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51318-11616-High Concentration Biocide Treatment of an Oil Pipeline

Picture for High Concentration Biocide Treatment of an Oil Pipeline
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An oil transmission pipeline in the Eagle Ford area was being treated with 150ppm of active biocide based on a five percent water hold up but good control of the microbial population was not being maintained.

 

Product Number: 51318-11616-SG
Author: Zach Broussard / Timothy J Tidwell / Renato De Paula / Victor Keasler
Publication Date: 2018
Industry: Gas/Liquid Pipelines
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$20.00
$20.00

An oil transmission pipeline in the Eagle Ford area was being treated with 150ppm of active biocide based on a five percent water hold up but good control of the microbial population was not being maintained based on cATP data obtained from swabbing coupons within the system. Based on field data and recommendations, 3750ppm of active biocide was chosen to replace the incumbent biocide treatment and a sessile kill study was requested to validate the treatment plan before being implemented in the field. Subsequent sessile kill studies and biofilm regrowth studies indicated that an initial biocide treatment was not successful in killing or removing biofilm but that a second biocide treatment, performed two weeks after the initial treatment, was much more effective. Several mechanisms of biofilm resistance to biocide treatments are discussed to help understand the efficacy of this biocide treatment plan.

 

Key words: MIC, Biofilm, Sessile kill study, Bioreactor, CLSM, ATP Quantification, Biofilm Regrowth, Biocide

An oil transmission pipeline in the Eagle Ford area was being treated with 150ppm of active biocide based on a five percent water hold up but good control of the microbial population was not being maintained based on cATP data obtained from swabbing coupons within the system. Based on field data and recommendations, 3750ppm of active biocide was chosen to replace the incumbent biocide treatment and a sessile kill study was requested to validate the treatment plan before being implemented in the field. Subsequent sessile kill studies and biofilm regrowth studies indicated that an initial biocide treatment was not successful in killing or removing biofilm but that a second biocide treatment, performed two weeks after the initial treatment, was much more effective. Several mechanisms of biofilm resistance to biocide treatments are discussed to help understand the efficacy of this biocide treatment plan.

 

Key words: MIC, Biofilm, Sessile kill study, Bioreactor, CLSM, ATP Quantification, Biofilm Regrowth, Biocide

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51316-7322-Methodology for the comparative evaluation of batch biocide performance against microbial corrosion

Product Number: 51316-7322-SG
ISBN: 7322 2016 CP
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This study describes a laboratory test system which was specifically developed to assess the ability of biocides to lower microbial corrosion rates. It was found that the common oilfield biocides THPS and glutaraldehyde, dosed at concentrations of 300 ppm for 4 hours weekly over 5 weeks, could reduce MIC rates from 109.7 mpy to as low as 4.3 mpy
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