1
Thomas D Elson, Ralph S Millhone: Foam gravel packing in highly deviated wells. Chevron Research Company, G W Wasson, Lewis S Gruber, Edward J Keeling, July 17, 1984: US04460045 (15 worldwide citation)

A method for packing particulate material in the annulus surrounding a liner in a subsurface well having a substantial deviation from vertical. Foam carrier fluid is employed for placing the particulate material. The geometry of the apparatus at the location where the material is to be placed is des ...


2
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.


3
Tanh V Nguyen, C Brent Davenport, Christopher E Stevens, John C Reis, Ralph S Millhone: Steam injection profiling. Chevron Research Company, S R La Paglia, E J Keeling, April 4, 1989: US04817713 (13 worldwide citation)

An improved method and apparatus for determining injection profiles in a steam injection well is disclosed. The mass flow rate of steam entering the well is measured. A well logging tool is then used to measure temperature and/or pressure profiles within the perforated zone of the well. A liquid pha ...


4
Tanh V Nguyen, C Brent Davenport, Christopher E Stevens, John C Reis, Ralph S Millhone: Steam injection profiling. Chevron Research Company, Edward J Keeling, Robert D Touslee, September 25, 1990: US04958684 (8 worldwide citation)

An improved method and apparatus for determining injection profiles in a steam injection well is disclosed. The mass flow rate of steam entering the well is measured. A well logging tool is then used to measure temperature and/or pressure profiles within the perforated zone of the well. A liquid pha ...


5
Thomas D Elson, Ralph S Millhone: Steam injection well gravel pack material of sintered bauxite. Chevron Research Company, Lewis S Gruber, Edward J Keeling, August 27, 1985: US04537254 (5 worldwide citation)

A packing material useful in a gravel pack for open or cased wells or in a prepack for use in steam or hot fluid injection and production wells. The packing material is a material which is insoluble in high temperature caustic fluids and subsurface formation fluids. Sintered bauxite is a claimed mat ...


6
Thomas D Elson, Ralph S Millhone: Steam injection well gravel prepack material of sintered bauxite. Chevron Research Company, Lewis S Gruber, Edward J Keeling, October 22, 1985: US04548269 (4 worldwide citation)

A packing material useful in a gravel pack for open or cased wells or in a prepack for use in steam or hot fluid injection and production wells. The packing material is a material which is insoluble in high temperature caustic fluids and subsurface formation fluids. Sintered bauxite is a claimed mat ...


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