Fracture Closure Pressure


Fracture Closure Pressure : The earth stresses acting to try to close a hydraulic fracture offset by the pore pressure. A measurement of the pressure at which the fractured formation closes. Generally determined by the change in slope of the pressure reading as leakoff gradually lessens the volume of fluid that is holding the fracture open, until the fracture walls meet and the pressure reverts to a decline to pore pressure
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