nanoparticles on oil recovery: wettability alteration of sandstone cores and imbibition experiments

Effect of the surface charge of silica nanoparticles on oil recovery: wettability alteration of sandstone cores and imbibition experiments

Nano-fluid viscosity screening and study of in situ foam pressure buildup at high-temperature high-pressure conditions

Research and Application of the Novel Deep Plugging Method in the Oilfield

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