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Biocide Resistance in Microbes – An Oilfield Example

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Biocorrosion causes huge economic losses to the oil and gas industry.

Product Number: 51323-19122-SG
Author: Nazima Habibi, Saif Uddin, Abdul Hameed Al-Hashem, Anisha Shajan, Nasreem Abdul Razzack, Farhana Zakir
Publication Date: 2023
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Biocorrosion causes huge economic losses to the oil and gas industry. Microbes such as sulphate-reducing bacteria (SRBs), acid-producing bacteria (APBs), methanogens, iron-reducing bacteria (IRBs), sulphate-oxidizing bacteria (SOB) are the critical drivers of souring, biofouling, clogging, pitting and bio filming. The use of seawater and wastewater for enhanced oil recovery further exacerbates biocorrosion. This increased biocorrosion is primarily observed in injection wells using the wastewater-seawater. Significant concentrations of biocides are injected to address this. These biocides eventually impose selective pressure on the inherent microbial community and result in the development of resistance against the active compounds. Hence never resulting in total clearance of microbes. Lower biocide efficacy is widely observed in oil and gas industries; however, this is seldomly studied. Molecular approaches are likely to play a significant role in identifying genes conferring biocide resistance and the genetic elements involved in their transfer across other microbial communities.

Biocorrosion causes huge economic losses to the oil and gas industry. Microbes such as sulphate-reducing bacteria (SRBs), acid-producing bacteria (APBs), methanogens, iron-reducing bacteria (IRBs), sulphate-oxidizing bacteria (SOB) are the critical drivers of souring, biofouling, clogging, pitting and bio filming. The use of seawater and wastewater for enhanced oil recovery further exacerbates biocorrosion. This increased biocorrosion is primarily observed in injection wells using the wastewater-seawater. Significant concentrations of biocides are injected to address this. These biocides eventually impose selective pressure on the inherent microbial community and result in the development of resistance against the active compounds. Hence never resulting in total clearance of microbes. Lower biocide efficacy is widely observed in oil and gas industries; however, this is seldomly studied. Molecular approaches are likely to play a significant role in identifying genes conferring biocide resistance and the genetic elements involved in their transfer across other microbial communities.

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A decision support tool for best coating selection during trenchless pipe installation

Product Number: 51323-18849-SG
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Sometime More Is Just More: THPS Biocide Laboratory Kill Study on Wildtype Sulfate Reducing Bacteria.

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Publication Date: 2023
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Tetrakis(hydroxymethyl)-phosphonium Sulfate (THPS) is a very common active ingredient in oil and gas biocides. While product labels provide broad guidelines application dosing the lowest effective dose of THPS is difficult to determine. Site water chemistry and bacteria biology variability will affect the dose need to achieve the desired level of bacteria population control. For these reasons biocide dose response studies are commonly conducted on solutions containing bacteria to determine the effect of treatments before application.
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Novel Silicone Hardener for Eco-friendly Heat Resistant Coatings

Product Number: 51323-18951-SG
Author: Francisco Cortes Baledon, Markus Hallack, Peter Carter, Bin Cao
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For many years coatings based on methyl/phenyl silicone resins have proven to be one of the most effective and reliable products within the high heat and protective coatings segments. Their inorganic characters along with the methyl/phenyl modification provide outstanding long term thermal stability, attractive corrosion protection, weather resistance and good mechanical properties. In general, silicone resins for high heat applications can be categorized into two sub-groups: i) oven curing and ii) ambient temperature curing systems.
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