Inhibitor of CaCO3-HCl reaction for Long-distance Acidizing (ILA)
Pubdate：2022-03-15
Inhibitor of CaCO3-HCl reaction for Long-distance Acidizing (ILA)
ILA is invented and designed for remote acidizing process, especially for high temperature formation, for high temperature over 90℃, the slow release of HCl effectively reduces the CaCO3-HCl reaction speed.
Test result under the condition of 90 ℃, put 8g limestone into 200g 20%HCl, the consuming time ( 4g, 50% ) as follows：
Item | Time |
20% HCl | 3 minutes |
20% HCl with gelling agent | 24 minutes |
20%HCl with ILA | 280 minutes |
