npam nonionic polyacrylamide in oil field as auxiliary
npam nonionic polyacrylamide in oil field as auxiliary
npam nonionic polyacrylamide in oil field as auxiliary
npam nonionic polyacrylamide in oil field as auxiliary
npam nonionic polyacrylamide in oil field as auxiliary
the thermal gelation behavior and performance evaluation

The Thermal Gelation Behavior and Performance Evaluation

The Thermal Gelation Behavior and Performance Evaluation of High Molecular Weight Nonionic Polyacrylamide and Polyethyleneimine Mixtures for In-Depth Water Control in Mature Oilfields - PMC Journal List Materials (Basel) PMC7560312 As a library, NLM provides access to scientific literature.

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journal of applied polymer science | wiley online library

Journal of Applied Polymer Science | Wiley Online Library

ABSTRACT Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization.

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the thermal gelation behavior and performance evaluation

The thermal gelation behavior and performance evaluation

systems prepared with nonionic polyacrylamide (NPAM) were studied. The low initial viscosity before crosslinking and good shearing resistance of NPAM-based gels showed the potential application for indepth water control in mature reservoirs [25, 26]. We notice that the investigations of NPAM-based gel were concentrated in the crosslinking of

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experimental study and application of gels formed by nonionic

Experimental study and application of gels formed by nonionic

Abstract A phenolic resin cross-linked nonionic polyacrylamide (NPAM) gel used for in-depth profile control was systematically analyzed. Long gelation time and strong gel strength of the gel system was obtained by adjusting NPAM or cross-linker concentration.

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evaluation of high molecular weight nonionic polyacrylamide

Evaluation of High Molecular Weight Nonionic Polyacrylamide

The nonionic polyacrylamide (NPAM) was purchased from Guangzhou Shuirun Chemical Technology Co., Ltd. (Guangzhou, China), in which the molecular weight is 12 million Daltons (as provided by the

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a novel branched polymer gel system with delayed gelation

A Novel Branched Polymer Gel System with Delayed Gelation

The thermal gelation behavior of nonionic polyacrylamide (NPAM) and PEI was investigated, and sodium citrate (NaCit) was selected as a new retarder to prolong the gelation time. The gelation performance of NPAM/PEI gel system can be adjusted by the variation of NPAM or PEI concentration, and a quadratic model was developed by statistical

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flocculation and dewatering of oil sands tailings with a

Flocculation and dewatering of oil sands tailings with a

The results showed that compared to non-ionic polyacrylamide (NPAM) treated slurries, the synergistic effects of PCE and NPAM increased the initial sedimentation rate (ISR) by up to 3.4 times while decreasing the yield stress by up to 8 times and the thixotropic loop area by 10.5 times.

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experimental study and application of gels formed by nonionic

Experimental study and application of gels formed by nonionic

@article{Zhao2015ExperimentalSA, title={Experimental study and application of gels formed by nonionic polyacrylamide and phenolic resin for in-depth profile control}, author={Guang Zhao and Caili Dai and Ang Chen and Zhihu Yan and Mingwei Zhao}, journal={Journal of Petroleum Science and Engineering}, year={2015}, volume={135}, pages={552-560

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microscopic and physicochemical studies of polymer-modified

Microscopic and physicochemical studies of polymer-modified

This study aims at elucidating the fundamental mechanisms on the effects of sodium chloride (NaCl) and four polymers (xanthan gum, chitosan, polyacrylic acid and polyacrylamide) with kaolinite.

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adsorption of different ionic types of polyacrylamide on

Adsorption of Different Ionic Types of Polyacrylamide on

Specifically, it can be divided into non-ionic polyacrylamide (NPAM), anionic polyacrylamide (APAM), and cationic polyacrylamide (CPAM). C 3 H 7 ON, C 3 H 6 O 2 , and C 5 H 9 O 2 N + are the basic structural units of these PAM, resulting in different adsorption polarities [ 12 , 13 ].

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