When Polymer-based Acids can be used? A Core Flood Study

In-situ gelled acids that are based on polymers have been used in the field for several years, and were the subject of many lab<br>studies. An extensive literature survey reveals that there are conflicting opinions about using these acids. On one hand, these<br>acids were used in the field, with mixed results. Recent lab work indicated that these acids can cause damage under certain<br>conditions. There is no agreement on when this system can be successfully applied in the field.