Improving Oil Recovery Efficiency in Niger Delta Reservoirs Using Corn Starch as a Local Polymer

Eseimokumoh, Imad Biboye

doi:10.47191/ijcsrr/v4-i11-07

Cited by 5 publications

(7 citation statements)

References 12 publications

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“…After the oil saturated the core sample, it began to push on the water (brine) from inside the core, allowing it to exit and accumulate in the cylinder. This process was continued until excess oil (just few drops) was discharged [ 53 ]. At this point, the oil injection process was stopped, and the volume of water produced during the oil injection was equal to the original oil in place (OOIP).…”

Section: Methodsmentioning

confidence: 99%

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

et al. 2023

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Significant amounts of oil remain in the reservoir after primary and secondary operations, and to recover the remaining oil, enhanced oil recovery (EOR) can be applied as one of the feasible options remaining nowadays. In this study, new nano-polymeric materials have been prepared from purple yam and cassava starches. The yield of purple yam nanoparticles (PYNPs) was 85%, and that of cassava nanoparticles (CSNPs) was 90.53%. Synthesized materials were characterized through particle size distribution (PSA), Zeta potential distribution, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and transmission electron microscopy (TEM). The performance of PYNPs in recovering oil was better than CSNPs, as found from the recovery experiments. Zeta potential distribution results confirmed the stability of PYNPs over CSNPs (−36.3 mV for PYNPs and −10.7 mV for CSNPs). The optimum concentration for these nanoparticles has been found from interfacial tension measurements and rheological properties, and it was 0.60 wt.% for PYNPs and 0.80 wt.% for CSNPs. A more incremental recovery (33.46%) was achieved for the polymer that contained PYNPs in comparison to the other nano-polymer (31.3%). This paves the way for a new technology for polymer flooding that may replace the conventional method, which depends on partially hydrolyzed polyacrylamide (HPAM).

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Section: Methodsmentioning

confidence: 99%

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

et al. 2023

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“…The output from water flooding is accumulated in the 50 ml cylinder and its quantity is estimated every 3 minutes. The water flooding is then resumed until one pore volume (1 PV) of water was injected [26].…”

Section: Flooding Experimentsmentioning

confidence: 99%

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

Al-Jaber¹,

Arsad²,

Tahir³

et al. 2023

Preprint

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Significant amount of oil remains in the reservoir after primary and secondary operations and to recover the remaining oil, enhanced oil recovery (EOR) can be applied as one of the feasible options remaining nowadays. In this study new nano polymeric materials have been prepared from purple yam and cassava starches. The yield of purple yam nanoparticles (PYNPs) was 85% and that of cassava nanoparticles (CSNPs) is 90.53%. Synthesized materials were characterized through particle size distribution (PSA), zeta potential distribution, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). The performance of PYNPs in recovering oil was better than CSNPs as found from recovery experiments. Zeta potential distribution results confirmed the stability of PYNPs over CSNPs (-36.3 mV for PYNPs and -10.7 mV for CSNPs). The optimum concentration for these nanoparticles has been found from interfacial tension measurements and rheological properties and it was 0.60 wt.% for PYNPs and 0.80 wt.% for CSNPs. More incremental recovery (33.46%) has achieved for the polymer that contained PYNPs in comparison to the other nano-polymer (31.3%). This opens the inception for a new technology for polymer flooding that may replace the conventional method that depends on partially hydrolyzed polyacrylamide (HPAM).

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“…Currently, there are 32 ASP projects worldwide, with 19 of them specifically implemented in China [ 15 ]. Technically, up-to-date ASP flooding can result in oil recovery that is 10% higher than polymer flooding and 20% higher than water flooding [ 16 ]. The existing stockpiles available for ASP flooding reach over 8300 million tons worldwide, with the Daqing oil field in China holding the potential to extract more than 1400 million tons alone [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation

Al-Jaber,

Arsad,

Bandyopadhyay

et al. 2023

Molecules

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Alkaline–surfactant–polymer (ASP) flooding, a recognized method for oil recovery, encounters limited use due to its expense. In addition, ASP’s best composition and injection sequence still remains uncertain today. This study explores conventional ASP flooding using PT SPR Langgak’s special surfactants, simulating Langgak oilfield conditions in Sumatra, Indonesia. By comparing the outcomes of this flooding technique with that of starch-assisted ASP performed in another study, the benefits of adding starch nanoparticles to flooding are evident. Nano-starch ASP increased oil recovery by 18.37%, 10.76%, and 10.37% for the three configurations investigated in this study. Water flooding preceded ASP flooding, and flooding operations were carried out at 60 °C. This study employed sodium hydroxide (NaOH), sodium carbonate (Na2CO3), and specialized surfactants from PT SPR. The adopted polymer is solely hydrolyzed polyacrylamide (HPAM) at 2000 ppm. Starch nanoparticles underwent comprehensive characterization and focused more on charge stability. Purple yam nanoparticles (PYNPs) exhibited remarkable stability at −36.33 mV, unlike cassava starch nanoparticles (CSNPs’) at −10.68 mV and HPAM’s at −27.13 mV. Surface properties affect interactions with fluids and rocks. Crystallinity, a crucial characterization, was assessed using Origin software 2019b. CSNPs showed 24.15% crystallinity, surpassing PYNPs’ 20.68%. Higher crystallinity benefits CSNPs’ thermal stability. The amorphous behavior found in PYNPs makes them less suitable if applied in harsh reservoirs. This research correlated with prior findings, reinforcing starch nanoparticles’ role in enhancing oil recovery. In summary, this study highlighted conventional ASP flooding using HPAM as the sole polymer and compared it with three formations that used two starch nanoparticles included with HPAM, assessing their impact on charge stability, crystallinity, and recovery rate to emphasize their importance in the oil recovery industry. Starch nanoparticles’ benefits and limitations guided further investigation in this study.

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Improving Oil Recovery Efficiency in Niger Delta Reservoirs Using Corn Starch as a Local Polymer

Cited by 5 publications

References 12 publications

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

Enhancing Oil Recovery by Polymeric Flooding with Purple Yam and Cassava Nanoparticles

Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation

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