• chemical stability of polyacrylamide under simulated field

    Chemical Stability of Polyacrylamide Under Simulated Field

    Moradi-Araghi and precipitation with divalent ions. Moradi-Araghi and Doe reported the hardness tolerance for polyacrylamide solutions at various elevated temperatures. The approach of this project was to study the chemical stability of polyacrylamide solutions under "simulated" field conditions. The variables of this study, which are often

  • stability of biopolymer and partially hydrolyzed

    Stability of Biopolymer and Partially Hydrolyzed

    However, there is a legitimate concern about the chemical stability of polymers when there is dissolved oxygen in the injection water or injection facility and its high concentrations of H 2 S in the reservoir. Several synthetic polymers and biopolymers were selected for stability testing under a

  • polyacrylamide

    Polyacrylamide

    Polyacrylamide can be supplied in a powder or liquid form, with the liquid form being subcategorized as solution and emulsion polymer. Even though these products are often called 'polyacrylamide', many are actually copolymers of acrylamide and one or more other chemical

  • chemical stability of polyacrylamide polymers onepetro

    Chemical Stability of Polyacrylamide Polymers OnePetro

    Summary A comprehensive study of the chemical stability of polyacrylamide (PAA) polymers was conducted. The primary emphasis of the study was to determine the stability of Dow Pusher TM 500 PAA in Sundance brine a 115 deg. 17 (46 deg. C). Experiment

  • effect of straw and polyacrylamide on the stability

    Effect of straw and polyacrylamide on the stability

    Poor stability of land/water ecotone (L/WE) soil is a serious and increasing problem in the context of ecological restoration. Effective management by adding straw and polyacrylamide (PAM), i.e., SPAM, to soil may increase soil stability, including structure and fertility.

  • theoretical studies of hydrolysis and stability

    Theoretical studies of hydrolysis and stability

    Where X and Y are numbers of amide and carboxylic groups in polymer. Because our studies mainly focus on the hydrolysis reaction of the amide group, we model the PAM with a dangling –CONH 2 group attaching to the middle carbon of the C 5 molecule. Therefore we have neglected the possible neighbor group interactions in this study.

  • polyacrylamide mechanical degradation and stability in the

    Polyacrylamide Mechanical Degradation and Stability in the

    Abstract Polymer flooding enhances oil recovery due to mobility reduction of the injected water, mainly because of the viscosifying capability of the polymer. However, polymer degradation causes viscosity loss. Thus, determining the degradation magn

  • [pdf] effect of dissolved iron and oxygen on stability

    [PDF] Effect of Dissolved Iron and Oxygen on Stability

    This paper describes an experimental study of the stability of a hydrolyzed polyacrylamide (HPAM) polymer and an HPAM-2acrylamido-tertbutylsulfonic acid (ATBS) terpolymer in the presence of varying initial levels of dissolved oxygen (0 to 8,000 ppb), Fe2þ (0 to 220 ppm), and Fe3þ (0 to 172 ppm).

  • effect of polyacrylamide application on runoff, erosion

    Effect of Polyacrylamide Application on Runoff, Erosion

    Soil erosion affects soil productivity and environmental quality. A laboratory research experiment under simulated heavy rainfall with tap water was conducted to investigate the effects of anionic polyacrylamide (PAM) application rates (0, 0.5, 1.0, and 2.0 g m −2) and molecular weights (12 and 18 Mg mol −1) on runoff, soil erosion, and soil nutrient loss at a slope of 5°.

  • temperature-dependent viscosity model of hpam polymer

    Temperature-dependent viscosity model of HPAM polymer

    3. Temperature-dependent viscosity model. The polymer concentration flowing through porous media under normal conditions can be expressed as: (1) ϕ S w ∂ C p ∂ t + (1 − ϕ) ρ ρ w (∂ C ads ∂ t) = ∇ · (D · ∇ C p) − u w · ∇ C p where ϕ and S w are the porosity and the water saturation, respectively.

  • polyacrylamide molecular weight and charge effects

    Polyacrylamide Molecular Weight and Charge Effects

    Polyacrylamide Molecular Weight and Charge Effects on Infiltration under Simulated Rainfall V. Steven Green, D. E. Stott,* L. D. Norton, and J. G. Graveel ABSTRACT Different methods have been used to quantify the Soil sealing is a severe problem worldwide. Increased runoff and amount of sealing or crusting that takes place. These

  • chemical stability limits of water-soluble polymers used

    Chemical stability limits of water-soluble polymers used

    @article{osti_5287759, title = {Chemical stability limits of water-soluble polymers used in oil recovery processes}, author = {Ryles, R.G.}, abstractNote = {This work describes long-term thermal stability limits of water-soluble polymers under anaerobic conditions. Polymers investigated included polyacrylamide, xanthan, scleroglucan, cellulose sulfate, and a heteropolysaccharide of unknown

  • long-term polymer degradation in high ph solutions

    Long-term Polymer Degradation in High pH Solutions

    Summary OMV's 16 Tortonian Horizon (TH) reservoir is considered a suitable candidate for EOR via Alkali-Surfactant-Polymer A(S)P flooding. Polymer stability in A(S)P applications is a major concern mainly due to effects of temperature and brine salinity composition. Within this work, we evaluate the effect of temperature, dissolved-oxygen and presence of alkali on polymer stability in a long-term.

  • temperature-dependent viscosity model of hpam

    Temperature-dependent viscosity model of HPAM

    2014-12-01· Read "Temperature-dependent viscosity model of HPAM polymer through high-temperature reservoirs, Polymer Degradation and Stability" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • stiff, strong,and tough hydrogels with good chemical

    Stiff, strong,and tough hydrogels with good chemical

    industry,9 or artificial nerves and muscles in the nascent field of soft machines.10 Substitutes for cartilage require high stiffness (1 MPa), high toughness (1,000 Jm-2), and high water content (60-80 %).11 Materials for oil packers require high stiffness, high strength, and chemical stability;

  • the effect of polyacrylamide (pam) applications

    The effect of polyacrylamide (PAM) applications

    The effect of polyacrylamide (PAM) applications on infiltration, runoff and soil losses under simulated rainfall conditions Zeynal Tümsava ş1* and Ali Kara 2 1Department of Soil Science and Plant Nutrition, Agriculture Faculty, Uludag University, Gorukle Campus, 16059, Bursa-Turkey. 2Department of Chemistry, Uludag University, Gorukle Campus,

  • quantitative characterization of polyacrylamide–shale

    Quantitative characterization of polyacrylamide–shale

    2017-06-22· Interaction of injected fluids such as drilling, fracturing and completion fluids with shale has been a problem for many decades in the oil field, and shale constitutes 75% of all the formations drilled by the oil and gas industry (Khodja et al. 2010).Over the years, many studies have been conducted to quantify shale–fluid interaction and also to minimize this interaction.

  • polymers free full-text effect of aging, antioxidant

    Polymers Free Full-Text Effect of Aging, Antioxidant

    Unhydrolyzed polyacrylamide-based polymer was one of the main synthetic polymers initially considered by the oil industry in the polymer flooding process because of its chemical stability. However, its ability to increase viscosity was low and they encountered high adsorption onto mineral surfaces causing significant loss [ 5,6 ].

  • polyacrylamide drilling for kuwait oil industry

    Polyacrylamide Drilling for Kuwait oil industry

    chemical polyacrylamide use for drilling oil industry in. chemical polyacrylamide use for drilling oil industry in middle east market. Best lubricant chemical for Turkey oil drilling field Polyacrylamide, US $ 1,500 2,500 / Metric Ton, Chemical Auxiliary Agent, 9003-05-8, Waste water treatment flocculant chemical.Source from Yixing Bluwat

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    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

  • long-term polymer degradation in high ph solutions

    Long-term Polymer Degradation in High pH Solutions

    Summary OMV's 16 Tortonian Horizon (TH) reservoir is considered a suitable candidate for EOR via Alkali-Surfactant-Polymer A(S)P flooding. Polymer stability in A(S)P applications is a major concern mainly due to effects of temperature and brine salinity composition. Within this work, we evaluate the effect of temperature, dissolved-oxygen and presence of alkali on polymer stability in a long-term.

  • impact of raindrop diameter and polyacrylamide

    Impact of raindrop diameter and polyacrylamide

    2019-11-01· Raindrop splashing is one of the driving forces of soil erosion, and it also leads to the loss of soil nutrients. However, the effects of raindrop splashing on nitrogen loss and the mechanisms of detachment are still not well understood, especially under different types of rainfall and soil amendment applications, such as polyacrylamide, which has been widely used to reduce soil erosion.

  • polymers free full-text effect of aging, antioxidant

    Polymers Free Full-Text Effect of Aging, Antioxidant

    Unhydrolyzed polyacrylamide-based polymer was one of the main synthetic polymers initially considered by the oil industry in the polymer flooding process because of its chemical stability. However, its ability to increase viscosity was low and they encountered high adsorption onto mineral surfaces causing significant loss [ 5,6 ].

  • polyacrylamide molecular weight and charge effects

    Polyacrylamide Molecular Weight and Charge Effects

    Polyacrylamide Molecular Weight and Charge Effects on Infiltration under Simulated Rainfall V. Steven Green, D. E. Stott,* L. D. Norton, and J. G. Graveel ABSTRACT Different methods have been used to quantify the Soil sealing is a severe problem worldwide. Increased runoff and amount of sealing or crusting that takes place. These

  • the effect of polyacrylamide (pam) applications

    The effect of polyacrylamide (PAM) applications

    The effect of polyacrylamide (PAM) applications on infiltration, runoff and soil losses under simulated rainfall conditions Zeynal Tümsava ş1* and Ali Kara 2 1Department of Soil Science and Plant Nutrition, Agriculture Faculty, Uludag University, Gorukle Campus, 16059, Bursa-Turkey. 2Department of Chemistry, Uludag University, Gorukle Campus,

  • polyacrylamide soil amendment effects on runoff

    POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF

    and soil loss on low–slope field plots under natural and simulated rainfall conditions. A liquid solution of PAM applied at rate of 25 kg ha–1 from a perforated pail onto disturbed soil was effective in reducing runoff and soil loss. They concluded that PAM application could provide useful temporary reductions in sheet and rill erosion, and

  • polyacrylamide drilling for kuwait oil industry

    Polyacrylamide Drilling for Kuwait oil industry

    chemical polyacrylamide use for drilling oil industry in. chemical polyacrylamide use for drilling oil industry in middle east market. Best lubricant chemical for Turkey oil drilling field Polyacrylamide, US $ 1,500 2,500 / Metric Ton, Chemical Auxiliary Agent, 9003-05-8, Waste water treatment flocculant chemical.Source from Yixing Bluwat

  • quantitative characterization of polyacrylamide–shale

    Quantitative characterization of polyacrylamide–shale

    2017-06-22· Interaction of injected fluids such as drilling, fracturing and completion fluids with shale has been a problem for many decades in the oil field, and shale constitutes 75% of all the formations drilled by the oil and gas industry (Khodja et al. 2010).Over the years, many studies have been conducted to quantify shale–fluid interaction and also to minimize this interaction.

  • viscosity of partially hydrolyzed polyacrylamide

    Viscosity of partially hydrolyzed polyacrylamide

    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

  • acrylamide release resulting from sunlight irradiation

    Acrylamide Release Resulting from Sunlight Irradiation

    Linear anionic polyacrylamide (PAM) has been used in irrigation practices as a flocculating agent to minimize water losses through seepage in earthen canals. The stability of PAM is of concern because of the possibility of acrylamide (AMD) monomer release during environmental weathering. Aqueous solutions of commercial PAM mixed with ferric sulfate, subjected to simulated and natural sunlight

  • chemical treatment pilot project

    Chemical Treatment Pilot Project

    SFWMD. Chemical Treatment / Solid Separation. SFWMD. CT-SS Analytical Data. SFWMD. CT-SS Field Data. SFWMD. 2001. Report on Conducting Pilot Scale Treatability Studies for the Everglades Stormwater Program (ESP) Urban and Tributary Basins Program. HSA, West Palm Beach. SFWMD. Evaluating the P Release from Ferric and Alum Residuals at the CT-SS

  • a guide to polyacrylamide gel electrophoresis and detection

    A Guide to Polyacrylamide Gel Electrophoresis and Detection

    Polyacrylamide Gel Electrophoresis (PAGE) When electrophoresis is performed in acrylamide or agarose gels, the gel serves as a size-selective sieve during separation. As proteins move through a gel in response to an electric field, the gel’s pore structure allows smaller proteins to travel more rapidly than larger proteins (Figure 2.1). For

  • spent fuel and high level waste: chemical durability

    Spent Fuel and High Level Waste: Chemical Durability

    Chemical Durability and Performance under Simulated Repository Conditions Results of a Coordinated Research Project 1998–2004 October 2007. IAEA-TECDOC-1563 Spent Fuel and High Level Waste: Chemical Durability and Performance under Simulated Repository Conditions Results of a Coordinated Research Project 1998–2004 October 2007. The originating Section of this publication in the IAEA

  • systematic comparative study of polyacrylamide co polymers

    Systematic comparative study of Polyacrylamide Co polymers

    A systematic comparative study of the screening of commercial partial hydrolysed polyacrylamide (PHPA), and copolymers of acrylamide and hydrophobic modified Comb-polymers (HMPAM) under high salinity conditions is investigated. Synthetic high salinity and multicomponent produced water

  • soil science society of america journal abstract soil

    Soil Science Society of America Journal Abstract Soil

    2005-06-24· Effect of Polyacrylamide Application on Runoff, Erosion, and Soil Nutrient Loss Under Simulated Rainfall Pedosphere 2011 21:5 Development of a mineralogical matrix at the adsorption of polyelectrolytes on soil minerals and soils Eurasian Soil Science 2012 45:11

  • viscosity stability of aqueous polysaccharide solutions

    Viscosity stability of aqueous polysaccharide solutions

    OSTI.GOV Conference: Viscosity stability of aqueous polysaccharide solutions. Viscosity stability of aqueous polysaccharide solutions

  • polyacrylamide soil amendment effects on runoff

    POLYACRYLAMIDE SOIL AMENDMENT EFFECTS ON RUNOFF

    and soil loss on low–slope field plots under natural and simulated rainfall conditions. A liquid solution of PAM applied at rate of 25 kg ha–1 from a perforated pail onto disturbed soil was effective in reducing runoff and soil loss. They concluded that PAM application could provide useful temporary reductions in sheet and rill erosion, and

  • effects of polyacrylamide application on infiltration

    EFFECTS OF POLYACRYLAMIDE APPLICATION ON INFILTRATION

    Summary Surface crust of soil, especially Loess, formed under the impact of raindrops will significantly affect rain water infiltration rate. Polyacrylamide(PAM)can effectively prevent crust formation and improve soil structure and enhance soil permeability. To clearly relate PAM application with infiltration rate, experiments were conducted with rainfall simulator under laboratory conditions

  • 2-acrylamido-2-methylpropane sulfonic acid

    2-Acrylamido-2-methylpropane sulfonic acid

    2-Acrylamido-2-methylpropane sulfonic acid (AMPS) was a Trademark name by The Lubrizol Corporation.It is a reactive, hydrophilic, sulfonic acid acrylic monomer used to alter the chemical properties of wide variety of anionic polymers. In the 1970s, the earliest patents using this monomer were filed for acrylic fiber manufacturing.

  • characterization of shale–fluid interaction through a

    Characterization of shale–fluid interaction through a

    This paper presents qualitative techniques for evaluating shale–fluid interaction. Undesirable shale–fluid interactions lead to wellbore instability, formation damage and other problems that cost the petroleum industry millions of dollars annually. A simple desktop test method, such as immersion testing, can help production engineers choose the appropriate shale inhibitors such as salt

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