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preheadingLaboratories/Corrosion Monitoring and Inhibitor Efficiency Techniques
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Inroduction
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sub CORROSION
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Client Area

 

Integrated Corrosion Test Rig
This test rig is comprised of flow loops (FL) for simulating the flow regimes experienced in pipes and producing wells; a rotating cylinder electrode (RCE); and a jet impingement (JI). The RCE permits turbulent flow conditions to be simulated at low Reynolds numbers and the jet impingement enables high turbulence and mixed flow conditions to be simulated. The FL enable simultaneous corrosion tests to be performed by weight loss as well as electrochemical measurements. The FL and RCE can each simulate flow shear stress values of up to 250 Pa, while JI allows the simulation of larger shear stress values.

Rotating Cylinder Electrodes
The RCE’s allow Roemex to rapidly evaluate the effect of flow on the performance of candidate products, as they will attain turbulent flow at low Reynolds numbers.

Bubble Test Apparatus
This facility has 8 cells with the capability for conducting tests under sweet or sour conditions and at temperatures up to 95°C. This apparatus enables rapid screening of candidate products prior to evaluation using RCE or integrated corrosion test rig.

Localised Corrosion Test Cell
Roemex have a test cell for evaluating the effectiveness of corrosion inhibitors to mitigate pitting or crevice corrosion under well-defined geometry and temperature. This facility can accurately simulate crevice gaps in the range of 5 micrometers upward.

Applied Corrosion Monitoring (ACM) Equipment
Roemex have an ACM Gill 12, 12-channel potentiostat for electrochemical corrosion tests. This computer-driven facility is equipped with a wide range of techniques, including Linear Polarisation Resistance (LPR), Zero Resistance Ammeter (ZRA), Electrochemical Noise Measurement (ENM), Electrochemical Impedance Spectroscopy (EIS), Harmonic Analysis, Potentiodynamic and Galvanodynamic sweeps. This versatile equipment permits up to 12 tests to be carried out simultaneously at different conditions and using the same or a combination of techniques.

Coupon Evaluation - Roemex regularly conduct weight loss coupon tests on materials supplied by clients. We have the capability for conducting static tests in house at temperatures up to 200°C. Other dynamic, high temperature-high pressure tests can be conducted along with SEM analysis of the metal surface for detailing any damage.

Field Corrosion Monitoring Sidestream Unit
To facilitate effective corrosion management in the field Roemex utilise a Corrosion Sidestream fitted with 3 high-pressure stainless steel corrosion cells and LPR probes. Corrosion rates of fluids are monitored using a portable ACM Instruments LPR monitor. The unit can be used in conjunction with a chemical injection pump in order to field trial corrosion inhibitors.




 

 

spacer Roemex Limited Badentoy Crescent Portlethen Aberdeen UK - Tel: +44 (0) 1224 783444 Fax: +44 (0) 1224 783663 Email: info@roemex.com
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