the rheological behavior of salt tolerant polyacrylamide

The Rheological Behavior of Salt Tolerant Polyacrylamide

The rheological behavior of viscoelastic fluids was investigated with regard to the specialty of tertiary oil recovery. Aqueous polyacrylamide solutions at different concentrations were selected to simulate viscoelastic polymer systems, and the Haake RS 150 type rheometer was used to measure the rheological behavior.

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the rheological behavior of salt tolerant polyacrylamide

The Rheological Behavior of Salt Tolerant Polyacrylamide

The rheological properties of salt-tolerant partially hydrolyzed polyacrylamide (HPAM)solutions with molecular of 2.5×107 g/mol at different concentrations were measured in steady-state shear

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the rheological behavior of salt tolerant polyacrylamide

The Rheological Behavior of Salt Tolerant Polyacrylamide

The Rheological Behavior of Salt Tolerant Polyacrylamide Solutions The Rheological Behavior of Salt Tolerant Polyacrylamide Solutions Zhang, L.; Zhang, D.; Jiang, B. 2006-03-01 00:00:00 1 Introduction Among all the methods to improve oil recovery efficiency, polymer oil extraction is one of the fastest developing methods. Due to the geology differences of the terrestrial reservoir in China

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rheological properties of salt-tolerant hpam solutions

Rheological properties of salt-tolerant HPAM solutions

Abstract. The rheological properties of salt-tolerant partially hydrolyzed polyacrylamide (HPAM)solutions with molecular of 2.5×10 7 g/mol at different concentrations were measured in steady-state shear flow mode by Haake Rheostress 150 rheometer. Three constitutive equations (Oldroyd four constant model, Guesekus model and FENE-P model) were used for describing the apparent viscosity and

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synthesis, characterization, rheological behavior,

Synthesis, characterization, rheological behavior,

Synthesis, characterization, rheological behavior, and shear response of hydrophobically modified polyacrylamide and network structure of its microhydrogel Guoqing Jiang Enhanced Oil Recovery Laboratory, Daqing Oilfield Exploration and Development Research Institute, Daqing 163712, China

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study on rheological behavior and salt-thickening

Study on rheological behavior and salt-thickening

Steady rheological experiments are performed to investigate the rheological behavior of PABC in NaCl solution. Fig. 5 C and D show that, as a typical shear-thinning fluid, the shear viscosities of all solutions decline gradually with the increase of shear rate, resulting from the destruction of three-dimensional network of polymer molecules.

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effects of alkali, salts, and surfactant on rheological

Effects of Alkali, Salts, and Surfactant on Rheological

Aqueous polyacrylamide solutions at different concentrations were selected to simulate viscoelastic polymer systems, and the Haake RS 150 type rheometer was used to measure the rheological behavior.

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effect of ionic strength on the rheological properties

Effect of Ionic Strength on the Rheological Properties

The rheological behavior in the presence of electrolyte for two polymers with two different hydrophobic block lengths (N H = 3 or 7 monomer units per block) was compared to that obtained for salt-free systems. At a fixed salt concentration, the critical concentration at the onset of viscosity enhancement does not depend on the length of the

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us patent for salt-tolerant, thermally-stable rheology

US Patent for Salt-tolerant, thermally-stable rheology

A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.

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journal of dispersion science and technology: vol 36, no 12

Journal of Dispersion Science and Technology: Vol 36, No 12

Thermal degradation behavior of seawater based temporary plugging gel crosslinked by polyethyleneimine for fluid loss control in gas well: Kinetics study and degradation prediction Experimental Validation of the Temperature-Resistant and Salt-Tolerant Xanthan Enhanced Foam for Enhancing Oil Recovery. Lin Sun Rheological Properties of a

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adaptive and freeze-tolerant heteronetwork organohydrogels

Adaptive and freeze-tolerant heteronetwork organohydrogels

Adaptive and freeze-tolerant heteronetwork organohydrogels with enhanced mechanical stability over a wide temperature range. Nat. Commun. 8, 15911 doi: 10.1038/ncomms15911 (2017). Publisher’s note: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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shear behavior at high pressures and viscoelastic

Shear behavior at high pressures and viscoelastic

Consecutive shear behaviors of PASV were investigated at high pressures of 5–20 MPa as well as atmospheric pressure to reveal rheological performance of oil-flooding polymers in oil reservoirs. PASV displays an excellent thickening effect induced by salt as well as good associated behavior in aqueous solutions.

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2019年生物纳米研究最新热点报道(七)--纳米医学网

2019年生物纳米研究最新热点报道(七)--纳米医学网

These errors refer to panels in Figures 5 and 8, and these could affect the main conclusions of this work. The original Article was published on April 11, 2012, and retracted on July 26, 2019. This article has not yet been cited by other publications.

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hpam hydrolyzed polyacrylamide polymer in soil humectant

HPAM Hydrolyzed polyacrylamide polymer in soil humectant

Polyacrylamide degradation and its implications in. Sep 07, 2018· 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. Cited by: 2; Polyacrylamide Wikipedia. Polyacrylamide is also used in some

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1. introduction

1. Introduction

Therefore, polymers containing sulfonate groups are expected to offer higher stability in solution [6] and can be tolerant to the action of high salt. Candidate AM-based copolymers suitable for testing can be prepared by copolymerization of AM with another vinyl-type monomers or by the chemical modification of polyacrylamide itself [7].

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advantageous supramolecular system through self

Advantageous supramolecular system through self

The effect of surfactant type (i.e. anionic and/or cationic) and brine concentration (2.10 and 8.41 wt%) on self-association was established and compared to the behavior of a self-assembled system of a partly hydrolyzed polyacrylamide (HPAM)/surfactant/β-CD. Results demonstrate that self-assembly is surfactant dependent.

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www.rd.sdu.edu.cn

www.rd.sdu.edu.cn

4.8029999999999999 24875 2015. 4.8029999999999999 25148 2015. 3.2890000000000001 24485 2015. 1 2.383 26452 2015. 1 3.0139999999999998 25600 2015. 2.359 26106 2015. 0

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www.huanke.sdu.edu.cn

www.huanke.sdu.edu.cn

4.8029999999999999 24875 2015 4.8029999999999999 25148 2015 3.2890000000000001 24485 2015 2.383 26452 2015 3.0139999999999998 25600 2015 2.359 26106 2015 1.7529999999999999 24225 2015 1.0940000000000001 25695 2015 1.5680000000000001

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adaptive and freeze-tolerant heteronetwork organohydrogels

Adaptive and freeze-tolerant heteronetwork organohydrogels

Adaptive and freeze-tolerant heteronetwork organohydrogels with enhanced mechanical stability over a wide temperature range. Nat. Commun. 8, 15911 doi: 10.1038/ncomms15911 (2017). Publisher’s note: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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journal of dispersion science and technology: vol 36, no 12

Journal of Dispersion Science and Technology: Vol 36, No 12

Thermal degradation behavior of seawater based temporary plugging gel crosslinked by polyethyleneimine for fluid loss control in gas well: Kinetics study and degradation prediction Experimental Validation of the Temperature-Resistant and Salt-Tolerant Xanthan Enhanced Foam for Enhancing Oil Recovery. Lin Sun Rheological Properties of a

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structured liquid detergent compositions containing

Structured liquid detergent compositions containing

The present invention relates to liquid detergent compositions comprising linear or cross-linked, water soluble, highly salt-tolerant, nonionic polymers of MW 10,000 to 1,000,000 Daltons which, when added to structured heavy duty liquids makes the liquid highly shear thinning without decreasing pour viscosity of the composition or increasing it to a point where it is too thick.

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review of hydrogels and aerogels containing nanocellulose

Review of Hydrogels and Aerogels Containing Nanocellulose

Naturally derived cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) are emerging nanomaterials that display high strength, high surface area, and tunable surface chemistry, allowing for controlled interactions with polymers, nanoparticles, small molecules, and biological materials. Industrial production of nanocelluloses is increasing rapidly with several companies already

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drag-reduction effectiveness of xanthan gum in a rotating

Drag-reduction effectiveness of xanthan gum in a rotating

Drag-reduction effectiveness of xanthan gum in a rotating disk apparatus Published on May 1, 2001 in Carbohydrate Polymers 6.044 · DOI : 10.1016/S0144-8617(00)00232-0 Copy DOI

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implications for public health demands alternatives

Implications for public health demands alternatives

Chemical flocculants are generally used in drinking water and wastewater treatment due to their efficacy and cost effectiveness. However, the question of their toxicity to human health and environmental pollution has been a major concern. In this article,

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glutaraldehyde: behavior in aqueous solution, reaction

Glutaraldehyde: behavior in aqueous solution, reaction

Glutaraldehyde possesses unique characteristics that render it one of the most effective protein crosslinking reagents. It can be present in at least 13 different forms depending on solution conditions such as pH, concentration, temperature, etc. Substantial literature is found concerning the use of glutaraldehyde for protein immobilization, yet there is no agreement about the main reactive

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www.rd.sdu.edu.cn

www.rd.sdu.edu.cn

4.8029999999999999 24875 2015. 4.8029999999999999 25148 2015. 3.2890000000000001 24485 2015. 1 2.383 26452 2015. 1 3.0139999999999998 25600 2015. 2.359 26106 2015. 0

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glutaraldehyde: behavior in aqueous solution, reaction

Glutaraldehyde: behavior in aqueous solution, reaction

Glutaraldehyde possesses unique characteristics that render it one of the most effective protein crosslinking reagents. It can be present in at least 13 different forms depending on solution conditions such as pH, concentration, temperature, etc. Substantial literature is found concerning the use of glutaraldehyde for protein immobilization, yet there is no agreement about the main reactive

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drag reduction effectiveness of dilute and entangled

Drag reduction effectiveness of dilute and entangled

Abstract The ability to reduce the frictional drag in turbulent flow in pipes and channels by addition of a s | Nicholas B. Wyatt, Casey M. Gunther, Matthew W. Li | Journal of Non-newtonian Fluid Mechanics |

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scientia agricultura sinica

Scientia Agricultura Sinica

In salt-treatment, the expression of SoNADP-IDH showed an “increase-suppression-increase” pattern, reached the peak at 6 h, then began to decline sharply, down to the lowest at 24 h, then began to rise, and basically flatted with the control at 48 h was firstly

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drag-reduction effectiveness of xanthan gum in a rotating

Drag-reduction effectiveness of xanthan gum in a rotating

Drag-reduction effectiveness of xanthan gum in a rotating disk apparatus Published on May 1, 2001 in Carbohydrate Polymers 6.044 · DOI : 10.1016/S0144-8617(00)00232-0 Copy DOI

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implications for public health demands alternatives

Implications for public health demands alternatives

Chemical flocculants are generally used in drinking water and wastewater treatment due to their efficacy and cost effectiveness. However, the question of their toxicity to human health and environmental pollution has been a major concern. In this article,

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acrylamide copolymer thickener for aqueous systems - rohm

Acrylamide copolymer thickener for aqueous systems - Rohm

Similarly, unusual behavior is found in the rheological properties of emulsions, suspensions and other multiphase systems, such as those containing both liquid and solid phases (mixed emulsions and suspensions), comprising this acrylamide copolymer in aqueous solution or at an aqueous interface. After removal of the salt by filtration, the

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