Patent ID: 8413726

Claim:
A process for conveying fluid into a subterranean well comprising: injecting a pressurized gas into the annulus defined between a tubing string positioned in a subterranean well and casing secured in said well, through an internal flow path defined through a packer assembly secured to said tubing string intermediate the length thereof, into the interior of said tubing string below said packer assembly, through an orifice of a check valve positioned within said tubing string below said packer assembly, and through the end of said tubing string and into the annulus defined between the tubing string and casing below the packer; and producing fluid from a subterranean region penetrated by the well via the annulus between the tubing string below the packer assembly and the casing, an internal annular flow path through the packer assembly defined between said internal flow path and said packer assembly, and the interior of the tubing string above the packer assembly.