METHOD FOR REMEDIATING A SCREEN-OUT DURING WELL COMPLETION

摘要

A method of completing a well involving remediating a condition of screen-out that has taken place along a zone of interest. The method includes forming a wellbore, and lining at least a lower portion of the wellbore with a string of production casing and placing a valve along the production casing, wherein the valve creates a removable barrier to fluid flow within the bore. The barrier is removed by moving the valve in the event of a screen-out. This overcomes the barrier to fluid flow, thereby exposing ports along the production casing to the subsurface formation at or below the valve. Additional pumping takes place to pump the slurry through the exposed ports, thereby remediating the condition of screen-out.

主权项

1. A method of completing a well, comprising:
forming a wellbore, the wellbore comprising a bore extending into a subsurface formation; lining at least a lower portion of the wellbore with a string of production casing; placing a valve along the production casing, the valve creating a removable barrier to fluid flow within the bore; perforating the production casing along a first zone of interest within the subsurface formation, the first zone of interest residing at or above the valve; injecting a slurry into the wellbore, the slurry comprising a fracturing proppant; in response to a condition of screen-out along the first zone of interest during the injecting, pumping the slurry at a pressure sufficient to move the valve and overcome the barrier to fluid flow, thereby exposing ports along the production casing to the subsurface formation at or below the valve; and further pumping the slurry through the exposed ports, thereby remediating the condition of screen-out.