ClassID:

135572

E21B41/0085 - page 3 - CPC Classification

Classification description:

Equipment or details not covered by groups  -  Adaptations of electric power generating means for use in boreholes

Recent Application in this class:
#601
20160226080
2016-08-04

Downhole mud powered battery

#602
20160215579
2016-07-28

System for performing an operation within an elongated space

#603
20160208594
2016-07-21

Mobile, modular, electrically powered system for use in fracturing underground formations

#604
20160208593
2016-07-21

Mobile, modular, electrically powered system for use in fracturing underground formations

#605
20160201436
2016-07-14

Fuel cell apparatus and method for downhole power systems

#606
20160201405
2016-07-14

Active stabilization

#607
20160186522
2016-06-30

REMOTE-CONTROLLED SELF-POWERED CLAMPING SYSTEM

#608
20160177773
2016-06-23

Apparatus for extending the flow range of turbines

#609
20160177678
2016-06-23

Mobile electric power generation for hydraulic fracturing of subsurface geological formations

#610
20160177675
2016-06-23

Mobile electric power generation for hydraulic fracturing of subsurface geological formations

#611
20160168958
2016-06-16

Downhole power generator

#612
20160168957
2016-06-16

Magnetic Field Disruption For In-Well Power Conversion

#613
20160164437
2016-06-09

Piezoelectric power generation system

#614
20160160845
2016-06-09

Submersible power generators and method of operating thereof

#615
20160145975
2016-05-26

Downhole power generation system

#616
20160141577
2016-05-19

Energy Storage Device with An Encapsulated Electrode

#617
20160138391
2016-05-19

Mud hammer

#618
20160116889
2016-04-28

Optimizing power delivered to an electrical actuator

#619
20160115766
2016-04-28

Transmitting power to gas lift valve assemblies in a wellbore

#620
20160105022
2016-04-14

System and method for parallel power and blackout protection for electric powered hydraulic fracturing

#621
20160102529
2016-04-14

Electromagnetic induction generator for use in a well

#622
20160090821
2016-03-31

Downhole power generation system with alternate flow paths

#623
20160090820
2016-03-31

System and method for autonomous downhole power generation

#624
20160090819
2016-03-31

Downhole power generation system and method

#625
20160084043
2016-03-24

Downhole energy storage and conversion

#626
20160076305
2016-03-17

Method and system for directional drilling

#627
20160069166
2016-03-10

Downhole tool capable of withstanding high temperatures

#628
20160064966
2016-03-03

System and method for charging a capacitor used to power measurement-while-drilling equipment

#629
20160061019
2016-03-03

Method and system for directional drilling

#630
20160053589
2016-02-25

Electrical power generation system

#631
20160053588
2016-02-25

Electrical generator and electric motor for downhole drilling equipment

#632
20160017695
2016-01-21

Downhole actively controlled power generation mechanism

#633
20160017693
2016-01-21

Fluid-driven power generation unit for a drill string assembly

#634
20160003007
2016-01-07

System and method for managing batteries for use in a downhole drilling application

#635
20150377016
2015-12-31

Wireless power transmission to downhole well equipment

#636
20150369017
2015-12-24

Exploration drilling system and method for supplying power thereto

#637
20150361766
2015-12-17

Drilling turbine power generation

#638
20150357868
2015-12-10

Optical energy transfer and conversion system

#639
20150354322
2015-12-10

Modular hybrid low emissions power for hydrocarbon extraction

#640
20150345260
2015-12-03

Apparatus for power generation

#641
20150337606
2015-11-26

System and method for controlled slip connection

#642
20150330195
2015-11-19

Methods and systems for controlling voltage switching

#643
20150326049
2015-11-12

Power system for high temperature applications with rechargeable energy storage

#644
20150303771
2015-10-22

Downhole bladeless generator

#645
20150300129
2015-10-22

DOWNHOLE POWER SYSTEM

#646
20150292304
2015-10-15

Power cell for deepwater application

#647
20150292303
2015-10-15

PROCESS FOR SEQUESTRATION OF FLUIDS IN GEOLOGICAL FORMATIONS

#648
20150275626
2015-10-01

Drill head and device with a sliding contact electrical connection for drilling a bore in the ground

#649
20150260014
2015-09-17

Downhole power generation using a mud operated pulser

#650
20150256034
2015-09-10

Optical power transfer system for powering a remote mobility system for multiple missions

#651
20150256033
2015-09-10

Non-line-of-sight optical power transfer system for launching a spacecraft into low earth orbit

#652
20150253513
2015-09-10

Fiber optic rotary joint for use in an optical energy transfer and conversion system

#653
20150252677
2015-09-10

Flow rate responsive turbine blades and related methods

#654
20150252651
2015-09-10

Apparatus and Method to Remotely Control Fluid Flow in Tubular Strings and Wellbore Annulus

#655
20150240632
2015-08-27

Method for surveying drill holes, drilling arrangement, and borehole survey assembly

#656
20150233213
2015-08-20

Power integrated system and method for drilling rig and oil/gas production equipment

#657
20150226056
2015-08-13

Multi-use data processing circuitry for well monitoring

#658
20150218913
2015-08-06

POWER SYSTEM FOR HIGH TEMPERATURE APPLICATIONS WITH RECHARGEABLE ENERGY STORAGE

#659
20150218900
2015-08-06

DOWNHOLE TURBINE-DRIVEN SYSTEM

#660
20150211526
2015-07-30

Wireless sensor system for electric submersible pump

#661
20150204187
2015-07-23

Reliable wired-pipe data transmission system

#662
20150204171
2015-07-23

CARBON DIOXIDE ENERGY STORAGE AND ENHANCED OIL RECOVERY

#663
20150180320
2015-06-25

Variable-output generator for downhole power production

#664
20150176372
2015-06-25

Downhole power generation using hydraulic flow regulation

#665
20150162637
2015-06-11

Heater and method of operating

#666
20150159481
2015-06-11

System, apparatus, and method for monitoring a subsea flow device

#667
20150159470
2015-06-11

Mine area distributed combined cooling heating power energy system for extracting gas for coal mine

#668
20150123405
2015-05-07

Power production in a completed well using magnetostrictive materials

#669
20150114722
2015-04-30

DOWNHOLE SCREW MOTOR

#670
20150114632
2015-04-30

High-Speed, Multi-Power Submersible Pumps and Compressors

#671
20150107907
2015-04-23

Systems and methods to reduce oscillations in magnetic couplings

#672
20150107902
2015-04-23

Mud actuated drilling system

#673
20150107824
2015-04-23

POWER SYSTEM FOR DOWNHOLE TOOLSTRING

#674
20150098794
2015-04-09

Turbine-pump system bowl assembly

#675
20150098793
2015-04-09

Turbine-pump system

#676
20150096744
2015-04-09

Power supply for wired pipe with rechargeable energy storage

#677
20150091306
2015-04-02

SYSTEM AND METHOD FOR DOWNHOLE POWER GENERATION USING A DIRECT DRIVE PERMANENT MAGNET MACHINE

#678
20150090461
2015-04-02

Detachable capping device and method for an oil/gas well under blowout conditions

#679
20150068754
2015-03-12

Mobile, modular, electrically powered system for use in fracturing underground formations

#680
20150068724
2015-03-12

Mobile, modular, electrically powered system for use in fracturing underground formations

#681
20150068298
2015-03-12

Apparatus for downhole power generation

#682
20150064594
2015-03-05

Heater and supporting structure thereof

#683
20150064593
2015-03-05

Heater

#684
20150060061
2015-03-05

Heater and method of operating

#685
20150050581
2015-02-19

Power generation system

#686
20150047844
2015-02-19

Downhole supercapacitor device

#687
20150034294
2015-02-05

Submersible electrical machine and method

#688
20150027735
2015-01-29

Electrical power storage for downhole tools

#689
20150027507
2015-01-29

System and method for harvesting energy down-hole from an isothermal segment of a wellbore

#690
20150015066
2015-01-15

Method and system for control and protection of direct current subsea power systems

#691
20150007975
2015-01-08

Downhole supercapacitor device

#692
20140374088
2014-12-25

Hybrid battery for high temperature applications

#693
20140367120
2014-12-18

Downhole fuel cell with steam adsorption and pressure compensation

#694
20140354081
2014-12-04

Electrical power grid for a downhole BHA

#695
20140352981
2014-12-04

Wellbore servicing tools, systems and methods utilizing downhole wireless switches

#696
20140332235
2014-11-13

Coupled electronic and power supply frames for use with borehole conduit connections

#697
20140332202
2014-11-13

Power pumping system and method for a downhole tool

#698
20140311806
2014-10-23

GENERATOR DRIVEN BY DRILL PIPE

#699
20140265580
2014-09-18

Inertial energy generator for supplying power to a downhole tool

#700
20140262218
2014-09-18

Apparatus and method for generating power downhole and using same for performing a downhole operation

#701
20140251592
2014-09-11

Rotating magnetic field downhole power generation device

#702
20140210307
2014-07-31

Flow induced electrostatic power generator for tubular segments

#703
20140209289
2014-07-31

Remote power solution

#704
20140203174
2014-07-24

Well tool having optical triggering device for controlling electrical power delivery

#705
20140202705
2014-07-24

Flow induced electrostatic power generator for tubular segments

#706
20140184364
2014-07-03

Downhole supercapacitor device

#707
20140174733
2014-06-26

Power generation via drillstring pipe reciprocation

#708
20140167422
2014-06-19

Downhole energy harvesting method and device

#709
20140132192
2014-05-15

Power control for electrical applications over long cables

#710
20140124195
2014-05-08

Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus

#711
20140103660
2014-04-17

Systems and methods of harvesting energy in a wellbore

#712
20140102800
2014-04-17

Rotary steerable drilling system for drilling a borehole in an earth formation

#713
20140090898
2014-04-03

Casing drilling bottom hole assembly having wireless power and data connection

#714
20140083768
2014-03-27

Drilling bottom hole assembly having wireless power and data connection

#715
20140069724
2014-03-13

Turbine speed control system for downhole tool

#716
20140069639
2014-03-13

Friction reduction assembly for a downhole tubular, and method of reducing friction

#717
20140049399
2014-02-20

Power supply and voltage multiplication for submerged subsea systems based on cathodic protection system

#718
20140020886
2014-01-23

Thermally Conductive Filler Suspended by Thixotropic Agents in Lubricant Oil

#719
20130328442
2013-12-12

Magnetostrictive power supply for bottom hole assembly with rotation-resistant housing

#720
20130328316
2013-12-12

Systems and methods to harvest fluid energy in a wellbore using preloaded magnetostrictive elements

#721
20130319652
2013-12-05

Control and supply unit

#722
20130307278
2013-11-21

Energy harvesting system

#723
20130277058
2013-10-24

Flow control device, method and production adjustment arrangement

#724
20130271066
2013-10-17

Production logging instrument

#725
20130269951
2013-10-17

Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus

#726
20130260187
2013-10-03

REPLENISHABLE DOWNHOLE BATTERY

#727
20130248169
2013-09-26

Environmentally powered transmitter for location identification of wellbores

#728
20130240197
2013-09-19

Wireless downhole unit

#729
20130229142
2013-09-05

Power source for completion applications

#730
20130228373
2013-09-05

Apparatus including load driven by a motor coupled to an alternator

#731
20130153242
2013-06-20

IN-RISER POWER GENERATION

#732
20130119771
2013-05-16

Methods and Systems for a Reliable Automatic Reserve Battery Switch

#733
20130118733
2013-05-16

WELLBORE CONDITION MONITORING SENSORS

#734
20130113213
2013-05-09

Power generation at a subsea location

#735
20130112401
2013-05-09

Downhole electrical energy conversion and generation

#736
20130099500
2013-04-25

Downhole apparatus for electrical power generation from shaft flexure

#737
20130075106
2013-03-28

ELECTRICAL GENERATOR FOR A CEMENTING MANIFOLD

#738
20130061899
2013-03-14

Apparatus, system and method for generating power in a wellbore

#739
20130052043
2013-02-28

Source of power in a hydrocarbon well facility

#740
20130032403
2013-02-07

Rechargeable battery controller

#741
20130029241
2013-01-31

Energy storage system

#742
20130026978
2013-01-31

POWER SUPPLY FOR DOWNHOLE INSTRUMENTS

#743
20130026766
2013-01-31

Harvesting energy from a drillstring

#744
20130015669
2013-01-17

Method and an apparatus for obtaining energy by expanding a gas at a wellhead

#745
20130014797
2013-01-17

SUPPLYING ELECTRICAL POWER IN A HYDROCARBON WELL INSTALLATION

#746
20130000991
2013-01-03

Systems and methods to reduce oscillations in magnetic couplings

#747
20120319409
2012-12-20

Retractable power turbine and method thereof

#748
20120292909
2012-11-22

ROTATING PRESSURE REDUCTION TURBINE WITH COG WHEELS FOR A WELL STREAM HAVING A HYDRAULIC POWER TRANSMISSION FOR OPERATION OF AN ELECTRICITY GENERATOR

#749
20120279720
2012-11-08

Subsea pressure delivery system

#750
20120273235
2012-11-01

Flow-induced electrostatic power generator for downhole use in oil and gas wells

#751
20120273234
2012-11-01

Flow-induced electrostatic power generator for downhole use in oil and gas wells

#752
20120268074
2012-10-25

Power system for high temperature applications with rechargeable energy storage

#753
20120255734
2012-10-11

Mobile, modular, electrically powered system for use in fracturing underground formations

#754
20120228882
2012-09-13

Systems and methods of harvesting energy in a wellbore

#755
20120228877
2012-09-13

Systems and methods of energy harvesting with positive displacement motor

#756
20120228876
2012-09-13

Power generator for booster amplifier systems

#757
20120228875
2012-09-13

Systems and methods of harvesting energy in a wellbore

#758
20120211995
2012-08-23

Hoses principally for automatic swimming pool cleaners

#759
20120176138
2012-07-12

Reliable wired-pipe data transmission system

#760
20120139250
2012-06-07

Apparatus for downhole power generation

#761
20120112924
2012-05-10

Systems and Methods for Providing a Wireless Power Provision and/or an Actuation of a Downhole Component

#762
20120106297
2012-05-03

Downhole apparatus, device, assembly and method

#763
20120103690
2012-05-03

Drill bit with electrical power generation devices

#764
20120091732
2012-04-19

POWER GENERATING APPARATUS WITH AN ANNULAR TURBINE

#765
20120067567
2012-03-22

DOWNHOLE COMPLETION SYSTEM WITH RETRIEVABLE POWER UNIT

#766
20120049625
2012-03-01

Power limiting control for multiple drilling rig tools

#767
20120032560
2012-02-09

Apparatus and method for downhole energy conversion

#768
20120024050
2012-02-02

Method and apparatus for in-situ wellbore measurements

#769
20120017673
2012-01-26

Pressure management system for well casing annuli

#770
20120000663
2012-01-05

System, apparatus, and method for monitoring a subsea flow device

#771
20110290504
2011-12-01

Control system

#772
20110290483
2011-12-01

SPONTANEOUS SUPERCRITICAL FLUID RECOVERY AND REFINING OF HYDROCARBONS FROM HYDROCARBON-BEARING FORMATIONS APPLYING FUEL CELL GAS IN SITU

#773
20110260457
2011-10-27

Downhole torodial generator with central passage

#774
20110259639
2011-10-27

Downhole Axial Flux Generator

#775
20110233936
2011-09-29

Enhancing the effectiveness of energy harvesting from flowing fluid

#776
20110226470
2011-09-22

Systems and methods for providing wireless power transmissions and tuning a transmission frequency

#777
20110210645
2011-09-01

DOWNHOLE STATIC POWER GENERATOR

#778
20110186290
2011-08-04

Use of micro-electro-mechanical systems (MEMS) in well treatments

#779
20110170320
2011-07-14

Transmitting electric power into a bore hole

#780
20110164999
2011-07-07

POWER PUMPING SYSTEM AND METHOD FOR A DOWNHOLE TOOL

#781
20110155393
2011-06-30

Generating power in a well

#782
20110148656
2011-06-23

Downhole power generation

#783
20110143175
2011-06-16

Underwater power generation

#784
20110133465
2011-06-09

Energy generator with moving diaphragm placed inside duct

#785
20110120772
2011-05-26

Downhole assembly

#786
20110088738
2011-04-21

ENERGY GENERATING SYSTEM AND METHOD FOR GENERATING ELECTRICAL ENERGY AT A SEABED

#787
20110057449
2011-03-10

Electromagnetic harvesting of fluid oscillations for downhole power sources

#788
20110049901
2011-03-03

Device and a method for downhole energy generation

#789
20110012354
2011-01-20

Generator for fluid-driven production of electric energy and a method of making the generator

#790
20100314168
2010-12-16

Flywheel-based energy storage on a heave-compensating drawworks

#791
20100308599
2010-12-09

Energy harvesting from flow-induced vibrations

#792
20100263930
2010-10-21

Impact Powered Transmitter For Directional Drilling

#793
20100243265
2010-09-30

Drilling fluid flow diverter

#794
20100237624
2010-09-23

Impulse rotor generator

#795
20100236777
2010-09-23

Power systems for wireline well service using wired pipe string

#796
20100219646
2010-09-02

Apparatus and method for generating power downhole

#797
20100213942
2010-08-26

Wired pipe with wireless joint transceiver

#798
20100212891
2010-08-26

Swellable material activation and monitoring in a subterranean well

#799
20100206554
2010-08-19

Power transmission system for use with downhole equipment

#800
20100200243
2010-08-12

METHOD AND DEVICE

#801
20100186944
2010-07-29

Accessible downhole power assembly

#802
20100183430
2010-07-22

Turbine for driving a generator in a drill string

#803
20100163226
2010-07-01

Supercritical fluid recovery and refining of hydrocarbons from hydrocarbon-bearing formations applying fuel cell gas in situ

#804
20100147349
2010-06-17

System and method for downhole voltage generation

#805
20100133833
2010-06-03

ELECTRICAL POWER GENERATION FOR DOWNHOLE EXPLORATION OR PRODUCTION DEVICES

#806
20100133006
2010-06-03

Downhole communication devices and methods of use

#807
20100077752
2010-04-01

Methods and/or systems for magnetobaric assisted generation of power from low temperature heat

#808
20100071910
2010-03-25

METHOD AND SYSTEM FOR USING WELLBORE INSTRUMENTS WITH A WIRED PIPE STRING

#809
20100039074
2010-02-18

SMART ALTERNATOR

#810
20100038907
2010-02-18

Power Generation

#811
20100026234
2010-02-04

Power supply apparatus for electronic,electrical, and electromechanical installations

#812
20100012320
2010-01-21

METHODS AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS

#813
20100011767
2010-01-21

Steam driven turbine drive

#814
20100000793
2010-01-07

Downhole power generator and method

#815
20090322185
2009-12-31

Piezoelectric resonant power generator

#816
20090301784
2009-12-10

Constricting flow diverter

#817
20090277629
2009-11-12

Acoustic and Fiber Optic Network for Use in Laterals Downhole

#818
20090260358
2009-10-22

Thermoelectric Energy Conversion System

#819
20090256532
2009-10-15

Kinetic energy harvesting in a drill string

#820
20090250265
2009-10-08

Impact powered transmitter for directional drilling

#821
20090236149
2009-09-24

Downhole generator for drillstring instruments

#822
20090218091
2009-09-03

Downhole gas flow powered deliquefaction pump

#823
20090217960
2009-09-03

ELECTRICAL POWER SOURCE USING HEAT FROM FLUIDS PRODUCED FROM THE EARTH'S SUBSURFACE

#824
20090217664
2009-09-03

Submerged Geo-Ocean Thermal Energy System

#825
20090178802
2009-07-16

PARASITICALLY POWERED SIGNAL SOURCE AND METHOD

#826
20090173492
2009-07-09

SURFACE ACTIVATED DOWNHOLE SPARK-GAP TOOL

#827
20090169364
2009-07-02

Progressive cavity apparatus with transducer and methods of forming and use

#828
20090166045
2009-07-02

HARVESTING VIBRATION FOR DOWNHOLE POWER GENERATION

#829
20090140604
2009-06-04

Harvesting energy from flowing fluid

#830
20090134631
2009-05-28

Harvesting energy in remote locations

#831
20090133867
2009-05-28

Drillstring alternator

#832
20090126997
2009-05-21

Counterbalance enabled power generator for horizontal directional drilling systems

#833
20090107723
2009-04-30

Pulse rate of penetration enhancement device and method

#834
20090104021
2009-04-23

Turbine for power generation in a drill string

#835
20090079199
2009-03-26

ELECTRIC GENERATOR OPERATED BY RECIPROCATING WELLBORE PUMP AND MONITORING SYSTEM USED THEREWITH

#836
20090038848
2009-02-12

Peizoelectric generator particularly for use with wellbore drilling equipment

#837
20090033176
2009-02-05

SYSTEM AND METHOD FOR LONG TERM POWER IN WELL APPLICATIONS

#838
20090014175
2009-01-15

System and method for logging with wired drillpipe

#839
20090008151
2009-01-08

Rotary steerable motor system for underground drilling

#840
20080277941
2008-11-13

Generation of Electrical Power From Fluid Flows

#841
20080271923
2008-11-06

Flow hydraulic amplification for a pulsing, fracturing, and drilling (PFD) device

#842
20080247273
2008-10-09

Apparatus and methods for self-powered communication and sensor network

#843
20080238252
2008-10-02

Piezoelectric resonant power generator

#844
20080217024
2008-09-11

DOWNHOLE TOOL WITH CLOSED LOOP POWER SYSTEMS

#845
20080156477
2008-07-03

Deployment tool for well logging instruments conveyed through the interior of a pipe string

#846
20080142215
2008-06-19

Methods and apparatus for harvesting potential energy downhole

#847
20080128123
2008-06-05

Downhole power source

#848
20080121432
2008-05-29

Directional drilling control

#849
20080083529
2008-04-10

Downhole coils

#850
20080047753
2008-02-28

Downhole electric power generator

#851
20080012569
2008-01-17

Downhole Coils

#852
20070229232
2007-10-04

Drill bit transducer device

#853
20070227776
2007-10-04

Borehole telemetry system

#854
20070215342
2007-09-20

Apparatus and method for powering electrical devices along a pipeline

#855
20070194948
2007-08-23

System and method for providing electrical power downhole

#856
20070194947
2007-08-23

Downhole power generation and communications apparatus and method

#857
20070181345
2007-08-09

Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells

#858
20070151591
2007-07-05

Method and apparatus for downhole thermoelectric power generation

#859
20070144783
2007-06-28

Rotating systems associated with drill pipe

#860
20070079989
2007-04-12

Borehole generator

#861
20070062696
2007-03-22

Methods and apparatus for photonic power conversion downhole

#862
20070039728
2007-02-22

Hydrogeneration as an end product of a closed loop gaslift process employing LNG

#863
20070034385
2007-02-15

Pulse width modulated downhole flow control

#864
20060263215
2006-11-23

ROLL STABILISED UNIT

#865
20060260804
2006-11-23

Surface activated downhole spark-gap tool

#866
20060257697
2006-11-16

Fuel cell apparatus and method for downhole power systems

#867
20060243487
2006-11-02

Rotary steerable motor system for underground drilling

#868
20060213669
2006-09-28

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