1
Clauset Jr Alvin O, Hoyt Donald L, Hall Jr Russell W: Means and method for automatically determining the interface positions of an injection fluid in a petroleum or gas reservoir using an electrolytic model of the reservoir. Texaco, August 15, 1972: US3684872 (6 worldwide citation)

An insulated grid, having four electrode probes at each intersection, overlays an analog model, using an electrolytic solution, of a petroleum or gas reservoir so that some or all of the probes are immersed in the electrolytic solution. Electrodes representing an injection well and a withdrawal well ...


2
Allen Joseph C, Bednarski Valery N, Hall Jr Russell W: Oil recovery by a combination of solution gas drive and waterflooding. Texaco, May 25, 1971: US3580335 (4 worldwide citation)

Improved oil recovery from an oil-bearing reservoir is obtained by a combination of solution gas drive and water flooding whereby the reservoir is produced by solution gas drive until the pressure of the reservoir is reduced below the bubble point pressure and a critical gas saturation is establishe ...