Patent ID: 7934563
Filing Date: 2011-05-03
Classification: E21B

Abstract:
1. A method for producing products from a subterranean reservoir from an existing generally vertical wellbore, the method comprising the steps of: lowering, positioning and securing a reverse whipstock in said wellbore; securing a tube from the surface to a pull tube which extends above, through and below the reverse whipstock; pumping fluid from the surface through said tube from the surface and through a U-tube device below said pull tube and said reverse whipstock; drilling at least one inverted drainhole with a drill mechanism using force from said pumping fluid, wherein the drilling direction for the drainhole is less than 90 degrees from vertical pulling said pull tube upward vertically toward the surface while pumping said fluid; completing the wellbore and said inverted drainhole to form a producing flow path to allow fluids and solids to flow by gravity from the subterranean reservoir into the wellbore; lowering said pull tube in order to lower said drill mechanism out of said inverted drainhole to permit removal from said wellbores; and allowing said fluids and solids to flow or be pumped to the earth's surface up the wellbore.