1
Bruce W Davis: In situ chemical stimulation of diatomite formations. Chevron Research Company, S R La Paglia, E J Keeling, V A Norviel, May 9, 1989: US04828031 (230 worldwide citation)

An improved method of recovering oil from diatomite is described. A solvent is injected into the diatomite followed by an aqueous surface active solution. The aqueous surface active solution contains a diatomite/oil water wettability improving agent and an oil/water surface tension lowering agent. T ...


2
Max S Juprasert, Bruce W Davis: Heavy oil well stimulation composition and process. Chevron U, Burns Doane Swecker & Mathis L, August 24, 1999: US05942469 (22 worldwide citation)

A composition for and an improved process of, enhancing petroleum recovery from a petroleum reservoir by injecting said composition into the reservoir through a wellbore are provided. The aqueous composition is derived from a concentrate which includes a defoaming agent, a demulsifying agent, and op ...


3
Bruce W Davis, Gregory E Stoltz, Algert J Maldanis: Configurable cashbox. Agent Systems, Fulbright & Jaworski L, May 9, 2000: US06059090 (22 worldwide citation)

A cashbox having a configurable note to coin storage area ratio is disclosed. Accordingly, the cashbox may be adjusted to accept a larger or smaller number of notes and a smaller or larger number of coins, respectively, depending on the circumstances of deployment of the configurable cashbox. Prefer ...


4
Bruce W Davis: Process for recovering hydrocarbons from a diatomite-type ore. Chevron Research Company, D A Newell, E J Keeling, A Stephen Zavell, February 15, 1983: US04374023 (20 worldwide citation)

A process for recovering hydrocarbons from a diatomite-type ore which comprises contacting the diatomite ore with a C.sub.4 -C.sub.10 alcohol and thereafter contacting the diatomite ore-alcohol mixture with an aqueous alkaline solution to separate a hydrocarbon-alcohol phase and an alkaline aqueous ...


5
Bruce W Davis: Method and apparatus for field measurement of interfacial tension between immiscible fluids. Chevron Research Company, R L Freeland Jr, G W Wasson, April 8, 1980: US04196615 (20 worldwide citation)

A tensiometer apparatus for use in the field, for instance at the site of an oil well, for measuring the interfacial tension between two immiscible fluids, for instance oil and water, wherein a droplet of one fluid is caused to move under the force of gravity through the second fluid and a character ...


6
Bruce W Davis: In-situ process for recovering hydrocarbons from a diatomite-type formation. Chevron Research Company, S R LaPaglia, E J Keeling, A Stephen Zavell, December 4, 1984: US04485871 (17 worldwide citation)

An in-situ process for recovering hydrocarbons from a diatomite-type formation which comprises contacting the diatomite formation with a C.sub.4 -C.sub.10 alcohol and thereafter displacing the hydrocarbon-alcohol mixture with an aqueous alkaline solution towards a production well. The aqueous alkali ...


7
Max S Juprasert, Bruce W Davis: Heavy oil well stimulation composition and process. Chevron U, Burns Doane Swecker & Mathis L, August 20, 1996: US05547022 (13 worldwide citation)

A composition for, and an improved process of, enhancing petroleum recovery from a petroleum reservoir by injecting said composition into the reservoir through a wellbore are provided. The aqueous composition is derived from a concentrate which includes a defoaming agent, a demulsifying agent, and o ...


8
Bruce W Davis: Polydialkylsilalkylene polymer useful in enhanced oil recovery using carbon dioxide flooding. Chevron Research Company, S R LaPaglia, E J Keeling, E A Schaal, August 1, 1989: US04852651 (11 worldwide citation)

A polymer is disclosed that is useful in increasing the viscosity of carbon dioxide. That polymer comprises a polydialkylsilalkylene polymer; wherein the dialkyl group is preferably dimethyl, methylethyl, or diethyl; and the alkylene group is preferably ethylene or methylene. Preferably, the polymer ...


9
Bruce W Davis: Polysilalkylenesilane polymer useful in enhanced oil recovery using carbon dioxide flooding. Chevron Research and Technology Company, Edward J Keeling, Ernest A Schaal, January 14, 1992: US05080169 (5 worldwide citation)

A polymer is disclosed that is useful in increasing the viscosity of carbon dioxide. That polymer comprises a polysilalkylenesilane polymer, preferably polydimethylsilmethylenedimethylsilane. That polymer can be used in a method for recovering oil from an underground oil-bearing earth formation pene ...


10
Bruce W Davis: Organosilicon polymer having nonrandom crosslinkages useful in enhanced oil recovery using carbon dioxide flooding. Chevron Research Company, Edward J Keeling, Ernest A Schaal, February 5, 1991: US04989674 (4 worldwide citation)

A polymer is disclosed that is useful in increasing the viscosity of carbon dioxide. That polymer comprises an organosilicon polymer having nonrandom crosslinkages that enhance backbone rigidity. Preferably, that polymer is a polyalkylsilsesquioxane. That polymer can be used in a method for recoveri ...