Patent ID: 9206678
Filing Date: 2015-12-08
Classification: E21B

Abstract:
1. A method for fracturing multiple zones in a wellbore, comprising: running a work string into a liner that is positioned in the wellbore, wherein a first annulus is formed between the liner and a wall of the wellbore; pumping cement through the work string into the first annulus; opening one or more first contact valves in the liner with the work string, wherein the one or more first contact valves are disposed proximate a first zone of the wellbore; flowing a fluid through the work string and the one or more first contact valves to fracture the first zone; opening one or more second contact valves in the liner with the work string, wherein the one or more second contact valves are disposed proximate a second zone of the wellbore; and flowing the fluid through the work string and the one or more second contact valves to fracture the second zone, wherein, in a single trip of the work string in the wellbore: