Abstract: In the exploitation of oil and gas, H2S/CO2 in the layer of earth causes carbonized corrosion to cement-stone, seriously affecting the cementing result. To improve the corrosion-resistant properties of cement-stone in the acid medium and basing on the analysis of corrosion mechanism of cement-stone in the presence of H2S and CO2 in this paper, it is experimentally proved that micro-silica is a kind of good fillers which increases the density of cement-stone and therefore enhances its compressive strength. Corrosion was performed on the cement-stone at different ages and the compressive strength was tested after the corrosion. The corrosion-resistant properties of pure cement and micro-silica-added cement were compared. Meanwhile, metallurgical microscope and X-ray diffraction were used to analyze the corrosion-resistant reasons after the addition of micro-silica.
谢兆军, 朱泽华, 叶中郎, 闫薇, 程小伟. 微硅对水泥石抗腐蚀性能影响的研究[J]. 水泥技术, 2011, 1(6): 36-39.
XIE Zhao-jun, ZHU Ze-hua, YE Zhong-lang, YAN Wei, CHENG Xiao-wei. Research on the Effect of Micro-silica on the Corrosion-resistant Performance of Cement-stone. Cement Technology, 2011, 1(6): 36-39.
