Disclosed is a gravity-drainage assisted steam flooding process for the recovery of all from thin viscous heavy oil reservoirs using a single horizontal wellbore. Steam is injected through a fully or partially insulated tubing to exit at or near the toe of a long horizontal well penetrating a viscous...http://www.google.de/patents/US5626193?utm_source=gb-gplus-sharePatent US5626193 - Single horizontal wellbore gravity drainage assisted steam flooding process
