hydrolyzed polyacrylamide hpam topics

Incorporation of Partially Hydrolyzed Polyacrylamide With …

Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their applications.,Biodegradation of partially hydrolyzed polyacrylamide by … ,Partially hydrolyzed polyacrylamide (HPAM) in production water after polymer flooding in oil filed causes environmental problems, such as increases the difficulty in oil-water separation, degrades naturally to produce toxic acrylamide and endanger local ecosystem. Biodegradation of HPAM may be an ef …,Polyacrylamide Polymer – an overview | ScienceDirect Topics ,In the early stage of organic chromium gel research, the polymers used were mainly partially hydrolyzed polyacrylamide polymers (HPAM – its structural formula is shown in Fig. 5 (a)) [ 27 ].

Biodegradation of partially hydrolyzed polyacrylamide hpam …

/ Biodegradation of partially hydrolyzed polyacrylamide hpam using bacteria isolated from omani oil fields. Society of Petroleum Engineers – SPE EOR Conference at Oil and Gas West Asia 2018.,Energies | Free Full-Text | Pore-Scale Flow Fields of the … ,The rheology of a partially hydrolyzed polyacrylamide (HPAM) solution plays an important role in its oil recovery during polymer flooding. However, multiple factors in brine, such as sulfide ions, cause a dramatic loss in the viscosity and oil recovery.,HYDROLYZED POLYACRYLAMIDE- POLYETHYLENIMINE- DEXTRAN … ,Hydrolyzed Polyacrylamide- Polyethylenimine polymer gel system. A 40000ppm concentration of HPAM, 8000ppm of PEI and 2667 ppm of Dextran Sulfate at 100°C.

Biodegradation of hydrolyzed polyacrylamide by the …

Hydrolyzed polyacrylamide (HPAM) is widely used to EOR in many oilfields, and it is generally accepted as a nontoxic polymer. However, under certain physical or chemical conditions, it may degrade and produce acrylamide (AM), which exhibits toxicity to nervous system and damages human health seriously (Rayburn and Friedman, 2010).,Experimental and theoretical study of dilute polyacrylamide … ,The structure and intrinsic viscosity of the partially hydrolyzed polyacrylamide (HAPM) and polyacrylamide (PAM) in aqueous solution were investigated by comparative studies of molecular dynamics simulation over a wide range of the NaCl …,部分水鲜聚丙烯酰胺,partially hydrolyzed polyacrylamide … ,Partially hydrolyzed polyacrylamide部分水解聚丙烯酰胺 1.Structural images of partially hydrolyzed polyacrylamide;部分水解聚丙烯酰胺的结构形貌研究 2.Rheological properties of linked polymer solution made of low-concentration partially hydrolyzed polyacrylamide and aluminum citrate;低浓度部分水解聚丙烯酰胺与柠檬酸铝交联体系流变性研究

Study on the Adsorption of Hydrolyzed Polyacrylamide by …

The hydrolyzed polyacrylamide (HPAM) adsorption on ZIF-8 may be caused by three interactions: the coordination interaction between Zn (from ZIF-8) and COO − (from HPAM), the electrostatic attraction between NH + (from ZIF-8) and COO − (from HPAM), the hydrogen bonding between N (from ZIF-8) and CONH 2 (from HPAM).,Hydrolyzed polyacrylamide biotransformation in an up-flow … ,This work lays a basis for HPAM-containing wastewater treatment and offers a support for water saving and emission reduction, and is of great significance to the sustainable development of oilfield. Hydrolyzed polyacrylamide (HPAM) biotransformation in an up-flow anaerobic sludge blanket reactor including biodegradation performances, biodegradation mechanisms, key enzymes, and functional …,Energies | Free Full-Text | Pore-Scale Flow Fields of the … ,The rheology of a partially hydrolyzed polyacrylamide (HPAM) solution plays an important role in its oil recovery during polymer flooding. However, multiple factors in brine, such as sulfide ions, cause a dramatic loss in the viscosity and oil recovery.

Electrochemical degradation of hydrolyzed polyacrylamide …

The anode materials play a key role in the electrochemical oxidation process. In this work, a new type of Ti/Sn-SbO x /α-PbO 2 /La-In-β-PbO 2 electrode has been prepared through electrodeposition and applied to the degradation of high concentration aqueous solution of hydrolyzed polyacrylamide (HPAM).,Polyacrylamide degradation and its implications in … ,The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1,9,12,21 …,(PDF) Drag reduction behavior of hydrolyzed polyacrylamide … ,Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates.

Nanofluids based on hydrolyzed polyacrylamide and …

Partially hydrolyzed polyacrylamide (HPAM) aqueous fluids in reservoirs produces a significant increase in the produced oil volume. However, the viscosity of these fluids is highly influenced by the temperature and salinity of the medium which is crucial …,Rheological Properties of Partially Hydrolyzed … ,This work aims to improve the rheological properties of partially hydrolyzed polyacrylamide (HPAM) for enhanced oil recovery by using silica (or silicon dioxide, SiO2) nanoparticles (NPs). Novel aqueous HPAM-based SiO2 nanocomposites were formulated, and their rheological properties were investigated under different salinities, temperatures, and aging times.,Experimental and theoretical study of dilute polyacrylamide … ,The structure and intrinsic viscosity of the partially hydrolyzed polyacrylamide (HAPM) and polyacrylamide (PAM) in aqueous solution were investigated by comparative studies of molecular dynamics simulation over a wide range of the NaCl …

Hydrolyzed polyacrylamide grafted maize starch based …

The present study details the synthesis, characterization and pharmaceutical application of hydrolysed polyacrylamide grafted maize starch (HPam-g-MS) as promising polymeric material for the development of pH responsive microbeads. Different grades of graft copolymer were synthesized by changing the …,Study on the Adsorption of Hydrolyzed Polyacrylamide by … ,Influences of the ZIF-8 type, hydrolyzed polyacrylamide (HPAM) property, and salinity of the solution on their adsorption performance were discussed. The results indicated that ZIF-8(NH 3 ⋅ H 2 O) showed larger adsorption capacity compared to other counterparts.,Energies | Free Full-Text | Pore-Scale Flow Fields of the … ,The rheology of a partially hydrolyzed polyacrylamide (HPAM) solution plays an important role in its oil recovery during polymer flooding. However, multiple factors in brine, such as sulfide ions, cause a dramatic loss in the viscosity and oil recovery.

(2020) – Electrochem. Sci

Hydrolyzed polyacrylamide (HPAM) has been widely used in oil production processes, as it can reduce water mobility, neutralize charges, and agglomerate particles, thereby effectively increasing the . Int.,Incorporation of Partially Hydrolyzed Polyacrylamide With … ,Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their applications. Herein, copolymers including HPAM …,Experimental and theoretical study of dilute polyacrylamide … ,The structure and intrinsic viscosity of the partially hydrolyzed polyacrylamide (HAPM) and polyacrylamide (PAM) in aqueous solution were investigated by comparative studies of molecular dynamics simulation over a wide range of the NaCl …

油田化学驱用部分水解聚丙烯酰胺环境基准值研究

石油学报(石油加工) ›› 2022, Vol. 38 ›› Issue (2): 425-435.,(PDF) Rheological Properties of Partially Hydrolyzed … ,Partially hydrolyzed polyacrylamide (HPAM) was purchased from Shandong Tongli Chemical Co. Ltd., China and had a molecular weight of 5 − 22 million g/mol and a relative density,Rheological Properties of Partially Hydrolyzed … ,1 Rheological properties of partiallyhydrolysed polyacrylamide seeded by nanoparticles Zhongliang Hu1, Maje Haruna1, Hui Gao1, Ehsan Nourafkan1, Dongsheng Wen1,2* 1School of Chemical and Process Engineering, University of Leeds, Leeds, U.K. 2School of Aeronautic Science and Engineering, Beihang University, Beijing, 100191 Email: [email protected]

Incorporation of Partially Hydrolyzed Polyacrylamide With …

Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their applications. Herein, copolymers including HPAM, zwitterion-modified HPAM (z-HPAM), PEG-modified HPAM (p-HPAM), and zwitterion/PEG-modified HPAM (zp-HPAM) were prepared by free radical …,Biodegradation of partially hydrolyzed polyacrylamide by … ,Partially hydrolyzed polyacrylamide (HPAM) in production water after polymer flooding in oil filed causes environmental problems, such as increases the difficulty in oil-water separation, degrades naturally to produce toxic acrylamide and endanger local ecosystem. Biodegradation of HPAM may be an ef …,Influence of Hydrolyzed Polyacrylamide (HPAM) Molecular … ,The influence of the molecular weight (Mw) of hydrolyzed polyacrylamide (HPAM) on the cross-linking reaction of HPAM/Cr3+ and the transportation of HPAM/Cr3+ in microfractures is systematically studied using viscometry, ultraviolet–visible absorption spectrophotometry, and displacement experiment with a visual microfractured model.

Biodegradation of partially hydrolyzed polyacrylamide hpam …

/ Biodegradation of partially hydrolyzed polyacrylamide hpam using bacteria isolated from omani oil fields. Society of Petroleum Engineers – SPE EOR Conference at Oil and Gas West Asia 2018.,HYDROLYZED POLYACRYLAMIDE- POLYETHYLENIMINE- DEXTRAN … ,Hydrolyzed Polyacrylamide- Polyethylenimine polymer gel system. A 40000ppm concentration of HPAM, 8000ppm of PEI and 2667 ppm of Dextran Sulfate at 100°C.,Drag reduction behavior of hydrolyzed polyacrylamide … ,Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates. Five different concentrations of HPAM as well as mixtures of polyacrylamide/xanthan gum were prepared to investigate the possibility of improving shear stability of HPAM.

Effect of partially hydrolyzed polyacrylamide on …

In this work, the effect of partially hydrolyzed polyacrylamide (HPAM) on the oil–water interfacial properties of produced water from polymer flooding (PWPF) was investigated. In addition, this study investigated the effects of three fiocculants (polyaluminium chloride PAC, cationic polymer FO4800SH, and nonionic polymer 402) on the stability …,Electrochemical degradation of hydrolyzed polyacrylamide … ,The anode materials play a key role in the electrochemical oxidation process. In this work, a new type of Ti/Sn-SbO x /α-PbO 2 /La-In-β-PbO 2 electrode has been prepared through electrodeposition and applied to the degradation of high concentration aqueous solution of hydrolyzed polyacrylamide (HPAM).,Biodegradation of hydrolyzed polyacrylamide by the … ,Hydrolyzed polyacrylamide (HPAM) is widely used to EOR in many oilfields, and it is generally accepted as a nontoxic polymer. However, under certain physical or chemical conditions, it may degrade and produce acrylamide (AM), which exhibits toxicity to nervous system and damages human health seriously (Rayburn and Friedman, 2010).

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