Biocide Testing

Rikke  Markfoged

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Biocide testing

Biocide Testing

Evaluation and Optimization of Biocide Performance

Microbiologically Influenced Corrosion (MIC), reservoir souring and biofouling of production systems are well known problems in mature oilfields. Usually, biocides are used as part of the solution to combat and kill microorganisms.

Due to variations in the microbial community on the MIC coursing biofilm, the optimal biocide regime in a pipeline is often difficult to plan without actual testing. Consequently, overdosing of biocides will have negative impacts on both cost and environment, while insufficient dosing of biocides may increase the risk of failures and unplanned production shut down due to uncontrolled growth of microorganisms.
 
To tackle the biocide challenges, DTI Oil & Gas offers a range of customizable services, all designed to provide the necessary knowledge and evidence for the proper choice of an antimicrobial strategy in your particular system. All our services focus on system relevant microbial biofilm, and span from initial screening of a variation of biocides and concentrations, to optimization of a biocide regime, and evaluation of its effect in the field.

Our testing includes four different levels

  • High-through-put biocide screening allow our clients to rank a selection of biocide candidates based on their antimicrobial performances in laboratory tests.
  • Biocide regime optimization helps define the optimal exposure time, concentration and dosing frequency of a selected biocide for a given system. Tests are done on biofilm in dynamic conditions and evaluated by a combination of activity measurements, DNA-based testing and corrosion rates. Using field-relevant organisms, we offer our clients a test setup as close to real life as possible. 
  • Field test and validation - With a combination of water samples and surface samples, e.g. Corrosion Monitoring Unit (CMUTM) or corrosion coupons from side-stream installations, we evaluate and optimize the antimicrobial program in the field with a reliable feedback loop consisting of microbiology data obtained with DNA-based testing technologies.
  • Sustained control is to be employed once the optimal strategy has been implemented, that is why we offer our clients routine microbiological monitoring.

Based on our broad testing capabilities, we also participate in test and development of new antimicrobial strategies and alternative treatments.

Our experienced oilfield microbiology experts are always available to discuss challenges and solutions regarding biocide optimization and alternative antimicrobial strategies with you.