Microbial Enhanced Oil Recovery

Yernazarova, Aliya; Kayirmanova, Gulzhan; Baubekova, Almagul; Жубанова, А. А.

doi:10.5772/64805

Cited by 18 publications

(11 citation statements)

References 48 publications

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“…Chemical–microbial EOR techniques are a subset of EOR methods that utilize both chemicals and microbes to enhance oil recovery. These techniques are highly effective due to their ability to reduce interfacial tension, increase sweep efficiency, and alter wettability, which are key factors in improving oil recovery [ 79 , 80 , 81 ]. However, the implementation of these techniques often involves higher costs.…”

Section: Eor Techniquesmentioning

confidence: 99%

New Trends in Biosurfactants: From Renewable Origin to Green Enhanced Oil Recovery Applications

Shaikhah,

Loise,

Angelico

et al. 2024

Molecules

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Enhanced oil recovery (EOR) processes are technologies used in the oil and gas industry to maximize the extraction of residual oil from reservoirs after primary and secondary recovery methods have been carried out. The injection into the reservoir of surface-active substances capable of reducing the surface tension between oil and the rock surface should favor its extraction with significant economic repercussions. However, the most commonly used surfactants in EOR are derived from petroleum, and their use can have negative environmental impacts, such as toxicity and persistence in the environment. Biosurfactants on the other hand, are derived from renewable resources and are biodegradable, making them potentially more sustainable and environmentally friendly. The present review intends to offer an updated overview of the most significant results available in scientific literature on the potential application of biosurfactants in the context of EOR processes. Aspects such as production strategies, techniques for characterizing the mechanisms of action and the pros and cons of the application of biosurfactants as a principal method for EOR will be illustrated and discussed in detail. Optimized concepts such as the HLD in biosurfactant choice and design for EOR are also discussed. The scientific findings that are illustrated and reviewed in this paper show why general emphasis needs to be placed on the development and adoption of biosurfactants in EOR as a substantial contribution to a more sustainable and environmentally friendly oil and gas industry.

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Section: Eor Techniquesmentioning

confidence: 99%

New Trends in Biosurfactants: From Renewable Origin to Green Enhanced Oil Recovery Applications

Shaikhah,

Loise,

Angelico

et al. 2024

Molecules

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“…Микробиологический метод увеличения нефтеотдачи (Microbial enhanced oil recovery -MEOR)это метод использования микроорганизмов для увеличения нефтеотдачи пластов после выработки средних и лёгких нефтей традиционными методами добычи [1,2]. В настоящее время, в связи с истощением легкоизвлекаемых запасов нефти, нефтедобывающей отрасли придётся уделять большее внимание освоению и вводу в промышленную разработку трудноизвлекаемых нефтей, в том числе, выработанным месторождениям с тяжёлой остаточной нефтью.…”

Section: Fundingunclassified

“…Основные механизмы действия микробных метаболитов для MEOR рассмотрены во многих работах, в частности, микробные биосурфактанты эмульгируют нефть, снижают вязкость нефти и межфазное натяжение на границе раздела нефть-вода; кислоты также обусловливают снижение вязкости нефти и растворение карбонатных пород, увеличивая пористость и проницаемость нефтепласта; газы образуют дополнительное давление в пласте, что в итоге приводит к подвижности нефти и продвижению на поверхность [1,2,7,8].…”

Section: Fundingunclassified

“…Microbial enhanced oil recovery (MEOR) is the method of using microorganisms to improve recovery of oil from the reservoirs after secondary oil recovery [1,2]. Nowadays, the necessity of improving and/or advancing the current enhanced oil recovery (EOR) processes to make them more efficient has attracted the attention of researchers and oil field operators.…”

mentioning

confidence: 99%

“…The main mechanisms of metabolites of microorganisms are reviewed in many works [1,2,7], including that microbial biosurfactants emulsify oil, reduce oil viscosity and interfacial tension at the oil-water interface; acids could dissolve the rocks and increase the porosity and permeability of the reservoir; polymers and gases, lead to a decrease in the viscosity of oil and dissolving carbonate rocks, increasing the permeability [8].…”

mentioning

confidence: 99%

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Идентификация Аборигенных Культур Микроорганизмов Рода Bacillus И Их Потенциальное Применение Для Увеличения Нефтеотдачи Пластов

YERNAZAROVA,

KAIYRMANOVA,

SHAIMERDENOVA

et al. 2024

Микробиология Және Вирусология

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The present study was conducted to isolate active Bacillus cultures from developed oil reservoirs as potential objects for the development of microbial enhanced oil recovery (MEOR) methods. Oil formation water from two oil fields "Zhetybai" and "Kulsary" located in Western Kazakhstan were used as study materials. 8 cultures of Bacillus genus were isolated and identified on the basis of phylogenetic analysis of 16S rRNA gene. The formation of acetic acid and biosurfactants were studied as target properties valuable for MEOR. It was revealed that the investigated microorganisms are able to synthesize acetic acid as well as fatty acids. Emulsifying activity was determined as an indicator of the presence of biosurfactants. The maximum emulsification index was observed in strains of Bacillus sp. ZhM-3 and Bacillus sp. KM-2 for crude oil - 80% and 65%, for hexane - 69% and 50%, respectively. As a result of this work it was shown that the cultures of Bacillus sp. ZhM-3 and Bacillus sp. KM-2 are active producers of organic acids (acetic and butyric acids) and biosurfactants capable of emulsifying crude oil, which makes them potentially effective for application in biotechnological processes aimed at enhancing oil recovery from depleted fields. Настоящее исследование проведено с целью выделения из разработанных нефтепластов активных культур рода Bacillus, как потенциальных объектов для разработки микробиологических методов увеличения нефтеотдачи (Microbial enhanced oil recovery – MEOR). В качестве материалов исследования использована нефтепластовая вода двух нефтяных месторождений "Жетыбай" и "Кульсары", расположенных в Западном Казахстане. Выделены и идентифицированы на основе филогенетического анализа гена 16S рРНК 8 культур рода Bacillus. В качестве целевых ценных свойств для MEOR проводили изучение продукции органических кислот и биосурфактантов. Выявлено, что исследуемые микроорганизмы способны синтезировать уксусную и масляную кислоты. В качестве показателя наличия биосурфактантов определяли индекс эмульгирования сырой нефти и гексана. Максимальный индекс эмульгирования отмечен у культур Bacillus sp. ZhM-3 и Bacillus sp. KM-2 для сырой нефти – 80% и 65%, для гексана - 69% и 50%, соответственно. В результате проведенной работы показано, что культуры Bacillus sp. ZhM-3 и Bacillus sp. KM-2 являются активными продуцентами органических кислот (уксусной и масляной) и биосурфактантов, способных к эмульгированию сырой нефти, что делает их потенциально эффективными для применения в биотехнологических процессах, направленных на повышение нефтеотдачи выработанных месторождений.

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Comparison of mono‐rhamnolipids and di‐rhamnolipids on microbial enhanced oil recovery (MEOR) applications

Rocha

Castilho

Castro

et al. 2020

Biotechnology Progress

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Rhamnolipids (RMLs) have more effectiveness for specific uses according to their homologue proportions. Thus, the novelty of this work was to compare mono‐RMLs and di‐RMLs physicochemical properties on microbial enhanced oil recovery (MEOR) applications. For this, RML produced by three strains of Pseudomonas aeruginosa containing different homologues proportion were used: a mainly mono‐RMLs producer (mono‐RMLs); a mainly di‐RMLs producer (di‐RMLs), and the other one that produces relatively balanced amounts of mono‐RML and di‐RML homologues (mono/di‐RML). For mono‐RML, the most abundant molecules were Rha‐C10C10 (m/z 503.3), for di‐RML were RhaRha‐C10C10 (m/z 649.4) and for Mono/di‐RML were Rha‐C10C10 (m/z 503.3) and RhaRha‐C10C10 (m/z 649.4). All RMLs types presented robustness under high temperature and variation of salinity and pH, and high ability for oil displacement, foam stability, wettability reversal and were classified as safe for environment according to the European Union Directive No. 67/548/EEC. For all these properties, it was observed a highlight for mono‐RML. Mono‐RML presented the lowest surface tension (26.40 mN/m), interfacial tension (1.14 mN/m), and critical micellar concentration (CMC 27.04 mg/L), the highest emulsification index (EI24 100%) and the best wettability reversal (100% with 25 ppm). In addition, mono‐RML showed the best acute toxicity value (454 mg/L), making its application potential even more attractive. Based on the results, it was concluded that all RMLs homologues studied have potential for MEOR applications. However, results showed that mono‐RML stood out and have the best mechanism of oil incorporation in micelles due their most effective surface‐active physicochemical features.

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Microbial Enhanced Oil Recovery

Cited by 18 publications

References 48 publications

New Trends in Biosurfactants: From Renewable Origin to Green Enhanced Oil Recovery Applications

New Trends in Biosurfactants: From Renewable Origin to Green Enhanced Oil Recovery Applications

Идентификация Аборигенных Культур Микроорганизмов Рода Bacillus И Их Потенциальное Применение Для Увеличения Нефтеотдачи Пластов

Comparison of mono‐rhamnolipids and di‐rhamnolipids on microbial enhanced oil recovery (MEOR) applications

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