61
Hendrika Cornelia Kuzee, Hendricus Wilhelmus Carolina Raaijmakers: Method for preventing deposits in oil extraction. Cooperatie Cosun U A, Young & Thompson, September 2, 2003: US06613899 (5 worldwide citation)

Carboxyl-containing fructans such as carboxymethylinulin can be successfully used to prevent deposition of scale composed of, for example, calcium, barium and strontium salts of sulphuric acid and carbonic acid in oil extraction. In the oil extraction method, 0.5-200 ppm of a carboxyl-containing fru ...


62
Brad J Challacombe: Apparatus for stimulating oil extraction by increasing oil well permeability using specialized explosive detonating cord. Bradley J Challacombe, Steins & Associates P C, May 11, 2004: US06732799 (5 worldwide citation)

Apparatus and method for explosive and chemical rehabilitation of existing oil wells' perforations and formation, to stimulate oil production therefrom, comprising a combination of detonating cord with a plurality of hardened steel tubes, disposed at predetermined distances thereabout, effectua ...


63
Kotlar Hans Kristian: Method of enhancing oil recovery. Statoilhydro Asa, Kotlar Hans Kristian, Cockbain Julian, COCKBAIN Julian, December 31, 2008: WO/2009/001098 (5 worldwide citation)

The invention provides a method of enhancing oil recovery from a subterranean hydrocarbon reservoir, said method comprising injecting into said reservoir through a matrix injection section of a well a microorganism capable of digesting oil, and recovering oil from an oil receiving section of a produ ...


64
Dean Blankenburg, Clayton Lepak, Dave Parkinson: Oil extraction method and composition for use in the method. Hydrite Chemical Co, Quarles & Brady, July 28, 2015: US09090851 (4 worldwide citation)

A composition is disclosed for aiding extraction of an emulsified oil from an oil and water emulsion. The composition includes silicon containing particles at a level of 0.1 wt. % to 30 wt. %; an emulsifying agent at a level of 1 wt. % to 30 wt. %; and water at a level of 40 wt. % to 99 wt. %. A met ...


65
Seyi A Odueyungbo: Thermal treatment system for spent hydroprocessing catalyst. Chevron U, Steven R Ellinwood, June 25, 2013: US08470252 (4 worldwide citation)

A process to upgrade heavy oil and convert the heavy oil into lower boiling hydrocarbon products is provided. The process employs a catalyst slurry comprising catalyst particles with an average particle size ranging from 1 to 20 microns. In the upgrade process, spent slurry catalyst in heavy oil is ...


66
Rodger T Marentis: Pressure regulated supercritical fluid fractionation of oil seed extraction materials. MOR Supercritical, Craig R Miles, CR Miles P C, March 27, 2012: US08142830 (4 worldwide citation)

Generally, a method of pressure regulated supercritical fluid fractionation of oil seed extraction materials which can be utilized to refine oil seed extraction material established in an amount of supercritical fluid. Specifically, a method of pressure regulated supercritical fluid fractionation of ...


67
John Nenniger, Steve Conzuorgood, Lowy Gunnewiek, Bob Reid, Emil Nenniger: Method and apparatus for testing heavy oil production processes. N Solv Corporation, Vidas Arrett & Steinkraus P A, June 1, 2010: US07727766 (4 worldwide citation)

There is disclosed a method of testing oil extraction processes including the steps of: 1) placing a sample to be tested in a sample holder which has a configurable temperature profile; 2) placing the sample holder in a pressure vessel; 3) increasing the pressure in the pressure vessel to simulate a ...


68
Richard D Kuerston, Ronald E Brown: Crude oil processing apparatus for heavy oil extraction. Phillips Petroleum Company, Laney Dougherty Hessin & Beavers, February 23, 1993: US05188709 (4 worldwide citation)

The present invention provides an apparatus for preparing and treating a heavy oil extraction solvent. A solvent fraction is separated from a crude oil and combined with a slip stream of rerun solvent taken from an extraction process solvent recycle system. The solvent fraction and rerun solvent are ...


69
Frederick D Busche, John B Rollins, Harold J Noyes, James G Bush: System and method for preparing near-surface heavy oil for extraction using microbial degradation. International Business Machines Corporation, Andrea Bauer, Hoffman Warnick, April 12, 2011: US07922893 (4 worldwide citation)

A system and method for enhancing the recovery of heavy oil in an oil extraction environment by feeding nutrients to a preferred microbial species (bacteria and/or fungi). A method is described that includes the steps of: sampling and identifying microbial species that reside in the oil extraction e ...


70
Sigmund Askestad: Drive system for turning a swivel. Norsk Hydro, Wenderoth Lind & Ponack, May 30, 1995: US05419398 (4 worldwide citation)

A system for turning a swivel aboard a vessel for oil extraction at sea includes a stationary swivel part connected to a rotary drilling rig on the vessel and one or more rotating parts connected to the vessel. The rotating swivel parts are connected to a torsionally rigid vertical frame structure v ...



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