A new methodology to calculate pressure drop in fractures and predict their hydraulic diameter.

1-Experimental pressure drop and fracture flow through fracture for: -Borate and polymer suspensions at different compositions; -industrial water; -xantham gum; 2-A new correlation between volumetric fracture flow and pressure drop; 3- Fracture sealing data, including a new correlation to estimate the hydraulic diameter at different moments during the sealing; 4- High pressure filtration data for xantham gum and lost circulation materials.