加重剂 | 状态 | 表观黏度/(mPa·s) | 塑性黏度/(mPa·s) | 动切力/Pa | NΦ6 | NΦ3 | pH值 | API滤失量 /mL | 低剪切速率黏度/(mPa·s) |
NaCl | 滚前 | 27 | 13 | 14 | 13 | 11 | - | - | - |
滚后 | 28 | 14 | 14 | 12 | 11 | 9 | 4.4 | 24,680 | |
KCl | 滚前 | 27 | 13 | 14 | 13 | 11 | - | - | - |
滚后 | 28 | 14 | 14 | 12 | 11 | 9 | 4.4 | 25,440 | |
HCOONa | 滚前 | 26 | 12 | 14 | 11 | 10 | - | - | - |
滚后 | 25 | 12 | 13 | 11 | 10 | 9 | 3.6 | 26,780 | |
HCOOK | 滚前 | 27 | 14 | 13 | 11 | 10 | - | - | - |
滚后 | 26 | 13 | 13 | 10 | 9 | 9 | 3.8 | 23,690 | |
KCl + 碳酸钙MBA | 滚前 | 27 | 13 | 14 | 13 | 11 | - | - | - |
滚后 | 28 | 14 | 14 | 12 | 11 | 9 | 4.2 | 25,480 | |
KCl + 碳酸钙MBA | 滚前 | 27 | 13 | 14 | 13 | 11 | - | - | - |
滚后 | 28 | 14 | 14 | 12 | 11 | 9 | 4.2 | 26,400 |