Mechanistic modeling of hybrid low salinity polymer flooding: Role of geochemistry

Al-Shalabi, Emad W.; Hassan, Anas M.

doi:10.1016/j.petrol.2021.110013

Cited by 27 publications

(16 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using a combined MRST-IPhreeqc simulator, Al Shalabi et al [ 12 ] developed a mechanistic model of hybrid low salinity polymer (LSP) flooding. In this study, a coupled numerical model was used to investigate the polymer–brine–rock geochemical interactions as well as the flow dynamics associated with LSP flooding.…”

Section: Numerical Studies and Field Applicationsmentioning

confidence: 99%

“…The geochemical software IPhreeqc, which is the interface module of PHREEQC, was combined with MATLAB Reservoir Simulation Toolbox (MRST). The impacts of polymer on polymer viscosity were captured using the Todd–Longstaff mixing model, inaccessible pore volume, permeability reduction, polymer adsorption, and salinity and shear rate effects [ 12 ]. The coupled simulator enables the real-time monitoring of the aqueous phase salinity and its impact on the polymer rheological characteristics, which is advantageous for LSP-based cEOR field applications.…”

Section: Numerical Studies and Field Applicationsmentioning

confidence: 99%

“…Secondary recovery involves the injection of water and gas whose purpose of maintaining reservoir pressure. Tertiary recovery, is any technique applied after secondary displacements, such as gas-EOR flooding, water-based EOR injection (i.e., low salinity), chemical flooding (i.e., polymer, surfactant, and alkaline surfactant polymer or ASP [ 9 , 11 ]), and hybrid-EOR (e.g., low salinity polymer flooding [ 12 ] and smart-water assisted foam flooding or SWAF Technology [ 13 , 14 , 15 , 16 , 17 , 18 ]).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Updated Perceptions on Polymer-Based Enhanced Oil Recovery toward High-Temperature High-Salinity Tolerance for Successful Field Applications in Carbonate Reservoirs

2022

Self Cite

View full text Add to dashboard Cite

The aging of the existing reservoirs makes the hydrocarbon extraction shift toward newer reserves, and harsh conditioned carbonates, which possess high temperature and high salinity (HTHS). Conventional polymer-flooding fails in these HTHS carbonates, due to precipitation, viscosity loss, and polymer adsorption. Therefore, to counteract these challenges, novel polymer-based cEOR alternatives employ optimized polymers, polymer–surfactant, and alkali–surfactant–polymer solutions along with hybrid methods, which have shown a potential to target the residual or remaining oils in carbonates. Consequently, we investigate novel polymers, viz., ATBS, Scleroglucan, NVP-based polymers, and hydrophobic associative polymers, along with bio-polymers. These selected polymers have shown low shear sensitivity, low adsorption, and robust thermal/salinity tolerance. Additionally, adding an alkali-surfactant to polymer solution produces a synergy effect of improved mobility control, wettability alteration, and interfacial-tension reduction. Thus, enhancing the displacement and sweep efficiencies. Moreover, low-salinity water can precondition high-salinity reservoirs before polymer flooding (hybrid method), to decrease polymer adsorption and viscosity loss. Thus, this paper is a reference for novel polymers, and their hybrid techniques, to improve polymer-based cEOR field applications under HTHS conditions in carbonates. Additionally, the recommendations can assist in project designs with reasonable costs and minimal environmental impact. The implication of this work will aid in supplementing the oil and gas energy sector growth, making a positive contribution to the Middle Eastern economy.

show abstract

Section: Numerical Studies and Field Applicationsmentioning

confidence: 99%

Section: Numerical Studies and Field Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Updated Perceptions on Polymer-Based Enhanced Oil Recovery toward High-Temperature High-Salinity Tolerance for Successful Field Applications in Carbonate Reservoirs

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…3 In addition, due to the high flexibility of polymer strands and the charge of molecular bonds, they do not function well at high salinities. 4,5 They have high adsorption behavior on carbonates and their adsorption rate increases in the high salinity environment for this type of reservoir; therefore, they are mostly used in sandstone reservoirs. 6 Natural polymers have also been used in EOR process, but their number is limited to a few common examples of cellulose, xanthan, and guar gum.…”

Section: ■ Introductionmentioning

confidence: 99%

Chemical-Enhanced Oil Recovery by Alkali/Sulfate Smart Water Flooding in Carbonate Reservoirs Using a Green Polymer Extracted from Plantago ovata Seed

Nowrouzi,

Mohammadi,

Manshad

2023

Energy Fuels

View full text Add to dashboard Cite

“…The current global energy crisis has shown that the significant contribution of oil and gas to the world energy supply is still irreplaceable. With growing calls to increase oil production, there is a need to develop novel techniques for recovering oil from depleted reservoirs [ 1 ]. Initial production from oil reservoirs is due to pressure depletion [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Application of Cellulosic Biopolymer for Enhanced Oil Recovery in Carbonate Cores under Harsh Conditions

et al. 2022

View full text Add to dashboard Cite

Polymer flooding is used to improve the viscosity of an injectant, thereby decreasing the mobility ratio and improving oil displacement efficiency in the reservoir. Thanks to their environmentally benign nature, natural polymers are receiving prodigious attention for enhanced oil recovery. Herein, the rheology and oil displacement properties of okra mucilage were investigated for its enhanced oil recovery potential at a high temperature and high pressure (HTHP) in carbonate cores. The cellulosic polysaccharide used in the study is composed of okra mucilage extracted from okra (Abelmoschus esculentus) via a hot water extraction process. The morphological property of okra mucilage was characterized with Fourier transform infrared (FTIR), while the thermal stability was investigated using a thermogravimetric analyzer (TGA). The rheological property of the okra mucilage was investigated for seawater salinity and high-temperature conditions using a TA rheometer. Finally, an oil displacement experiment of the okra mucilage was conducted in a high-temperature, high-pressure core flooding equipment. The TGA analysis of the biopolymer reveals that the polymeric solution was stable over a wide range of temperatures. The FTIR results depict that the mucilage is composed of galactose and rhamnose constituents, which are essentially found in polysaccharides. The polymer exhibited pseudoplastic behavior at varying shear rates. The viscosity of okra mucilage was slightly reduced when aged in seawater salinity and at a high temperature. Nonetheless, the cellulosic polysaccharide exemplified sufficiently good viscosity under high-temperature and high-salinity (HTHS) conditions. Finally, the oil recovery results from the carbonate core plug reveal that the okra mucilage recorded a 12.7% incremental oil recovery over waterflooding. The mechanism of its better displacement efficiency is elucidated

show abstract

Mechanistic modeling of hybrid low salinity polymer flooding: Role of geochemistry

Cited by 27 publications

References 29 publications

Updated Perceptions on Polymer-Based Enhanced Oil Recovery toward High-Temperature High-Salinity Tolerance for Successful Field Applications in Carbonate Reservoirs

Updated Perceptions on Polymer-Based Enhanced Oil Recovery toward High-Temperature High-Salinity Tolerance for Successful Field Applications in Carbonate Reservoirs

Chemical-Enhanced Oil Recovery by Alkali/Sulfate Smart Water Flooding in Carbonate Reservoirs Using a Green Polymer Extracted from Plantago ovata Seed

Experimental Study on the Application of Cellulosic Biopolymer for Enhanced Oil Recovery in Carbonate Cores under Harsh Conditions

Contact Info

Product

Resources

About