petroleum partially hydrolyzed polyacrylamide petroleum

experimental and mechanism study: partially hydrolyzed

Experimental and mechanism study: Partially hydrolyzed

Partially hydrolyzed Polyacrylamide (PHPAM) crosslinked by Cr<sup>+3</sup> 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. Although various kinds of chemical age …

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biodegradation of partially hydrolyzed polyacrylamide by

Biodegradation of partially hydrolyzed polyacrylamide by

Partially hydrolyzed polyacrylamide (HPAM) in production water after polymer flooding in oil filed causes environmental problems, such as increases the difficulty in oil-water separation, degrades naturally to produce toxic acrylamide and endanger local ecosystem. Biodegradation of HPAM may be an efficient way to solve these problems.

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shear degradation of partially hydrolyzed polyacrylamide

Shear Degradation of Partially Hydrolyzed Polyacrylamide

Partially hydrolyzed polyacrylamide solutions are highly shear degradable and may lose much of their effectiveness in reducing water mobility when sheared by flow through porous rock in the vicinity of an injection well.

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biodegradation of partially hydrolyzed polyacrylamide hpam

Biodegradation of partially hydrolyzed polyacrylamide hpam

Biodegradation of partially hydrolyzed polyacrylamide hpam using bacteria isolated from omani oil fields. In Society of Petroleum Engineers - SPE EOR Conference at Oil and Gas West Asia 2018 (Vol. 2018-March). Society of Petroleum Engineers.

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rheology of diluted and semi-diluted partially hydrolyzed

Rheology of diluted and semi-diluted partially hydrolyzed

In the Chinese petroleum industry, the use of the flooding agent HPAM is at the industrial application and dissemination stage, especially in enhanced oil recovery of the late exploitation stage , . Usually, HPAM is prepared by hydrolyzing polyacrylamide or copolymerization of acrylamide and acrylate.

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prediction of viscosity for partially hydrolyzed

Prediction of Viscosity for Partially Hydrolyzed

Partially hydrolyzed polyacrylamide (HPAM) polymers are currently the most widely used mobility control polymers for secondary and tertiary oil recovery. Small quantities of HPAM can increase the viscosity of water by two or more orders of magnitude in the absence of added electrolytes.

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modeling of partially hydrolyzed polyacrylamide-hexamine

Modeling of Partially Hydrolyzed Polyacrylamide-Hexamine

The cross-linked polymer gel systems are being used increasingly to redirect or modify reservoir fluid movement in the vicinity of injection wells for the purpose of permeability/profile modification job in the oil field due to their high temperature stability and capability to provide rigid gel having high mechanical strength. In this study, a partially hydrolyzed polyacrylamide-hexamine

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us3760879a - petroleum recovery process utilizing

US3760879A - Petroleum recovery process utilizing

Viscosity and screen factor of modified polyacrylamides for use in supplemented recovery of petroleum are increased by treatment with formaldehyde and either simultaneously or sequentially with sulfite or bisulfite to yield a high molecular weight partially hydrolyzed sulfomethylated polyacrylamide which is hydrophilic and exhibits high efficiency in petroleum recovery.

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biodegradation of partially hydrolyzed polyacrylamide hpam

Biodegradation of partially hydrolyzed polyacrylamide hpam

Biodegradation of partially hydrolyzed polyacrylamide hpam using bacteria isolated from omani oil fields. In Society of Petroleum Engineers - SPE EOR Conference at Oil and Gas West Asia 2018 (Vol. 2018-March). Society of Petroleum Engineers.

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petroleum exploitation auxiliary drilling chemical

Petroleum Exploitation Auxiliary Drilling Chemical

Partially hydrolyzed polyacrylamide is often used in this field. Polymer flooding is to increase the viscosity of the injected water and improve the oil-water mobility ratio by adding a certain amount of polymer polyacrylamide to the injected water. Due to adsorption and trapping of the oil layer on polyacrylamide, it reduces the permeability

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petroleum recovery process utilizing formaldehyde-sulfite

Petroleum recovery process utilizing formaldehyde-sulfite

About 61.1 percent residual oil was produced when the polymer in the thickened water was sulfomethylated hydrolyzed polyacrylamide. However, use of the conventional unhydrolyzed polyacrylamide recovered only 27.7 percent residual oil.

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drag reduction behavior of hydrolyzed  - petroleum science

Drag reduction behavior of hydrolyzed - Petroleum Science

Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates. Five different concentrations of HPAM as well as mixtures of polyacrylamide/xanthan gum were prepared to investigate the possibility of improving shear stability of HPAM. Drag reduction (DR) measurements

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fluids | free full-text | investigation of non-linear

Fluids | Free Full-Text | Investigation of Non-Linear

Partially hydrolyzed polyacrylamide of different molecular weights was proposed as a replacement for hydrolized polyacrylamide. The experiment was conducted on a Fann rotary viscometer. The article presents experimentally obtained data of indicators such as plastic viscosity, yield point, nonlinearity index and consistency coefficient.

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polyacrylamide degradation and its implications in

Polyacrylamide degradation and its implications in

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

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empirical correlations for viscosity of partially hydrolyzed

Empirical correlations for viscosity of partially hydrolyzed

Empirical correlations for viscosity of partially hydrolyzed Polyacrylamide Empirical correlations for viscosity of partially hydrolyzed Polyacrylamide Gao, Changhong 2013-06-07 00:00:00 J Petrol Explor Prod Technol (2014) 4:209–213 DOI 10.1007/s13202-013-0064-z SH ORT C OM M U N I CATION - P RO DU CTIO N E NG IN EERING Empirical correlations for viscosity of partially hydrolyzed

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degradation of polyacrylamide: a review | scientific.net

Degradation of Polyacrylamide: A Review | Scientific.Net

[21] Zhan Ya-li, Du Na, Guo Shao-hui, Oxidative degradation of partially hydrolyzed polyacrylamide in aqueous solution, Journal of the University of Petroleum China. 29(2005)108-111. [22] D. K. Ramsden, K. McKay, The degradation of polyacrylamide in aqueous solution induced by chemically generated hydroxyl radicals: PartII-Autoxidation of Fe2

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hydrolysis and thermal stability of partially hydrolyzed

Hydrolysis and thermal stability of partially hydrolyzed

Partially hydrolyzed polyacrylamide (HPAM) is the water-soluble polymer most often used in flooding applications in the petroleum industry. However, in aqueous solutions at high temperatures, HPAM undergoes hydrolysis of the lateral amide groups, and the presence of salts in the solution can lead to precipitation of this polymer.

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rheology of diluted and semi-diluted partially hydrolyzed

Rheology of diluted and semi-diluted partially hydrolyzed

In the Chinese petroleum industry, the use of the flooding agent HPAM is at the industrial application and dissemination stage, especially in enhanced oil recovery of the late exploitation stage , . Usually, HPAM is prepared by hydrolyzing polyacrylamide or copolymerization of acrylamide and acrylate.

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drag reduction behavior of hydrolyzed  - petroleum science

Drag reduction behavior of hydrolyzed - Petroleum Science

Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates. Five different concentrations of HPAM as well as mixtures of polyacrylamide/xanthan gum were prepared to investigate the possibility of improving shear stability of HPAM. Drag reduction (DR) measurements

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polyacrylamide polymers derived from acrylonitrile without

Polyacrylamide polymers derived from acrylonitrile without

Hydrolyzed and neutralized acrylonitrile is polymerized in solution without isolation to produce a high molecular weight polyacrylamide useful for mobility control in secondary recovery of petroleum. The polyacrylamide optionally may be hydrolyzed, methylolated, and sulfomethylated to further enhance its water-thickening properties.

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mobility control and enhanced oil recovery using partially

Mobility Control and Enhanced Oil Recovery using Partially

heavy oil recov ery’, Journal of Petroleum Science and Engineering, Vol. 67, Nos. 3–4, pp.155–158. Wang, J., (NPs) and nanoclay with partially hydrolyzed polyacrylamide (HPAM) polymer

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fluids | free full-text | investigation of non-linear

Fluids | Free Full-Text | Investigation of Non-Linear

Partially hydrolyzed polyacrylamide of different molecular weights was proposed as a replacement for hydrolized polyacrylamide. The experiment was conducted on a Fann rotary viscometer. The article presents experimentally obtained data of indicators such as plastic viscosity, yield point, nonlinearity index and consistency coefficient.

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(pdf) rheological investigations of partially hydrolyzed

(PDF) RHEOLOGICAL INVESTIGATIONS OF PARTIALLY HYDROLYZED

The partially hydrolyzed polyacrylamide-hexamine-hydroquinone gel solution behaves like a non-Newtonian shear thinning fluid. ACKNOWLEDGEMENTS Authors are gratefully acknowledged for the financial assistance provided by Council of Scientific and Industrial Research (CSIR), Govt. of India and Department of Petroleum Engineering, Indian School of

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degradation of polyacrylamide: a review | scientific.net

Degradation of Polyacrylamide: A Review | Scientific.Net

[21] Zhan Ya-li, Du Na, Guo Shao-hui, Oxidative degradation of partially hydrolyzed polyacrylamide in aqueous solution, Journal of the University of Petroleum China. 29(2005)108-111. [22] D. K. Ramsden, K. McKay, The degradation of polyacrylamide in aqueous solution induced by chemically generated hydroxyl radicals: PartII-Autoxidation of Fe2

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