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Class Information
Number: 166/177.1
Name: Wells > Sonic device
Description: Apparatus wherein acoustic energy is used for agitating, fracturing or vibrating.










Sub-classes under this class:

Class Number Class Name Patents
166/177.2 With specific downhole feature 66


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8684076 Method and apparatus for enhancement of fracture fluid clean-up with periodic shock waves Apr. 1, 2014
8613312 Method and apparatus for stimulating wells Dec. 24, 2013
8596349 Pulse fracturing device and method Dec. 3, 2013
8567496 System and method for managing a subterranean formation Oct. 29, 2013
8555965 High frequency surface treatment methods and apparatus to extend downhole tool survivability Oct. 15, 2013
8534352 Methods and apparatus for enhanced oil recovery Sep. 17, 2013
8534353 Hydraulic actuated pump system Sep. 17, 2013
8517093 System and method for drilling hammer communication, formation evaluation and drilling optimization Aug. 27, 2013
8459351 Method and apparatus for producing shock waves in the borehole of wells filled by liquid Jun. 11, 2013
8215384 Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor Jul. 10, 2012
8157011 System and method for performing a fracture operation on a subterranean formation Apr. 17, 2012
8113278 System and method for enhanced oil recovery using an in-situ seismic energy generator Feb. 14, 2012
8069914 Hydraulic actuated pump system Dec. 6, 2011
8047282 Methods of sonically activating cement compositions Nov. 1, 2011
7980301 Method and apparatus for the dampening of shocks in the borehole of wells Jul. 19, 2011
7963324 Flow control actuation Jun. 21, 2011
7900700 Method and system for cleat characterization in coal bed methane wells for completion optimization Mar. 8, 2011
7891421 Method and apparatus for in-situ radiofrequency heating Feb. 22, 2011
7802627 Remotely operated selective fracing system and method Sep. 28, 2010
7789141 Oil recovery enhancement method Sep. 7, 2010
7584783 Surface activated downhole spark-gap tool Sep. 8, 2009
7578359 Downhole acoustic source Aug. 25, 2009
7322431 Advanced ultrasonic processor Jan. 29, 2008
7216706 Annular isolators for tubulars in wellbores May. 15, 2007
7195069 Method and apparatus for backing off a tubular member from a wellbore Mar. 27, 2007
7063144 Acoustic well recovery method and device Jun. 20, 2006
7059403 Electroacoustic method and device for stimulation of mass transfer processes for enhanced well recovery Jun. 13, 2006
6899175 Method and apparatus for seismic stimulation of fluid-bearing formations May. 31, 2005
6877566 Method and apparatus for causing pressure variations in a wellbore Apr. 12, 2005
6814141 Method for improving oil recovery by delivering vibrational energy in a well fracture Nov. 9, 2004
6496448 Transducer receiving voltage inputs, such as square waves, rich in harmonics Dec. 17, 2002
6467542 Method for resonant vibration stimulation of fluid-bearing formations Oct. 22, 2002
6390191 Method for stimulating hydrocarbon production May. 21, 2002
6015010 Dual tubing pump for stimulation of oil-bearing formations Jan. 18, 2000
6012521 Downhole pressure wave generator and method for use thereof Jan. 11, 2000
5826653 Phased array approach to retrieve gases, liquids, or solids from subaqueous geologic or man-made formations Oct. 27, 1998
5586602 Method and apparatus for shock wave stimulation of an oil-bearing formation Dec. 24, 1996
5460223 Method and system for oil recovery Oct. 24, 1995
5396955 Method to selectively affect permeability in a reservoir to control fluid flow Mar. 14, 1995
5351754 Apparatus and method to cause fatigue failure of subterranean formations Oct. 4, 1994
5234056 Sonic method and apparatus for freeing a stuck drill string Aug. 10, 1993
5109922 Ultrasonic energy producing device for an oil well May. 5, 1992
4945986 Constant head pump for sonic wave generator used in treating subsurface formations Aug. 7, 1990
4736794 Method for the sonic cementing of down hole well casings Apr. 12, 1988
4679627 Method of oil recovery Jul. 14, 1987
4674571 Method and apparatus for improving oil production in oil wells Jun. 23, 1987
4653587 Method and apparatus for the sonic cementing of wells in porous formations Mar. 31, 1987
4640360 Sonic cementing Feb. 3, 1987
4621688 Clamping jaw device for well servicing machine Nov. 11, 1986
4574888 Method and apparatus for removing stuck portions of a drill string Mar. 11, 1986

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