Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals

Esfandyari, Hamid; Hoseini, Atieh Haghighat; Shadizadeh, Seyed Reza; Davarpanah, Afshin

doi:10.1016/j.petrol.2020.108285

Cited by 22 publications

(9 citation statements)

References 52 publications

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“…The capillary penetration of wetting fluids into narrow spaces such as cylindrical (or square) tube and porous media is important in many industrial and natural processes. For example, wettability changes in the oil production process like the chemical enhanced oil recovery have a significant effect on capillary pressure, irreducible water saturation, and residual oil saturation [1][2][3][4]. In addition, capillary-driven flow is a fundamental phenomenon in important applications such as the development of high-performance heat transfer and thermal management systems.…”

Section: Introductionmentioning

confidence: 99%

Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures

et al. 2021

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Capillary-driven action is an important phenomenon which aids the development of high-performance heat transfer devices, such as microscale heat pipes. This study examines the capillary rise dynamics of n-butanol/water mixture in a single vertical capillary tube with different radii (0.4, 0.6, and 0.85 mm). For liquids, distilled water, n-butanol, and their blends with varying concentrations of butanol (0.3, 0.5, and 0.7 wt.%) were used. The results show that the height and velocity of the capillary rise were dependent on the tube radius and liquid surface tension. The larger the radius and the higher the surface tension, the lower was the equilibrium height (he) and the velocity of rise. The process of capillary rise was segregated into three characteristic regions: purely inertial, inertial + viscous, and purely viscous regions. The early stages (purely inertial and inertial + viscous) represented the characteristic heights h1 and h2, which were dominant in the capillary rise process. There were linear correlations between the characteristic heights (h1, h2, and he), tube radius, and surface tension. Based on these correlations, a linear function was established between each of the three characteristic heights and the consolidated value of tube radius and surface tension (σL/2πr2).

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Section: Introductionmentioning

confidence: 99%

Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures

et al. 2021

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“…Chemical flooding is one of the main technologies to further enhance oil recovery. Surfactant flooding improves oil recovery through the reduction of oil-water interfacial tension (Pan et al, 2020), wettability alteration of reservoir rock (Esfandyari et al, 2020a(Esfandyari et al, , 2020b and formation of micelles and microemulsion (Jing et al, 2020;Pal et al, 2018). The surfactants used mainly include cationic, anionic, nonionic and zwitterionic surfactants.…”

Section: Introductionmentioning

confidence: 99%

“…Zwitterionic surfactants can be divided into phosphate, sulfate, carboxylate and sulfonate types according to different anionic groups (Esfandyari et al, 2020c). Natrual surfactants, such as Cedar, which is extracted from Zizyphus Spina Christi trees, has abundant sources, low production cost and no adverse effects on reservoir and environment (Esfandyari et al, 2020a). The mechanism of EOR by polymer flooding is to improve sweep efficiency by reducing the water-oil mobility ratio and improve oil washing efficiency by viscoelasticity of polymer (Wang, 2018).…”

Section: Introductionmentioning

confidence: 99%

Wormlike micelles properties and oil displacement efficiency of a salt-tolerant C22-tailed amidosulfobetaine surfactant

Bai

Liu

Liang

et al. 2021

Energy Exploration & Exploitation

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Wormlike micelles formed by amidosulfobetaine surfactants present advantage in increasing viscosity, salt-tolerance, thermal-stability and shear-resistance. In the past few years, much attention has been paid on rheology behaviours of amidosulfobetaine surfactants that normally bear C18 or shorter tails. Properties and oil displacement performances of the wormlike micelles formed by counterparts bearing the long carbon chain have not been well documented. In this paper, the various properties of C22-tailed amidosulfobetaine surfactant EHSB under high salinity (TDS = 40g/L) are investigated systematically, including solubility, rheology and interfacial activity. Moreover, its oil displacement performance is studied for the first time. These properties are first compared with those of C16-tailed counterpart HDPS. Results show that the Krafft temperature( TK) of EHSB decreases from above 100°C to 53°C with the increase of TDS to 40 g/L. Increasing concentration of EHSB in the semidilute region induces micelle growth from rod-like micelles to wormlike micelles, and then the worms become entangled or branched to form viscoelastic micelle solution, which will increase the viscosity by several orders of magnitude. The interfacial tension with oil can be reduced to ultra-low level by EHSB solution with concentration below 4.5 mM. Possessing dual functions of mobility control and reducing interfacial tension, wormlike micelles formed by EHSB present a good displacement effect as a flooding system, which is more than 10% higher than HPAM with the same viscosity. Compared with the shorter tailed surfactant, the ultra-long tailed surfactant is more efficient in enhancing viscosity and reducing interfacial tension, so as to enhance more oil recovery. Our work provides a helpful insight for comprehending surfactant-based viscoelastic fluid and provides a new viscoelastic surfactant flooding agent which is quite efficient in chemical flooding of offshore oilfield.

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“…Polymer flooding is an efficient method by increasing the water viscosity and helping to more easily mobilize the oil phase through porous media [ 51 , 52 , 53 , 54 , 55 , 56 ]. Polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) are two of the most functional polymers for enhanced oil recovery processes that help to mobilize the oil phase by increasing water viscosity, wettability alteration, and interfacial tension reduction [ 57 , 58 , 59 ]. The following features would be essential in providing efficient performance during the polymer flooding processes among polymer properties.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Application of Nanoparticles and Polymer in Enhanced Oil Recovery Processes

Zhao

Dong

et al. 2021

Polymers

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Nowadays, the addition of nanoparticles to polymer solutions would be of interest; however, the feasible property of nanoparticles and their impact on oil recovery has not been investigated in more detail. This study investigates the rheology and capillary forces (interfacial tension and contact angle) of nanoparticles in the polymer performances during oil recovery processes. Thereby, a sequential injection of water, polymer, and nanoparticles; Nanosilica (SiO2) and nano-aluminium oxide (Al2O3) was performed to measure the oil recovery factor. Retention decrease, capillary forces reduction, and polymer viscoelastic behavior increase have caused improved oil recovery due to the feasible mobility ratio of polymer–nanoparticle in fluid loss. The oil recovery factor for polymer flooding, polymer–Al2O3, and polymer–SiO2 is 58%, 63%, and 67%, respectively. Thereby, polymer–SiO2 flooding would provide better oil recovery than other scenarios that reduce the capillary force due to the structural disjoining pressure. According to the relative permeability curves, residual oil saturation (Sor) and water relative permeability (Krw) are 29% and 0.3%, respectively, for polymer solution; however, for the polymer–nanoparticle solution, Sor and Krw are 12% and 0.005%, respectively. Polymer treatment caused a dramatic decrease, rather than the water treatment effect on the contact angle. The minimum contact angle for water and polymer treatment are about 21 and 29, respectively. The contact angle decrease for polymer treatment in the presence of nanoparticles related to the surface hydrophilicity increase. Therefore, after 2000 mg L−1 of SiO2 concentration, there are no significant changes in contact angle.

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Simultaneous evaluation of capillary pressure and wettability alteration based on the USBM and imbibition tests on carbonate minerals

Cited by 22 publications

References 52 publications

Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures

Effects of Tube Radius and Surface Tension on Capillary Rise Dynamics of Water/Butanol Mixtures

Wormlike micelles properties and oil displacement efficiency of a salt-tolerant C22-tailed amidosulfobetaine surfactant

Hybrid Application of Nanoparticles and Polymer in Enhanced Oil Recovery Processes

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