Open-hole packer for alternate path gravel packing, and method for completing an open-hole wellbore

摘要: Zonal isolation apparatus includes at least one packer assembly and can be used in completing an open-hole portion of a wellbore, which extends through two subsurface intervals. The zonal base pipe filter medium, together form sand screen. Each comprises mechanically set elements. Intermediate the elements is swellable element. element actuated over time presence fluid such as water, oil, or chemical. Swelling may occur should fail. also alternate flow channel(s) that serve to divert gravel pack slurry from upper interval lower intervals during packing operations. A method for wellbore using provided herein.