铁细菌对L245钢腐蚀行为的影响研究

王坤泰, 陈馥, 李环, 罗米娜, 贺杰, 廖子涵

Corrosion Behavior of L245 Pipeline Steel in Shale Gas Fracturing Produced Water Containing Iron Bacteria

WANG Kuntai, CHEN Fu, LI Huan, LUO Mina, HE Jie, LIAO Zihan

表2 L245钢在含FB页岩气压裂产出水中的电化学阻抗谱拟合参数

Table 2 Fitting electrochemical parameters of EIS of L245 steel in FB-containing produced water

Time d	R_sΩ·cm²	Q_f		R_f Ω·cm²	Q_dl		R_ct Ω·cm²
Time d	R_sΩ·cm²	Y_f / 10^-6 Ω^-1·cm^-2·s^-n	n_dl	R_f Ω·cm²	Y_dl / 10^-6 Ω^-1·cm^-2·s^-n	n_dl	R_ct Ω·cm²
4	22.42	286	0.854	1967	3762	0.972	299.5
5	21.51	342	0.842	1690	3488	0.933	320.5
8	19.2	266	0.530	2.981	484	0.842	1488
10	15.3	1724	0.690	0.021	---	0.894	1016
16	14.65	247	1	1.731	1518	0.753	845.7
21	15.64	1893	0.839	38.04	202.4	0.980	816.9