Experimental investigation of the displacement flow mechanism and oil recovery in primary polymer flood operations

Mahon, Ruissein; Oluyemi, Gbenga; Oyeneyin, Babs; Balogun, Yakubu

doi:10.1007/s42452-021-04360-7

Cited by 9 publications

(2 citation statements)

References 49 publications

(50 reference statements)

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“…In polymer flooding, high viscosity like that of XG is needed for good mobility control. Hence, XG is a good biopolymer except for the associated cost [44].…”

Section: Preparation Of Xanthan Gum Gum Arabic and Terminalia Mantaly...mentioning

confidence: 99%

Comparative Analysis of the Effects of Monovalent and Divalent Ions on Imported Biopolymer-Xanthan Gum and Locally Formulated Biopolymers-Gum Arabic and Terminalia Mantaly

Ezeh

Ikiensikimama

Akaranta

2021

JENRR

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Aim: Polymer flooding is used for enhanced oil recovery. Only polymers that can withstand harsh environments work best. HPAM is mostly the polymer used for enhanced oil recovery because it is available and cheap, but it does not withstand high temperatures and high salinity reservoirs. Xanthan Gum withstands high temperatures and high salinity reservoirs, but it is expensive and plugs the reservoir. The aim of this study is to compare the salinity stability of gum Arabic and Terminalia Mantaly, a novel biopolymer, with commercial Xanthan gum. Study Design: Locally formulated biopolymers from gum Arabic exudates bought from Bauchi State in Nigeria and from Terminalia Mantaly exudates obtained from the University of Port Harcourt. The appropriate rheological tests were carried out at the laboratory. Place and Duration of Study: The laboratory experiments were carried out at the department of Petroleum Engineering, Covenant University, Ota in Ogun State of Nigeria between 2020 and 2021. Methodology: The gum Arabic, Terminalia Mantaly and Xanthan Gum powders were dissolved in deionized water to get various concentrations in ppm. The polymers were mixed and kept for 24 hours to achieve a homogenous solution. The Automated OFITE® Viscometer at different revolutions per minute (RPM) of 3 (Gel), 6, 30, 60, 100, 200, 300, and 600 was used to measure the rheological properties of the various concentrations before Sodium Chloride (NaCl) and Calcium Chloride (CaCl2) of various concentrations were added and allowed to hydrate for another 24 hours before measuring their rheological properties again. Results: The study showed that Xanthan Gum, Gum Arabic, and Terminalia Mantaly biopolymers can be used in high salinity reservoirs. Terminalia Mantaly, a novel biopolymer, is insensitive to salinity in monovalent and divalent ions. Conclusion: Xanthan gum exhibited high viscosity even at low concentrations. Gum Arabic exhibited good tolerance to salinity at NaCl 3.5%. Terminalia Mantaly was very stable with both monovalent and divalent ions. Divalent ions have more effects on polymers than monovalent ions in reservoirs. Recommendation: It is recommended that Terminalia Mantaly be investigated more, as it can replace imported biopolymers for Enhanced Oil Recovery (EOR).

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“…In polymer flooding, high viscosity like that of XG is needed for good mobility control. Hence, XG is a good biopolymer except for the associated cost [44].…”

Section: Preparation Of Xanthan Gum Gum Arabic and Terminalia Mantaly...mentioning

confidence: 99%

Comparative Analysis of the Effects of Monovalent and Divalent Ions on Imported Biopolymer-Xanthan Gum and Locally Formulated Biopolymers-Gum Arabic and Terminalia Mantaly

Ezeh

Ikiensikimama

Akaranta

2021

JENRR

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“…By the end of 2015, the cumulative produced reserves of polymer flooding had reached about 10 × 10 8 t, and enhanced oil recovery (EOR) was about 12.5% [2]. At present, polymer flooding or compound flooding field tests and applications have been carried out in Daqing, Shengli, Henan, Xinjiang, Dagang, Liaohe, and Bohai Oilfields, all of which have shown significant oil increasing effects [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Numerical Simulation of Polymer Flooding

Bai¹,

Li²,

Zhou³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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The numerical simulation of polymer flooding is a complex task as this process involves complex physical and chemical reactions, and multiple sets of characteristic parameters are required to properly set the simulation. At present, such characteristic parameters are mainly obtained by empirical methods, which typically result in relatively large errors. By analyzing experimentally polymer adsorption, permeability decline, inaccessible pore volume, viscosity-concentration relationship, and rheology, in this study, a conversion equation is provided to convert the experimental data into the parameters needed for the numerical simulation. Some examples are provided to demonstrate the reliability of the proposed approach.

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Fluorescent polyacrylamide nanospheres for concentration detection and fluorescent visual oil displacement experiments

Chen

Tang

Wang

et al. 2021

J of Applied Polymer Sci

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Polyacrylamide nanospheres are widely applied enhancing oil recovery polymers in low‐permeability oilfields. However, it is difficult to detect polyacrylamide nanospheres concentration in the produced fluid. In this study, fluorescent polyacrylamide nanospheres were synthesized via a reverse phase microemulsion method by the copolymerization of acrylamide and pyranine derivative. The structure, fluorescence properties, and oil displacement mechanisms of fluorescent polyacrylamide nanospheres were researched. The results indicated that the fluorescence intensity of the nanospheres had a distinct linear relationship with the concentration at a certain concentration range. The relative error of standard curve method was less than 1%. Alkaline conditions and aging process could diminish fluorescence intensity while temperature and ionic species had slightly effect on it. The oil displacement phenomenon of the nanospheres in T‐shaped microchannel, oil–water interface, and glass plate were observed clearly. This work provides support for the practical applications of fluorescent polyacrylamide nanospheres in oilfields.

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Experimental investigation of the displacement flow mechanism and oil recovery in primary polymer flood operations

Cited by 9 publications

References 49 publications

Comparative Analysis of the Effects of Monovalent and Divalent Ions on Imported Biopolymer-Xanthan Gum and Locally Formulated Biopolymers-Gum Arabic and Terminalia Mantaly

Comparative Analysis of the Effects of Monovalent and Divalent Ions on Imported Biopolymer-Xanthan Gum and Locally Formulated Biopolymers-Gum Arabic and Terminalia Mantaly

Experimental Study and Numerical Simulation of Polymer Flooding

Fluorescent polyacrylamide nanospheres for concentration detection and fluorescent visual oil displacement experiments

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