Gel Propagation Through Fractures

Abstract

Summary Based on experimental results, a model was developed to quantify gel propagation and dehydration during extrusion through fractures. To maximize gel penetration along fractures, the greatest practical injection rate should be used. On the other hand, in wide fractures or near the end of gel injection, gel dehydration may be desirable to form rigid gels that are less likely to wash out after placement. In these applications, reduced injection rates may be appropriate. Significant advantages could be realized for gels made with a polymer that has the largest available molecular weight.