Uniform CO2 corrosion in Saint Marcet (France) (CO2 corrosion on Carbon steel/cast iron in Water (produced with oil & gas) on a Piping/pipe line)
The corroded surface is extremely smooth, quasi polished. The corrosion rate estimated from the last inspection is 2 mm/y during 2 years. ...
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Protectiveness of corrosion layers and selective dissolution in CO2 corrosion (CO2 corrosion on Carbon steel/cast iron in Water (produced with oil & gas) on Tubing/casing)
Beside empty cementite, three other types of corrosion layers may also be induced in relationship with the precipitation of an iron salt. The salt presently involved in CO2 corrosion is siderite, a rhombohedral crystalline solid ...
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CO2 corrosion of a weld (CO2 corrosion on Carbon steel/cast iron in Water (produced with oil & gas) on a Piping/pipe line)
Figure 1 shows a genuine selective dissolution of the weld beam, which is excavated from the inside within the wall thickness, whereas the weld surface remains intact and no internal corrosion is occuring elsewhere. ...
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Use of tubing in 13 % Cr stainless steel (Multifaceted or indirect Corrosion on Stainless steels in Water (produced with oil & gas) on a Tubing/casing)
The very first 13 % Cr tubings were ordered in 1977 with the usual specifications for tubings, what they were, simply complemented by a clause of stainless steel composition. They were therefore delivered with ...
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Fatigue of a pump shaft (Fatigue on Stainless steels in Oil on Pumps/Valves)
The metal is a martensitic stainless steel, of the type 15 Cr-4Ni-1 Mo, meeting the technical brochure of the material supplier ...
Download case: 65 Ko