Enhancing water recovery in subterranean wells with a cryogenic pump

An apparatus, comprising:

• at least one cryogenic fluid pump connected on an intake to at least one cryogenic fluid, the at least one cryogenic fluid pump having a discharge hydraulically connected to at least one wellbore;
• at least one injection wellbore hydraulically connected from a surface to at least one subterranean reservoir;
• a first conduit located within the at least one wellbore, wherein the first conduit has a proximal end at the surface and a distal end disposed inside the at least one wellbore;
• a second conduit disposed within the first conduit in the at least one wellbore,
• wherein the second conduit has an outer diameter smaller than an inner diameter of the first conduit,
• wherein the second conduit has a proximal end at the surface and has a distal end disposed inside the first conduit below the surface,
• wherein fluid passes from the proximal end at the surface to the distal end at the at least one wellbore and into the at least one subterranean reservoir through a hole in the first conduit, and
• wherein the proximal end of the second conduit is hydraulically connected to the discharge of the at least one cryogenic pump;
• a sealing means located on or near the distal end of the second conduit wherein the sealing means forms a hydraulic seal between an annular space formed by the inner diameter of the first conduit disposed in the at least one wellbore and the outer diameter of the second conduit;
• and
• connection means forming at least one hydraulically-sealed fluid path between a source of the cryogenic fluid, the at least one cryogenic pump fluid discharge, the inner diameter of the second conduit located within the first conduit, and the at least one subterranean reservoir.