Simulation study of wettability alteration by deep eutectic solvent injection as an EOR agent for heavy oil reservoirs

O. Al-Rujaibi, Y. Al-Wahaibi, P. Pourafshary, R. Al-Hajri, N. Mosavat

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, simulation of enhancing heavy oil recovery via deep eutectic solvent (DES) injection was conducted. Several coreflooding tests have been completed and modelled to study the effect of DES injection on the interactions of oil/brine/rock in the porous media. The performance of the Choline Chloride: Malonic acid mixture at two molar ratios of 1:1 and 2:1 as DES1 and DES2, respectively, were studied. Results indicated that wettability alteration from weakly water-wet towards more water-wet and mixed-wet conditions was the dominant reason for the reduction of residual heavy oil saturation. DESs injection resulted in favourable and lower mobility ratio compared to the conventional waterflooding. At 45 °C, mobility ratio reduced by 26% in DES1 and 25.5% in DES2 compared to the waterflooding. Further increase in temperature up to 80 °C led to reduction in mobility ratio by 84.8% and 62.2% for DES1 and DES2, respectively. Hence, temperature found to be a key parameter in application of DES chemical methods in the field applications. The study also showed that DESs display better performance as a tertiary recovery rather than the secondary approach. Our experimental and simulation studies showed the potential application of DESs as cheap, non-toxic, recyclable, biodegradable and environmentally friendly chemicals for the EOR field applications.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalJournal of Petroleum Science and Engineering
Volume144
DOIs
Publication statusPublished - Aug 1 2016
Externally publishedYes

Fingerprint

Petroleum reservoirs
wettability
heavy oil
Eutectics
Wetting
Crude oil
Well flooding
simulation
chemical method
Enhanced recovery
brine
porous medium
temperature
chloride
saturation
Porous materials
Water
water
oil
acid

Keywords

  • Deep eutectic solvent
  • EOR agent for heavy oil reservoirs
  • Injection
  • Simulation study
  • Wettability alteration

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

Cite this

Simulation study of wettability alteration by deep eutectic solvent injection as an EOR agent for heavy oil reservoirs. / Al-Rujaibi, O.; Al-Wahaibi, Y.; Pourafshary, P.; Al-Hajri, R.; Mosavat, N.

In: Journal of Petroleum Science and Engineering, Vol. 144, 01.08.2016, p. 1-10.

Research output: Contribution to journalArticle

@article{9a5ada3c66aa4fa0813c15a2eae65478,
title = "Simulation study of wettability alteration by deep eutectic solvent injection as an EOR agent for heavy oil reservoirs",
abstract = "In this study, simulation of enhancing heavy oil recovery via deep eutectic solvent (DES) injection was conducted. Several coreflooding tests have been completed and modelled to study the effect of DES injection on the interactions of oil/brine/rock in the porous media. The performance of the Choline Chloride: Malonic acid mixture at two molar ratios of 1:1 and 2:1 as DES1 and DES2, respectively, were studied. Results indicated that wettability alteration from weakly water-wet towards more water-wet and mixed-wet conditions was the dominant reason for the reduction of residual heavy oil saturation. DESs injection resulted in favourable and lower mobility ratio compared to the conventional waterflooding. At 45 °C, mobility ratio reduced by 26{\%} in DES1 and 25.5{\%} in DES2 compared to the waterflooding. Further increase in temperature up to 80 °C led to reduction in mobility ratio by 84.8{\%} and 62.2{\%} for DES1 and DES2, respectively. Hence, temperature found to be a key parameter in application of DES chemical methods in the field applications. The study also showed that DESs display better performance as a tertiary recovery rather than the secondary approach. Our experimental and simulation studies showed the potential application of DESs as cheap, non-toxic, recyclable, biodegradable and environmentally friendly chemicals for the EOR field applications.",
keywords = "Deep eutectic solvent, EOR agent for heavy oil reservoirs, Injection, Simulation study, Wettability alteration",
author = "O. Al-Rujaibi and Y. Al-Wahaibi and P. Pourafshary and R. Al-Hajri and N. Mosavat",
year = "2016",
month = "8",
day = "1",
doi = "10.1016/j.petrol.2016.02.034",
language = "English",
volume = "144",
pages = "1--10",
journal = "Journal of Petroleum Science and Engineering",
issn = "0920-4105",
publisher = "Elsevier",

}

TY - JOUR

T1 - Simulation study of wettability alteration by deep eutectic solvent injection as an EOR agent for heavy oil reservoirs

AU - Al-Rujaibi, O.

AU - Al-Wahaibi, Y.

AU - Pourafshary, P.

AU - Al-Hajri, R.

AU - Mosavat, N.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - In this study, simulation of enhancing heavy oil recovery via deep eutectic solvent (DES) injection was conducted. Several coreflooding tests have been completed and modelled to study the effect of DES injection on the interactions of oil/brine/rock in the porous media. The performance of the Choline Chloride: Malonic acid mixture at two molar ratios of 1:1 and 2:1 as DES1 and DES2, respectively, were studied. Results indicated that wettability alteration from weakly water-wet towards more water-wet and mixed-wet conditions was the dominant reason for the reduction of residual heavy oil saturation. DESs injection resulted in favourable and lower mobility ratio compared to the conventional waterflooding. At 45 °C, mobility ratio reduced by 26% in DES1 and 25.5% in DES2 compared to the waterflooding. Further increase in temperature up to 80 °C led to reduction in mobility ratio by 84.8% and 62.2% for DES1 and DES2, respectively. Hence, temperature found to be a key parameter in application of DES chemical methods in the field applications. The study also showed that DESs display better performance as a tertiary recovery rather than the secondary approach. Our experimental and simulation studies showed the potential application of DESs as cheap, non-toxic, recyclable, biodegradable and environmentally friendly chemicals for the EOR field applications.

AB - In this study, simulation of enhancing heavy oil recovery via deep eutectic solvent (DES) injection was conducted. Several coreflooding tests have been completed and modelled to study the effect of DES injection on the interactions of oil/brine/rock in the porous media. The performance of the Choline Chloride: Malonic acid mixture at two molar ratios of 1:1 and 2:1 as DES1 and DES2, respectively, were studied. Results indicated that wettability alteration from weakly water-wet towards more water-wet and mixed-wet conditions was the dominant reason for the reduction of residual heavy oil saturation. DESs injection resulted in favourable and lower mobility ratio compared to the conventional waterflooding. At 45 °C, mobility ratio reduced by 26% in DES1 and 25.5% in DES2 compared to the waterflooding. Further increase in temperature up to 80 °C led to reduction in mobility ratio by 84.8% and 62.2% for DES1 and DES2, respectively. Hence, temperature found to be a key parameter in application of DES chemical methods in the field applications. The study also showed that DESs display better performance as a tertiary recovery rather than the secondary approach. Our experimental and simulation studies showed the potential application of DESs as cheap, non-toxic, recyclable, biodegradable and environmentally friendly chemicals for the EOR field applications.

KW - Deep eutectic solvent

KW - EOR agent for heavy oil reservoirs

KW - Injection

KW - Simulation study

KW - Wettability alteration

UR - http://www.scopus.com/inward/record.url?scp=84964343750&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84964343750&partnerID=8YFLogxK

U2 - 10.1016/j.petrol.2016.02.034

DO - 10.1016/j.petrol.2016.02.034

M3 - Article

VL - 144

SP - 1

EP - 10

JO - Journal of Petroleum Science and Engineering

JF - Journal of Petroleum Science and Engineering

SN - 0920-4105

ER -