ClassID:

135544

E21B36/001 - CPC Classification

Classification description:

Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones Cooling arrangements

Recent Application in this class:
#1
20260117609
2026-04-30

DOWNHOLE FLUID SEPARATION FOR DRILLING A WELL IN A HOT SUBTERRANEAN ZONE

#2
20260117596
2026-04-30

HYDROJETS ROTARY DRILL BIT WITH VOLUMETRIC COOLING

#3
20260063017
2026-03-05

SYSTEMS AND METHODS FOR DOWNHOLE POWER GENERATION

#4
20260063002
2026-03-05

COOLING OF ELECTROCRUSHING DRILL ASSEMBLY

#5
20260036020
2026-02-05

CRYOGENIC COOLANT FLOW MANAGEMENT FOR DOWNHOLE SUPERCONDUCTING CABLE

#6
20250389174
2025-12-25

ELECTRIC SUBMERSIBLE PUMP WITH ACTIVE COOLING

#7
20250376911
2025-12-11

SYSTEMS AND METHODS FOR RECOVERING AMMONIA FROM A SUBSURFACE FORMATION

#8
20250369311
2025-12-04

USING FLUID PILL FOR HEAT TRANSFER DOWNHOLE

#9
20250326963
2025-10-23

DRILLING WITH WATER-BASED MUD INCLUDING MULTIPLE CLAYS

#10
20250215768
2025-07-03

USING FLUID PILL FOR HEAT TRANSFER DOWNHOLE

#11
20250191816
2025-06-12

SUPERCONDUCTING CABLES FOR ELECTRICAL SUBMERSIBLE PUMP MOTORS

#12
20250179901
2025-06-05

EXTRACTION AND INTEGRATION OF WASTE HEAT FROM ENHANCED GEOLOGIC HYDROGEN PRODUCTION

#13
20250164738
2025-05-22

LENS DRIVING APPARATUS

#14
20250146713
2025-05-08

Forming High-Efficiency Geothermal Wellbores

#15
20250059839
2025-02-20

DRILLING FLUID CONDITIONING SYSTEMS AND METHODS

#16
20250034947
2025-01-30

COOLING FOR GEOTHERMAL WELL DRILLING

#17
20240376796
2024-11-14

DOWNHOLE APPARATUS AND METHOD FOR OPERATIONS INVOLVING DELIVERY AND HARDENING OF SETTABLE MATERIALS

#18
20240360734
2024-10-31

Casing a wellbore in magma

#19
20240344427
2024-10-17

MODULAR INTEGRATED COOLING SYSTEM

#20
20240237535
2024-07-11

SYSTEMS AND METHODS FOR MANAGING TEMPERATURES IN WELLBORES

#21
20240237534
2024-07-11

SYSTEMS AND METHODS FOR DOWNHOLE POWER GENERATION

#22
20240228868
2024-07-11

METHOD FOR MULTISTAGE FRACTURING OF A GEOTHERMAL WELL

#23
20240209844
2024-06-27

Systems and methods for generation of electrical power in an organic rankine cycle operation

#24
20240209253
2024-06-27

Electro-Hydrofracturing Using Electrically Conductive Proppants and Related Methods

#25
20240134146
2024-04-25

Lens driving apparatus

#26
20240133267
2024-04-25

SYSTEMS AND METHODS FOR MANAGING TEMPERATURES IN WELLBORES

#27
20240125198
2024-04-18

Borehole sealing with temperature control, method, and system

#28
20240125197
2024-04-18

Borehole sealing with temperature control, method, and system

#29
20240110731
2024-04-04

Method for Configuring Wellbores in a Geologic Formation

#30
20240102359
2024-03-28

LIQUID-COOLED FRACTURING SYSTEM

#31
20240093575
2024-03-21

Cooling injection fluid

#32
20240052724
2024-02-15

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF SUBSEA CONDUITS USING A JUMPER HAVING ADJUSTABLE INSULATING ELEMENTS

#33
20240044226
2024-02-08

MODULAR INTEGRATED COOLING SYSTEM

#34
20240026803
2024-01-25

Cooling gas recovered from a well

#35
20230392485
2023-12-07

Extraction and integration of waste heat from enhanced geologic hydrogen production

#36
20230374895
2023-11-23

Water separation and injection

#37
20230366293
2023-11-16

Cooling drilling fluid

#38
20230340844
2023-10-26

Mud returns evaporative cooling

#39
20230287763
2023-09-14

A Subsea System Comprising a Preconditioning Unit and Pressure Boosting Device and Method of Operating the Preconditioning Unit

#40
20230258056
2023-08-17

Rotating control device with integrated cooling for sealed bearings

#41
20230250708
2023-08-10

BELL NIPPLE WITH ANNULAR PREVENTERS AND COOLANT INJECTION

#42
20230228155
2023-07-20

Cooling for geothermal well drilling

#43
20230184059
2023-06-15

SUBSEA CLOSED LOOP COOLING SYSTEM

#44
20230183548
2023-06-15

Rigless method for selective zonal isolation in subterranean formations using polymer gels

#45
20230175354
2023-06-08

Cooling methodology to improve hydraulic fracturing efficiency and reduce breakdown pressure

#46
20230118049
2023-04-20

PASSIVE WELLBORE OPERATIONS FLUID COOLING SYSTEM

#47
20230085777
2023-03-23

Drilling fluid conditioning systems and methods

#48
20230085175
2023-03-16

ELECTRO-HYDROFRACTURING USING ELECTRICALLY CONDUCTIVE PROPPANTS AND RELATED METHODS

#49
20230012336
2023-01-12

Lens driving apparatus

#50
20220397026
2022-12-15

Integrated methods for reducing formation breakdown pressures to enhance petroleum recovery

#51
20220397025
2022-12-15

Integrated methods for reducing formation breakdown pressures to enhance petroleum recovery

#52
20220384105
2022-12-01

Configurations for cooling capacitors

#53
20220364433
2022-11-17

Downhole apparatus and method for operations involving delivery and hardening of settable materials

#54
20220356785
2022-11-10

Cooling system for downhole electronic device

#55
20220341402
2022-10-27

Systems and methods for generation of electrical power in an organic Rankine cycle operation

#56
20220290534
2022-09-15

Advanced rapid logging system

#57
20220282594
2022-09-08

System and process for installing a hydrocarbon production system

#58
20220259944
2022-08-18

Methods and systems for controlling geysering in mining

#59
20220235612
2022-07-28

Spallation drill head and associated methods

#60
20220205348
2022-06-30

Apparatus, method and wellbore installation to mitigate heat damage to well components during high temperature fluid injection

#61
20220106869
2022-04-07

BREAKDOWN PRESSURE REDUCTION BASED ON INJECTION OF COOLING AGENTS

#62
20220034604
2022-02-03

Submerged cooler arrangements

#63
20220003459
2022-01-06

Method for configuring wellbores in a geologic formation

#64
20210363868
2021-11-25

Integrated methods for reducing formation breakdown pressures to enhance petroleum recovery

#65
20210325089
2021-10-21

Forming high efficiency geothermal wellbores

#66
20210301634
2021-09-30

Gas-lift treatment system

#67
20210230976
2021-07-29

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF SUBSEA CONDUITS USING AN INTERCONNECTING CONDUIT HAVING A CONTROLLABLE ANNULAR SECTION

#68
20210230975
2021-07-29

Systems and methods for thermal management of subsea conduits using a jumper having adjustable insulating elements

#69
20210176899
2021-06-10

Air cooled variable-frequency drive

#70
20210172319
2021-06-10

MULTILEVEL DEEP WELL COOLING AND GEOTHERMAL UTILIZATION SYSTEM AND PROCESS

#71
20210164327
2021-06-03

Drilling fluid composition and method for cooling in high temperature formations

#72
20210102441
2021-04-08

Method for continuous downhole cooling of high-temperature drilling fluid

#73
20210087905
2021-03-25

Downhole apparatus and method for delivering settable material

#74
20210002989
2021-01-07

Apparatus for conditioning natural gas for use in gas lift artificial lift applications in oil and gas production

#75
20200392813
2020-12-17

Cooling fluid circulation systems for offshore production operations

#76
20200300060
2020-09-24

Telemetry system and method for cooling downhole electronics

#77
20200285020
2020-09-10

Lens driving apparatus

#78
20200263533
2020-08-20

Apparatus and method for delivering settable fluid downhole

#79
20200217143
2020-07-09

Multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method

#80
20200208565
2020-07-02

Prime mover and lube oil cooling assembly for fracturing pump transport

#81
20200199972
2020-06-25

Downhole drilling system

#82
20200088010
2020-03-19

System and methods for in situ recovery and processing of recovered solutions

#83
20200024498
2020-01-23

Methods and systems for using elastocaloric materials in subterranean formations

#84
20190368314
2019-12-05

Device temperature gradient control

#85
20190360306
2019-11-28

PRESSURE PROTECTION FOR AN OFFSHORE PLATFORM

#86
20190345801
2019-11-14

Temperature responsive fracturing

#87
20190323320
2019-10-24

Rapidly cooling a geologic formation in which a wellbore is formed

#88
20190323319
2019-10-24

Rapidly cooling a geologic formation in which a wellbore is formed

#89
20190316442
2019-10-17

THERMAL BARRIER FOR DOWNHOLE FLASKED ELECTRONICS

#90
20190186250
2019-06-20

Production well apparatus for underground coal gasification and use thereof

#91
20190101720
2019-04-04

Lens driving apparatus

#92
20190093475
2019-03-28

Real-time fluid monitoring system and method

#93
20190072096
2019-03-07

Subsea assembly

#94
20190063188
2019-02-28

Downhole graphene heat exchanger

#95
20190055818
2019-02-21

Rapidly cooling a geologic formation in which a wellbore is formed

#96
20190055817
2019-02-21

Thermal management system for downhole tools

#97
20190017350
2019-01-17

Apparatus and methods for regulating component temperature in a downhole tool

#98
20180371866
2018-12-27

Packer

#99
20180320462
2018-11-08

Closed loop drilling mud cooling system for land-based drilling operations

#100
20180313196
2018-11-01

Cooling systems and methods for downhole solid state pumps

#101
20180313195
2018-11-01

Wireline-deployed solid state pump for removing fluids from a subterranean well

#102
20180267269
2018-09-20

Lens driving apparatus

#103
20180230793
2018-08-16

Tool and method for actively cooling downhole electronics

#104
20180163524
2018-06-14

Downhole wellbore high power laser heating and fracturing stimulation and methods

#105
20180156015
2018-06-07

Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore

#106
20180106131
2018-04-19

Regulating the temperature of a subsea process flow

#107
20180100377
2018-04-12

Evaporative cooling using a refrigerant, a selectively permeable membrane, and a drawing fluid

#108
20180038061
2018-02-08

Method of using low-density, freezable fluid to create a flow barrier in a well

#109
20170306706
2017-10-26

Marine riser

#110
20170292533
2017-10-12

Self-cooling electric submersible pump

#111
20170247948
2017-08-31

Directional drilling systems, apparatus, and methods

#112
20170198196
2017-07-13

METHODS FOR CONTROLLING SOURING IN ENGINEERED SYSTEMS

#113
20170176707
2017-06-22

Lens driving apparatus

#114
20170175489
2017-06-22

Using horizontal directional drilling and liquid nitrogen cyclic freeze-thaw process to improve permeability in gas drainage

#115
20170101864
2017-04-13

Multi chip module housing mounting in MWD, LWD and wireline downhole tool assemblies

#116
20170089188
2017-03-30

Method of gas, oil, and mineral production using a clean process system and method

#117
20170067316
2017-03-09

Method of gas, oil and mineral production using a clean processing system and method

#118
20170038310
2017-02-09

Inspection tool

#119
20170037720
2017-02-09

System and method for processing natural gas produced from a subsea well

#120
20170030162
2017-02-02

Well casing/tubing disposal

#121
20160368800
2016-12-22

SUBSEA SEAWATER FILTRATION AND TREATMENT SYSTEM

#122
20160273309
2016-09-22

Downhole Electrical System

#123
20160237800
2016-08-18

Fluid processing system

#124
20160230491
2016-08-11

Fluid supply to sealed tubulars

#125
20160222761
2016-08-04

Subsea Heat Exchangers For Offshore Hydrocarbon Production Operations

#126
20160216009
2016-07-28

Vortex tube cooler

#127
20160186516
2016-06-30

Smart Material Coupler

#128
20160168916
2016-06-16

Apparatus for drilling deeper and wider well bore with casing

#129
20160160609
2016-06-09

Endothermic heat sink for downhole tools

#130
20160145996
2016-05-26

Solid state phase change flasking for a downhole tool component

#131
20160139358
2016-05-19

Lens driving apparatus

#132
20160130913
2016-05-12

SUBSEA PRODUCTION COOLER

#133
20160084054
2016-03-24

Method of gas, oil and mineral production using a clean processing system and method

#134
20160076339
2016-03-17

APPARATUSES AND METHODS FOR COOLING SENSOR COMPONENTS IN HOT FORMATIONS

#135
20160024887
2016-01-28

System for controlling temperature of subsea equipment

#136
20160010407
2016-01-14

Closed loop drilling mud cooling system for land-based drilling operations

#137
20150354321
2015-12-10

Subwater heat exchanger

#138
20150345254
2015-12-03

Downhole logging tool cooling device

#139
20150330165
2015-11-19

Drilling mud cooling system

#140
20150315874
2015-11-05

BEARING ASSEMBLY COOLING METHODS

#141
20150308230
2015-10-29

Subsea production cooler with gas lift

#142
20150266838
2015-09-24

Benzofurazan anti-amyloid compounds and methods

#143
20150233206
2015-08-20

CASING, PROCESS OF FORMATION OF CASING IN BOREHOLES BY ADDITIVE METHOD AND DEVICE FOR ITS FORMATION

#144
20150226361
2015-08-13

Submersed heat exchanger

#145
20150218432
2015-08-06

Heat removal in drilling and production operations

#146
20150198024
2015-07-16

Combined RF heating and pump lift for a hydrocarbon resource recovery apparatus and associated methods

#147
20150188314
2015-07-02

Methods and systems for subsea direct current power distribution

#148
20150168670
2015-06-18

Lens driving apparatus

#149
20150167438
2015-06-18

Electric fracturing of a reservoir

#150
20150129221
2015-05-14

Heat exchange in downhole apparatus using core-shell nanoparticles

#151
20150047846
2015-02-19

Method of improving hydraulic fracturing by decreasing formation temperature

#152
20150021094
2015-01-22

Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations

#153
20150000913
2015-01-01

Thermal Buffering of Downhole Equipment with Phase Change Material

#154
20140367167
2014-12-18

Thermal component temperature management system and method

#155
20140367166
2014-12-18

Thermal component temperature management system and method

#156
20140367165
2014-12-18

Thermal component temperature management system and method

#157
20140318635
2014-10-30

Safety system for dangerous substances

#158
20140246166
2014-09-04

Subsea heat exchanger and method for temperature control

#159
20140224488
2014-08-14

System and method for temporarily sealing a bore hole

#160
20140216726
2014-08-07

Apparatus for heating a hydrocarbon resource in a subterranean formation including a fluid balun and related methods

#161
20140216725
2014-08-07

Apparatus for heating a hydrocarbon resource in a subterranean formation providing an adjustable liquid coolant and related methods

#162
20140208790
2014-07-31

COMPACT DESSICANT AND ZEOLITE BODIES FOR USE IN A DOWNHOLE SORPTION COOLING SYSTEM

#163
20140202704
2014-07-24

Subsea compression

#164
20140158429
2014-06-12

Cooling System and Method for A Downhole Tool

#165
20140158320
2014-06-12

Subsea cooling apparatus, and a separately retrievable submersible pump module for a submerged heat exchanger

#166
20140138094
2014-05-22

System and method for cooling a rotating control device

#167
20140138093
2014-05-22

SUBSEA COOLING SYSTEM

#168
20140131044
2014-05-15

Hydrocarbon resource heating device including superconductive material RF antenna and related methods

#169
20140090893
2014-04-03

Obtaining and evaluating downhole samples with a coring tool

#170
20140027113
2014-01-30

SYSTEMS AND METHODS FOR REDUCING PVT EFFECTS DURING PRESSURE TESTING OF A WELLBORE FLUID CONTAINMENT SYSTEM

#171
20140000898
2014-01-02

Method of cooling downhole element using nanoenhanced downhole fluid

#172
20130341018
2013-12-26

Recovery from a subsurface hydrocarbon reservoir

#173
20130308213
2013-11-21

Lens driving apparatus

#174
20130199615
2013-08-08

System for controlling temperature of subsea equipment

#175
20130192896
2013-08-01

Method for cooling a rotating control device

#176
20130192834
2013-08-01

Method and system for controlling wellbore production temperature

#177
20130192816
2013-08-01

Single well, self-flowing, geothermal system for energy extraction

#178
20130126245
2013-05-23

Annular disposed stirling heat exchanger

#179
20130126171
2013-05-23

Heat dissipation in downhole equipment

#180
20130104572
2013-05-02

Downhole refrigeration using an expendable refrigerant

#181
20130094909
2013-04-18

Systems and methods for collecting and processing permafrost gases, and for cooling permafrost

#182
20130092379
2013-04-18

Open loop cooling system and method for downhole tools

#183
20130062122
2013-03-14

High temperature drilling with lower temperature rated tools

#184
20130062064
2013-03-14

Method and device for the “in-situ” transport of bitumen or extra-heavy oil

#185
20130044383
2013-02-21

Lens driving apparatus

#186
20130043028
2013-02-21

Method of cooling downhole element using nanoenhanced downhole fluid

#187
20130032400
2013-02-07

Cooled-fluid systems and methods for pulsed-electric drilling

#188
20130032397
2013-02-07

Systems and methods for pulsed-flow pulsed-electric drilling

#189
20130025632
2013-01-31

SLURRY GENERATION

#190
20130008660
2013-01-10

In situ recovery from a hydrocarbon containing formation

#191
20130000868
2013-01-03

PROTECTIVE SHEATH FOR STRUCTURAL COMPONENTS

#192
20120298343
2012-11-29

Subsea cooler

#193
20120297801
2012-11-29

Forced cooling circulation system for drilling mud

#194
20120285656
2012-11-15

Offshore hydrocarbon cooling system

#195
20120285178
2012-11-15

Desorption of a desiccant by radio waves or microwaves for a downhole sorption cooler

#196
20120216990
2012-08-30

Heat removal in drilling and production operations

#197
20120193099
2012-08-02

TEMPERATURE LIMITED HEATER UTILIZING NON-FERROMAGNETIC CONDUCTOR

#198
20120168142
2012-07-05

Submersed heat exchanger

#199
20120152545
2012-06-21

Downhole tool thermal device

#200
20120138366
2012-06-07

Method for cooling a rotating control head

#201
20120125614
2012-05-24

Method for active cooling of downhole tools using the vapor compression cycle

#202
20120103621
2012-05-03

Subsea system with subsea cooler and method for cleaning the subsea cooler

#203
20120097362
2012-04-26

Subsea cooler and method for cleaning the subsea cooler

#204
20120069461
2012-03-22

Lens driving apparatus

#205
20120048531
2012-03-01

Thermal component temperature management system and method

#206
20120000667
2012-01-05

Subsea wellhead assembly

#207
20110308791
2011-12-22

Apparatus for Use Downhole Including Devices Having Heat Carrier Channels

#208
20110303413
2011-12-15

Methods and systems for producing fluid from an in situ conversion process

#209
20110272154
2011-11-10

Dissipating heat from a downhole heat generating device

#210
20110272135
2011-11-10

Axially loaded tapered heat sink mechanism

#211
20110247814
2011-10-13

Forming bitumen barriers in subsurface hydrocarbon formations

#212
20110247802
2011-10-13

Barrier methods for use in subsurface hydrocarbon formations

#213
20110170843
2011-07-14

Grouped exposed metal heaters

#214
20110170204
2011-07-14

Lens driving apparatus

#215
20110168382
2011-07-14

Leak detection method for a rotating control head bearing assembly and its latch assembly using a comparator

#216
20110162847
2011-07-07

Methods and systems for downhole active cooling

#217
20110088904
2011-04-21

In situ recovery from a hydrocarbon containing formation

#218
20110079430
2011-04-07

Rotating control device, cool fluid circulation system and methods of operation

#219
20110048806
2011-03-03

Apparatus and methods for controlling bottomhole assembly temperature during a pause in drilling boreholes

#220
20110048802
2011-03-03

Method and apparatus for controlling bottomhole temperature in deviated wells

#221
20110048734
2011-03-03

Snubbing tubulars from a SAGD well

#222
20110036629
2011-02-17

Rotating control head leak detection systems

#223
20110024195
2011-02-03

Drilling with a high pressure rotating control device

#224
20110024120
2011-02-03

METHOD OF SERVICING HIGH TEMPERATURE WELLS

#225
20110024102
2011-02-03

Completion system for subsurface equipment

#226
20100263874
2010-10-21

Method and apparatus for freeze-thaw well stimulation using orificed refrigeration tubing

#227
20100263869
2010-10-21

METHOD AND APPARATUS FOR STIMULATING PRODUCTION FROM OIL AND GAS WELLS BY FREEZE-THAW CYCLING

#228
20100252227
2010-10-07

Subsea cooler

#229
20100223989
2010-09-09

Obtaining and evaluating downhole samples with a coring tool

#230
20100175883
2010-07-15

Undersea well product transport

#231
20100150739
2010-06-17

Heat transfer through the electrical submersible pump

#232
20100089585
2010-04-15

Method of developing subsurface freeze zone

#233
20100071904
2010-03-25

Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations

#234
20100071903
2010-03-25

Mines and tunnels for use in treating subsurface hydrocarbon containing formations

#235
20100039719
2010-02-18

Lens driving apparatus

#236
20100012325
2010-01-21

System and method for sub-cooling hydrocarbon production fluid for transport

#237
20090277612
2009-11-12

UNDERWATER COOLING ASSEMBLY

#238
20090272578
2009-11-05

Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations

#239
20090272536
2009-11-05

Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations

#240
20090272535
2009-11-05

Using tunnels for treating subsurface hydrocarbon containing formations

#241
20090272533
2009-11-05

Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations

#242
20090272526
2009-11-05

Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations

#243
20090272129
2009-11-05

Method and cooling system for electric submersible pumps/motors for use in geothermal wells

#244
20090260824
2009-10-22

HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS

#245
20090260823
2009-10-22

MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS

#246
20090236144
2009-09-24

Managed pressure and/or temperature drilling system and method

#247
20090107679
2009-04-30

Subsurface freeze zone using formation fractures

#248
20090101348
2009-04-23

Method of developing subsurface freeze zone

#249
20090101346
2009-04-23

In situ recovery from a hydrocarbon containing formation

#250
20080217523
2008-09-11

Condensation-induced gamma radiation as a method for the identification of condensable vapor

#251
20080217321
2008-09-11

Temperature limited heater utilizing non-ferromagnetic conductor

#252
20080185184
2008-08-07

Cryogenic drilling method

#253
20080087426
2008-04-17

Method of developing a subsurface freeze zone using formation fractures

#254
20080087421
2008-04-17

Method of developing subsurface freeze zone

#255
20080066534
2008-03-20

Obtaining and evaluating downhole samples with a coring tool

#256
20080041593
2008-02-21

Wellbore formation evaluation system and method

#257
20080035345
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