ClassID:

135549

E21B36/02 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20240418066
2024-12-19

STEAM GENERATOR TOOL

#2
20240084659
2024-03-14

Preventing or removing contaminants in wellbore fluid using an acoustic actuator

#3
20230234061
2023-07-27

MANIPULATION OF FLUIDS, FLUID COMPONENTS AND REACTIONS IN MICROFLUIDIC SYSTEMS

#4
20220316758
2022-10-06

Modular heating unit

#5
20220275715
2022-09-01

Steam generator tool

#6
20190100984
2019-04-04

System and method of producing oil

#7
20180274356
2018-09-27

Downhole plug and abandonment system

#8
20180274333
2018-09-27

System and method for sealing multilateral junctions

#9
20180179857
2018-06-28

STAGE TOOL

#10
20180171737
2018-06-21

Downhole assembly including degradable-on-demand material and method to degrade downhole tool

#11
20180171736
2018-06-21

Downhole assembly including degradable-on-demand material and method to degrade downhole tool

#12
20180156018
2018-06-07

THE METHOD OF EXTRACTING HYDROCARBONS FROM A SHALE GAS DEPOSIT AND A DEVICE FOR EXTRACTING HYDROCARBONS FROM A SHALE GAS DEPOSIT

#13
20180149005
2018-05-31

System and method of producing oil

#14
20180148996
2018-05-31

Well test burner system and methods of use

#15
20160290628
2016-10-06

Method for controlling combustion gas output in direct steam generation for oil recovery

#16
20160258255
2016-09-08

Underwater oil pipeline heating systems

#17
20150345271
2015-12-03

Apparatus, system, and method for controlling combustion gas output in direct steam generation for oil recovery

#18
20150252950
2015-09-10

Underwater oil pipeline heating systems

#19
20150198026
2015-07-16

Steam environmentally generated drainage system and method

#20
20150198025
2015-07-16

System and method of producing oil

#21
20150140463
2015-05-21

Heater with a fuel cell stack assembly and a combustor and method of operating

#22
20150140461
2015-05-21

Method of operating a heater

#23
20150060061
2015-03-05

Heater and method of operating

#24
20150021094
2015-01-22

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

#25
20140284051
2014-09-25

Downhole steam generator control system

#26
20140238680
2014-08-28

Downhole steam generator and method of use

#27
20140231078
2014-08-21

Method of recovering hydrocarbons from a reservoir

#28
20140209310
2014-07-31

Downhole steam generator and method of use

#29
20140034302
2014-02-06

Method of operation of a downhole gas generator with multiple combustion chambers

#30
20140034289
2014-02-06

Downhole gas generator with multiple combustion chambers

#31
20130344448
2013-12-26

High pressure combustor with hot surface ignition

#32
20130341026
2013-12-26

Fracturing apparatus

#33
20130341015
2013-12-26

Downhole combustor

#34
20130340691
2013-12-26

High efficiency direct contact heat exchanger

#35
20130140027
2013-06-06

Method and apparatus for a downhole gas generator

#36
20130062065
2013-03-14

Indirect downhole steam generator with carbon dioxide capture

#37
20130043029
2013-02-21

HIGH VOLTAGE TEMPERATURE LIMITED HEATERS

#38
20130037266
2013-02-14

Method for producing viscous hydrocarbon using steam and carbon dioxide

#39
20130025866
2013-01-31

INTEGRATED PROCESS UTILIZING NITROGEN AND CARBON DIOXIDE STREAMS FOR ENHANCED OIL RECOVERY

#40
20130020076
2013-01-24

Apparatus and method for downhole steam generation and enhanced oil recovery

#41
20120103604
2012-05-03

SUBSURFACE HEATING DEVICE

#42
20120067573
2012-03-22

Method for producing viscous hydrocarbon using steam and carbon dioxide

#43
20120067568
2012-03-22

Method of using carbon dioxide in recovery of formation deposits

#44
20120028201
2012-02-02

SUBSURFACE HEATER

#45
20110259591
2011-10-27

Thermal processes for subsurface formations

#46
20110214858
2011-09-08

Downhole steam generator and method of use

#47
20110127036
2011-06-02

Method and apparatus for a downhole gas generator

#48
20110122727
2011-05-26

DETECTING ACOUSTIC SIGNALS FROM A WELL SYSTEM

#49
20110036576
2011-02-17

Heated fluid injection using multilateral wells

#50
20110036575
2011-02-17

Producing resources using heated fluid injection

#51
20100276139
2010-11-04

SYSTEM AND METHOD FOR GENERATION OF SYNTHESIS GAS FROM SUBTERRANEAN COAL DEPOSITS VIA THERMAL DECOMPOSITION OF WATER BY AN ELECTRIC TORCH

#52
20100243245
2010-09-30

Process and apparatus for release and recovery of methane from methane hydrates

#53
20100200232
2010-08-12

Process for dispersing nanocatalysts into petroleum-bearing formations

#54
20100181069
2010-07-22

Apparatus and method for downhole steam generation and enhanced oil recovery

#55
20100181066
2010-07-22

Thermal processes for subsurface formations

#56
20100071904
2010-03-25

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

#57
20100071903
2010-03-25

Mines and tunnels for use in treating subsurface hydrocarbon containing formations

#58
20100011767
2010-01-21

Steam driven turbine drive

#59
20090272578
2009-11-05

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

#60
20090272536
2009-11-05

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

#61
20090272535
2009-11-05

Using tunnels for treating subsurface hydrocarbon containing formations

#62
20090272533
2009-11-05

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

#63
20090272526
2009-11-05

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

#64
20090260824
2009-10-22

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

#65
20090260823
2009-10-22

MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS

#66
20090260811
2009-10-22

METHODS FOR GENERATION OF SUBSURFACE HEAT FOR TREATMENT OF A HYDROCARBON CONTAINING FORMATION

#67
20090260810
2009-10-22

METHOD FOR TREATING A HYDROCARBON CONTAINING FORMATION

#68
20090260809
2009-10-22

METHOD FOR TREATING A HYDROCARBON CONTAINING FORMATION

#69
20090260808
2009-10-22

Method for treating a hydrocarbon containing formation

#70
20090223678
2009-09-10

Heat generator for screen deployment

#71
20090095153
2009-04-16

NATURAL GAS RECOVERY SYSTEM AND METHOD

#72
20090071647
2009-03-19

Thermal processes for subsurface formations

#73
20090050319
2009-02-26

Downhole burners for in situ conversion of organic-rich rock formations

#74
20090008088
2009-01-08

Oscillating fluid flow in a wellbore

#75
20080283241
2008-11-20

Downhole burner wells for in situ conversion of organic-rich rock formations

#76
20080236817
2008-10-02

System and method for recovery of fuel products from subterranean carbonaceous deposits via an electric device

#77
20080217008
2008-09-11

Process for dispersing nanocatalysts into petroleum-bearing formations

#78
20080078551
2008-04-03

Liquid metal heat exchanger for efficient heating of soils and geologic formations

#79
20080023197
2008-01-31

Apparatus, system, and method for in-situ extraction of hydrocarbons

#80
20070193748
2007-08-23

Method for producing viscous hydrocarbon using steam and carbon dioxide

#81
20070131411
2007-06-14

Thermal processes for subsurface formations

#82
20070042306
2007-02-22

Apparatus for igniting combustible mediums

#83
20070039736
2007-02-22

Communicating fluids with a heated-fluid generation system

#84
20060162923
2006-07-27

Method for producing viscous hydrocarbon using incremental fracturing

#85
20050051327
2005-03-10

Thermal processes for subsurface formations

#86
20050026094
2005-02-03

POROUS MEDIA GAS BURNER

#87
20050006097
2005-01-13

Variable frequency temperature limited heaters