ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,069, issued on July 29, was assigned to AFFIN AS (Notodden, Norway).
"Method for adapting an oil and gas production well of a depleted oil and gas reservoir into a geothermal energy recovery system and the resulting system" was invented by Helge Brandsaeter (Hamresanden, Norway) and Harald Furu (Oslo, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "The method and the system are related to means for extraction of geothermal energy from deep wells having been used for oil or gas production. The extracted geothermal energy may then in turn be used in generation of electricity. A first aspect of the invention is a geothermal energy recovery system...