Polymer flooding and its combinations with other chemical injection methods in enhanced oil recovery

Ravindra, Pogaku; Fuat, Nur Hanisah Mohd; Sakar, Sarventhan; Woong, Zeong; Musa, Nurashiqin; Tajudin, Dayang Nurul Afiqah Awang; Morris, Leonard Owen

doi:10.1007/s00289-017-2106-z

Cited by 66 publications

(32 citation statements)

References 93 publications

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“…ASP flooding technique involves the injection of alkali, surfactant and polymer solutions to achieve EOR. Due to the integrated synergy of the individual component of the injected slug, this method is widely regarded as the most promising chemical EOR process [103]. The combined chemicals improve both pore scale and volumetric sweep efficiency.…”

Section: Alkali-surfactant-polymer (Asp) Floodingmentioning

confidence: 99%

An overview of chemical enhanced oil recovery: recent advances and prospects

et al. 2019

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Despite the progress made on renewable energy, oil and gas remains the world's primary energy source. Meanwhile, large amounts of oil deposits remain unrecovered after application of traditional oil recovery methods. Chemical enhanced oil recovery (EOR) has been adjudged as an efficient oil recovery technique to recover bypassed oil and residual oil trapped in the reservoir. This EOR method relies on the injection of chemicals to boost oil recovery. In this overview, an up-to-date synopsis of chemical EOR with detailed explanation of the chemicals used, and the mechanism governing their oil recovery application have been discussed. Challenges encountered in the application of the various conventional chemical EOR methods were highlighted, and solutions to overcome the challenges were proffered. Besides, the recent trend of incorporating nanotechnology and their synergistic effects on conventional chemicals stability and efficiency for EOR were also explored and analysed. Finally, laboratory results and field projects were outlined. The review of experimental studies shows that porescale mechanisms of conventional chemical EOR is enhanced by incorporating nanotechnology, hence, resulted in higher efficiency. Moreover, the use of ionic liquid chemicals and novel alkaline-cosolvent-polymer technology shows good potentials. This overview presents an extensive information about chemical EOR applications for sustainable energy production.

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Section: Alkali-surfactant-polymer (Asp) Floodingmentioning

confidence: 99%

An overview of chemical enhanced oil recovery: recent advances and prospects

et al. 2019

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“…The way to enhance oil recovery (EOR) is applied to most fields to extract the remaining oil as much as possible. [4][5][6][7] Among them, polyacrylamide (PAM) has been widely used in polymer flooding system, and it can increase the viscosity of the displacing phase while reducing the water/oil ratio so as to enlarge the swept volume. [8][9][10] However, polyacrylamide is very sensitive to salt.…”

Section: Introductionmentioning

confidence: 99%

“…After primary exploitation and secondary exploitation (water injection), about 30% oil can be produced. The way to enhance oil recovery (EOR) is applied to most fields to extract the remaining oil as much as possible 4‐7 . Among them, polyacrylamide (PAM) has been widely used in polymer flooding system, and it can increase the viscosity of the displacing phase while reducing the water/oil ratio so as to enlarge the swept volume 8‐10 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ultra‐high concentration of salt‐resistant polyacrylamide

Zhao

Peng

Zhang

et al. 2020

Polymers for Advanced Techs

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Glucose, an environmentally friendly and renewable material, is modified differently in various fields. In the petrochemical industry, water-soluble polymer with salt resistance plays an important role in the production in high-salinity reservoirs. In this work, N,N-dimethyl ethanolamine was reacted with glucose to synthesis a polymerizable monomer Gf (N,N-dimethylaminoethylglucoside). Gf was polymerized with acrylamide in aqueous solution to obtain copolymer glucose modified polyacrylamide. The copolymer was characterized by Fourier transform infrared spectroscopy, 1 H-NMRspectroscopy, scanning electron microscopy, and thermogravimetric analysis. The temperature resistance, salt resistance, and shear resistance of the copolymer solution were evaluated. The results shown that the copolymer had excellent saltthickening effect, favorable temperature resistance, and shear resistance. We expect that this work would provide a new method for designing polymers with excellent temperature resistance, salt resistance, and shear resistance.

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“…After the first stage and second stage, about 50% of the total oil reserve is still trapped in pore throats and cracks of the reservoir due to the surface tension and capillary forces. To further improve the recovery rate of oil, the polymer [2, 3], thermal [4, 5], chemical [6, 7] and microorganism [8, 9] flooding methods are usually used in the tertiary stage, which is also called the enhanced oil recovery (EOR) process. A further 5–35% of oil is expected to be recovered in the tertiary stage.…”

Section: Introductionmentioning

confidence: 99%

Low‐cost pyrophyllite‐based microfluidic device for the study of enhanced oil recovery

Gao

Cui

Fan

et al. 2019

Micro & Nano Letters

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This work proposed a novel method for the fabrication of pyrophyllite-based microfluidic devices for enhanced oil recovery (EOR). Pyrophyllite has good heat resistance, corrosion resistance and similar molecular structure to quartz sandstone, and is suitable for EOR research. A rectangular matrix of the pore structure is designed, representing an idealised porous medium and then fabricated on the surface of pyrophyllite substrate by using the micro-milling method. Finally, a layer of sealing film was applied on the surface of substrate to finish the bonding process. A droplet generator was also fabricated for the demonstration of the proposed technology. A series of displacement experiments with water flooding and surfactant flooding were conducted and the result was carefully analysed and discussed. Compared with the previous study using polymer-based or glass-based microfluidic devices as micromodels for the displacement study in oil recovery process, the surface properties of pyrophyllite are more close to real reservoirs and have compelling advantages as bulk material for microfluidic devices for the EOR study. This work has wide potential applications as the micromodels in EOR research, the proposed fabrication protocols of the pyrophyllite-based microfluidic device are rapid and low-cost, the on-site field test could also be conducted with the proposed technology.

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Polymer flooding and its combinations with other chemical injection methods in enhanced oil recovery

Cited by 66 publications

References 93 publications

An overview of chemical enhanced oil recovery: recent advances and prospects

An overview of chemical enhanced oil recovery: recent advances and prospects

Synthesis of ultra‐high concentration of salt‐resistant polyacrylamide

Low‐cost pyrophyllite‐based microfluidic device for the study of enhanced oil recovery

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