phpa nonionic polyacrylamide in the Philippines
phpa nonionic polyacrylamide in the Philippines
phpa nonionic polyacrylamide in the Philippines
phpa nonionic polyacrylamide in the Philippines
phpa nonionic polyacrylamide in the Philippines
polyacrylamide degradation and its implications in environmental

Polyacrylamide degradation and its implications in environmental

High molecular weight (10 6 ¨C3 ¡Á 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction...

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flocculating fine cuttings particles suspended within partially

Flocculating fine cuttings particles suspended within partially

Aqueous solutions of high molecular weight partially hydrolysed polyacrylamide (PHPA) are used in mineral exploration drilling to increase fluid viscosity and thereby help maintain the suspension of fine cuttings being brought to the surface.

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recent advances of modified polyacrylamide in drilling technology

Recent advances of modified polyacrylamide in drilling technology

Consequently, polymer modification is required in drilling nowadays. The modified polyacrylamide reviewed in this paper is a polymer aqueous solution with high molecular weight, which has a similar density as water but a much higher viscosity. Further, it is a water-soluble, easily mixed dry granular, and non-gelling agent.

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water-based polymer drilling fluid and method of use

Water-Based Polymer Drilling Fluid and Method of Use

Oct 11, 2006 A water-based drilling fluid comprises a polymer which is a non-ionic polymer or an anionic polymer. The polymer can be a polyacrylamide. The fluid is used for drilling subterranean formations containing heavy crude oil and bitumen-rich oil sands, and may comprise additional fluid components.

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mobility control and enhanced oil recovery using partially hydrolysed

Mobility control and enhanced oil recovery using partially hydrolysed

Polymers are often used as mobility controller for enhanced oil recovery. The present paper deals with the application of partially hydrolysed polyacrylamide (PHPA) polymer in enhanced oil recovery after the conventional water flooding. Experimental results show that viscosity of PHPA solution increases significantly on addition of small quantity of polymer, which in turn decreases the

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experimental evaluation of partially hydrolyzed polyacrylamide and

Experimental evaluation of partially hydrolyzed polyacrylamide and

Partially hydrolyzed polyacrylamide (PHPA) is the most frequently used polymer in this respect, owing to its low cost, viscosifying nature, and well-known physiochemical properties (Urbissinova et al. 2010). The molecule of this polymer is a flexible chain which remains in coil-like structure in the absence of a shearing effect.

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study on rheology and microstructure of phenolic resin cross-linked

Study on rheology and microstructure of phenolic resin cross-linked

Nonionic polyacrylamide (NPAM) and phenolic resin cross-linker were used to prepare the phenolic resin gel. The hydrolysis degree and average molecular weight of NPAM were 3.31% and 9,650,000 g/mol, respectively. The cross-linker was prepared by using phenol, formaldehyde and urotropine, and it was purchased from Yuguang Co. Ltd., China.

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the thermal gelation behavior and performance evaluation of high

The Thermal Gelation Behavior and Performance Evaluation of High

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 varying NPAM or PEI concentration, and a quadratic model is developed by statistical analysis, which predicts the gelation time of NPAM/PEI gel system.

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synthesis of polyacrylamide copolymers cross-linked by

Synthesis of polyacrylamide copolymers cross-linked by

Materials. To carry out this work, the following polymers were used: (I) three partially hydrolyzed polyacrylamides (PHPAs), under the trade names Flopaam ? 3130S, Flopaam ? 3330S, and Flopaam ? 3530S, with M w values of 2 ¡Á 10 6, 8 ¡Á 10 6, and 10 ¡Á 10 6 Da, which contained around 69%, 72%, and 71% of acrylamide, respectively, with hydrolysis degree between 25 and 30%; (II) a

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experimental investigation of the effects of partially hydrolyzed

Experimental Investigation of the Effects of Partially Hydrolyzed

Polyacrylamide polymers with different MW of 6000000, 10000000, 15000000 and 27000000 were used accordingly. Their results showed that polymer addition, even with the minimum

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