25:30 Typo: the first term of the net pressure equation should be (80/pi^2)^(1/5). The exponent is wrong. The typo is originally in Valko and Economides book "Hydraulic Fracture Mechanics" equation (9.15).
@dnicolasespinoza52584 жыл бұрын
A grad student recently shared this resource with me which I find very helpful: www.frackoptima.com/userguide/theory/governing-equations-kgdpkn.html