A comprehensive review of experimental evaluation methods and results of polymer micro/nanogels for enhanced oil recovery and reduced water production

Liu, Junchen; Almakimi, Abdulaziz; Wei, Mingzhen; Bai, Baojun; Hussein, Ibnelwaleed A.

doi:10.1016/j.fuel.2022.124664

Cited by 32 publications

(20 citation statements)

References 119 publications

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“…The duration of the gelling process, during which the apparent viscosity will continue to increase, is the time required for the chemical plugging agent to reach a specific viscosity or strength. Typically, the beginning setting time at C from A level and the final setting time at the ultimate strength from A level are used to determine the chemical plugging agent strength 65 . The glue‐forming time in this experiment, which is determined using the visual code approach and separated into starting and final setting times, is defined as the amount of time needed to reach a particular strength.…”

Section: Methodsmentioning

confidence: 99%

“…Typically, the beginning setting time at C from A level and the final setting time at the ultimate strength from A level are used to determine the chemical plugging agent strength. 65 The glue-forming time in this experiment, which is determined using the visual code approach and separated into starting and final setting times, is defined as the amount of time needed to reach a particular strength. Although this method is quicker, more practical, intuitive, and more widely applicable, it also has lower precision and ignores the impact of shear action.…”

Section: Determination Of Gluing Time and Gluing Strengthmentioning

confidence: 99%

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Research and performance evaluation of modified nano‐silica gel plugging agent

Zheng

Luo

2023

J of Applied Polymer Sci

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Due to the difficulties in plugging high-pressure injection wells, the short period of plugging, and the use of modified nano-silica, a novel chemical gel plugging agent has been created. Modification of silica using silane coupling agents, and using the aqueous free radical polymerization method synthesized chemical plugging agent with AM, AA, and DMDAAC. The optimum synthesis conditions were screened by single-factor analysis: mass ratio m(AM):m (AA):m(DMDAAC) = 8:1.5:1, modified nano-silica concentration of 1.0%, total monomer mass concentration of 8.0%, initiator concentration of 0.3%, the cross-linker concentration of 0.4%, and coagulant concentration of 0.6%. The performance of the chemical plugging agent was evaluated under the target oil formation conditions. The experimental results showed that the chemical plugging agent exhibited good temperature resistance at 40-100 C, good salt resistance at mineralization (0.5-2.5) Â 10 4 mg/L, and the chemical plugging agent breaks through pressure gradients of 1.12, 15.42 and 90.15 MPa/m in the wellbore, fracture and core, respectively, compared with most gel plugging agents, this plugging agent is more suitable for sealing with pressure work. After adding the breakout agent, the fluid after breakout is fluid-like with low viscosity, which is convenient for reverse discharge and will not cause harm to the reservoir and ensure the subsequent normal construction operation.

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Section: Methodsmentioning

confidence: 99%

Section: Determination Of Gluing Time and Gluing Strengthmentioning

confidence: 99%

Research and performance evaluation of modified nano‐silica gel plugging agent

Zheng

Luo

2023

J of Applied Polymer Sci

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“…Polymer micro/nanogels, which are developed based on PPG techniques, have attracted a lot of interest in the EOR field. In the size of micro/nanometers, these gel particles are designed to be conformance control agents for in-depth fluid diversion, and various experimental research has been undertaken to investigate the possibilities of applying micro/nanogels in oilfields . A simple geometry, such as a capillary tube, can be used to analyze the transport of a particle. − Li et al synthesized a microgel with a controlled diameter and elastic modulus by microfluidics.…”

Section: Application In Oil and Gas Recoverymentioning

confidence: 99%

Fabrications and Applications of Micro/Nanofluidics in Oil and Gas Recovery: A Comprehensive Review

et al. 2022

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Understanding fluid flow characteristics in porous medium, which determines the development of oil and gas oilfields, has been a significant research subject for decades. Although using core samples is still essential, micro/nanofluidics have been attracting increasing attention in oil recovery fields since it offers direct visualization and quantification of fluid flow at the pore level. This work provides the latest techniques and development history of micro/nanofluidics in oil and gas recovery by summarizing and discussing the fabrication methods, materials and corresponding applications. Compared with other reviews of micro/nanofluidics, this comprehensive review is in the perspective of solving specific issues in oil and gas industry, including fluid characterization, multiphase fluid flow, enhanced oil recovery mechanisms, and fluid flow in nano-scale porous media of unconventional reservoirs, by covering most of the representative visible studies using micro/nanomodels. Finally, we present the challenges of applying micro/nanomodels and future research directions based on the work.

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“…Jin et al 18 reported novel preformed gel particles with controllable density, which have favorable toughness due to the introduction of sodium montmorillonite, and they can expand at least 6 times after aging 6 days under hash reservoir conditions. Liu et al 25 indicated the current challenges and future research directions of micro/nanogel technologies. The conventional PPG particles usually can control the particle size, but they become weak in strength after further swelling.…”

Section: Introductionmentioning

confidence: 99%

Temperature- and Salt-Tolerant 2-Acrylamide-2-methylpropanesulfonic Acid/AM@SiO₂ Microgel Particles: Synthesis and Enhanced Oil Recovery Performance Evaluation

Wang,

Song

et al. 2023

Ind. Eng. Chem. Res.

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To simultaneously meet the demands of small size for easy transportation and injection as well as temperature and salinity resistance, 2-acrylamide-2-methylpropanesulfonic acid (AMPS)/AM@SiO2 microgel particles were synthesized to achieve a good performance for the in-depth profile control treatment. The characteristic functional group, mechanical property, and enhanced oil recovery (EOR) performance were comprehensively evaluated by Fourier infrared spectrometer, nanoindentation apparatus, and sand-packed tubes with different permeability conditions. AMPS contains active double bonds and sulfonic acid groups, which could enhance the temperature and salinity resistance of gel systems. Therefore, the AMPS/AM and AMPS/AM@SiO2 microgel particles have remarkable temperature and salinity tolerance and can be used at a high temperature (130 °C) and high salinity conditions (200,000 mg/L). The mechanical energy can be dissipated effectively by adding 1.0 wt % nano-SiO2 which could significantly improve the compression strength and elastic modulus. The elastic moduli of the AMPS/AM@SiO2 microgel particles (1500 mg/L) are 17.36 MPa, which is much higher than that of AMPS/AM microgel particles (10.44 MPa). This effect can improve the performance of the antierosion and compression deformation of the AMPS/AM@SiO2 microgel particles. The AMPS/AM@SiO2 microgel particles not only have good plugging performance and antierosion stability that can divert the subsequent injected fluid to lower permeable zones but also can achieve an in-depth secondary plugging effect through compression deformation and remigration. The performance of profile control and oil displacement of the AMPS/AM@SiO2 microgel particles has been verified from parallel sand-packed tubes simulating strong heterogeneous reservoirs. Compared with water flooding, the total oil recovery was increased by 22.8% after the injection of 0.5 PV AMPS/AM@SiO2 microgel particles, which is higher than that of AMPS/AM microgel particles (16.4%). This work not only provides a potential agent, i.e., AMPS/AM@SiO2 microgel particle, for in-depth profile control in high temperature and high salinity offshore oilfields but also helps for a better understanding of the mechanism of in-depth profile control and EOR for microgel particles.

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A comprehensive review of experimental evaluation methods and results of polymer micro/nanogels for enhanced oil recovery and reduced water production

Cited by 32 publications

References 119 publications

Research and performance evaluation of modified nano‐silica gel plugging agent

Research and performance evaluation of modified nano‐silica gel plugging agent

Fabrications and Applications of Micro/Nanofluidics in Oil and Gas Recovery: A Comprehensive Review

Temperature- and Salt-Tolerant 2-Acrylamide-2-methylpropanesulfonic Acid/AM@SiO₂ Microgel Particles: Synthesis and Enhanced Oil Recovery Performance Evaluation

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A comprehensive review of experimental evaluation methods and results of polymer micro/nanogels for enhanced oil recovery and reduced water production

Cited by 32 publications

References 119 publications

Research and performance evaluation of modified nano‐silica gel plugging agent

Research and performance evaluation of modified nano‐silica gel plugging agent

Fabrications and Applications of Micro/Nanofluidics in Oil and Gas Recovery: A Comprehensive Review

Temperature- and Salt-Tolerant 2-Acrylamide-2-methylpropanesulfonic Acid/AM@SiO2 Microgel Particles: Synthesis and Enhanced Oil Recovery Performance Evaluation

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Product

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Temperature- and Salt-Tolerant 2-Acrylamide-2-methylpropanesulfonic Acid/AM@SiO₂ Microgel Particles: Synthesis and Enhanced Oil Recovery Performance Evaluation