1
Luther T Porter: Advancing heated annulus steam drive. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, July 17, 1984: US04460044 (209 worldwide citation)

A method is disclosed for producing viscous petroleum from subsurface deposits. The method employs a vertical well and a horizontal well through the petroleum deposit. A combination of injection procedures through the horizontal and vertical well heat the viscous petroleum in the annulus around the ...


2
S O Hutchison: Concentric insulated tubing string. Chevron Research Company, G W Wasson, Edward J Keeling, L S Gruber, October 16, 1984: US04477106 (39 worldwide citation)

An improved insulated tubing string with insulated coupling formed of concentric tubing members insulated from each other to prevent heat from the inner tubing from being conducted to and through the outer tubing. The coupling joins the outer tubing of successive tubing assemblies to provide additio ...


3
Stanley O Hutchison: Concentric tubing having bonded insulation within the annulus. Chevron Research Company, D A Newell, E J Keeling, L S Gruber, June 12, 1984: US04453570 (38 worldwide citation)

An insulated concentric tubing well element having an inner tubing and an outer tubing with a substantially solid insulating material in the annulus between the inner and outer tubing. A bonding material fills the voids in the annulus and the surface of the solid insulating material. The bonding mat ...


4
S O Hutchison: Concentric insulated tubing string. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, July 17, 1984: US04459731 (37 worldwide citation)

An improved insulated tubing string with insulated coupling formed of concentric tubing members insulated from each other to prevent heat from the inner tubing from being conducted to and through the outer tubing. The coupling joins the outer tubing of successive tubing assemblies to provide additio ...


5
John H Duerksen: Steam, noncondensable gas and foam for steam and distillation drive _in subsurface petroleum production. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, December 18, 1984: US04488598 (31 worldwide citation)

A method is disclosed for increased recovery of crude petroleum from a subsurface formation containing petroleum deposits. The method combines steam and gas distillation drive using foam to divert the steam/gas and to establish a thermal barrier against heat loss into the surrounding formations. A n ...


6
Elmer L Thomas: Free standing transmitting microphone. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, February 28, 1984: US04434507 (16 worldwide citation)

A free standing transmitting microphone comprising a hollow holder for enclosing a transmitter and a microphone on a base. A cover of conductive material above the holder functions as an antenna for the transmitter. An acoustic pathway between the holder and the cover directs sounds to the microphon ...


7
Thomas D Elson, Ralph S Millhone: Foam gravel packing. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, March 27, 1984: US04438815 (14 worldwide citation)

A method of gravel packing a subsurface well is disclosed wherein particulate material is fluidized in a gas/liquid foam carrier fluid and transported to the subsurface where the particulate material forms the gravel pack and the foam carrier fluid returns to the surface.


8
Stanley O Hutchison: Foam and particulate material with steam for permeability alteration in subsurface formations. Chevron Research Company, D A Newell, E J Keeling, L S Gruber, September 11, 1984: US04470462 (10 worldwide citation)

A method is disclosed for altering the permeability of a gravity override path through a subsurface earth formation resulting from hot fluid (steam) injection into the subsurface formation. The method includes adding selected sized particulate material to a foam and injecting the foam into the gravi ...


9
Stephen W Nicksic: Method for modifying electron spin resonance signals from hydrocarbon crude. Chevron Research Company, D A Newell, G W Wasson, L S Gruber, November 15, 1983: US04415671 (7 worldwide citation)

Method for enhancing electron spin resonance signals from crude petroleum by contacting the crude petroleum with a chemical which effects the population of free radical asphaltenes in the crude petroleum. The enhancement is in a positive sense when the chemical is a halogen and particularly iodine. ...


10
Alfred J Jessel: Engine intake valve with heat pipe. Chevron Research Company, G W Wasson L S Gruber Edward J Keeling, May 29, 1984: US04450798 (4 worldwide citation)

An internal combustion engine intake valve with an internal heat pipe. The valve stem and valve head are hollow and have a wicking material fixed to the internal hollow surface. A coolant material is contained within the hollow valve. A heat exchanger is provided on the outer surface of the stem at ...