A novel nanofluid of modified carbon black nanoparticles for enhanced oil recovery in low permeability reservoirs

Zhao, Guang; Liang, Lihao; Lv, Dongfang; Ji, Wen-Juan; You, Qing; Dai, Caili

doi:10.1016/j.petsci.2022.11.003

Cited by 15 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(5) Multiple light scattering stability tests showed that the stability of the modified BN was greatly improved, with a TSI value of only 0.46 for the modified BN Z5 solution. (6) The modified BN solution significantly improved the oil displacement effect in low-permeability reservoir cores. When the concentration of the modified BNs was 0.002 wt %, the recovery factor of crude oil in the core increased by 12.51 percentage points.…”

Section: Discussionmentioning

confidence: 92%

“…1,2 However, the development of low-permeability reservoirs faces numerous challenges, such as tight rocks, small pores, and poor formation permeability, leading to increased waterflooding pressure, limited sweep efficiency, and low recovery degrees. 3,4 In recent years, the development and application of nanotechnology in the field of oil exploration have become increasingly widespread, 5,6 with many nanomaterials becoming important forces in improving oil recovery. 7−10 Especially nanoparticles, which exhibit outstanding performance in reducing interfacial tension and altering rock wettability, significantly enhance oil displacement efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the development and application of nanotechnology in the field of oil exploration have become increasingly widespread, , with many nanomaterials becoming important forces in improving oil recovery. − Especially nanoparticles, which exhibit outstanding performance in reducing interfacial tension and altering rock wettability, significantly enhance oil displacement efficiency. − Zhang et al studied the oil displacement mechanism of silica nanoparticles in water-wet Berea sandstone with a recovery rate of 50%. They also analyzed the adaptability of the nanoparticles in high-salinity water.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dispersion Stability and Oil Displacement Effect of Modified Black Nanosheet

Zhu,

Qin,

Gao

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dispersion Stability and Oil Displacement Effect of Modified Black Nanosheet

Zhu,

Qin,

Gao

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

“…After they enter the pores, they will interact with crude oil, such as emulsifying, reducing interfacial tension, changing wettability, etc., all of which improve the oil displacement efficiency during water flooding and enhance oil recovery. At present, there are many nanomaterials used in low-permeability reservoirs, including inorganic particles such as nano-silica (nano-SiO 2 ), , nano-titanium dioxide (nano-TiO 2 ), , expanded graphene, and organic particles such as nano-scale polymeric microspheres. , Among these, nano-scale flaky particles (such as nano-molybdenum disulfide sheets) hold great potential due to their flaky characteristics to effectively remove the oil film from the rock surface. − For this reason, Hou et al referred to this material as the black nanosheet (BN). Its bilayer thickness was 1.2 nm, and its size was about 60 nm × 80 nm. , However, there have been limited reports regarding nano-BN on an even smaller scale.…”

Section: Introductionmentioning

confidence: 99%

Black Nanosheet-Enhanced Low-Salinity Water System for Improving Oil Recovery in a Low-Permeability Conglomerate Reservoir

et al. 2023

View full text Add to dashboard Cite

Black nanosheets (BNs) and low-salinity water (LSW) flooding are two effective methods for improving oil recovery in low-permeability or ultra-low-permeability petroleum reservoirs. The former focuses on emulsification and interfacial tension reduction, while the latter focuses on wettability alteration. Combining BN with LSW is expected to achieve dual effects in oil recovery. However, there has been no research on the combination effect of BN and LSW on conglomerate reservoirs. Therefore, this study aims to investigate the oil imbibition mechanism of the BN–LSW composite system in the tight reservoir of Mahu Oilfield. The interfacial properties of the BN–LSW composite system were evaluated in terms of the oil–water interfacial tension, crude oil emulsification capability, and three-phase contact angle between oil, water, and rock. Through the imbibition experiment of the natural cores in Mahu Oilfield, the imbibition differences between single systems and the BN–LSW composite system were compared. The results showed that the BN–LSW composite system had minimal impact on the interfacial tension between oil and water compared to formation brine, LSW, and BN solution. However, the composite system demonstrated a significant emulsification effect with Mahu crude oil and alterated the wettability of the core. Compared to the single systems, the imbibition rate of the BN–LSW composite system was higher, resulting in an improved imbibition effect. The NMR T 2 signal explained the synergistic core imbibition effect of the BN–LSW composite system at the microscopic scale. The research outcomes of this study can provide a new approach for developing low-permeability and ultra-low-permeability reservoirs, holding practical value and reference significance.

show abstract

“…With the development of nanotechnology, nanofluids are widely used in oilfield development to enhance oil recovery. − Nanofluid is a colloidal suspension formed by nanosized particles dispersed in water, and its suspension stability is a prerequisite for the stability of nanofluid. , Nanoparticles have nanoscale size and a large specific surface area. , Through surface modification, nanoparticles exhibit amphiphilic hydrophilicity and lipophilicity. They can improve the stability of nanofluids, reduce IFT, and achieve the ability of wettability alteration, thus achieving the purpose of EOR. , Similarly, the adsorption loss of nanoparticles on the surface of porous media is caused by the existence of Brownian motion and the concentration difference between solid and liquid interface in the migration of nanofluids in the porous media …”

Section: Introductionmentioning

confidence: 99%

Study on the Adsorption Laws and Enhanced Oil Recovery of Nanofluid Prepared by Amphiphilic Nanosheets in the Low-Permeability Porous Media

Xiao,

Hou

2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The nanofluid prepared by spherical nanoparticles has a good enhanced oil recovery effect in low-permeability reservoirs. However, a huge adsorption loss has been produced in the process of oil displacement, reducing the oil recovery and increasing the production cost. In this paper, the static adsorption experiments under different influence factors, the dynamic desorption experiment on porous media, and the core flooding experiment are carried out with the nanofluids prepared by self-developed amphiphilic nanosheets (ODA-MoS 2 ). Furthermore, the laws of adsorption kinetics and thermodynamics of the ODA-MoS 2 nanofluid on the porous media surfaces are proposed, and the effect on improving oil recovery is clarified ulteriorly. The results show that the physical adsorption of the system on the surface of oil sand is caused by diffusion (concentration difference), electrostatic interaction, and hydrogen bonding. There is a monolayer adsorption existing on the porous media surface, which is consistent with Langmuir isothermal adsorption model. The salinity and temperature have an inhibitory effect on the adsorption of the ODA-MoS 2 nanofluid; the adsorption capacity increases with the increase in concentration and reaches the equilibrium value of 1.68 mg/g at 75 mg/L. Moreover, the adsorption rate of the ODA-MoS 2 nanofluid is the lowest, only 14.71% compared to that of SiO 2 , whereas the oil recovery increases by 18.59% compared to primary water flooding under the concentration of 75 mg/L. Therefore, the ODA-MoS 2 nanofluid with a lower adsorption capacity is more effective in improving oil recovery in low-permeability reservoirs, and it is expected to be applied on a large scale for oil extraction in low-permeability reservoirs.

show abstract

A novel nanofluid of modified carbon black nanoparticles for enhanced oil recovery in low permeability reservoirs

Cited by 15 publications

References 47 publications

Dispersion Stability and Oil Displacement Effect of Modified Black Nanosheet

Dispersion Stability and Oil Displacement Effect of Modified Black Nanosheet

Black Nanosheet-Enhanced Low-Salinity Water System for Improving Oil Recovery in a Low-Permeability Conglomerate Reservoir

Study on the Adsorption Laws and Enhanced Oil Recovery of Nanofluid Prepared by Amphiphilic Nanosheets in the Low-Permeability Porous Media

Contact Info

Product

Resources

About