×

Extraction of hydrocarbons in situ from underground hydrocarbon deposits

  • US 4,008,762 A
  • Filed: 02/26/1976
  • Issued: 02/22/1977
  • Est. Priority Date: 02/26/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of extracting hydrocarbons in situ from a selected portion of an underground hydrocarbon deposit such as oil shale, comprisingforming a quasi-toroidal conductor arrangement in the deposit substantially to envelope the said selected portion,applying alternating current of selected voltage, amperage and frequency to the conductor arrangement to heat the selected portion by induction heating to a temperature sufficient to vaporize a portion of at least one of the hydrocarbon constituents thereof, andextracting a portion of at least one released hydrocarbon constituent of the deposit by means of a conduit extending from the deposit in the vicinity of the selected portion thereof to the earth'"'"'s surface.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×