Nonionic Polymer for Drag Reducer in Uruguay

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Jun 01, 2014 · The Alkyl Polyglucoside (APG) is a nonionic surfactant with no toxicity and with high biodegradability, its drag-reduction behavior in a circular pipe flow is measured, and the rheological characteristics are investigated with a rheometer with a cone-plate flow cell.

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Feb 23, 2022 · The fluids had an annular configuration. The injection of polymer soln. produced drag-redns. of ∼48% with concns. of only ppm in the liq. The effectiveness of the drag-reducing polymer is sensitive to the method of injection and the concn. of …

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[6] Mohsenipour A. A., Pal R., The role of surfactants in mechanical degradation of drag-reducing polymers. Industrial engineering chemical research, Vol.52 (2013)No.3, p. [7] Mohsenipour A. A., Pal R., Synergistic effects of cationic surfactant and nonionic polymer additives on drag reduction.

Mar 19, 2018 · Polymers Reduce Drag More than Expected. Department of Civil, Environmental, and Geomatic Engineering, ETH Zurich, Stefano Franscini Platz 5, 8093 Zurich, Switzerland. Adding polymer to a liquid was thought to reduce drag only up to a point, but new experiments have found exceptions to the usual limit. Adding polymer to a fluid is known to reduce drag, but …

Apr 01, 2018 · The aim of this work is to investigate the intensification of drag reduction effect caused by the mixtures of cationic surfactant and nonionic polymer solutions, and to investigate the influence of temperature on drag reduction for polymer-surfactant solutions. 2. Measurements and materials2.1. Test facility

The molecular weight of the drag reducing polymers shouldbehigherthan100,beeffective[23].There isunanieases in the polymer molecular weight, a finding that wasmadeby[6].Thisfindinghasbeenvalidatedbyother studies using oil …

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polymer drag reducer in it (Motier, 2002). However, mechanical degradation of polymer chains in high shear rate regions, such as pu mps, is frequently observed, which lowers the ... Some nonionic surfactants also show the drag-reducing effects, rendering the use of counter ions dispensable. A number of authors have pointed out that

The polymeric ude a hydrocarbon external phase, droplets of water-soluble polymer dissolved in an aqueous internal phase, and at least one surfactant of a kind and amount effective to form a stable oemulsion of the water-soluble polymer droplets in the hydrocarbon external phase.

Jan 01, 2015 · The drag-reducing nonionic surfactant would be more desired because the environment damage of the nonionic surfactant with nontoxic and biodegradable properties is typically much smaller than that of the cationic surfactant. There are some studies on the drag reduction of n Zakin’s pioneering works , .

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Magnafloc 1011 (hydrolysed copolymer of polyacrylamide and sodium acrylate, HPAM; mol. wt. = 10 × 10⁶ g/mol) was used as drag reducing agent in …

The drag-reducing polymers studied were nonionic polyethylene oxide (referred to as PEO) and anionic copolymer of acrylamide and sodium acrylate (referred to as CPAM). The drag-reducing surfactants studied were nonionic ethoxylated alcohol - …

Jan 01,ease in pumpability of a fluid caused by the small amount of additives. Practically, adding a small concentration of the drag reducing polymers (DRPs) to the carrier fluid reduces eases the capacity of pipeline without changing the pipelines flow conditions [].This phenomenon of the DRPs has been applied in the …

Nov 10, 20udes% by weigudes a polymer, a first surfactant, and a first solvent;% by weight of a second surfactant with an HLB greater than 8; and 5-30% by weight of a second solvent. In a preferred eudes a terpene. In another preferred embodiment, the polymer is a …

Qº is the flow rate of the fluid containing the drag reducer . 5. Drag Reducing Mechanism . A drag reducer does not work in laminar flow regimes. This is because drag reduction . occurs by an interaction of the polymer molecules of the drag reducer with the turbulence formation of the flowing fluid or hydrocarbon. In a hydrocarbon stream,

Mar 24, 2005 · The dynamics of the falling droplet through a nozzle for dilute nonionic surfactant (oleyl-dimethylamine oxide, ODMAO) aqueous solutions with viscoelastic and drag-reducing properties were ...

Oct 25, 2021 · Lai et al. synthesized a kind of anionic polymer as drag rude acrylamide (AM), acrylic acid (AA), 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and a water-insoluble non-ionic monomer N-hexadecyl acrylamide. They studied the properties of relatively high concentration polymer solutions (0.1% ~ 0.3%), and declared that …

It is claimed: 1. A method of preparing and using a drag-reducing composition, the method comprising the steps of: preparing a polymer emulsion utilizing a first surfactant and a first solvent; preparing a drag-reducing additive by mixing% by weight of the polymer emulsion with% by weight of a second surfactant with an HLB greater than 8 and 5-30% by weight …

A series of drag-reducing surfactants and polymers were screened for the synergistic studies. The following two widely used polymeric drag reducing agents (DRA) were chosen: ... mixed with non- ionic polymer..... 30 Figure 3-7: Necklace model ...

2.3. Selected Drag Reducer. Polyacrylamide polymer drag reducers are commonly used in hydraulic fracturing and can be generally categorised as cationic, anionic, or nonionic, according to their electrical characteristics after hydrolysis. Cationic drag reducers are relatively expensive. Nonionic drag reducers require an amount approximately

Dec 06, 2021 · Cationic drag reducers are relatively expensive. Nonionic drag reducers require an amount approximately one order of magnitude greater to be added than cationic and anionic reducers for the same drag reduction effect. Thus, anionic drag reducers are usually used for fracturing . The drag reducer used in this study is an emulsion form and water ...

Frictional pressure drop, or drag, is a result of the resistance encountered by flowing fluid coming into contact with the pipe wall. There are generally two types of flow – laminar and turbulent. The friction pressures observed in laminar flow cannot be changed unless the physical properties of the fluid are changed. The current class of DRA does not change fluid properties and hence is ...

80 % drag reduction with only a few parts per million of polymer. Ionic and non-ionic surfactants can also offer similar drag reduction as polymer solutions but at a high concentration of few percent. Microbubbles are perhaps the cheapest and non-polluted drag reducer. However, the control of the bubble size and the angle of ejection can

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