Factors Affecting Microbial Enhanced Oil Recovery (MEOR)

Rivera, Miguel; Vasconcellos, J.M.; Morales, Marcia Eugenia Ojeda

doi:10.1007/978-3-319-89812-4_33

Cited by 1 publication

(2 citation statements)

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“…A variety of microbes produces six chief metabolites (biosurfactants, biopolymers, biogas, biomass, bioacids, and biosolvents) that perform a dynamic role in the oil recovery process. These mechanisms include the reduction of oil viscosity, wettability modification, microbial plugging, reducing IFT, long hydrocarbon chain breakdown, and release of acids [14,17], as shown in Table 1. Azarhava et al [61] reported that when Bacillus licheniformis LMG 7559 was injected into the oil-saturated heterogeneous porous medium, it secreted extracellular Poly gamma-(glutamic acid), which enabled oil recovery of up to 31.45% using biopolymer flooding.…”

Section: Microbial Metabolic Products Involvedmentioning

confidence: 99%

“…Finally, several toxicity tests of the microbes to be handled in the area should be undertaken to ensure that they are safe to use and pose no risks for people or the environment. In addition to the dynamics or factors mentioned below, other dynamics affecting MEOR that should be studied carefully are the additional oil saturation of the remaining oil, the evaluation and the composition of the fluid, core laboratory tests, and the economic aspects of the procedure [4,12,14,53,64,73,134].…”

Section: Meor Dynamicsmentioning

confidence: 99%

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Exploiting Microbes in the Petroleum Field: Analyzing the Credibility of Microbial Enhanced Oil Recovery (MEOR)

et al. 2021

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Crude oil is a major energy source that is exploited globally to achieve economic growth. To meet the growing demands for oil, in an environment of stringent environmental regulations and economic and technical pressure, industries have been required to develop novel oil salvaging techniques. The remaining ~70% of the world’s conventional oil (one-third of the available total petroleum) is trapped in depleted and marginal reservoirs, and could thus be potentially recovered and used. The only means of extracting this oil is via microbial enhanced oil recovery (MEOR). This tertiary oil recovery method employs indigenous microorganisms and their metabolic products to enhance oil mobilization. Although a significant amount of research has been undertaken on MEOR, the absence of convincing evidence has contributed to the petroleum industry’s low interest, as evidenced by the issuance of 400+ patents on MEOR that have not been accepted by this sector. The majority of the world’s MEOR field trials are briefly described in this review. However, the presented research fails to provide valid verification that the microbial system has the potential to address the identified constraints. Rather than promising certainty, MEOR will persist as an unverified concept unless further research and investigations are carried out.

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Section: Microbial Metabolic Products Involvedmentioning

confidence: 99%