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Wang K, Luo M, Li M, Gu X, Li X, Fan Q, Pu C, Wang L. Gelation and Plugging Performance of Low-Concentration Partially Hydrolyzed Polyacrylamide/Polyethyleneimine System at Moderate Temperature and in Fractured Low-Permeability Reservoir. Polymers (Basel) 2024; 16:1585. [PMID: 38891531 PMCID: PMC11174614 DOI: 10.3390/polym16111585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
HPAM/PEI gel is a promising material for conformance control in hydrocarbon reservoirs. However, its use in low-permeability reservoirs is limited by the high polymer concentrations present. In this study, the gelation performance of an HPAM/PEI system with HPAM < 2.0 wt.% was systematically investigated. The gelation time for HPAM concentrations ranging from 0.4 to 2.0 wt.% varied from less than 1 h to 23 days, with the highest gel strength identified as grade H. The hydrodynamic radius manifested the primary effect of HPAM on the gelation performance. Branched PEI provided superior gelation performance over linear PEI, and the gelation performance was only affected when the molecular weight of the PEI varied significantly. The optimal number ratio of the PEI-provided imine groups and the HPAM-provided carboxylic acid functional groups was approximately 1.6:1~5:1. Regarding the reservoir conditions, the temperature had a crucial effect on the hydrodynamic radius of HPAM. Salts delayed the gelation process, and the order of ionic influence was Ca2+ > Na+ > K+. The pH controlled the crosslinking reaction, primarily due to the protonation degree of PEI and the hydrolysis degree of HPAM, and the most suitable pH was approximately 10.5. Plugging experiments based on a through-type fracture showed that multi-slug plugging could significantly improve the plugging performance of the system, being favorable for its application in fractured low-permeability reservoirs.
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Affiliation(s)
- Kai Wang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
| | - Mingliang Luo
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
| | - Mingzhong Li
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
| | - Xiaoyu Gu
- College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China;
| | - Xu Li
- School of Vehicle and Energy, Yanshan University, Qinhuangdao 066004, China;
| | - Qiao Fan
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
| | - Chunsheng Pu
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
| | - Liangliang Wang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China; (K.W.); (M.L.); (Q.F.); (C.P.); (L.W.)
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2
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Khattab H, Gawish AA, Gomaa S, Hamdy A, El-Hoshoudy AN. Assessment of modified chitosan composite in acidic reservoirs through pilot and field-scale simulation studies. Sci Rep 2024; 14:10634. [PMID: 38724544 PMCID: PMC11082220 DOI: 10.1038/s41598-024-60559-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024] Open
Abstract
Chemical flooding through biopolymers acquires higher attention, especially in acidic reservoirs. This research focuses on the application of biopolymers in chemical flooding for enhanced oil recovery in acidic reservoirs, with a particular emphasis on modified chitosan. The modification process involved combining chitosan with vinyl/silane monomers via emulsion polymerization, followed by an assessment of its rheological behavior under simulated reservoir conditions, including salinity, temperature, pressure, and medium pH. Laboratory-scale flooding experiments were carried out using both the original and modified chitosan at conditions of 2200 psi, 135,000 ppm salinity, and 196° temperature. The study evaluated the impact of pressure on the rheological properties of both chitosan forms, finding that the modified composite was better suited to acidic environments, showing enhanced resistance to pressure effects with a significant increase in viscosity and an 11% improvement in oil recovery over the 5% achieved with the unmodified chitosan. Advanced modeling and simulation techniques, particularly using the tNavigator Simulator on the Bahariya formations in the Western Desert, were employed to further understand the polymer solution dynamics in reservoir contexts and to predict key petroleum engineering metrics. The simulation results underscored the effectiveness of the chitosan composite in increasing oil recovery rates, with the composite outperforming both its native counterpart and traditional water flooding, achieving a recovery factor of 48%, compared to 39% and 37% for native chitosan and water flooding, thereby demonstrating the potential benefits of chitosan composites in enhancing oil recovery operations.
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Affiliation(s)
- Hamid Khattab
- Petroleum Engineering Department, Faculty of Petroleum & Mining Engineering, Suez University, Cairo, Egypt
| | - Ahmed A Gawish
- Petroleum Engineering Department, Faculty of Petroleum & Mining Engineering, Suez University, Cairo, Egypt
| | - Sayed Gomaa
- Mining and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Cairo, Egypt
- Department of Petroleum Engineering, Faculty of Engineering & Technology, Future University in Egypt, New Cairo, Egypt
| | - Abdelnaser Hamdy
- Reservoir Engineering Department, Khalda Petroleum Company, Cairo, Egypt
| | - A N El-Hoshoudy
- PVT lab, Production Department, Egyptian Petroleum Research Institute, Cairo, 11727, Egypt.
- PVT service center, Egyptian Petroleum Research Institute, Cairo, 11727, Egypt.
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3
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Shi B, Zhang G, Zhang L, Wang C, Li Z, Chen F. Study on a Strong Polymer Gel by the Addition of Micron Graphite Oxide Powder and Its Plugging of Fracture. Gels 2024; 10:304. [PMID: 38786221 PMCID: PMC11121390 DOI: 10.3390/gels10050304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
It is difficult to plug the fracture water channeling of a fractured low-permeability reservoir during water flooding by using the conventional acrylamide polymer gel due to its weak mechanical properties. For this problem, micron graphite powder is added to enhance the comprehensive properties of the acrylamide polymer gel, which can improve the plugging effect of fracture water channeling. The chemical principle of this process is that the hydroxyl and carboxyl groups of the layered micron graphite powder can undergo physicochemical interactions with the amide groups of the polyacrylamide molecule chain. As a rigid structure, the graphite powder can support the flexible skeleton of the original polyacrylamide molecule chain. Through the synergy of the rigid and flexible structures, the viscoelasticity, thermal stability, tensile performance, and plugging ability of the new-type gel can be significantly enhanced. Compared with a single acrylamide gel, after adding 3000 mg/L of micrometer-sized graphite powder, the elastic modulus, the viscous modulus, the phase transition temperature, the breakthrough pressure gradient, the elongation at break, and the tensile stress of the acrylamide gel are all greatly improved. After adding the graphite powder to the polyacrylamide gel, the fracture water channeling can be effectively plugged. The characteristics of the networked water flow channel are obvious during the injected water break through the gel in the fracture. The breakthrough pressure of water flooding is high. The experimental results are an attempt to develop a new gel material for the water plugging of a fractured low-permeability reservoir.
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Affiliation(s)
- Bin Shi
- Hubei Key Laboratory of Drilling and Production Engineering for Oil and Gas, School of Petroleum Engineering, Yangtze University, Wuhan 430100, China; (B.S.); (Z.L.)
- Research Institute of Shaanxi Yanchang Petroleum (Group) Co., Ltd., Xi’an 710075, China;
| | - Guangming Zhang
- Hubei Key Laboratory of Drilling and Production Engineering for Oil and Gas, School of Petroleum Engineering, Yangtze University, Wuhan 430100, China; (B.S.); (Z.L.)
| | - Lei Zhang
- Hubei Provincial Key Laboratory of Oil and Gas Exploration and Development Theory and Technology, Department of Petroleum Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China;
| | - Chengjun Wang
- College of Chemistry and Chemical Engineering, Xi’an University of Petroleum, Xi’an 710065, China;
| | - Zhonghui Li
- Hubei Key Laboratory of Drilling and Production Engineering for Oil and Gas, School of Petroleum Engineering, Yangtze University, Wuhan 430100, China; (B.S.); (Z.L.)
| | - Fangping Chen
- Research Institute of Shaanxi Yanchang Petroleum (Group) Co., Ltd., Xi’an 710075, China;
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4
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Yin Q, Batbatan CG, Li Y, Zhang Y, Yang Q, Xiao A. Preparation and Characterization of Carrageenase Immobilized onto Polyethyleneimine-Modified Pomelo Peel. J Microbiol Biotechnol 2024; 34:132-140. [PMID: 37957113 PMCID: PMC10840462 DOI: 10.4014/jmb.2304.04029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/03/2023] [Accepted: 06/07/2023] [Indexed: 11/15/2023]
Abstract
In this study, carrageenase immobilization was evaluated with a concise and efficient strategy. Pomelo peel cellulose (PPC) modified by polyethyleneimine (PEI) using the physical absorption method was used as a carrier to immobilize carrageenase and achieved repeated batch catalysis. In addition, various immobilization and reaction parameters were scrutinized to enhance the immobilization efficiency. Under the optimized conditions, the enzyme activity recovery rate was more than 50% and 4.1 times higher than immobilization with non-modified pomelo peels. The optimum temperature and pH of carrageenase after immobilization by PEI-modified pomelo peel, at 60°C and 7.5 respectively, were in line with the free enzyme. The temperature resistance was reduced, inconsistent with free enzyme, and pH resistance was increased. A significant loss of activity (46.8%) was observed after reusing it thrice under optimal reaction conditions. In terms of stability, the immobilized enzyme conserved 76.0% of the initial enzyme activity after 98 days of storage. Furthermore, a modest decrease in the kinetic constant (Km) value was observed, indicating the improved substrate affinity of the immobilized enzyme. Therefore, modified pomelo peel is a verified and promising enzyme immobilization system for the synthesis of inorganic solvents.
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Affiliation(s)
- Qin Yin
- College of Biological and Food Engineering, Suzhou University, Suzhou, Anhui, 234000, P.R. China
- Department of Biology, Central Mindanao University, Maramag, Bukidnon, 8710, Philippines
| | | | - Yongxing Li
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, 361021, P.R. China
| | - Yonghui Zhang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, 361021, P.R. China
| | - Qiuming Yang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, 361021, P.R. China
| | - Anfeng Xiao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, 361021, P.R. China
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5
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Khattab H, Gawish AA, Hamdy A, Gomaa S, El-hoshoudy AN. Assessment of a Novel Xanthan Gum-Based Composite for Oil Recovery Improvement at Reservoir Conditions; Assisted with Simulation and Economic Studies. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2024. [DOI: 10.1007/s10924-023-03153-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2023] [Indexed: 07/05/2024]
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6
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de Lima LF, de Araujo WR. A highly efficient and portable laser-scribed graphene-based electrochemical system for forensic-oriented determination of acepromazine. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:4467-4476. [PMID: 37644817 DOI: 10.1039/d3ay00815k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Acepromazine (ACP) is a phenothiazine derivative drug commonly used as a tranquilizer veterinary medication due to its sedative properties. Benefiting from sedative properties, ACP has emerged as a drug of abuse and has been associated with drug-facilitated sexual assaults. Herein, we report, for the first time, the electrochemical behavior of ACP using a miniaturized and environmentally friendly laser-scribed graphene-based (LSG) sensor fabricated on a polyetherimide (PEI) substrate. The LSG device presented high porosity, as demonstrated by scanning electron microscopy (SEM). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements of the PEI-LSG electrode confirmed the enhanced electroactive area (3.1-fold increase) caused by the rough surface and revealed a low charge transfer resistance of the electrode material, with a heterogeneous electron transfer rate constant (k0) of 8.66 × 10-3 cm s-1 for potassium ferricyanide redox probe. A simple and accurate method was applied to quantify ACP by using square wave voltammetry (SWV) under optimized experimental conditions, which exhibited high sensitivity (0.686 ± 0.008 A L mol-1 cm-2) and a low limit of detection (LOD) of 7.43 × 10-8 mol L-1, with a linear concentration ranging from 0.5 to 100 μmol L-1 ACP. Aiming for on-site analysis, the PEI-LSG sensor was integrated with a miniaturized potentiostat controlled by using a smartphone and applied as proof of applicability to ACP detection in commercial beverage and synthetic urine samples. These studies demonstrated adequate recoveries, ranging from 95.1% to 115.8%. The analytical parameters highlight the robustness and reliability of the proposed method for analyses of ACP directly at a potential crime scene.
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Affiliation(s)
- Lucas F de Lima
- Portable Chemical Sensors Lab, Department of Analytical Chemistry, Institute of Chemistry, State University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil.
| | - William R de Araujo
- Portable Chemical Sensors Lab, Department of Analytical Chemistry, Institute of Chemistry, State University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil.
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Tan X, Zhang J, Wang Y, Li M, Liu J, Zhu Z. Application of a Salt-Resistant In Situ Cross-Linked Terpolymer Gel for the Daqing Oilfield. ACS OMEGA 2023; 8:22223-22229. [PMID: 37360457 PMCID: PMC10286091 DOI: 10.1021/acsomega.3c02446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023]
Abstract
Pubei Block, which is a subdivision of Daqing Oilfield, presents a challenging environment for conformance control due to its high temperature (average 80 °C) and salinity (13,451 mg/L), making it difficult for the polyacrylamide-based gel to maintain the necessary gel strength. To address this issue, this study aims to evaluate the feasibility of using a terpolymer in situ gel system that provides greater temperature and salinity resistance and pore adaptation. The terpolymer used here consists of acrylamide, acrylamido-2-methylpropane sulfonic acid, and N,N'-dimethylacrylamide. We determined that a formula with a hydrolysis degree of 15.15%, a polymer concentration of 600 mg/L, and a polymer-cross-linker ratio of 2.8 yields the greatest gel strength. The hydrodynamic radius of the gel was found to be 0.39 μm, indicating no conflict with the pore and pore-throat sizes determined by the CT scan. In the core-scale evaluation, the gel treatment improved oil recovery by 19.88%, of which 9.23% was through gelant injection and 10.65% through post water injection. A pilot test began in 2019 and has continued for 36 months until now. Within this period, the oil recovery factor increased by 9.82%. The number is likely to keep going up until the water cut (so far 87.4%) reaches the economic limit.
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Affiliation(s)
- Xinjian Tan
- Laboratory
of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, People’s Republic
of China
| | - Jihong Zhang
- Laboratory
of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, People’s Republic
of China
| | - Yanan Wang
- Laboratory
of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, People’s Republic
of China
| | - Ming Li
- Laboratory
of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, People’s Republic
of China
| | - Jiamin Liu
- Laboratory
of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University, Daqing, Heilongjiang 163318, People’s Republic
of China
| | - Zhengjun Zhu
- Exploration
and Development Research Institute, CNPC Tarim Oilfield Branch, Tarim, Xinjiang 841000, People’s
Republic of China
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Bamboo Nanocellulose/Montmorillonite Nanosheets/Polyethyleneimine Gel Adsorbent for Methylene Blue and Cu(II) Removal from Aqueous Solutions. Gels 2023; 9:gels9010040. [PMID: 36661806 PMCID: PMC9858328 DOI: 10.3390/gels9010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 01/06/2023] Open
Abstract
In recent years, the scarcity of pure water resources has received a lot of attention from society because of the increasing amount of pollution from industrial waste. It is very important to use low-cost adsorbents with high-adsorption performance to reduce water pollution. In this work, a gel adsorbent with a high-adsorption performance on methylene blue (MB) and Cu(II) was prepared from bamboo nanocellulose (BCNF) (derived from waste bamboo paper) and montmorillonite nanosheet (MMTNS) cross-linked by polyethyleneimine (PEI). The resulting gel adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (SEM), X-ray photoelectron spectroscopic (XPS), etc. The results indicated that the MB and Cu(II) adsorption capacities of the resulting gel adsorbent increased with the solution pH, contact time, initial concentration, and temperature before equilibrium. The adsorption processes of MB and Cu(II) fitted well with the fractal-like pseudo-second-order model. The maximal adsorption capacities on MB and Cu(II) calculated by the Sips model were 361.9 and 254.6 mg/g, respectively. The removal of MB and Cu(II) from aqueous solutions mainly included electrostatic attraction, ion exchange, hydrogen bonding interaction, etc. These results suggest that the resulting gel adsorbent is an ideal material for the removal of MB and Cu(II) from aqueous solutions.
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Immobilization of Thermomyces lanuginosus lipase on a new hydrophobic support (Streamline phenyl™): strategies to improve stability and reusability. Enzyme Microb Technol 2022; 163:110166. [DOI: 10.1016/j.enzmictec.2022.110166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
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10
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Thermo-/pH-Dual-Sensitive PEG/PAMAM Nanogel: Reaction Dynamics and Plugging Application of CO 2 Channeling. Gels 2022; 8:gels8100683. [PMID: 36286184 PMCID: PMC9602110 DOI: 10.3390/gels8100683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/06/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022] Open
Abstract
Smart hydrogels, owing to their exceptional viscoelastic and deformable capacity in response to environmental stimulation involving temperature and pH, have been successfully applied in oilfields for purposes such as water and/or gas shutoff treatments. However, the CO2 breakthrough problem in low permeability reservoirs has not been well solved. In this work, a rheological method-based Avrami dynamics model and Dickinson dynamics model were employed to investigate the dynamic gelation process of thermo-/pH-dual-sensitive PEG/PAMAM nanogels to further our understanding of the microstructure of their gelation and pertinence plugging application. Plugging experiments were performed by alternating injections of CO2 and hydrogel solution in a slug type on three fractured low permeability cores with a backpressure of 13 MPa. The nanogels presented a secondary growth pattern from three to one dimension from micrometer to nanometer size with a morphological transformation from a sphere to an irregular ellipsoid or disk shape. The phase transition temperature was 50 °C, and the phase transition pH was 10. If both or either were below these values, the hydrogel swelled; otherwise, it shrank. Plugging results show that the plugging efficiency was higher than 99%. The maximum breakthrough pressure was 19.93 MPa, and the corresponding residual pressure remained 17.64 MPa for a 10 mD core, exhibiting great plugging performance and high residual resistance after being broken through by CO2.
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Sun Y, Zhang H, Li Q, Vardhanabhuti B, Wan C. High lignin-containing nanocelluloses prepared via TEMPO-mediated oxidation and polyethylenimine functionalization for antioxidant and antibacterial applications. RSC Adv 2022; 12:30030-30040. [PMID: 36329928 PMCID: PMC9585889 DOI: 10.1039/d2ra04152a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/27/2022] [Indexed: 11/24/2022] Open
Abstract
Lignin-containing nanocelluloses (LNCs) have attracted tremendous research interest in recent years due to less complex extraction processes and more abundant functionality compared to lignin-free nanocelluloses. On the other hand, traditional defibrillation primarily based on bleached pulp would not be readily applied to lignin-containing pulps due to their complex compositions. This study was focused on LNC extraction from lignin-containing pulp via 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation. Three types of switchgrass pulp with varying composition were prepared using different acid-catalyzed pretreatments. The pulps contained as high as 45.76% lignin but minor/no hemicellulose, corresponding to up to 23.72% lignin removal and 63.75-100% hemicellulose removal. TEMPO-mediated oxidation yielded 52.9-81.9% LNCs from respective pulps. The as-produced LNCs possessed aspect ratios as high as 416.5, and carboxyl contents of 0.442-0.743 mmol g-1 along with ζ-potential of -50.4 to -38.3 mV. The TEMPO-oxidized LNCs were further modified by polyethylenimine (PEI), which endowed the LNCs with positive charges plus antioxidant and antibacterial activities. Specifically, the PEI-modified LNCs almost fully scavenged 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radicals at 50 mg L-1 and suppressed the growth of Gram-positive Staphylococcus aureus at 250 μg mL-1.
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Affiliation(s)
- Yisheng Sun
- Department of Biomedical, Biological, and Chemical Engineering, University of MissouriColumbiaMissouri 65211USA+1 573 884 7882
| | - Hanwen Zhang
- Department of Biomedical, Biological, and Chemical Engineering, University of MissouriColumbiaMissouri 65211USA+1 573 884 7882
| | - Qianwei Li
- Department of Biomedical, Biological, and Chemical Engineering, University of MissouriColumbiaMissouri 65211USA+1 573 884 7882
| | - Bongkosh Vardhanabhuti
- Division of Food, Nutrition & Exercise Sciences, University of MissouriColumbiaMissouri 65211USA
| | - Caixia Wan
- Department of Biomedical, Biological, and Chemical Engineering, University of MissouriColumbiaMissouri 65211USA+1 573 884 7882
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Ghriga MA, Khoukh A, Lebouachera SEI, Grassl B. NMR investigation on the thermogelation of partially hydrolysed polyacrylamide/polyethylenimine mixtures. SOFT MATTER 2022; 18:7075-7081. [PMID: 36082790 DOI: 10.1039/d2sm00996j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Since the introduction of polyethylenimine (PEI)/acrylamide-based polymer gel systems in the late 90's, the literature knowledge on the crosslinking mechanisms between the various polymers (PAM, PHPA, and PatBA) and the crosslinker (PEI) was only limited to observations on gelation times and gel strength variations compared to other gel systems. In this paper, classic proton and carbon nuclear magnetic resonance "NMR" experiments and advanced 2D DOSY and NOESY techniques were employed for studying the interactions between the amine groups of PEI and amide or carboxylate groups of partially hydrolysed polyacrylamide (PHPA). Among the many possibilities, we showed that the interaction occurring during thermogelation is mainly due to covalent bonding. The latter results from a transamidification reaction between the polymer amide groups and the primary amines of the crosslinker. The reaction, at high temperatures, was accompanied by some hydrolysis of the polymer amide groups. Consequently, the kinetics of the reaction and hydrolysis were evaluated and fitted using pseudo first-order equations where the hydrolysis kinetics was found to be three times lower than that of the reaction.
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Affiliation(s)
- Mohammed Abdelfetah Ghriga
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, (Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux), 2 Avenue P. Angot, Technopole Hélioparc, 64000 Pau, France.
| | - Abdelouahed Khoukh
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, (Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux), 2 Avenue P. Angot, Technopole Hélioparc, 64000 Pau, France.
| | - Seif El Islam Lebouachera
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, Total Energies, LFCR, Parc Montaury, Anglet, France
| | - Bruno Grassl
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, (Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux), 2 Avenue P. Angot, Technopole Hélioparc, 64000 Pau, France.
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Kircher R, Mross S, Hasse H, Münnemann K. Functionalized Controlled Porous Glasses for Producing Radical-Free Hyperpolarized Liquids by Overhauser DNP. Molecules 2022; 27:molecules27196402. [PMID: 36234939 PMCID: PMC9572983 DOI: 10.3390/molecules27196402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/13/2022] [Accepted: 09/25/2022] [Indexed: 11/26/2022] Open
Abstract
Overhauser dynamic nuclear polarization (ODNP) can be used as a tool for NMR signal enhancement and happens on very short time scales. Therefore, ODNP is well suited for the measurement of fast-flowing samples, even in compact magnets, which is beneficial for the real-time monitoring of chemical reactions or processes. ODNP requires the presence of unpaired electrons in the sample, which is usually accomplished by the addition of stable radicals. However, radicals affect the nuclear relaxation times and can hamper the NMR detection. This is circumvented by immobilizing radicals in a packed bed allowing for the measurement of radical-free samples when using ex situ DNP techniques (DNP build-up and NMR detection happen at different places) and flow-induced separation of the hyperpolarized liquid from the radicals. Therefore, the synthesis of robust and chemically inert immobilized radical matrices is mandatory. In the present work, this is accomplished by immobilizing the radical glycidyloxy-tetramethylpiperidinyloxyl with a polyethyleneimine (PEI) linker on the surface of controlled porous glasses (CPG). Both the porosity of the CPGs and also the size of the PEI-linker were varied, resulting in a set of distinct radical matrices for continuous-flow ODNP. The study shows that CPGs with PEI-linkers provide robust, inert and efficient ODNP matrices.
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14
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State-of-the-art review on recent advances in polymer engineering: modeling and optimization through response surface methodology approach. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04398-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Al Brahim A, Bai B, Schuman T. Comprehensive Review of Polymer and Polymer Gel Treatments for Natural Gas-Related Conformance Control. Gels 2022; 8:gels8060353. [PMID: 35735697 PMCID: PMC9222239 DOI: 10.3390/gels8060353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 01/27/2023] Open
Abstract
Conformance problems often exist in natural gas-related activities, resulting in excessive water production from natural gas production wells and/or excessive natural gas production from oil production wells. Several mechanical and chemical solutions were reported in the literature to mitigate the conformance problems. Among the chemical solutions, two classes of materials, namely polymer gels and water-soluble polymers, have been mostly reported. These systems have been mainly reviewed in several studies for their applications as water shutoff treatments for oil production wells. Natural gas production wells exhibit different characteristics and have different properties which could impact the performance of the chemical solutions. However, there has not been any work done on reviewing the applications of these systems for the challenging natural gas-related shutoff treatments. This study provides a comprehensive review of the laboratory evaluation and field applications of these systems used for water control in natural gas production wells and gas shutoff in oil production wells, respectively. The first part of the paper reviews the in-situ polymer gel systems, where both organically and inorganically crosslinked systems are discussed. The second part presents the water-soluble polymers with a focus on their disproportionate permeability reduction feature for controlling water in gas production wells. The review paper provides insights into the reservoir conditions, treatment design and intervention, and the success rate of the systems applied. Furthermore, the outcomes of the paper will provide knowledge regarding the limitations of the existing technologies, current challenges, and potential paths forwards.
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Affiliation(s)
- Ali Al Brahim
- Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, 1400 N. Bishop, Rolla, MO 65409, USA; (A.A.B.); (B.B.)
| | - Baojun Bai
- Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, 1400 N. Bishop, Rolla, MO 65409, USA; (A.A.B.); (B.B.)
| | - Thomas Schuman
- Department of Chemistry, Missouri University of Science and Technology, 400 W. 11th St., Rolla, MO 65409, USA
- Correspondence:
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16
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Guzmán-Lucero D, Martínez-Palou R, Palomeque-Santiago JF, Vega-Paz A, Guzmán-Pantoja J, López-Falcón DA, Guevara-Rodríguez FDJ, García-Muñoz NA, Castillo-Acosta S, Likhanova NV. Water Control with Gels Based on Synthetic Polymers under Extreme Conditions in Oil Wells. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Diego Guzmán-Lucero
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | - Rafael Martínez-Palou
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | | | - Araceli Vega-Paz
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | - Javier Guzmán-Pantoja
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | - Dennys Armando López-Falcón
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | | | - Norma Araceli García-Muñoz
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | - Silvia Castillo-Acosta
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
| | - Natalya Victorovna Likhanova
- Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan 07730 México City México
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17
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Liu W, Pei W, Moradi M, Zhao D, Li Z, Zhang M, Xu D, Wang F. Polyethyleneimine Functionalized Mesoporous Magnetic Nanoparticles with Enhanced Antibacterial and Antibiofilm Activity in an Alternating Magnetic Field. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18794-18805. [PMID: 35420412 DOI: 10.1021/acsami.1c24148] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite a lot of research on the antibacterial effect of Fe3O4 nanoparticles, their interactions with biofilm matrix have not been well understood. The surface charge of nanoparticles mainly determines their ability to adhere on the biofilm. In this work, negatively charged Fe3O4 nanoparticles were synthesized via a trisodium citrate-assisted solvothermal method and then the surfaces were functionalized using polyethyleneimine (PEI) to obtain positively charged Fe3O4 nanoparticles. The antibacterial and antibiofilm activities of both negatively and positively charged Fe3O4 nanoparticles in an alternating magnetic field were then systematically investigated. The positively charged Fe3O4 nanoparticles showed a strong self-adsorbed attachment ability to the planktonic and sessile cells, resulting in a better antibacterial activity and enhanced biofilm eradication performance compared to the conventional Fe3O4 nanoparticles with negative charges. Fe3O4@PEI nanoparticles produced physical stress and thermal damage in response to an alternating magnetic field, inducing the accumulation of intracellular reactive oxygen species into live bacterial cells, bacterial membrane damage, and biofilm dispersion. Utilizing an alternating magnetic field along with positively charged nanoparticles leads to a synergistic antibacterial approach to improve the antibiofilm performance of magnetic nanoparticles.
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Affiliation(s)
- Wenhui Liu
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Wenli Pei
- Key Laboratory of Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Masoumeh Moradi
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Dong Zhao
- Key Laboratory of Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Zhong Li
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Mingxing Zhang
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Dake Xu
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
| | - Fuhui Wang
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China
- Electrobiomaterials Institute, Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
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18
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Jia H, Kang Z, Li Z. Using 1,2 dimethylimidazole to improve gel thermalstability for wellbore plugging in ultra-high temperature fractured reservoirs. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1974878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hu Jia
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
| | - Zheng Kang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
| | - Zhijie Li
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China
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19
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Ghriga MA, Lebouachera SEI, Drouiche N, Grassl B. Investigating the viscoelastic behavior of partially hydrolyzed polyacrylamide/polyethylenimine mixtures. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02636-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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20
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Li Q, Li Y, Li Y, Chen Y, Wu Q, Wang S. Efficient removal of methyl orange by nanocomposite aerogel of polyethyleneimine and
β
‐cyclodextrin
grafted cellulose nanocrystals. J Appl Polym Sci 2021. [DOI: 10.1002/app.51481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qian Li
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology Zhejiang Sci‐Tech University Hangzhou China
- College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou China
| | - Yujie Li
- College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou China
| | - Yuehu Li
- College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou China
- State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou China
| | - Yifan Chen
- College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou China
| | - Qiang Wu
- College of Chemistry and Materials Engineering Zhejiang A&F University Hangzhou China
| | - Siqun Wang
- Center for Renewable Carbon University of Tennessee Knoxville Tennessee USA
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21
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Nunes YL, de Menezes FL, de Sousa IG, Cavalcante ALG, Cavalcante FTT, da Silva Moreira K, de Oliveira ALB, Mota GF, da Silva Souza JE, de Aguiar Falcão IR, Rocha TG, Valério RBR, Fechine PBA, de Souza MCM, Dos Santos JCS. Chemical and physical Chitosan modification for designing enzymatic industrial biocatalysts: How to choose the best strategy? Int J Biol Macromol 2021; 181:1124-1170. [PMID: 33864867 DOI: 10.1016/j.ijbiomac.2021.04.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 12/16/2022]
Abstract
Chitosan is one of the most abundant natural polymer worldwide, and due to its inherent characteristics, its use in industrial processes has been extensively explored. Because it is biodegradable, biocompatible, non-toxic, hydrophilic, cheap, and has good physical-chemical stability, it is seen as an excellent alternative for the replacement of synthetic materials in the search for more sustainable production methodologies. Thus being, a possible biotechnological application of Chitosan is as a direct support for enzyme immobilization. However, its applicability is quite specific, and to overcome this issue, alternative pretreatments are required, such as chemical and physical modifications to its structure, enabling its use in a wider array of applications. This review aims to present the topic in detail, by exploring and discussing methods of employment of Chitosan in enzymatic immobilization processes with various enzymes, presenting its advantages and disadvantages, as well as listing possible chemical modifications and combinations with other compounds for formulating an ideal support for this purpose. First, we will present Chitosan emphasizing its characteristics that allow its use as enzyme support. Furthermore, we will discuss possible physicochemical modifications that can be made to Chitosan, mentioning the improvements obtained in each process. These discussions will enable a comprehensive comparison between, and an informed choice of, the best technologies concerning enzyme immobilization and the application conditions of the biocatalyst.
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Affiliation(s)
- Yale Luck Nunes
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Fernando Lima de Menezes
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Isamayra Germano de Sousa
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Antônio Luthierre Gama Cavalcante
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | | | - Katerine da Silva Moreira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil
| | - André Luiz Barros de Oliveira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil
| | - Gabrielly Ferreira Mota
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - José Erick da Silva Souza
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Italo Rafael de Aguiar Falcão
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Thales Guimaraes Rocha
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - Roberta Bussons Rodrigues Valério
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Pierre Basílio Almeida Fechine
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, CEP 60455760 Fortaleza, CE, Brazil
| | - Maria Cristiane Martins de Souza
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil
| | - José C S Dos Santos
- Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção CEP 62790970, CE, Brazil; Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza CEP 60455760, CE, Brazil.
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22
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Zhou B, Kang W, Yang H, Li Z, Zhang H, Zhang M, Xie A, Sun Z, Sarsenbekuly B. The shear stability mechanism of cyclodextrin polymer and amphiphilic polymer inclusion gels. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115399] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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23
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Optimization of zero-shear viscosity for HPAM-Polystyrene microspheres formulations through experimental design approach. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02473-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Magzoub MI, Salehi S, Hussein IA, Nasser MS. Investigation of Filter Cake Evolution in Carbonate Formation Using Polymer-Based Drilling Fluid. ACS OMEGA 2021; 6:6231-6239. [PMID: 33718713 PMCID: PMC7948223 DOI: 10.1021/acsomega.0c05802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 01/20/2021] [Indexed: 05/10/2023]
Abstract
Drilling fluid and filtrates invasion often alter the near-wellbore flow properties during overbalanced drilling. The utilization of polymeric gels to prevent drilling fluid loss reduces the risk of formation damage caused by this alteration. In this study, the internal and external filter cake evolution by polyacrylamide (PAM) cross-linked with polyethylenimine (PEI) was investigated. The analysis conducted in this study showed that the cross-linked polymer activates and forms a mature gel inside the formation's pores. Gel also formed a dense uniform structure on the rock's surface, preventing further fluid loss. A high sealing pressure of up to 1000 psi was achieved, allowing drilling to continue without the need for additional casing string to prevent lost circulation. Moreover, the PAM/PEI formula showed less invasion of filtrate and evolution of a thin shallow internal filter cake that penetrated less than half of the filter disk thickness. In comparison to the full invasion and particle depositions that occurred with the water-based mud (WBM), the PAM/PEI formula is expected to reduce the impact of lost circulation materials (LCMs) on formation damage.
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Affiliation(s)
- Musaab I. Magzoub
- Mewbourne
School of Petroleum and Geological Engineering, The University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Saeed Salehi
- Mewbourne
School of Petroleum and Geological Engineering, The University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Ibnelwaleed A. Hussein
- Gas
Processing Center, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mustafa S. Nasser
- Gas
Processing Center, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
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25
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Qin Y, Liao R, Luo S, Li J. The Thermal Gelation Behavior and Performance Evaluation of High Molecular Weight Nonionic Polyacrylamide and Polyethyleneimine Mixtures for In-Depth Water Control in Mature Oilfields. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4142. [PMID: 32957681 PMCID: PMC7560312 DOI: 10.3390/ma13184142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 11/16/2022]
Abstract
A delayed crosslinked polymer gel was developed for in-depth water control in mature oilfields. The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI was investigated, and sodium citrate (NaCit) was selected as a new retarder to prolong the gelation time. The gelation performance of NPAM/PEI gel system can be adjusted by varying NPAM or PEI concentration, and a quadratic model is developed by statistical analysis, which predicts the gelation time of NPAM/PEI gel system. The obtained model shows high significance and good reliability, as suggested by the F-ratio of 175.16 and high adjusted R-square value (0.9732). The addition of NaCit exhibits a good delayed gelation effect on the NPAM/PEI gel system, better than that of NaCl. The decrease of the initial pH value of the gelling solution leads to the weaker gel viscosity and longer gelation time due to the protonation of amine groups on the PEI chains. Increasing temperature results in higher gel viscosity but shorter gelation time. The gel system in the presence of NaCit exhibits good compatibility with injection and formation water. A dense three-dimensional structure was observed in matured NPAM/PEI/NaCit gel, and it could keep stable below 160 °C. The gel system could effectively reduce the permeability (>95%) and restricted the flow of water after matured in natural cores.
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Affiliation(s)
- Yi Qin
- Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, China;
| | - Ruiquan Liao
- College of Petroleum Engineering, Yangtze University, Wuhan 430100, China; (R.L.); (J.L.)
| | - Shunshe Luo
- Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, China;
| | - Junliang Li
- College of Petroleum Engineering, Yangtze University, Wuhan 430100, China; (R.L.); (J.L.)
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26
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Zhang H, Yang H, Sarsenbekuly B, Zhang M, Jiang H, Kang W, Aidarova S. The advances of organic chromium based polymer gels and their application in improved oil recovery. Adv Colloid Interface Sci 2020; 282:102214. [PMID: 32721622 DOI: 10.1016/j.cis.2020.102214] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/23/2022]
Abstract
In recent years, with the further development of old oilfields, in order to further improve the oil recovery, they must be conformance controlled. Among various types of conformance control methods, polymer gels composed of polymers and crosslinkers have attracted widespread attention because of their efficiency and low costs. Among them, organic chromium gels with their good formation adaptability and high stability have been fully developed in recent decades. This review introduces the different types of polymers and crosslinkers used in the preparation of organic chromium gels, and the mechanisms of affecting their performance are analyzed. On this basis, the organic chromium gels for different formation conditions are introduced, including nanoparticle-reinforced and compound organic chromium gels. At the same time, evaluation methods of organic chromium gels are introduced, while the focus is on the in-situ measurement method (mirco-rheology) of gel formation time developed in recent decades. Based on the currently developed organic chromium gel and the analysis of the development status in oilfields, future directions like the use of supramolecular organic chromium gel and shear organic chromium gel are suggested.
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27
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Structure–property relationships of the thermal gelation of partially hydrolyzed polyacrylamide/polyethylenimine mixtures in a semidilute regime. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-019-02817-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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