Geology, geography and global energy

Scientific and Technical Journal

Evaluating use of effective field protection inhibitor equipment in areas with high degrees of toxicity

2013. №1, pp. 47-55

Antoshkina Viktoriya V. - Student, Kuban State University, 149 Stavropolskaya st., Krasnodar, Russian Federation, 350040, viktoriaa_@mail.ru

Mercheva Valentina S. - C.Sc. in Technology, Associate Professor, Astrakhan State University, 20a Tatishchev st., Astrakhan, Russian Federation, 414056, geologi2007@yandex.ru

Kumeev Sergey S. - D.Sc. in Geology and Mineralogy, Professor, Kalmyk State University, 4 Suseev st., Elista, Republic of Kalmykia, Russian Federation, 358000, pgs-kgu@yandex.ru

Krasilnikova Olga V. - C.Sc. in Technology, LLC «Gazprom dobycha Astrakhan», 30 Lenin st., Astrakhan, Russian Federation, 414000, okrasilnikova@astrakhan-dobycha.gazprom.ru

The article reports on corroded field equipment that was used for developing hydrocarbon fields (containing oil, gas and gas condensates) as well as non-hydrocarbon, crude mixture-laden components. It adds that this work was implemented as a step towards extracting water and using the corroded equipment for hydrocarbon technologies alongside chemical and industrial reagents under special geo-ecological conditions. The situation is complicated, the critique relates, by the high degree of toxicity of sulfur compounds, including its hydrogen sulfide content. One of the most urgent problems, the document says, remains the challenge of evaluating the effectiveness of inhibitor protection for fishing equipment. This study aims to synthesize theoretical studies in conjunction with practical material, seeking, thereby, to evaluate the effectiveness of inhibitor protection within the Astrakhan gas condensate deposit’s (AGKM) physical-chemical parameters. Development of the latter, the study states, was carried out despite the high content of hydrogen sulfide, carbon dioxide and water withdrawal (especially with highly aggressive condensation) in the produced gas and condensate feedstock. Inhibitor protection related to regular corrosive monitoring at AGKM displayed the following characteristics: density, hydrogen ion content (pH), manganese and iron. During the water-extraction process, the review notes, the residual amounts of hydrogen sulfide and carbon dioxide were verified. The commentary points out, at this stage, that as non-destructive testing methods, these conventional corrosive monitoring applications for oil and gas reserves have proved highly reliable. Moreover, analysis of the test results in terms of residual corrosion inhibitor functionality has displayed a high presence of hydrogen sulfide quantities (above lower limit of 25 mg/dm3), theoretically enough to sustain the resulting protective film. The blueprint states, in conclusion, that the effectiveness of the inhibitor’s adequacy protection has been confirmed as a result of the regular physical-chemical studies and via visual inspection of the interior surface of tubing in the area from the mouth to 2000 m.

Key words: corrosion,hydrogen sulfide corrosion,corrode,rust inhibitor,inhibitory protection,hydrogen absorption,soluble tumor,water-condensing type,hydrocarbon (oil and gas) technology,geo-ecology

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