• viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    2013-02-12· Polymer flooding is the most successful chemical method to enhance oil recovery. This technique has achieved large-scale field application in China. Polymer flooding is also being tested in several heavy oil fields. For oil field applications, partially hydrolyzed polyacrylamide (HPAM) is the most widely used polymer. HPAM must maintain high viscosity to achieve good oil recovery. In reality

  • polymers for conformance improvement petrowiki

    Polymers for conformance improvement PetroWiki

    Basic Oilfield Polymer TypesViscosity Enhancement and Permeability ReductionChemistry of Polymers Used in Conformance ImprovementBiopolymersSynthetic PolymersThere are two fundamentally different types of water-soluble and viscosity-enhancing polymer chemistries that have been used during polymer waterflooding and conformance improvement treatments. The first type is biopolymers, such as Xanthan gum polymer. The second type is man-made synthetic polymers, such as acrylamide-based polymers.Biopolymers of the type used in conformance improvement are polysaccharides (poly sugars) in which the monomer chemical linkages of the polymer backbone are gl

    Influences of partially hydrolyzed polyacrylamide (HPAM

    2008-08-01· 1. Introduction. Polymer flooding is an enhanced oil recovery (EOR) process. Water-soluble polymer, for example partially hydrolyzed polyacrylamide (HPAM), is added to the flooding water to improve the mobility ratio in the flooding process .Polymer flooding technology has been used in the later period of oil field producing.

  • effect of partially hydrolyzed polyacrylamide

    Effect of partially hydrolyzed polyacrylamide

    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

  • phpa (partially hydrolyzed polyacrylamide) manufacturer

    PHPA (Partially Hydrolyzed Polyacrylamide) Manufacturer

    Partially Hydrolyzed Polyacrylamide (HPAM) in act with water after polymer flooding in oil filed reasons in environmental troubles, such as enhancement in the oil-water detachment trouble, natural degradation to make toxic acrylamide and jeopardize local ecosystem. Bio-degradation of HPAM may be a cost-efficient mode for solving these problems

  • phpa partially hydrolyzed polyacrylamide suppliers

    PHPA Partially Hydrolyzed Polyacrylamide Suppliers

    PHPA (also partially hydrolyzed polyacrylamide or HPAM) is designed for easy mixing in drilling mud systems and to improve its dispersion to eliminate “fish eyes”, This occurs in field work when mixing either large quantities rapidly or mixing high polymer concentrations without good mixing equipment.In drilling fluids, PHPA is an anionic polyacrylamide and it can act as a viscosifier

  • polyacrylamide

    Polyacrylamide

    OverviewPhysicochemical propertiesUses of polyacrylamideStabilityEnvironmental effectsSee also

    Polyacrylamide (IUPAC poly(2-propenamide) or poly(1-carbamoylethylene), abbreviated as PAM) is a polymer (-CH2CHCONH2-) formed from acrylamide subunits. It can be synthesized as a simple linear-chain structure or cross-linked, typically using N,N'-methylenebisacrylamide. In the cross-linked form, the possibility of the monomer being present is reduced even further. It is highly water-absorbent, forming a soft gel when hydrated, used in such applications as polyacrylamide gel electrophoresis, and can also b

  • biodegradation of partially hydrolyzed polyacrylamide

    Biodegradation of partially hydrolyzed polyacrylamide

    However, partially hydrolyzed polyacrylamide (HPAM) present in production water causes some problems. For example, after polymer flooding, HPAM will remain in the produced water generated by oilfields, increasing the difficulty in oil–water separation. Consequently, the oil content in sewage is greatly increased, and there is a high

  • rheology and polymer flooding characteristics of partially

    Rheology and polymer flooding characteristics of partially

    2012-06-11· Polymer flooding characteristics of partially hydrolyzed polyacrylamide (HPAM) solution with the addition of NaOH were examined in homogeneous glass‐bead packs. The heavy oil recovery in unconsolidated sandstone formations by applying the alkali‐polymer flooding was observed. Experimental results showed that HPAM solution was sensitive to

  • dynamics, aggregation, and interfacial properties of the

    Dynamics, Aggregation, and Interfacial Properties of the

    We hereby employ molecular dynamics (MD) simulations (∼6 μs in total) to investigate the chain dynamics, aggregation, and interfacial properties of the partially hydrolyzed polyacrylamide (HPAM) polymer. HPAM is widely used in chemical enhanced oil recovery (cEOR) applications. The conformational changes and aggregation properties are examined in different conditions simulating

  • rheology and polymer flooding characteristics of partially

    Rheology and polymer flooding characteristics of partially

    Polymer flooding characteristics of partially hydrolyzed polyacrylamide (HPAM) solution with the addition of NaOH were examined in homogeneous glass‐bead packs.

  • partially hydrolyzed polyacrylamide, partially

    partially hydrolyzed polyacrylamide, partially

    A wide variety of partially hydrolyzed polyacrylamide options are available to you, There are 827 suppliers who sells partially hydrolyzed polyacrylamide on Alibaba, mainly located in Asia. The top countries of suppliers are India, China, and India, from which the percentage of partially hydrolyzed polyacrylamide supply is 1%, 99%, and 1%

  • influence of molar mass of partially hydrolyzed

    Influence of molar mass of partially hydrolyzed

    2020-01-02· For that, partially hydrolyzed polyacrylamide (HPAM) with different molar masses were used as the EOR polymer, while the flocculant used was a Polyethylenimine (PEI), an underexplored flocculant in oil industry. HPAM was evaluated in two concentrations (100 and 1000 ppm), under two different conditions: sheared and non-sheared. Flocculation

  • drag reduction behavior of hydrolyzed polyacrylamide

    Drag reduction behavior of hydrolyzed polyacrylamide

    2017-03-28· 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. Drag reduction (DR)

  • rheology and polymer flooding characteristics of partially

    Rheology and polymer flooding characteristics of partially

    2012-06-11· Polymer flooding characteristics of partially hydrolyzed polyacrylamide (HPAM) solution with the addition of NaOH were examined in homogeneous glass‐bead packs. The heavy oil recovery in unconsolidated sandstone formations by applying the alkali‐polymer flooding was observed. Experimental results showed that HPAM solution was sensitive to

  • rheological properties of partially hydrolyzed

    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. The results show that the inclusion

  • biodegradation of partially hydrolyzed polyacrylamide

    Biodegradation of Partially Hydrolyzed Polyacrylamide

    Abstract In present study the biodegradation of partially hydrolyzed polyacrylamide (HPAM) by bacterial strains isolated from Omani oil fields was analyzed. HPAMs are extensively used in oil fields for enhanced oil recovery operations. The produced

  • comparative study on enhancing oil recovery under high

    Comparative Study on Enhancing Oil Recovery under High

    2019-06-30· The synthetic water-soluble polymer, partially hydrolyzed polyacrylamide (HPAM), has been most widely used for enhanced oil recovery (EOR); however, its poor thermal stability and weak salt tolerance impede further application in high-temperature and high-salinity oil reservoirs.

  • dynamics, aggregation, and interfacial properties of the

    Dynamics, Aggregation, and Interfacial Properties of the

    We hereby employ molecular dynamics (MD) simulations (∼6 μs in total) to investigate the chain dynamics, aggregation, and interfacial properties of the partially hydrolyzed polyacrylamide (HPAM) polymer. HPAM is widely used in chemical enhanced oil recovery (cEOR) applications. The conformational changes and aggregation properties are examined in different conditions simulating

  • hpam polymer, hpam polymer suppliers

    hpam polymer, hpam polymer Suppliers

    A wide variety of hpam polymer options are available to you, There are 82 suppliers who sells hpam polymer on Alibaba, mainly located in Asia. The top countries of suppliers are China, Hong Kong S.A.R., from which the percentage of hpam polymer supply is 98%, 1% respectively.

  • comparative study on enhancing oil recovery under high

    Comparative Study on Enhancing Oil Recovery under High

    2019-06-30· The synthetic water-soluble polymer, partially hydrolyzed polyacrylamide (HPAM), has been most widely used for enhanced oil recovery (EOR); however, its poor thermal stability and weak salt tolerance impede further application in high-temperature and high-salinity oil reservoirs.

  • synthesis of hydrogel nanocomposites based on partially

    Synthesis of Hydrogel Nanocomposites Based on Partially

    partially hydrolyzed polyacrylamide (HPAM) composite hydrogels impreg-nated with bentonite clay (Bent) and bentonite clay modified (Orgbentent) with the surfactant hexadecyltrimethylammonium bromide were synthesized and characterized as a sealing agent in high water producing permeable zones in the petroleum industry. The concept of utilizing

  • china partially hydrolyzed polyacrylamide suppliers

    China Partially Hydrolyzed Polyacrylamide Suppliers

    Welcome to consult partially hydrolyzed polyacrylamide price with Shandong Tongli Chemical Co.,Ltd, which is one of the leading partially hydrolyzed polyacrylamide suppliers in China and also a productive hPAM, PHPA factory.

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide under shearing and heat Changhong Gao Received: 26 November 2012/Accepted: 28 January 2013/Published online: 12 February 2013 The Author(s) 2013. This article is published with open access at Springerlink Abstract Polymer flooding is the most successful chemical method to enhance oil recovery. This technique has

  • field performance of polymer waterflooding petrowiki

    Field performance of polymer waterflooding PetroWiki

    In ten of the floods, partially hydrolyzed polyacrylamide was used as the polymer, and, in two of the floods, xanthan was used as the polymer. The international polymer floods recovered between 6 and 52% of the OOIP, compared with the medium recovery of 4.9% OOIP for 128 US polymer floods.

  • rheology of diluted and semi-diluted partially hydrolyzed

    Rheology of Diluted and Semi-diluted Partially Hydrolyzed

    2016-08-01· To demonstrate this, the rheological properties of the polymer melt hydrolyzed polyacrylamide HPAM have been modeled using a two element Maxwell model. The model has successfully reproduce

  • hydrolysis and thermal stability of partially hydrolyzed

    Hydrolysis and thermal stability of partially hydrolyzed

    Partially hydrolyzed polyacrylamide (HPAM) is the water‐soluble polymer most often used in flooding applications in the petroleum industry. However, in aqueous solutions at high temperatures, HPAM undergoes hydrolysis of the lateral amide groups, and the presence of salts in the solution can lead to precipitation of this polymer.

  • the behavior of partially hydrolyzed polyacrylamide

    The Behavior of Partially Hydrolyzed Polyacrylamide

    However, there is still a lack of information defining all the physical variables that control polymer solution behavior. This paper concerns one class of polymers that apparently is being tested widely as an additive for injection water; it is partially hydrolyzed polyacrylamide. The present investigation surveys some ways in which polymer

  • empirical correlations for viscosity of partially

    Empirical correlations for viscosity of partially

    During water flooding operations, polymer can be added to injected water to improve sweep efficiency and retard viscous fingering. This technique, namely polymer flooding has achieved successful large-scale field applications in China. Polymer flooding is also being tested in several heavy oil fields. For oil field applications, partially hydrolyzed polyacrylamide (HPAM) is the most widely

  • comparative studies of rheological properties

    Comparative studies of rheological properties

    The present work is concerned with experimental results of rheological characteristics of polyacrylamide (PAM) and of partially hydrolyzed polyacrylamide (HPAM) (degree of hydrolysis up to 80%) in aqueous and aqueous/sodium chloride solutions with changing experimental conditions such as polymer concentration, temperature, solvent quality, and shear rate applied.

  • comparative studies of rheological properties

    Comparative studies of rheological properties

    The present work is concerned with experimental results of rheological characteristics of polyacrylamide (PAM) and of partially hydrolyzed polyacrylamide (HPAM) (degree of hydrolysis up to 80%) in aqueous and aqueous/sodium chloride solutions with changing experimental conditions such as polymer concentration, temperature, solvent quality, and shear rate applied.

  • biodegradation of partially hydrolyzed polyacrylamide

    Biodegradation of partially hydrolyzed polyacrylamide

    / 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. Vol. 2018-March Society of Petroleum Engineers, 2018.

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    For oil field applications, partially hydrolyzed polyacrylamide (HPAM) is the most widely used polymer. HPAM must maintain high viscosity to achieve good oil recovery. In reality, however

  • slow gelation of titanium(iv) with partially hydrolyzed

    Slow Gelation of Titanium(IV) with Partially Hydrolyzed

    The gelation of metallic crosslinking agent titanium(IV) (Ti(IV)) with partially hydrolyzed polyacrylamide (HPAM) is studied. Factors effecting the crosslinking reaction are discussed and the

  • (pdf) rheological properties of partially hydrolyzed

    (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

    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. The results show that the inclusion

  • rheological properties of partially hydrolyzed

    Rheological Properties of Partially Hydrolyzed

    This work aims to improve the rheological properties of partially hydrolysed polyacrylamide (HPAM) for enhanced oil recovery by using SiO 2 nanoparticles (NPs).Novel aqueous HAPM based SiO 2 nanocomposites were formulated and their rheological properties were

  • effect of charge distribution on the viscosity

    Effect of Charge Distribution on the Viscosity

    The majority of the polymers used in enhanced oil recovery (EOR) processes are water-soluble, acrylamide-based polymers, typically partially hydrolyzed polyacrylamide (HPAM). Industrial-scale production of HPAM polymers for EOR involves either posthydrolysis of polyacrylamide or copolymerization of acrylamide and sodium acrylate. Although products with the same molecular

  • publications university of calgary

    Publications University of Calgary

    Polymer flooding is one of the most effective enhanced oil recovery (EOR) methods. High temperature and a high salt content in oil reservoirs significantly decrease the performance of polymer flooding. In this work, the viscoelastic properties of a partially hydrolyzed polyacrylamide (HPAM) solution with and without salt (NaCl) and at two different temperatures (35 °C and 70 °C) were

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    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

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