Wettability alteration: A comprehensive review of materials/methods and testing the selected ones on heavy-oil containing oil-wet systems

Mohammed, Mohammedalmojtaba; Babadagli, Tayfun

doi:10.1016/j.cis.2015.02.006

Cited by 244 publications

(140 citation statements)

References 85 publications

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“…It should be noted that the final recovery is outcome of reduction in adhesive forces and spontaneous capillary imbibition. Mohammed and Babadagli (2015) concluded that in cases of nanofluids flooding processes, due to relatively small length of core and minor effects of viscous forces, it is contact angle reduction that controls the starting of spontaneous imbibition. Also, the main result of this study was with regard to the effect of FSNPs, which showed that FSNPs are significantly more effective than typical silica NPs.…”

Section: Core Flooding Resultsmentioning

confidence: 99%

“…It has been widely accepted that different wetting conditions are representative of different flooding conditions and there is a clear relationship between wettability of porous media and residual oil saturation. Mohammed and Babadagli (2015) reported that reservoir wettability is affected by several factors such as rock and fluid interactions, solubility of fluids, chemical adsorption, temperature variation, and capillary hysteresis.…”

Section: Introductionmentioning

confidence: 99%

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

Azarshin

Moghadasi

Aboosadi

2017

Energy Exploration & Exploitation

101

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Over the past few years, increasing attention has been devoted to the applications of special engineered nanoparticles in enhancing oil recovery. Earlier studies reported the effects of these particles on wettability alteration of reservoir rock. The present study presents a new method for modifying the surface properties of silica nanoparticles to make them more effective for enhancing oil recovery purposes. Contact angle, interfacial tension measurements, and core flood experiments were performed to examine the effects of these surface-modified nanoparticles on the interfacial interactions of injected water and reservoir rock and oil sample. To improve the performance of water flooding, surface-modified nanoparticles were produced in laboratory and it was found that amine-functionalized silica nanoparticles are significantly more effective than typical nanoparticles. Experimental results revealed that both contact angle and interfacial tension decrease more in the presence of functionalized nanoparticles. These results were confirmed by performing core flood tests which showed an 18% increase in total oil recovery compared to typical nanoparticles. Therefore, amine-functionalized silica nanoparticles could be more effective than typical nanoparticles in increasing the sweep efficiency by changing the wettability of reservoir rock and reducing oil/water interfacial tension. Moreover, it was observed that there is an optimum concentration for contact angle and interfacial tension reduced by nanoparticles and in concentration more than this threshold value the interfacial tension starts to increase slightly.

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Section: Core Flooding Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Azarshin

Moghadasi

Aboosadi

2017

Energy Exploration & Exploitation

101

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“…The spreading and permeation of droplets on porous substrates is a fundamental process involved in our daily lives and many industrial applications, such as coating [1][2][3][4], painting [5,6], printing [7][8][9][10], land pollution control [11,12], and oil recovery [13]. The spreading and permeation usually occur synchronously but play different roles in the coating or printing applications.…”

Section: Introductionmentioning

confidence: 99%

Droplet spreading and permeating on the hybrid-wettability porous substrates: a lattice Boltzmann method study

Wenkai

et al. 2016

Open Physics

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Abstract:The spreading and permeation of droplets on porous substrates is a fundamental process in a variety of applications, such as coating, dyeing, and printing. The spreading and permeating usually occur synchronously but play different roles in the practical applications. The mechanisms of the competition between spreading and permeation is significant but still unclear. A lattice Boltzmann method is used to study the spreading and permeation of droplets on hybrid-wettability porous substrates, with different wettability on the surface and the inside pores. The competition between the spreading and the permeation processes is studied in this work from the effects of the substrate and the fluid properties, including the substrate wettability, the porous parameters, as well as the fluid surface tension and viscosity. The results show that increasing the surface wettability and the porosity contact angle both inhibit the spreading and the permeation processes. When the inside porosity contact angle is larger than 90 ∘ (hydrophobic), the permeation process does not occur. The droplets suspend on substrates with Cassie state. The droplets are more easily to permeate into substrates with a small inside porosity contact angle (hydrophilic), as well as large pore sizes. Otherwise, the droplets are more easily to spread on substrate surfaces with small surface contact angle (hydrophilic) and smaller pore sizes. The competition between droplet spreading and permeation is also related to the fluid properties. The permeation process is enhanced by increasing of surface

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“…When the diluted bitumen recovery leveled off, the temperature was then increased to 65°C. This sample was immersed into a cationic surfactant (C12TAB), which is known as one of the best wettability modifiers for carbonates (Standness and Austad 2003; Mohammed and Babadagli 2015).Although G1, which immersed into an ionic liquid solution (BMMIM BF 4 ), had slightly slower imbibition than G7 in the beginning, the imbibition rate of G1 sped up and exceeded G7 after the fourth week. The imbibition curves for different GA core samples are shown in Figure 7.…”

Section: Wettability Alteration Phasementioning

confidence: 99%

Bitumen Recovery from Carbonates by Modified SOS-FR (Steam-Over-Solvent Injection in Fractured Reservoir) Method Using Wettability Alteration Chemicals

Mohammed

Babadagli

2015

Day 3 Thu, October 29, 2015

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Application of primary and secondary recovery processes in naturally fractured carbonate reservoirs containing heavy-oil/bitumen usually results in no or low recovery. Hence, an enhanced oil recovery (EOR) method is typically needed at early stages. Changing the characteristics of rock/fluid system, such as wettability and interfacial tension, in such challenging reservoirs becomes critically essential in this attempt. Recovery from the Grosmont carbonate unit is further complicated by the immobility of bitumen as well as extreme reservoir heterogeneity. This specific reservoir requires either pre-heating or solvent dilution before any further EOR attempts.This study investigates the applicability of the modified version of the previously proposed SOS-FR (steam-over-solvent injection in fractured reservoirs) method to recover bitumen from the Grosmont carbonate unit. Using the suggested methodology, three phases were applied on a total of 13 preserved core samples from this unit. In Phase-1, the cores taken from three different formations of the Grosmont unit were soaked into a liquid solvent (heptane or distillate) at ambient conditions. Depending on the quality of the bitumen, a certain amount of recovery was obtained. The original form of the SOS-FR method was based on steam (or hot-water) injection at the temperature near the boiling point of the solvent as the following phase to retrieve the solvent. In Phase-2, instead of this "thermodynamic" approach, we tested an "interfacial" approach and soaked the samples into water with chemicals additions. Wettability modifiers tested include high pH solution, surfactants and ionic liquids, which were screened in our earlier work (SPE 170034) and selected as the most useful wettability alteration chemicals for oil-wet carbonates. One of the key benefits of the ionic liquids is that they are environmentally friendly and can be customized for particular rock/fluid system while pH solutions are economically attractive. Phase-2 was applied at room temperature and at 65°C. Finally, Phase-3 was applied by increasing temperature to the bubble point of the solvent to mimic hot-water injection with chemicals.Each phase was analyzed in terms of ultimate oil recovery (and wettability alteration), time to reach this amount, the most suitable wettability alteration chemicals, and soaking times needed. The results revealed that the solvent phase not only affects the bitumen properties, but also changes Grosmont rock characteristics significantly. Wettability alteration of the fractured Grosmont reservoir was observed to be highly critical, not only for additional oil recovery but also for solvent retrieval. Specific high pH solution was observed to efficiently alter wettability and recover considerable amount of bitumen/solvent mixture fairly quick showing a potential as a low cost chemical to recover bitumen. The results and discussion on the optimization of the process in terms of the solvent soaking period, wettability alteration chemicals, and the effect of temperature will be...

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Wettability alteration: A comprehensive review of materials/methods and testing the selected ones on heavy-oil containing oil-wet systems

Cited by 244 publications

References 85 publications

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

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

Droplet spreading and permeating on the hybrid-wettability porous substrates: a lattice Boltzmann method study

Bitumen Recovery from Carbonates by Modified SOS-FR (Steam-Over-Solvent Injection in Fractured Reservoir) Method Using Wettability Alteration Chemicals

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