CONTROLLED PLACEMENT OF PROPPANT WHILE FRACTURING

摘要

The present invention includes a method for providing fractures (105) from a wellbore in a formation (122), the method including the steps of: providing a wellbore into the formation; providing at least one controllable sleeve valve (104) incorporated into a casing (102) within the wellbore; providing a sensor (114) to determine a flow rate of fluids passing through the controllable sleeve valve; injecting into the wellbore a fluid at a pressure sufficient to initiate and propagate a fracture in the formation juxtaposed to the sleeve valve; including a proppant material in the fluid; determining, in real time, the amount of proppant that has entered the fracture juxtaposed to the sleeve valve; and closing the sleeve valve when a predetermined amount of proppant has entered the fracture.