Patent ID: 6622791
Filing Date: 2003-09-23
Classification: E21B

Abstract:
A method of recovering liquids at the surface of a well in fluid communication with a downhole formation, the liquids being recovered through a production tubing string positioned within the well, the method comprising:providing a downhole injector in fluid communication with the production tubing string; passing formation liquids through the downhole injector and through the production tubing string to the surface while preventing formation gases from entering the production tubing string; while recovering formation liquids at the surface, simultaneously substantially closing off formation gas pressure at the surface to retain formation gases in an annulus about the production tubing string and thereby in the downhole formation, such that the gas pressure acts as a driving force to pass liquids through the production tubing string and to the surface of the well; and perforating a casing in both a formation gas zone and a formation liquid zone beneath the gas zone, such that gas pressure acts as a cap on the downhole liquids to force liquids to the surface.