This set of data illustrating how CleanFRAC™ FR may stand out during a frac job. We all know that HCl (particularly 15%) is commonly used during fracturing, especially at the spearhead stage. However, the use of HCl imposes at least three-fold stress on an FR:
- high temperature exposure of FR to strong acid;
- ferric ion because of HCl/carbon steel reaction;
- abundance of calcium ion because of HCl/carbonate reaction.
Results seen from the graph below:
- When a conventional FR was heated in HCl, it forms a large chunk of gel (image A)
- When CleanFRAC™ was heated in HCl, it remains a crystal-clear solution (image B)
- After CleanFRAC™ was heated in HCl and post-adding ferric @1000 ppm, the FR solution still maintains its clarity (image C)