influences of partially hydrolyzed polyacrylamide (hpam

Influences of partially hydrolyzed polyacrylamide (HPAM

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.

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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 of PWPF.

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biodegradation of partially hydrolyzed polyacrylamide hpam

Biodegradation of Partially Hydrolyzed Polyacrylamide HPAM

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

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hydrolysis and thermal stability of partially hydrolyzed

Hydrolysis and thermal stability of partially hydrolyzed

The hydrolysis reaction of the amide groups to the acrylate groups of the HPAM chain was significantly affected by rising temperature: at 50 °C, hydrolysis occurred, but not as significantly as at 70, 85, 90, and 95 °C. Hydrolysis up to 84% was observed for solutions processed at 90 °C.

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influence of hydrolyzed polyacrylamide (hpam) molecular

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.

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stability of biopolymer and partially hydrolyzed

Stability of Biopolymer and Partially Hydrolyzed

The results indicated that oxygen is the limiting reagent in the degradation reaction with partially hydrolyzed polyacrylamide (HPAM) polymers under normal reservoir conditions. We observed little-to-no difference in degradation between samples with 10 or 100 ppm H 2 S at 500 ppb oxygen concentration, so H 2 S is not the limiting reagent under

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a comprehensive study of hydrolyzed polyacrylamide

A Comprehensive Study of Hydrolyzed Polyacrylamide

In this work, we comprehensively investigate the physical properties and performance of a molecular-weight series (3–20 × 10 6 g/mol) of partially hydrolyzed polyacrylamide (HPAM) in silicon anodes. We quantify the mechanical strength, electrolyte uptake, adhesion to silicon, copper, and carbon, as well as electrochemical performance and stability and find that HPAM satisfies many of the properties generally believed to be favorable, including good adhesion, high strength, and

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polyacrylamide degradation and its implications

Polyacrylamide degradation and its implications

Hao, X., et al. Influences of partially hydrolyzed polyacrylamide (HPAM) residue on the flocculation behavior of oily wastewater produced from polymer flooding. Sep. Purif. Technol. 62, 199–204

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the associative polymer flooding: an experimental study

The associative polymer flooding: an experimental study

Two polymer types were used (see Table 1)—associative polymer Superpusher™ of SNF Company, and partially hydrolyzed polyacrylamide HPAM.Polymer mixtures with the concentration of 4000 ppm were mixed with the water with the mineralization 0.5 mg/l of NaCl and hydrated 24 h to generate the mother solution using magnetic stirrer.

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an experimental study on hydrodynamic retention of low

An Experimental Study on Hydrodynamic Retention of Low

neglected in most polymer flooding applications [18]. Chauveteau and Kohler noticed that Partially Hydrolyzed Polyacrylamide (HPAM) polymer retention changed with the change in flow rates [20]. Their experiment demonstrated the e ect of hydrodynamic retention by increasing the flow rate from 3 to 10.3 m3/days. This resulted in more losses of

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network-gel strength relationship and performance

Network-gel strength relationship and performance

In this work, partially hydrolyzed polyacrylamide (HPAM) with an average molecular weight of 6 × 10 6 Da was purchased by SNF Company (France) in the powder form. In this type of polymers, the sulfonic group replaces the amide functional group (NH 2).As a result, the resistance of these polymers to cationic increases incomparsion to conventional polymers.

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experimental investigation of polymer flooding with low

Experimental investigation of polymer flooding with low

There are mainly two types of polymers used for oil recovery purposes: synthetic partially hydrolyzed polyacrylamide HPAM (and its derivatives) and biopolymer such as Xanthan (Sheng et al. 2015). HPAMs are the most widely used polymers for IOR applications compared to the biopolymers (Samanta et al. 2010; Sorbie 2013).

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rheology of hydrophobically associating polymers

Rheology of Hydrophobically Associating Polymers

acrylamide copolymers, partially hydrolyzed polyacrylamide (HPAM), or biopolymers such as xanthan or guar gum.1,2 The rheology of HPAM8 and biopolymers9 for enhanced oil recovery has been studied in detail. Biopolymers such as xanthan are not easily shear-degraded and are not sensitive to an increase in salinity or divalent ion concentration.

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preliminary study by reservoir simulation of field trial

Preliminary Study by Reservoir Simulation of Field Trial

Polyacrylamide (PAM) is the most inorganic polymer type which is usually used in injection for enhanced oil recovery. Furthermore, hydrolyzed polyacrylamide (HPAM) is a common polymer used in polymer injection, but it has the sensitivity towards salinity and temperature. Thus, the experiment modified PAM and HPAM with silica aims to improve the performance of polymer toward temperature and

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effect of surfactant and hydrophobe content

Effect of Surfactant and Hydrophobe Content

Water soluble polymers include the partially Hydrolyzed Polyacrylamide (HPAM). Solubility of HPAMs in water is due to the polar amide group (-CONH 2 ) and the ionic carboxylate group (-CO 2 - M + ). The hydrodynamic volume of HPAMs is increased in water as a result of the electrostatic repulsion between the carboxylate groups (COO - ) thereby

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investigation of the degradation and stability

Investigation of the degradation and stability

Choi , et al., systematically studied the properties of hydrolyzed polyacrylamide, also known as pH-sensitive polymer (pH-triggered polymer). They discovered that the viscosity of hydrolyzed polyacrylamide exhibits pH dependence as characterized by transition zones (at pH = 3 and pH = 6), where the viscosity suddenly changes.

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effect of surfactant and hydrophobe content

Effect of Surfactant and Hydrophobe Content

Water soluble polymers include the partially Hydrolyzed Polyacrylamide (HPAM). Solubility of HPAMs in water is due to the polar amide group (-CONH 2 ) and the ionic carboxylate group (-CO 2 - M + ). The hydrodynamic volume of HPAMs is increased in water as a result of the electrostatic repulsion between the carboxylate groups (COO - ) thereby

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network-gel strength relationship and performance

Network-gel strength relationship and performance

In this work, partially hydrolyzed polyacrylamide (HPAM) with an average molecular weight of 6 × 10 6 Da was purchased by SNF Company (France) in the powder form. In this type of polymers, the sulfonic group replaces the amide functional group (NH 2).As a result, the resistance of these polymers to cationic increases incomparsion to conventional polymers.

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dynamics, aggregation, and interfacial properties

Dynamics, Aggregation, and Interfacial Properties

Partially Hydrolyzed Polyacrylamide Polymer for Enhanced Oil Recovery Applications: Insights from Molecular Saudi Arabia. * Corresponding author Safwat Abdel-Azeim: abdelazeim@kfupm.edu.sa Cluster populations for the three HPAM oligomers and the backbone conformation

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an experimental study on hydrodynamic retention of low

An Experimental Study on Hydrodynamic Retention of Low

neglected in most polymer flooding applications [18]. Chauveteau and Kohler noticed that Partially Hydrolyzed Polyacrylamide (HPAM) polymer retention changed with the change in flow rates [20]. Their experiment demonstrated the e ect of hydrodynamic retention by increasing the flow rate from 3 to 10.3 m3/days. This resulted in more losses of

Get Price
the associative polymer flooding: an experimental study

The associative polymer flooding: an experimental study

Two polymer types were used (see Table 1)—associative polymer Superpusher™ of SNF Company, and partially hydrolyzed polyacrylamide HPAM.Polymer mixtures with the concentration of 4000 ppm were mixed with the water with the mineralization 0.5 mg/l of NaCl and hydrated 24 h to generate the mother solution using magnetic stirrer.

Get Price
experimental investigation of polymer flooding with low

Experimental investigation of polymer flooding with low

There are mainly two types of polymers used for oil recovery purposes: synthetic partially hydrolyzed polyacrylamide HPAM (and its derivatives) and biopolymer such as Xanthan (Sheng et al. 2015). HPAMs are the most widely used polymers for IOR applications compared to the biopolymers (Samanta et al. 2010; Sorbie 2013).

Get Price
research article rheological study on atbs-am copolymer

Research Article Rheological Study on ATBS-AM Copolymer

SP system were investigated by means of oscillation and shear measurements. Comparison with classical partially hydrolyzed polyacrylamide (HPAM) was made. For the same temperature range, the viscosity drop for HPAM was about four times higher than the viscosity drop for ATBS-AM copolymer.

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a comprehensive review of polyacrylamide polymer gels

A comprehensive review of polyacrylamide polymer gels

The oil industry demanded a more cost-effective treatment. 1.2. Conventional In-situ Polymer/Gels In the 1970s, Philips Co. (now ConocoPhilips) pioneered the first in-situ polymer gels using partially hydrolyzed poly- acrylamides (HPAM) and aluminum citrate, which were the precursors for conformance control [2] .

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the associative polymer flooding: an experimental study

The associative polymer flooding: an experimental study

Two polymer types were used (see Table 1)—associative polymer Superpusher™ of SNF Company, and partially hydrolyzed polyacrylamide HPAM.Polymer mixtures with the concentration of 4000 ppm were mixed with the water with the mineralization 0.5 mg/l of NaCl and hydrated 24 h to generate the mother solution using magnetic stirrer.

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polymer anionic polyacrylamide for crude oil drag reducing

polymer anionic polyacrylamide for crude oil drag reducing

The influence of polyacrylamide (PAM) as drag reducing polymer on flow of Iraqi crude oil in pipe lines was investigated in the present work. The effect additive concentration, pipe diameter, solution flow rate and the presence of radius elbows on the percentage of drag reduction (%Dr) and the amount of flow increases (%FI) were the variables

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experimental investigation of polymer flooding with low

Experimental investigation of polymer flooding with low

There are mainly two types of polymers used for oil recovery purposes: synthetic partially hydrolyzed polyacrylamide HPAM (and its derivatives) and biopolymer such as Xanthan (Sheng et al. 2015). HPAMs are the most widely used polymers for IOR applications compared to the biopolymers (Samanta et al. 2010; Sorbie 2013).

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role of chemical additives and their rheological

Role of chemical additives and their rheological

Lewandowska K. Comparative studies of rheological properties of polyacrylamide and partially hydrolyzed polyacrylamide solutions. J Appl Poly Sci 2007; 103: 2235–2241. Li HR, Li ZQ, Song XW, Li CB, Guo LL, Zhang L, Zhang L, Zhao S. Effect of organic alkalis on interfacial tensions of surfactant/polymer solutions against hydrocarbons.

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molecular morphology and viscoelasticity of asp solution

Molecular Morphology and Viscoelasticity of ASP Solution

2.2. Chemicals. The polymer used to prepare ASP solution in this experiment is partially hydrolyzed polyacrylamide (HPAM), with relative molecular weights of 16 million, 19 million, and 25 million and a hydrolysis degree of about 26% (Daqing Oilfield Production Technology Research Institute, Daqing, China).

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research article rheological study on atbs-am copolymer

Research Article Rheological Study on ATBS-AM Copolymer

SP system were investigated by means of oscillation and shear measurements. Comparison with classical partially hydrolyzed polyacrylamide (HPAM) was made. For the same temperature range, the viscosity drop for HPAM was about four times higher than the viscosity drop for ATBS-AM copolymer.

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effect of polymer adsorption on permeability reduction

Effect of Polymer Adsorption on Permeability Reduction

In order to reduce the permeability to water or brine, there is a possibility of polymer injection into the reservoir. In the present work, special focus has been paid in polymer [partially hydrolyzed polyacrylamide (PHPA)] injection as a part of chemical method. Tests were conducted in the laboratory at the ambient temperature to examine the reduction in permeability to water or brine in the

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a review on applications of nanotechnology in the enhanced

A review on applications of nanotechnology in the enhanced

In enhanced oil recovery, a dilute aqueous solution of partially hydrolyzed polyacrylamide is used as a pushing fluid in the injection wells to sweep oil in the reservoir into the production well. Mobility reduction or viscosity behavior of partially hydrolyzed polyacrylamide polyelectrolyte solutions plays an important role in such applications.

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