... in Figure 2 . Abstract Biofouling is the formation of composite deposits consisting of living organic matter and inorganic salts. So far there is little mechanistic information on biofouling. In this work, the role of the presence of microalgae on the nucleation and growth of calcium carbonate from aqueous...

... to influence biocide choice and applications in the field. The impact of biocides on the field microbial characteristics are described and discussed. corrosion microbial monitoring biocides APB acid producing bacteria SRB sulfate reducing bacteria biofilm biofouling bug bottles flow cell cytometer...

... seafaring and trading nation, took tin for this purpose from as far away as the south of England, perhaps as early as 1,500BC. copper alloys seawater localized corrosion erosion pollutants biofouling INTRODUCTION The journey of copper and its alloys and their application in the marine environment...

... remote locations but also within locations of close proximity. This shows that a wide variety of biocides are needed to address microbial populations. 16s amplicon metagenomics water cooling towers corrosion biofouling microbial monitoring biocides INTRODUCTION Background on WCT Microbial Issues...

... seven decades. These data are still widely referenced and used in materials selection for marine environments. seawater marine atmosphere testing in natural environments forms of corrosion biofouling INTRODUCTION Francis Laurence LaQue (pronounced La-Kwee) was born in Gananoque, Ontario, Canada...

... qualification. Biofilms Sessile Kill Study CDC Biofilm Reactor CLSM ATP quantification Microbially Influenced Corrosion MIC Biofouling Next-Generation DNA sequencing Failure Analysis INTRODUCTION Microbiologically Influenced Corrosion (MIC) is a major cause of corrosion failures in oilfield production...

... : Water Micro Associates , 1987 ). 3 Yu   F.P. , Dallmier   A.W. , and McCoy   W.F. , “ Fill Fouling Control in Cooling Towers ”, Cooling Tower Institute Annual Convention , Paper No. TP98-04 ( Houston, TX , CTI , 1998 ). 4 Flemming   H.C. and Geesey   G.G. , Biofouling...

... biocides acid producing bacteria biofilm biofouling bug bottles epifluorescence ATP microscopy INTRODUCTION Microbial activity negatively impacts the oil and gas industry through the production of biogenic sulfide (H₂S), through the process of microbial influenced corrosion (MIC...

... a metal stamp for identification purposes. (1) α = Δ m ρ 0 ⋅ A 0 ⋅ 365 K Abstract A field testing of corrosion and biofouling behavior of eight copper alloys was carried out at the Portsmouth Harbor, USA (North Atlantic Ocean). The plate specimens of the alloys were submerged...

... reactions occurring at the biofouled interface will thus take place through the biofilm thickness. ⁵ Bacterial corrosion leads to much higher rates of corrosion then when the bacteria would not be present. Among others, sulfate reducing bacteria (SRB) were found to be present in the fluid...

... and recent developments with the technology. The paper will conclude with an example of how NAEC technology has been used to develop proactive solutions to microbiological problems in the oil & gas industry. Bacterial culturing biofouling corrosion mitigation strategies DNA analysis MIC...

...Subsequent secondary corrosion reactions also play an important role in the biofouling resistance of the material. During this part of the corrosion process another oxide layer is generated by a reaction of released ions with compounds in seawater. This top layer consists usually of cuprous...

... of bacteria/MIC control and optimize the use of the annual OPEX on bacteria control. The long-term business impact is to comply with governmental regulations related to HSE. Bacteria Microbiologically Induced Corrosion Reservoir souring Tight gas reservoirs Fracturing Bacterial growth Biofouling...

... phosphonium compound tributyl tetradecyl phosphonium chloride TTPC surface activity biofilm biofouling souring microbiologically influenced corrosion MIC INTRODUCTION Biofilms can be defined as the accumulation of microorganisms on a surface. The microorganisms excrete a polysaccharide-based matrix...

... by the biocide was determined 4, 24, 48, and 72 hours and also 7 days after inoculation of the test solutions, relative to the initial count in the control sample. Model Biofouling System Description A recirculating model loop system was used for the biocide evaluation and is shown in Figure 1 . The complete...

... salinity reduces the dissolved oxygen levels. Near-bottom salinity concentration is relatively constant. Flow rates Abstract The proposed installation of deep-water oil and gas facilities will bring the attention of potential biofouling communities which will eventually colonize subsea structures. Marine...

..., B100 had the highest propensity for biofouling while the highest corrosion rates were measured in ultra-low-sulfur diesel. corrosion diesel biodiesel biofouling MIC INTRODUCTION Microbial contamination of hydrocarbon fuels has been recognized as a problem for over 40 years. Microbial contamination...

... and oxygen scavengers and has excellent thermal stability which makes it broadly applicable to oilfield water systems. biocide quaternary phosphonium compound tributyl tetradecyl phosphonium chloride TTPC surface activity compatibility biofouling souring microbiologically influenced corrosion MIC...

... be achieved through the use of model biofilm systems. Many variations of biofouling models have been used to evaluate biocide dosing strategies under simulated dynamic conditions; however, these systems were complicated and time-consuming to operate. Newer methods are available using microtiter plates...

... bromochlorodimethylhydantoin BCDMH Legionella pneumophila biofilm biofouling industrial cooling water cooling tower INTRODUCTION Other investigators have also used dynamic systems to evaluate the effectiveness of biocides against Legionella. McCall et. al. used a model water system consisting...