Patent ID: 8966900
Filing Date: 2015-03-03
Classification: F02G,F03G,Y02E

Abstract:
1. A method for extracting geothermal energy comprising the steps of: disposing a vertical piston system in a vertical section of a well bore having a heat exhaust region, said vertical piston system configured to move in the vertical direction relative to the earth's surface; disposing a plurality of horizontal pistons in a heat intake region of a horizontal well bore, said horizontal pistons configured to move in the horizontal direction relative to the earth's surface, wherein each horizontal piston defines a separate chamber in the heat intake region; providing fluid communication between said heat intake region and heat exhaust region; moving a working fluid between said heat intake region and said heat exhaust region, wherein said movement is at least in response to a temperature difference between said heat intake region and said heat exhaust region; coupling the vertical piston system to a generator to generate electricity in response to at least said movement of the working fluid.