Author Archive: beatcorrosion
beatcorrosion
September 28, 2015
Starting from the 90s, the AC interference attracts more attention of corrosion engineers due to the intensive use of very high electrical resistance coating of pipelines as well as sharing the Right of Way (ROW) between power transmission line with pipeline,…
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beatcorrosion
May 26, 2015
In Queensland, A registrable system is an impressed current cathodic protection system the converter of which is capable of delivering a current greater than 0.25A. However, a CP system, whether is registrable or non registrable, is required for initial start-up…
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beatcorrosion
May 25, 2015
Materials Consideration In the system, there are normally multiple materials in use. Some principles include: Austenistic and duplex stainless steel should be with great care to use hydrochloric acid or water with high chloride content; In the system using mixture…
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beatcorrosion
May 25, 2015
Well Acidising The acid is pumped into well to clean the scale and /or stimulate the production. Normally, large quantity of high concentration of hydrochloric acid, up to 15% w/w, is utilised. The bottom hole temperature of the production well…
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beatcorrosion
May 23, 2015
The electrical isolation status of buried isolator is more difficult to be tested. The overall resistance is equivalent of parallel resistance of soil and insulator. In a very low soil resistivity environment, the overall resistance for an properly functioning insulating…
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