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
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 ...


65
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 ...


66
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 ...


67
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 ...


68
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 ...


69
Arnold Marcel Leas: Converting solid fuels to gaseous and liquid fuels. Edward E Dyson, John J Byrne, February 15, 1977: US04008145 (4 worldwide citation)

A process for producing gaseous and liquid fuels from solid fuels by oil extraction, cracking in the presence of hot sand and treatment of products and byproducts to essentially eliminate pollution.


70
Prouvost Laurent, Economides Michael: Matrix treatment process for oil extraction applications.. Pumptech, October 12, 1988: EP0286152-A1 (4 worldwide citation)

Using the invented procedure, a curve representing pressure as a function of time is recorded in real time and then compared with the theoretical curve. The difference is attributed to the skin factor and the matrix treatment can thus be adjusted in real time until it reaches the desired skin value. ...



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