G级高抗硫酸盐型油井水泥本公司内控指标及公司代表值 | |||||
序号 | 技术要求 | GB10238-2005规定 | 本公司内控指标 | 公司代表值 | |
1 | 氧化镁 | ≤6.0% | ≤4.5% | 2.03 | |
2 | 三氧化硫 | ≤3.0% | ≤3.0% | 2.09 | |
3 | 烧失量 | ≤3.0% | ≤2.5% | 1.14 | |
4 | 不溶物 | ≤0.75% | ≤0.75% | 0.33 | |
5 | 硅酸三钙 | ≤65%,≥48% | ≤65%,≥48% | 51.61 | |
6 | 铝酸三钙 | ≤3.0% | ≤3.0% | 1.55 | |
7 | 铝铁酸四钙+二倍铝酸三钙 | ≤24.0% | ≤24.0% | 19.5 | |
8 | 总碱含量 | ≤0.75% | ≤0.60% | 0.48 | |
9 | 游离液含量 | ≤5.9% | ≤5.9% | 3.22 | |
10 | 38℃常压8h抗压强度 | ≥2.1MPa | ≥2.5MPa | 5.39 | |
11 | 60℃常压8h抗压强度 | ≥10.3MPa | ≥12.0MPa | 15.67 | |
12 | 15-30min稠度 | ≤30 Bc | ≤30 Bc | 19.07 | |
13 | 稠化时间 | ≥90min,≤120min | ≥90min,≤120min | 106 |