FOR THE PROACTIVE MANAGEMENT OF PIPELINE CORROSIONCoMic™ detects micelles and so provides information on optimal corrosion inhibitor dosage; it provides increased risk assurance
ApplicationsRegular
testing as partof an improved
corrosion management
system
Time savinglab chemical
screening tool
Fieldinhibitor dose optimisation
Troubleshoot production
issues onsite
Consumables e.g. LUX Marker™
Data analysisInstrument
For onshore and o� shore use
A micelle is a nanoscale aggregate of corrosion inhibitor that forms when a system has reached saturation i.e. corrosion inhibitor has adhered to every available surface (pipe, solid, interface)
Optimally-dosedCorrosion inhibitor working at its maximum eff ectiveness
Over-dosedSurplus chemical used; increased risk of emulsions and separation issues
Corrosion inhibitor
Micelle Cross-section of micelle
Under-dosedIncreased risk of corrosive attack and loss of integrity
CoMic™ helps to optimise corrosion inhibitor use by measuring for the presence and amount of corrosion inhibitor micelles*. There is a strong link between the optimum functional dose for organic fi lm-forming corrosion inhibitors and the concentration at which micelles form in a system i.e. its critical micelle concentration (CMC).
* Patent pending
Details on use• For onsite use; so avoiding sample
degradation associated with transit time to central lab and subsequent inaccurate results
• Samples are tested (i.e. it is not an online instrument)
• Simple to perform (mix sample and marker, place in instrument, read signal)
• Quick to perform (minutes)
• Data analysis (micelle interpretation) conducted by LUX personnel for robustness
• All chemicals and consumables are provided
Typical data• Fluids from an inter-platform pipeline were tested for the
presence of corrosion inhibitor micelles
• CoMic™ materials were taken to the asset and fresh samples were provided by asset staff
• Testing of samples in the off shore laboratory with CoMic™ only took a few minutes
• Data from testing the ‘input’ fl uid indicated the presence of micelles but these were not apparent in the fl uid reaching the destination platform (‘output’)
• The analysis provided information to the operator, beyond that already available from probes and residual monitoring, to better understand the corrosion risks that existed in the pipeline
Typical CoMic™ data
CoMic™ provides information not off ered by other monitoring approaches; it is a complementary tool
CoMic™ Simple residual analyses e.g. methyl orange
Complex residual analysis e.g. LC-MS
Corrosion rate testing e.g. coupons, probes
Suitable for fi eld use? ✔ ✔ ✘ ✔ (not all)
Reliable & accurate? ✔ ✘ ✔ ✔ (not all)
Robust to interferences(e.g. oil, scale inhibitors)?
✔ ✘ ✘ ✘ (not all)
Indicates if dosage is optimal? ✔ ✘ ✘ ✔
Indicates overdosing? ✔ ✘ ✘/✔ ✘
Provides concentration info? ✘ ✔ ✔ ✘
“ The CMC should be used as the treatment rate in the fi eld since maximum inhibition is achieved at this concentration.”K. Tsui, J. E. Wong and N. Park,Corrosion 2010 Paper 10326
Mic
elle
-Lik
e P
arti
cles
20000
18000
16000
14000
12000
10000
8000
6000
4000
2000
0Input Output
For More Information Contact:
Dr Cameron [email protected]
T+44 131 516 7290
LUX Assure Ltd, Unit 5.3, Research Avenue SouthHeriot Watt Research Park, Edinburgh EH14 4AP, UK
www.luxassure.com
CoMic™ current status - trialled, deployed and commercially available CoMic™ is unique. No other company can provide our corrosion inhibitor micelle detection tool.
LUX Assure: By applying Life Science concepts LUX aims to become the world leader in providing new technology to monitor diffi cult to detect chemicals used by the oil industry. LUX’s other analysis technologies cover areas such as Methanol and MEG, Chemical Tracers and Oil in Water.
The CoMic™ instrument
Top Related