Patent ID: 7748443

Claim:
A down-hole lifting device for transporting produced fluid from a production zone in a wellbore to production tubing on an up-hole side of the lifting device with the aid of lift gas received from a lift gas source up-hole front the lifting device, the lifting device comprising: a packer body having an up-hole side, a down-hole side, and first and second through bores extending between the up-hole side and the down-hole side; a first piping extending down-hole from the packer body and including at least one gas outlet spaced down-hole from the packer body and opening to the production zone, the gas outlet in fluid communication with the up-hole side of the packer body; and a produced fluid inlet down-hole of the packer body and up-hole from the at least one gas outlet and in fluid communication with the production zone and the up-hole side of the packer body, wherein the first piping fluidly communicates between the up-hole side of the packer body and the at least one gas outlet via the first through bore and includes the produced fluid inlet, a first plug down-hole of the produced fluid inlet and an aperture down-hole of the first plug, and the lifting device further comprising a second piping in fluid communication with the up-hole side of the packer body and the first piping though the aperture via the second through bore.