Evaluation of TG202 inhibitor for tubing steels in 15% hydrochloric acid by electrochemical noise technology

Mifeng Zhao; Juantao Zhang; Fangting Hu; Anqing Fu; Kelin Wang; Chengxian Yin; Juntao Yuan; Lei Fan

doi:10.1088/2053-1591/ac433f

Materials Research Express (Jan 2021)

Evaluation of TG202 inhibitor for tubing steels in 15% hydrochloric acid by electrochemical noise technology

Mifeng Zhao,
Juantao Zhang,
Fangting Hu,
Anqing Fu,
Kelin Wang,
Chengxian Yin,
Juntao Yuan,
Lei Fan

Affiliations

Mifeng Zhao: Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla 84100, People’s Republic of China
Juantao Zhang: Xi’an Sanhuan Petroleum Pipe Technology Co., Ltd, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China
Fangting Hu: Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla 84100, People’s Republic of China
Anqing Fu: State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China
Kelin Wang: Oil and Gas Engineering Research Institute of Petro China Tarim Oilfield Company, Korla 84100, People’s Republic of China
Chengxian Yin: ORCiD; Xi’an Sanhuan Petroleum Pipe Technology Co., Ltd, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China; State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China
Juntao Yuan: ORCiD; State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China
Lei Fan: State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi′an 710077, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/ac433f
Journal volume & issue: Vol. 8, no. 12
p. 126527

Abstract

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Acid fracturing is an effective technology for increasing oil and gas production. However, the acid will cause serious corrosion to the tubing. In this paper, the inhibition performance of the TG202 inhibitor for acidizing of high temperature and high-pressure gas wells on N80 carbon steel and 13Cr martensitic stainless-steel tubing in 15% hydrochloric acid was studied by electrochemical noise technology. The results showed that with the increase of TG202 inhibitor content, the noise resistance increased and the corrosion rate of tubing steel decreased. Under the same condition, the order of corrosion rate of tubing steels: 13Cr > HP-13Cr > N80 > P110. The pitting corrosion of HP-13Cr and 13Cr is significant. The research showed that the TG202 inhibitor had a protective effect on tubing during acidizing. The inhibition mechanism of the TG202 inhibitor was discussed.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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