| Patents for E21B 28 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production (888) |
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| 01/03/2013 | US20130000886 Sonic oil recovery apparatus for use in a well |
| 01/02/2013 | CN202645483U Compound anti-blockage device |
| 12/26/2012 | CN202628036U Cavitation-type automatically-unlocked downhole string descaling device |
| 12/19/2012 | CN202611641U Novel vibration oil extraction device |
| 12/12/2012 | CN202596632U High temperature hydraulic double-click device |
| 12/12/2012 | CN102817568A Method for exploiting crude oil from heavy oil reservoir by using borehole seismic auxiliary gas foam flooding |
| 12/12/2012 | CN102817567A Underground repetitive shock irritation device and shock irritation method for oil and gas well drilling |
| 12/06/2012 | US20120305240 System and Method for Ultrasonically Treating Liquids in Wells and Corresponding Use of Said System |
| 12/05/2012 | CN202578598U Oil well vibration swabbing production increase device |
| 11/27/2012 | CA2558318C Providing a local response to a local condition in an oil well |
| 11/22/2012 | WO2012158575A2 Vortex controlled variable flow resistance device and related tools and methods |
| 11/22/2012 | US20120292016 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| 11/22/2012 | US20120292015 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods |
| 11/22/2012 | CA2833767A1 Vortex controlled variable flow resistance device and related tools and methods |
| 11/15/2012 | WO2012076401A3 Resonance enhanced rotary drilling module |
| 11/14/2012 | CN1940250B Active permanent-magnetic vibrator and block-proof and output-increasing method for oil well |
| 11/07/2012 | CN101525983B Oil extraction reinforcing method |
| 10/31/2012 | CN102758588A Vibrator for coaxial type audio frequency physical exploring drill |
| 10/24/2012 | CN102747974A Well drilling vibrator of horizontal well |
| 10/04/2012 | US20120247757 Downhole Oscillator |
| 10/03/2012 | CN102704877A Composite anti-blockage device |
| 10/03/2012 | CN102704842A Hydro-oscillator for well drilling |
| 10/03/2012 | CN101560876B Multifunctional processor for liquid generated underground |
| 09/27/2012 | WO2012128759A1 Well tool assemblies with quick connectors and shock mitigating capabilities |
| 09/26/2012 | CN102691487A Complex wave pipe |
| 09/13/2012 | WO2012120403A1 Mechanical force generator for a downhole excitation apparatus |
| 09/13/2012 | CA2828675A1 Mechanical force generator for a downhole excitation apparatus |
| 09/11/2012 | CA2692683C Oscillating fluid flow in a wellbore |
| 09/05/2012 | CN202417302U Vibrating drilling type impact digging drilling machine |
| 08/23/2012 | US20120211225 Method and apparatus for enhancement of fracture fluid clean-up with periodic shock waves |
| 08/22/2012 | CN202391365U Vibration excitation device for drilling fluid vibrating screen |
| 08/21/2012 | CA2543423C Running and cementing tubing |
| 08/15/2012 | CN202381047U Autooscillation oil extraction device for oil field pumping well |
| 08/14/2012 | US8240401 System and method for damping vibration in a drill string |
| 07/19/2012 | US20120181030 Goat head type injection block for fracturing trees in oilfield applications |
| 07/18/2012 | CN202338251U 辅助节流器解封的震击器 Auxiliary restrictor unsealed jars |
| 07/17/2012 | US8220537 Pulse fracturing device and method |
| 07/12/2012 | US20120175107 Method and apparatus for producing shock waves in the borehole of wells filled by liquid |
| 07/11/2012 | CN202325340U 撞击式多频振动解堵采油器 Percussive multi-frequency vibration deplugging oil filter |
| 07/11/2012 | CN202325339U 调幅震荡防蜡降粘增油装置 AM shocks increase viscosity paraffin oil installations |
| 07/11/2012 | CN102575498A Resonance enhanced rotary drilling |
| 07/11/2012 | CN102568747A Donwhole ultrasonic matching inductor and operation and construction system thereof |
| 07/05/2012 | US20120168151 System and method for managing a subterranean formation |
| 06/28/2012 | WO2012083413A1 Vibration tool |
| 06/28/2012 | US20120160476 Vibration tool |
| 06/28/2012 | CA2802917A1 Vibration tool |
| 06/20/2012 | EP2464807A1 Resonance enhanced rotary drilling |
| 06/14/2012 | CA2819932A1 Resonance enhanced rotary drilling module |
| 06/13/2012 | CN102493768A High-frequency pulsed jet flow resonance well drilling device and well drilling method thereof |
| 05/31/2012 | US20120132416 Method, system and apparatus for synergistically raising the potency of enhanced oil recovery applications |
| 05/30/2012 | CN202249765U Resonant well drilling device |
| 05/23/2012 | CN101839116B Underground ultrasonic oil-production transducer with matching device |
| 05/09/2012 | CN202215174U Near-well blockage removing device for unconsolidated sandstone heavy oil reservoir |
| 05/02/2012 | CN102434121A Underground low-frequency swabbing vibration unplugging device and application method thereof |
| 05/01/2012 | US8167037 Method and device for feeding liquefied carbon-dioxide gas into an aquifer deep underground |
| 04/25/2012 | CN102425372A 振动钻进式冲挖钻机 Vibration punching and drilling rig drilling |
| 04/24/2012 | US8162078 Vibrating downhole tool |
| 04/19/2012 | WO2012050542A1 Device for increasing in situ rock permeability |
| 04/17/2012 | US8157006 Telescopic fracturing isolation sleeve |
| 04/10/2012 | US8151874 Thermal recovery of shallow bitumen through increased permeability inclusions |
| 03/22/2012 | WO2011098422A3 System and method for ultrasonically treating liquids in wells and corresponding use of said system |
| 03/15/2012 | US20120061077 Sonic Enhanced Oil Recovery System and Method |
| 03/14/2012 | CN102373901A Unblocking controller for oil-water well |
| 03/07/2012 | EP2426311A2 Method and assembly for recovering oil using elastic vibration energy |
| 03/07/2012 | EP2425084A2 Method and apparatus for applying vibrations during borehole operations |
| 02/29/2012 | CN202152635U 一种钻柱轴向振荡工具 One kind of drill string axial oscillation Tools |
| 02/23/2012 | US20120043075 Method and assembly for recovering oil using elastic vibration energy |
| 02/14/2012 | US8113278 System and method for enhanced oil recovery using an in-situ seismic energy generator |
| 01/04/2012 | CN202100238U Underground 360-degree bit-rotating and descaling sampler |
| 01/04/2012 | CN202100232U Excitation rubber plug |
| 01/04/2012 | CN102305040A Near-well de-plugging device for loose sand heavy oil reservoir |
| 01/04/2012 | CN102305021A Experimental method for simulating dynamic mechanics characteristic of underground drilling rig of air well drilling |
| 01/03/2012 | CA2663004C Method and apparatus to vibrate a downhole component |
| 12/28/2011 | CN202090834U 一种水动震动器 A water moving vibrator |
| 12/27/2011 | US8082989 Method for impulse stimulation of oil and gas well production |
| 12/22/2011 | WO2011157740A1 Method employing pressure transients in hydrocarbon recovery operations |
| 12/22/2011 | CA2801640A1 Method employing pressure transients in hydrocarbon recovery operations |
| 12/21/2011 | CN202081871U 解堵强汲采油器 Drain oil filter plugging strong |
| 12/21/2011 | CN102287137A 自激共振钻井装置及其钻井方法 Self-excited resonance drilling rigs and drilling method |
| 12/06/2011 | US8069914 Hydraulic actuated pump system |
| 12/01/2011 | WO2011064375A3 System and method for increasing production capacity of oil, gas and water wells |
| 11/24/2011 | WO2011145979A1 Method for treating a productive formation and borehole equipment for the implementation of same |
| 11/23/2011 | CN102251755A Vibration exciting rubber stopper |
| 11/22/2011 | US8061421 Borehole seismic pulse generation using rapid-opening valve |
| 09/27/2011 | CA2579245C Method of intensification of natural gas production from coal beds |
| 09/22/2011 | WO2011070143A3 System, apparatus and method for stimulating wells and managing a natural resource reservoir |
| 09/21/2011 | CN102191915A Resonant pulse vibrating drilling device |
| 09/13/2011 | CA2689038C Apparatus and method for creating pressure pulses in a wellbore |
| 08/31/2011 | CN201953333U 一种油水井防垢增注声波器 An oil by injection wells scale sonic device |
| 08/24/2011 | CN201943619U 一种井下振动固井装置 A downhole vibration cementing unit |
| 08/18/2011 | WO2011070142A3 Method and apparatus for stimulating wells |
| 08/18/2011 | US20110198093 Acoustic downhole tool with rubber boot protected by expandable sleeve |
| 08/18/2011 | US20110198090 Device and Method for Affecting the Flow of Fluid in a Wellbore |
| 08/18/2011 | CA2785787A1 Use of an ultrasonic transducer and a system and method for treating liquids in wells |
| 08/16/2011 | US7997357 System and method for damping vibration in a drill string |
| 08/16/2011 | CA2439095C Integrated bitumen production and gas conversion |
| 07/21/2011 | US20110174490 System and method for performing a fracture operation on a subterranean formation |
| 07/19/2011 | US7980301 Method and apparatus for the dampening of shocks in the borehole of wells |
| 07/11/2011 | CA2689949A1 Down hole apparatus for generating a pulsing action |
| 06/30/2011 | US20110155367 Fracturing isolation sleeve |