By Alireza Bahadori
Corrosion is a obviously happening price, worthy billions within the oil and gasoline area. New rules, stiffer consequences for non-compliance and getting older resources are all major businesses to enhance new expertise, tactics and larger budgets catering to 1 triumphing approach to prevention, cathodic safeguard. Cathodic Corrosion safety structures: A Guide for Oil and gasoline Industries trains on the entire helpful stories, inspection standards, corrective measures and significant criteria wanted on numerous oil and fuel gear, buildings, tanks, and pipelines. calls for within the cathodic defense marketplace have pushed improvement for larger units and strategies, assisting to extend the apparatus and pipeline’s lifestyles and integrity. Going past simply searching for leaks, this guide supplies the engineer and supervisor the entire important instruments had to prepare a secure cathodic safety process, if it is for buried casing whereas drilling, offshore constructions or submarine pipelines.
- Understand tips on how to set up, check out and have interaction the precise cathodic defense structures for numerous oil and gasoline gear, tanks, and pipelines
- Properly build the proper process and anodes with all correct US and foreign criteria that apply
- Gain wisdom pertaining to innovations, gear, measurements and attempt equipment utilized in real-world box scenarios
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Additional info for Cathodic Corrosion Protection Systems: A Guide for Oil and Gas Industries
A larger structure/electrolyte potential change is necessary at the points of application if the length of the structure protected from any one point is increased. Thus, interaction can be reduced by applying protection at a larger number of points so that the structure/electrolyte potential change on the primary structure is more uniform and by ensuring, as far as other considerations allow, that the points of application and associated larger structure/electrolyte potential changes are remote from other structures.
2. Connection of the two structures by means of one or more remedial bonds should be made, which may include suitable resistors to limit the current to the minimum necessary to correct the interaction. This is one of the most effective methods of reducing possible corrosion interaction. A remedial bond should preferably be connected to the secondary structure at or near the point where the maximum positive structure/electrolyte potential change was measured, but if the structures are some distance apart at this point, and it is more convenient, the installation of a remedial bond at a point not too distant, where the structures are closer together, may be satisfactory.
Buried plant piping. 10. Seawater intake systems. 11. Desalination plants. Galvanic cathodic protection should be applied to but not necessarily limited to the following: 1. Submarine pipelines (beyond the influence of impressed current schemes). 2. Short sections of buried land pipes in areas where soil resistivities are <5000 ohm-cm and ac power is not available or in special cases such as road crossings. 3. Offshore structures and piers where power sources are not available also for all offshore structures for temporary protection during construction and for achieving rapid polarization and maintaining protection in conjunction with impressed current systems.