Patent ID: 7832482
Filing Date: 2010-11-16
Classification: E21B

Abstract:
1. A system for producing fluids from a subterranean zone, comprising: a downhole fluid lift system adapted to be at least partially disposed in a well bore, the downhole fluid lift system operable to lift fluids towards a ground surface; a downhole fluid heater adapted to be disposed in the well bore, the downhole fluid heater operable to generate heat in the well bore; and a seal between the downhole fluid lift system and the downhole fluid heater, the seal operable to selectively seal with the well bore and isolate and prevent fluid communication to a portion of the well bore uphole of the seal containing and in fluid communication with an inlet of the downhole fluid lift system from a portion of the well bore downhole of the seal containing and in fluid communication with the downhole fluid heater.