Patent ID: 9016379
Filing Date: 2015-04-28
Classification: E21B

Abstract:
1. A method of fracing a wellbore, comprising: sealing a tubular within a wellbore at two locations and defining an annular space between the tubular, the wellbore and two seals; opening at least two ports providing fluidic communication between an inside of the tubular and the annular space; flowing fluid from inside the tubular to the annular space through a first of the at least two ports; flowing fluid from the annular space to inside of the tubular through a second of the at least two ports during times that both of the at least two ports are open and fluid is flowing from inside the tubular to the annular space through the first of the at least two ports; closing the second of the at least two ports; and pressuring the annular space through the first of the at least two ports.