a review of the partly hydrolyzed polyacrylamide cr
a review of the partly hydrolyzed polyacrylamide cr
a review of the partly hydrolyzed polyacrylamide cr
a review of the partly hydrolyzed polyacrylamide cr
a review of the partly hydrolyzed polyacrylamide cr
a review of the partly hydrolyzed polyacrylamide cr(iii) acetate

A Review of the Partly Hydrolyzed Polyacrylamide Cr(III) Acetate

The objective of this article is to present the main factors affecting the reaction kinetics, rheology, gelation time, syneresis, and characterization of partly hydrolyzed polyacrylamide Cr (III) polymer gels. Keywords: Cr (III) acetate enhanced oil recovery gels gel treatments HPAm ACKNOWLEDGMENTS

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a comprehensive review of polyacrylamide polymer gels for conformance

A comprehensive review of polyacrylamide polymer gels for conformance

Abstract Polymer gels have been designed and successfully applied to improve sweep efficiency and to reduce excessive water production by minimizing reservoir heterogeneity.

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hydrolyzed polyacrylamide/chromium(iii) acetate gel chemistry

Hydrolyzed Polyacrylamide/Chromium(III) Acetate Gel Chemistry

Abstract Proton NMR and visible spectroscopy are used to investigate the chemistry of hydrolyzed polyacrylamide/chromium acetate gels.

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partially hydrolyzed polyacrylamide: enhanced oil recovery applications

Partially hydrolyzed polyacrylamide: enhanced oil recovery applications

Polyacrylamide and partially hydrolyzed polyacrylamide. Polyacrylamide (PAM) is a synthetic polymer of long-chain acrylamide subunits, high molecular weight (1000 to 20 ¡Á 10 6 g/mol), and a wide range degree of hydrolysis (Abidin et al., 2012; Joshi & Abed, 2017).

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experimental and mechanism study: partially hydrolyzed polyacrylamide

Experimental and mechanism study: Partially hydrolyzed polyacrylamide

Abstract Partially hydrolyzed Polyacrylamide (PHPAM) crosslinked by Cr +3 is frequently applied to plug thief zone for the better water management in matured oil reservoir. However, PHPAM gel may certainly cause inevitable formation damage nearby the wellbore.

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polyacrylamide degradation and its implications in environmental

Polyacrylamide degradation and its implications in environmental

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,...

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investigation on gelation process and microstructure for partially

Investigation on gelation process and microstructure for partially

Compound crosslinked hydrolyzed polyacrylic amide (HPAm) weak gels were synthesized by an in situ crosslinking method using Cr (III) acetate and methanal as crosslinkers. The weak gels were crosslinked by both covalent bonds and coordination bonds.

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recent advances in enhanced polymer gels for profile control and water

Recent advances in enhanced polymer gels for profile control and water

2 Nano silica-enhanced gel system. Because of the gradual complexity of the reservoir conditions, conventional polymer gels like polyacrylamide (PAM) polymer gel systems and xanthan gum quickly break down or precipitate (Samuelson and Constien, 1996) when the reservoir temperature is more than 80¡ãC and the salinity is more than 50,000 mg/L (Caulfield et al., 2002; Zhao et al., 2013).

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(pdf) investigating the effect of several parameters on the gelation

(PDF) Investigating the Effect of Several Parameters on the Gelation

partially hydrolyzed polyacrylamide Cr(III) acetate polymer gels. ... review on polymer gelation models, assessment of the state-of-the-art in responsive polymers, and gelation time predictions

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experimental research of syneresis mechanism of hpam/cr

Experimental research of syneresis mechanism of HPAM/Cr

Abstract. Experimental investigations have been conducted to elucidate the syneresis mechanism of HPAM (partly hydrolyzed polyacrylamide)/Cr 3+ gel. The gel prepared with HPAM of high hydrolysis degree is apt to result in the syneresis, since HPAM with more carboxylate group is easier to be over-crosslinked.

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