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Sulfate-Reducing Prokaryotes from North Sea Oil reservoirs; organisms, distribution and origin

Abstract

During oil production in the North Sea, anaerobic seawater is pumped in which stimulates the growth of sulphate-reducing prokaryotes that produce hydrogen sulphide. This sulphide causes major health hazards, economical and operational problems. As told in this thesis, several strains of sulphate reducers have been isolated from North Sea oil field waters. Antibodies have been produced against these strains and used to investigate the distribution of sulphate reducers in a North Sea oil reservoir. The result showed a high diversity among sulphate reducers, with different strains belonging to different parts of the reservoir. Some of these strains have been further characterized. The physiological and phylogenetic characterization showed that strain 7324 was an archaean. Strain A8444 was a bacterium, representing a new species of a new genus. A benzoate degrading sulphate reducing bacterium was isolated from injection water, and later the same strain was detected in produced water. This is the first field observations indicating that sulphate reducers are able to penetrate an oil reservoir. It was found that the oil reservoir contains a diverse population of thermophilic sulphate reducers able to grow on carbon sources in the oil reservoir, and to live and grow in this extreme environment of high  More>>
Authors:
Publication Date:
Dec 31, 1996
Product Type:
Thesis/Dissertation
Report Number:
NEI-NO-1036
Reference Number:
SCA: 020300; PA: NW-99:005073; EDB-99:039955; SN: 99002075259
Resource Relation:
Other Information: DN: Reprints of 4 previously printed papers are attached; TH: Thesis (Dr.scient.); PBD: 1996
Subject:
02 PETROLEUM; PETROLEUM; NORTH SEA; RESERVOIR ENGINEERING; HAZARDS; SULFATE-REDUCING BACTERIA; HYDROGEN SULFIDES
OSTI ID:
328134
Research Organizations:
Bergen Univ. (Norway)
Country of Origin:
Norway
Language:
English
Other Identifying Numbers:
Other: ON: DE99733766; ISBN 82-7761-004-1; TRN: NO9905073
Availability:
OSTI as DE99733766
Submitting Site:
NW
Size:
101 p.
Announcement Date:

Citation Formats

Beeder, Janiche. Sulfate-Reducing Prokaryotes from North Sea Oil reservoirs; organisms, distribution and origin. Norway: N. p., 1996. Web.
Beeder, Janiche. Sulfate-Reducing Prokaryotes from North Sea Oil reservoirs; organisms, distribution and origin. Norway.
Beeder, Janiche. 1996. "Sulfate-Reducing Prokaryotes from North Sea Oil reservoirs; organisms, distribution and origin." Norway.
@misc{etde_328134,
title = {Sulfate-Reducing Prokaryotes from North Sea Oil reservoirs; organisms, distribution and origin}
author = {Beeder, Janiche}
abstractNote = {During oil production in the North Sea, anaerobic seawater is pumped in which stimulates the growth of sulphate-reducing prokaryotes that produce hydrogen sulphide. This sulphide causes major health hazards, economical and operational problems. As told in this thesis, several strains of sulphate reducers have been isolated from North Sea oil field waters. Antibodies have been produced against these strains and used to investigate the distribution of sulphate reducers in a North Sea oil reservoir. The result showed a high diversity among sulphate reducers, with different strains belonging to different parts of the reservoir. Some of these strains have been further characterized. The physiological and phylogenetic characterization showed that strain 7324 was an archaean. Strain A8444 was a bacterium, representing a new species of a new genus. A benzoate degrading sulphate reducing bacterium was isolated from injection water, and later the same strain was detected in produced water. This is the first field observations indicating that sulphate reducers are able to penetrate an oil reservoir. It was found that the oil reservoir contains a diverse population of thermophilic sulphate reducers able to grow on carbon sources in the oil reservoir, and to live and grow in this extreme environment of high temperature and pressure. The mesophilic sulphate reducers are established in the injection water system and in the reservoir near the injection well during oil production. The thermophilic sulphate reducers are able to grow in the reservoir prior to, as well as during production. It appears that the oil reservoir is a natural habitat for thermophilic sulphate reducers and that they have been present in the reservoir long before production started. 322 refs., 9 figs., 11 tabs.}
place = {Norway}
year = {1996}
month = {Dec}
}