SmartWater synergy with chemical EOR: Effects on polymer injectivity, retention and acceleration

AlSofi, Abdulkareem M.; Wang, Jinxun; Kaidar, Ziyad

doi:10.1016/j.petrol.2018.02.036

Cited by 37 publications

(21 citation statements)

References 15 publications

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“…The better the 33 separation and treatment of the multiphase flows, the higher the value of the gas and oil, as well 34 as the reduced environmental impact of the produced water disposal. Despite lifting the oil 35 recovery factor up to 15% (Alsofi et al, 2018), EOR chemicals can impact the separation of 36 produced fluids in oil platforms, especially the removal of oil from produced water (Chen et al,37 2015; Ma et al, 2013). 38…”

Section: Introduction 26mentioning

confidence: 99%

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

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Heindel

et al. 2021

Journal of Petroleum Science and Engineering

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Section: Introduction 26mentioning

confidence: 99%

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

Orlando

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Heindel

et al. 2021

Journal of Petroleum Science and Engineering

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“…The better solubility of polymer in LSW leads to the alteration of the polymer retention, which is critical for the technical and economical design of the process. In [35], it was indicated that the polymer retention decreased by 10-28%, which was noticeable. Expansion of the polymer chains due to repulsion results in the fitting of fewer polymer molecules on the adsorption rock surface sites, which reduces the retention.…”

Section: Lsw/polymer Hybrid Eor Techniquementioning

confidence: 95%

“…They found that at lowersalinity concentration, coiling of the polymer backbone is reduced due to lower existing ions in LSW. Therefore, there are more repulsive interactions among the polymer chains causing the expansion of the polymer backbone, which results in higher viscosity of the polymer solution that leads to pressure buildup and slightly lower polymer injectivity [35].…”

Section: Lsw/polymer Hybrid Eor Techniquementioning

confidence: 99%

Hybrid EOR Methods Utilizing Low-Salinity Water

Pourafshary¹,

Moradpour²

2019

Enhanced Oil Recovery Processes - New Technologies

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Low-salinity water (LSW) flooding has been applied in sandstone and carbonate formations to improve oil recovery. Wettability alteration by LSW has been identified as the dominant driving mechanism for the incremental oil recoveries. LSW flooding has been combined with other EOR methods to develop new hybrid approaches to improve crude/brine/rock (CBR) interactions with the objective of overcoming some of the LSW flooding downsides, which include oil trapping and fine migration. Hybrid methods can provide higher oil recovery than each stand-alone technique. For instance, changes in gas solubility during LSW injection positively affect the performance of LSW/gas hybrid injection. LSW/surfactant flooding can contribute to incremental recovery by simultaneously lowering interfacial tension (IFT) and wettability alteration. The synergistic effect of fluid redistribution by LSW and enhanced water mobility by polymer flooding improves oil detachment and displacement in porous media through the application of the hybrid approach LSW/polymer flooding. Nanoparticles (NPs), mainly SiO 2 , can alter wettability toward more water wetness in combination with LSW, and hot LSW can improve heavy oil production by reducing viscosity. Hence, the synergistic effect of hybrid EOR methods based on LSW flooding is considered a novel EOR approach to improve oil recovery.

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“…In light of these shortcomings, several researchers suggested that LSW/SMW may occasionally have a limited or even harmful effect . A more economical and efficient way to overcome the constraints of using LSW/SMW is created when coupled with other EOR techniques. , Some researchers − have confirmed the excellent efficiency of combining LSW/SMW with chemical EOR (CEOR) technologies. Surfactants and polymers are the most popular compounds utilized for this purpose.…”

Section: Introductionmentioning

confidence: 99%

Experimental Core Flooding Investigation of New ZnO−γAl₂O₃ Nanocomposites for Enhanced Oil Recovery in Carbonate Reservoirs

et al. 2022

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Generally, crude oil production in mature oil reservoirs is difficult. In this regard, some nanoparticles have been used to upgrade injected water into oil reservoirs. These nanoparticles can be used in a variety of injectable waters, including smart water (SMW) with special salinity. This study aims to evaluate the performance of the injection of SMW with ZnO−γAl 2 O 3 nanoparticles in enhanced oil recovery (EOR). The performance of SMW with ZnO−γAl 2 O 3 nanoparticles in regard to contact angle (CA), interfacial tension (IFT) reduction, and oil production with core flooding tests was investigated. The newly prepared ZnO−γAl 2 O 3 structure was characterized by energy dispersive X-ray (EDX), Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD) analyses in this research. The effects of different concentrations of nanofluids on zeta potential (ZP) and conductivity were investigated. The ZP test confirmed the results of the stability tests of the developed nanofluids in water-based solutions. After the introduction of ZnO−γAl 2 O 3 nanoparticles into the formation of brine and SMW solutions, oil−water (O/W) IFT was reduced. Based on the results, the IFT decreased more when nanoparticles and ions were present in the system. The results of the present study showed that at the concentration of SW+300 ppm ZnO−γAl 2 O 3 , the IFT value reached 11 mN/m from 27.24 mN/m. The results of the CA tests showed that improving the capabilities of salt water in the presence of nanoparticles has resulted in a very effective reduction. Also, in this regard, very hydrophilic wettability was achieved using SMW with stable nanoparticles. Moreover, the results of the present study showed that at the concentration of SMW+300 ppm ZnO−γAl 2 O 3 nanoparticles, the CA value reached 31 from 161°. In the end, the solution of SW+300 ppm ZnO−γAl 2 O 3 improved the OR by 15 and 24%. This research indicated that it is possible to develop and implement different nanoparticles by combining SMW to manage reservoir rock wettability and maximize OR from carbonate reservoirs. Thus, this combination as an effective agent could significantly increase reservoir sweep efficiency. Thus, as a result, using the established hybrid technique has distinct advantages over using SMW flooding alone.

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SmartWater synergy with chemical EOR: Effects on polymer injectivity, retention and acceleration

Cited by 37 publications

References 15 publications

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

Hybrid EOR Methods Utilizing Low-Salinity Water

Experimental Core Flooding Investigation of New ZnO−γAl₂O₃ Nanocomposites for Enhanced Oil Recovery in Carbonate Reservoirs

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SmartWater synergy with chemical EOR: Effects on polymer injectivity, retention and acceleration

Cited by 37 publications

References 15 publications

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

Gas holdup and flow regime in a bubble column that includes enhanced oil recovery chemicals

Hybrid EOR Methods Utilizing Low-Salinity Water

Experimental Core Flooding Investigation of New ZnO−γAl2O3 Nanocomposites for Enhanced Oil Recovery in Carbonate Reservoirs

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Product

Resources

About

Experimental Core Flooding Investigation of New ZnO−γAl₂O₃ Nanocomposites for Enhanced Oil Recovery in Carbonate Reservoirs