Distribution and occurrence of aliphatic acid anions in deep subsurface waters

Fisher, J. Berton

doi:10.1016/0016-7037(87)90297-3

Cited by 134 publications

(53 citation statements)

References 4 publications

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“…Furthermore, it is uncertain whether the reduction rate and isotope effect are changed by the reducing agents. Therefore, an experimental study of abiogenic sulfate reduction by organic acid in Organic acid such as acetic acid has been found in oil-field waters, non-petroliferous brines, marine pore waters and hot springs (Willey et al, 1975;Carothers and Khraka, 1978;Fisher, 1987;Means and Hubbard, 1987). Recent work has also suggested that the decar boxylation of organic acid could be a significant source of natural gas (Khraka et al, 1983;Palmer and Drummond, 1986).…”

Section: Introductionmentioning

confidence: 99%

The role of organic acid in the abiogenic reduction of sulfate and the sulfur isotope effect.

1990

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Abiogenic reduction of sulfate by acetic acid has been conducted at temperatures ranging from 241 to 340°C. The sulfides produced and the remaining sulfates have been chemically and isotopically quan tified. The reaction of the aqueous sulfate reduction obey first-order kinetics. The rate constants are strongly dependent on temperature. The temperature dependence of the reaction rate (min-') is given by the following rate law: log k=-10.3 x 103/T+15.1. The activation energy for the reaction of sulfate reduction is 208 kJ mol-1.

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Section: Introductionmentioning

confidence: 99%

The role of organic acid in the abiogenic reduction of sulfate and the sulfur isotope effect.

1990

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“…In diagenetic environments with temperatures below 85°C, formate, acetate, propionate, and butyrate are key intermediates in the anaerobic degradation of organic matter (22). Although their concentrations in low-temperature sediments are typically low (Ͻ15 M) due to rapid rates of microbial consumption compared to their accumulation rates (7,35), high concentrations of acetate (1,500 mg/liter) and of total carboxylic anions (4,000 mg/liter) have been reported in hightemperature sediments devoid of microbial activity (3,7,12). Therefore, restricted microbial activity in deeper hydrothermal metamorphic environments (28) allows the inflow of carboxylic acids into upper low-temperature horizons (4).…”

mentioning

confidence: 99%

Competitive Oxidation of Volatile Fatty Acids by Sulfate- and Nitrate-Reducing Bacteria from an Oil Field in Argentina

Grigoryan

Cornish

Buziak

et al. 2008

Appl Environ Microbiol

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Acetate, propionate, and butyrate, collectively referred to as volatile fatty acids (VFA), are considered among the most important electron donors for sulfate-reducing bacteria (SRB) and heterotrophic nitrate-reducing bacteria (hNRB) in oil fields. Samples obtained from a field in the Neuquén Basin, western Argentina, had significant activity of mesophilic SRB, hNRB, and nitrate-reducing, sulfide-oxidizing bacteria (NR-SOB). In microcosms, containing VFA (3 mM each) and excess sulfate, SRB first used propionate and butyrate for the production of acetate, which reached concentrations of up to 12 mM prior to being used as an electron donor for sulfate reduction. In contrast, hNRB used all three organic acids with similar kinetics, while reducing nitrate to nitrite and nitrogen. Transient inhibition of VFA-utilizing SRB was observed with 0.5 mM nitrite and permanent inhibition with concentrations of 1 mM or more. The addition of nitrate to medium flowing into an upflow, packed-bed bioreactor with an established VFA-oxidizing SRB consortium led to a spike of nitrite up to 3 mM. The nitrite-mediated inhibition of SRB led, in turn, to the transient accumulation of up to 13 mM of acetate. The complete utilization of nitrate and the incomplete utilization of VFA, especially propionate, and sulfate indicated that SRB remained partially inhibited. Hence, in addition to lower sulfide concentrations, an increase in the concentration of acetate in the presence of sulfate in waters produced from an oil field subjected to nitrate injection may indicate whether the treatment is successful. The microbial community composition in the bioreactor, as determined by culturing and culture-independent techniques, indicated shifts with an increasing fraction of nitrate. With VFA and sulfate, the SRB genera Desulfobotulus, Desulfotignum, and Desulfobacter as well as the sulfur-reducing Desulfuromonas and the NR-SOB Arcobacter were detected. With VFA and nitrate, Pseudomonas spp. were present. hNRB/NR-SOB from the genus Sulfurospirillum were found under all conditions.

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“…Several authors have speculated on their potential as complexing agents for the transport of base metals (Gardner, 1974;Giordano, 1985;Carothers and Kharaka, 1978;Fisher, 1987;Hennet et al, 1988;MacGowan and Surdam, 1988). Although the concentration of organic acids in some oil field waters is low or nil, analytical concentrations of up to -10 000 ppm acetate have been reported in others, together with as much as ~4 400 ppm propanoate, -2 500 ppm molonate (propandioate), -700 ppm butanoate, -500 ppm oxalate, -400 ppm pentanoate, and -100 ppm each of hexanoate and heptanoate, along with lesser concentrations of many other organic anions (Hennet et al, 1988).…”

Section: Potential Contribution Of Organic Acids In Oilfield Brinementioning

confidence: 99%

Geochemistry of the sediment-hosted disseminated gold deposits in Southwestern Guizhou Province, China /

Bao¹

2001

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Distribution and occurrence of aliphatic acid anions in deep subsurface waters

Cited by 134 publications

References 4 publications

The role of organic acid in the abiogenic reduction of sulfate and the sulfur isotope effect.

The role of organic acid in the abiogenic reduction of sulfate and the sulfur isotope effect.

Competitive Oxidation of Volatile Fatty Acids by Sulfate- and Nitrate-Reducing Bacteria from an Oil Field in Argentina

Geochemistry of the sediment-hosted disseminated gold deposits in Southwestern Guizhou Province, China /

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