DOAJ Open Access 2020

Corrosion Evolution of a Concrete/Casing Steel in Simulated Formation Water under Different CO2 Partial Pressures

Shuliang Wang Mengjun Yao Xujia He Bensong Wu Li Liu +4 lainnya

Abstrak

The corrosion behavior, mechanical properties, and microstructural evolution of a concrete/P110 casing steel system were studied in a simulated, CO2-saturated formation water under different CO2 partial pressures. It has been found that the corrosion and mechanical properties of the cement and the cement/casing interface were affected by both cement hydration and CO2 corrosion, making the performance of the cement matrix and the interfacial transition zone improve initially and then deteriorate with time. The corrosion resistance of the casing steel reduced with increasing the immersion time and CO2 pressure. The degradation of cement and cement/casing interface was aggravated under the high CO2 pressure, which assisted the formation of a defected corrosion product layer (predominantly FexCa1-xCO3) and led to severer corrosion on the casing steel surface.

Topik & Kata Kunci

Industrial electrochemistry Physical and theoretical chemistry

Penulis (9)

Shuliang Wang

Mengjun Yao

Xujia He

Bensong Wu

Li Liu

Shidong Wang

Mingyu Wu

Xingguo Zhang

Dinghan Xiang

Format Sitasi

APA MLA BibTeX

Wang, S., Yao, M., He, X., Wu, B., Liu, L., Wang, S. et al. (2020). Corrosion Evolution of a Concrete/Casing Steel in Simulated Formation Water under Different CO2 Partial Pressures. https://doi.org/10.20964/2020.10.40

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.20964/2020.10.40

Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.20964/2020.10.40
Akses: Open Access ✓