ENHANCED HYDROCARBON RECOVERY FROM MULTIPLE WELLS BY ELECTRICAL RESISTIVE HEATING OF OIL SAND FORMATIONS

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United States of America Patent

APP PUB NO 20140096953A1
SERIAL NO

13644624

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention is a method and apparatus for enhanced recovery of petroleum fluids from the subsurface by electrical resistive heating of the oil sand formation and the heavy oil and bitumen in situ, by electrically energizing vertical inclusion planes containing electrically conductive proppant. The inclusion is propagated into a portion of the formation having a Skempton's B parameter of greater than 0.95 exp(−0.04 p′)+0.008 p′, where p′ is a mean effective stress in MPa at the depth of the inclusion. Multiple propped vertical inclusions at various azimuths are constructed from multiple wells. Electrodes are placed in the wells in electrical contact with the inclusions and an alternating direction current is passed through the proppant. By electrically resistive heating of the inclusion, the formation is heated by conduction and associated hydrocarbon fluids are lowered in viscosity and drain by gravity back to the well and produced to the surface. By controlling the reservoir temperature and pressure, a particular fraction of the in situ hydrocarbon reserve is extracted and water inflow into the heated zone is minimized.

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Patent Owner(s)

Patent OwnerAddress
GEOSIERRA LLC3730 CHAMBLEE TUCKER RD ATLANTA GA 30341

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  • 2012 Application Filing Year
  • E21B Class
  • 2968 Applications Filed
  • 2659 Patents Issued To-Date
  • 89.59 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20122013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hocking, Grant Alpharetta, US 54 801

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  • 2 Citation Count
  • E21B Class
  • 5.02 % this patent is cited more than
  • 11 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges575652437160271917171573801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0255075100125150175200225250275300325350375400425450475500525550575600

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