J55钢在模拟CO2 注入井环空环境中的关键性腐蚀因素

J55钢在模拟CO₂ 注入井环空环境中的关键性腐蚀因素

崔怀云, 刘智勇, 卢琳

Critical Corrosion Factors for J55 Tubing Steel in a Simulated Annulus Environment of CO₂ Injection Well

CUI Huaiyun, LIU Zhiyong, LU Lin

表10 Spearman等级相关分析结果

Table 10 Results of Spearman correlation analysis

		P_total	$P_{C O_{2}}$	pH	T	R_ct	I_corr
P_total	r	1.000	0.000	0.000	0.000	0.147	-0.211
P_total	P	-	1.000	1.000	1.000	0.602	0.451
$P_{C O_{2}}$	r	0.000	1.000	0.232	0.000	-0.623^*	0.692^**
$P_{C O_{2}}$	P	1.000	-	0.405	1.000	0.013	0.004
pH	r	0.000	0.232	1.000	0.000	-0.078	0.085
pH	P	1.000	0.405	-	1.000	0.781	0.765
T	r	0.000	0.000	0.000	1.000	-0.692^**	0.633^*
T	P	1.000	1.000	1.000	-	0.004	0.011
R_ct	r	0.147	-0.623^*	-0.078	-0.692^**	1.000	-0.986^**
R_ct	P	0.602	0.013	0.781	0.004	-	0.000
I_corr	r	-0.211	0.692^**	0.085	0.633^*	-0.986^**	1.000
I_corr	P	0.451	0.004	0.765	0.011	0.000	-