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Class Information
Number: 166/177.7
Name: Wells > Agitator
Description: Apparatus comprising means for generating irregular, quick, or violent action for cleaning or stimulating flow in a well.

Patents under this class:

Patent Number Title Of Patent Date Issued
8684086 Downhole mixing tool Apr. 1, 2014
8286951 Well water aeration system Oct. 16, 2012
8251144 Flow diverter Aug. 28, 2012
8225872 Gas handling in a well environment Jul. 24, 2012
8167051 Selective agitation May. 1, 2012
8162078 Vibrating downhole tool Apr. 24, 2012
8122956 Magnetic stirrer Feb. 28, 2012
8113285 Agitated wellbore cleaning tool and method Feb. 14, 2012
7975765 Enclosed circulation tool for a well Jul. 12, 2011
7455113 Downhole impeller device Nov. 25, 2008
7314083 Slow rotation fluid jetting tool for cleaning a well bore Jan. 1, 2008
7296627 Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells Nov. 20, 2007
7293608 Liquid well stimulator Nov. 13, 2007
7086470 System and method for wellbore clearing Aug. 8, 2006
7063141 Apparatus for agitated fluid discharge Jun. 20, 2006
7011158 Method and apparatus for well bore cleaning Mar. 14, 2006
6959760 Downhole pulser Nov. 1, 2005
6877566 Method and apparatus for causing pressure variations in a wellbore Apr. 12, 2005
6863125 Device for flow and liftgas production of oil-wells (versions) Mar. 8, 2005
6705396 Method and apparatus for producing fluid cavitation Mar. 16, 2004
6619394 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom Sep. 16, 2003
6533035 Method and apparatus for stimulating well production Mar. 18, 2003
6527050 Method and apparatus for formation damage removal Mar. 4, 2003
6260628 Use of static mixing element in connection with flow of gas and liquids through a production tubing Jul. 17, 2001
6250386 Process for stimulation of oil wells Jun. 26, 2001
6230802 Method and apparatus for gravel packing a well May. 15, 2001
6116338 Inducer for increasing centrifugal pump efficiency in wells producing high viscosity crude oil Sep. 12, 2000
5285847 Water and ground water monitoring well surge block Feb. 15, 1994
5209293 Apparatus for fluidizing formation fines entrained in formation fluids entering a production well penetrating an oil-bearing formation May. 11, 1993
5190114 Flow pulsing apparatus for drill string Mar. 2, 1993
5009272 Flow pulsing method and apparatus for drill string Apr. 23, 1991
4964464 Anti-sand bridge tool and method for dislodging sand bridges Oct. 23, 1990

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