Robert P. Hendrick
Engineering in Lawton, OK
License number
Louisiana PE.0010555
Issued Date
Oct 11, 1966
Category
Civil Engineer
Type
Civil Engineer
Address
Address
PO Box 145, Lawton, OK 73502
Professional information
Recovery Of Hydrocarbons By In Situ Thermal Extraction
US Patent:
3954140, May 4, 1976
Filed:
Aug 13, 1975
Appl. No.:
5/604299
Inventors:
Robert P. Hendrick - Lawton OK
International Classification:
E21B 4324
US Classification:
166272
Abstract:
Hydrocarbons are recovered from a subterranean formation by providing a plurality of generally horizontal boreholes in the formation. The boreholes are vertically spaced across the thickness of the formation and extend from the top to the bottom thereof. Selected boreholes are heated by means of an external source to drive off hot hydrocarbon gases. The hot gases are fed to selected, unheated boreholes to effect a preheating of the selected boreholes and to cool the hot gases prior to their recovery from the formation.