Use of Multifunctional Reagents in the Oil and Gas Complex

Lykov, O. P.; Nizova, S. A.; Tolstykh, L. I.; Магадова, Л. А.; Шевкунов, С Н

doi:10.1007/s10553-005-0029-0

Cited by 2 publications

(1 citation statement)

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“…The longer the PEG chain, the greater the bonds formed. These bonds will require greater energy to break them down [21]. The relation between the cloud points and the HLB values can be better understood from Fig.…”

Section: Solubility Of the Prepared Surfactantsmentioning

confidence: 98%

Some Sugar Fatty Ester Ethoxylates as Demulsifiers for Petroleum Sludge

Abdul-Raheim

Abdel-Raouf

Maysour

et al. 2012

J Surfact & Detergents

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Several ethoxylated sugar fatty ester surfactants were prepared by the reaction of glucose with three fatty acids, namely, adipic, stearic and palmitic acids to produce GA, GS and GP esters. These glucose esters were then ethoxylated by four different molecular weight polyethylene glycols, namely, 400, 1,000, 2,000 and 4,000 mol L -1 . The prepared ethoxylated esters (12 compounds) were characterized by IR and 1 H-NMR spectroscopy. The surface activity of the prepared compounds was thoroughly studied by measuring the surface tension of different solutions of these compounds at three temperatures, namely 298, 308 and 318 K. From the surface tensionconcentration plots of these compounds some surface properties, such as CMC (critical micelle concentration), C max (maximum surface excess concentration) and A min (area occupied per molecule) were calculated. The surface properties of the prepared surfactants were correlated to their chemical structure. It was found that the CMC decreases when increasing the molecular weight of polyethylene glycols, whereas A min increases. Furthermore, the demulsification test was carried out and the results of demulsification efficiency were correlated to the chemical composition of the investigated compounds. Some factors that affect the demulsification efficiency were also considered. The oil phase recovered from the treated sludge was characterized and mixed with fresh crude to improve its API.

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Section: Solubility Of the Prepared Surfactantsmentioning

confidence: 98%

Some Sugar Fatty Ester Ethoxylates as Demulsifiers for Petroleum Sludge

Abdul-Raheim

Abdel-Raouf

Maysour

et al. 2012

J Surfact & Detergents

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Применение Плавиковой Кислоты При Обработке Пласта

Самира Аббасова, Анар Искендеров

2024

PAHTEI

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Данная статья описывает перспективу применения плавиковой кислоты в обработке призабойной зоны скважины, как более эффективный метод для повышения проницаемости. Как известно кислотная обработка скважин предназначена для очистки забоя, призабойной зоны, насосно-компрессорных труб от солей, асфальто-смолистых парафинистых отложений и продуктов коррозии, которые образуются за время эксплуатации скважины. Целью кислотных обработок является увеличение притока жидкости к скважине. Под влиянием кислоты в породах образуются пустоты, полости в скелете породы, в результате чего повышается проницаемость пород, а следовательно, добыча нефти (газа) и приемистость нагнетательных скважин. В большинстве случаев используют соляную кислоту. Описанный в статье метод использования плавиковой кислоты, является альтернативным методом для обработки в терригенных коллекторах. Ключевые слова: кислотная обработка, плавиковая кислота, соляная кислота, грязевая кислота, призабойная зона, проницаемость.

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Use of Multifunctional Reagents in the Oil and Gas Complex

Cited by 2 publications

References 0 publications

Some Sugar Fatty Ester Ethoxylates as Demulsifiers for Petroleum Sludge

Some Sugar Fatty Ester Ethoxylates as Demulsifiers for Petroleum Sludge

Применение Плавиковой Кислоты При Обработке Пласта

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