Patent ID: 9322251
Filing Date: 2016-04-26
CPC Classification: E21B

Claim Text:
1. An artificial lift system for use in a deviated wellbore extending from the surface into the earth and having reservoir fluids and a pressured gas source, comprising: a casing in the wellbore; a gas lift system configured to inject a pressured gas from the surface through a first tubing string to commingle with and lift the reservoir fluids toward the surface in said first tubing string; a down-hole pump adapted to pump reservoir fluids from said first tubing string through a second tubing string to the surface; and a packer disposed between said first tubing string and said casing, wherein said first tubing string extending through said packer and said second tubing string not extending through said packer; wherein a portion of said first tubing string contains an inner tubing string that has a first end nearest the surface and a second end farthest from the surface, wherein said inner tubing string is configured to move pressured gas from said first tubing string toward the reservoir, wherein said inner tubing string extends through said packer, wherein said first end is located above said packer and below the surface, wherein said second end is disposed to receive the reservoir fluids from the reservoir, wherein a space between the first tubing string and the inner tubing string forms an annulus configured to move the commingled pressured gas and reservoir fluids away from the reservoir while the pressured gas is moved toward the reservoir, wherein said first end is connected with said first tubing string with a bushing configured to block said annulus, wherein said second end is in fluid communication with said annulus, and wherein said first tubing string comprises an opening below said bushing and above said packer that is configured to allow communication between the wellbore and said annulus and the passing of the commingled pressured gas and reservoir fluids through said opening.