CAUSES FOR INTENSIFICATION OF CARBON DIOXIDE CORROSION OF STEEL EQUIPMENT AND PIPELINES OF OIL AND GAS FIELDS
UDC: 620.193/197:622.692.4
DOI: 10.33285/2073-9028-2019-2(295)-88-95
Authors:
Elagina Oksana Y.
1,
Nakonechnaya Ksenia V.1
1 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation
Keywords: carbon dioxide corrosion, corrosion rate, intensification of the corrosion process.
Annotation:
The article is devoted to the reasons causing the intensification of carbon dioxide corrosion. Methods of its identification are considered on the example of production of wells of the Karazhanbas field. The results of the studies showed the possibility of using X-ray structural analysis of corrosion deposits as a method of corrosion monitoring. The necessity to isolate wells with a pH value of 6,5 and below was revealed with an increase in partial pressure up to 3 kPa and above at the temperature of the produced fluid of 50 °C to a complicated pool for selecting equipment in corrosion-resistant design.
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