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The effect of pressure and temperature on sulphate‐reducing bacteria and the action of biocides in oilfield water injection systems
Author(s) -
Stott J. F. D.,
Herbert B. N.
Publication year - 1986
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1986.tb03758.x
Subject(s) - sulfate reducing bacteria , biocide , hydrostatic pressure , bacteria , corrosion , chemistry , bacterial growth , hydrogen sulphide , hydrogen , environmental chemistry , pulp and paper industry , environmental science , petroleum engineering , sulfate , geology , sulfur , organic chemistry , thermodynamics , paleontology , physics , engineering
The effects of elevated pressures and temperatures on the growth, morphology and metabolic activity of sulphate‐reducing bacteria, isolated from the North Sea, are described. Pressure/temperature profiles, growth curves and sulphate reduction rates are presented for several isolates. The maximum pressure and temperature that supported growth were 65 000 KPa and 45°C respectively. The results are discussed in connection with water injection into oil‐bearing reservoirs where there is a concern that generation of hydrogen sulphide by sulphate‐reducing bacteria may lead to increased hydrogen sulphide levels (souring) in oil and gas, and to corrosion problems in production facilities. The bacteriostatic effects of a number of commercial biocides were enhanced at elevated hydrostatic pressures and temperatures.