Influence of polymer bases on the synergistic effects obtained from mixtures of additives in the petroleum industry: Performance and residue formation

Spinelli, Luciana S.; Aquino, Aline S.; Pires, Renata V.; Barboza, Elaine M.; Louvisse, Ana Maria Travalloni; Lucas, Elizabete F.

doi:10.1016/j.petrol.2006.11.009

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…Полимерная основа ответственна за положительный синергетический эффект, возникающий в присутствии флокулянта и/или ингибитора отложений, на эффективность деэмульгатора, а также за отрицательный синергетический эффект, возникающий из-за присутствия деэмульгатора и смесь деэмульгатора и флокулянта на эффективность ингибитора солеотложений. Кроме того, он также ответственен за более низкое образование остатков, наблюдаемое в смеси флокулянта и ингибитора отложений, что является положительным синергетическим эффектом [80][81].…”

Section: нефтехимияunclassified

Features of the Application of Macromolecular Compounds in the Oil Industry

KONDAUROV,

MELNIKOV,

AGIBAYEVA

2023

NiG

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The paper discusses the features of the use of polymer materials in the oil industry. Research on polymer synthesis and their corresponding characterization is aimed at developing fundamentally new molecules with controlled structure for various applications with the following goals: increasing operational efficiency; reduce costs; study the mechanisms of action of molecules that can help in the development of new technologies in the near future.

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Section: нефтехимияunclassified

Features of the Application of Macromolecular Compounds in the Oil Industry

KONDAUROV,

MELNIKOV,

AGIBAYEVA

2023

NiG

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“…These results indicate that increasing the DiPHAM concentration can enhance the solution's rheological properties under high-salinity and high-temperature conditions. Moreover, DiPHAM can be applied as a fracturing fluid thickener to improve oil and gas recovery under the high-salinity conditions of at least 5000 mg/L Ca 2+ or 3000 mg/L Mg 2+ [49,50]. …”

Section: Effect Of Metal Ions On Rheological Propertiesmentioning

confidence: 99%

Novel Hydrophobic Associating Polymer with Good Salt Tolerance

et al. 2018

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Abstract:A hydrophobic associating polymer named DiPHAM (acrylamide/sodium acrylamide-2-methylpropanesulfonic/sodium acrylate/N,N-di-n-dodecylacrylamide) with good salt tolerance was synthesized via photo-initiation polymerization. The critical association concentration (CAC) of DiPHAM was determined by viscosity changes to be 490 mg/L with different DiPHAM concentrations and particle sizes varied under such dynamic conditions. The influences of aqueous metal ions with different charges on its aqueous solution were investigated by measuring apparent viscosity, viscoelasticity, thixotropy, rheology, and particle size, and by SEM observation. The apparent viscosity of the DiPHAM solution was affected by metal ions to some extent, but the viscosity of the polymer can be still maintained at 55 mPa·s under 20 × 10 4 mg/L NaCl. Divalent metal ions show greater impact on DiPHAM aqueous solutions, but the polymer solutions showed resistance to the changes caused in viscosity, structure, and viscoelasticity by Ca 2+ and Mg 2+ ions. The salt tolerance of DiPHAM is due to the combination of hydrophobic association, the electrostatic shield, and double layer compression of the hydration shell. Increasing the ion concentration enhances the dehydration and further compresses the hydration shell, making the non-structural viscosity decrease, even "salting out". Measurements of rheological properties showed that DiPHAM solutions could maintain a relatively high viscosity (0.6%-71 mPa·s/0.3%-50 mPa·s) after 120 min of continuous shearing (170 s −1 ) at 140 • C. Under high-salinity (5000 mg/L Ca 2+ /3000 mg/L Mg 2+ ) conditions, the solution with 0.6 wt% DiPHAM still maintained a high viscosity (50 mPa·s/70 mPa·s) after continuously shearing for 120 min at 120 • C and 170 s −1 . The good salt tolerance of DiPHAM can lead to a variety of applications, including in fracturing fluids for enhanced oil recovery (EOR) and in sewage treatment.

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“…Small particle sizes can absorb on the oil-water interface and increase the oil-water interfacial strength and the absolute value of the zeta potential, which greatly enhances the O/W emulsion stability. [30] Effect of single component With increased LY dosage, the oil content decreased and the zeta potential increased. When the LY concentration reached 400 mg L ¡1 , the oil content and zeta potential were 123.5 mg L ¡1 and ¡20.6 mV, respectively.…”

Section: Effect Of Microorganism Flocsmentioning

confidence: 99%

Treatment of aging oily wastewater by demulsification/flocculation

Yang

Yan

et al. 2016

Journal of Environmental Science and Health, Part A

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The aging oily wastewater (AOW) from Tarim oilfield in China was treated by demulsification/flocculation. A novel sewage treatment agent (YL-7) was developed using a cationic surfactant (LY) and flocculants (polydimethyl diallyl ammonium chloride (PDMDAAC)/polyaluminum chloride (PAC)). At an YL-7 dosage of 320 mg L(-1) at 323 K for 90 min, the oil content of AOW was reduced from 728.8 mg L(-1) to 23.7 mg L(-1), and oil removal efficiency reached 96.7%. Microorganism flocs (extracted from AOW) with high negative zeta potential enhanced the stability of oil/water emulsion. LY and PDMDAAC neutralized the negative charge on the oil droplet surface. PDMDAAC and PAC mainly bridged and swept flocs during the flocculation process. YL-7 was found to be a suitable sewage treatment agent in removing oil from AOW.

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Influence of polymer bases on the synergistic effects obtained from mixtures of additives in the petroleum industry: Performance and residue formation

Cited by 11 publications

References 13 publications

Features of the Application of Macromolecular Compounds in the Oil Industry

Features of the Application of Macromolecular Compounds in the Oil Industry

Novel Hydrophobic Associating Polymer with Good Salt Tolerance

Treatment of aging oily wastewater by demulsification/flocculation

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