ClassID:

135547

E21B36/006 - CPC Classification

Classification description:

Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones Combined heating and pumping means

Recent Application in this class:
#1
20250354459
2025-11-20

GROUND-SOURCE THERMAL SYSTEM FOR REJECTING DATA CENTER WASTE HEAT TO A FACILITY

#2
20250224150
2025-07-10

SYSTEM AND METHOD FOR GEOTHERMAL ENERGY PRODUCTION

#3
20240410256
2024-12-12

EFFICIENT SURFACE AND DOWNHOLE HEATING OF INJECTED CARBON DIOXIDE

#4
20240376796
2024-11-14

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

#5
20240018860
2024-01-18

Fracturing apparatus

#6
20230313651
2023-10-05

TUBULAR FOR DOWNHOLE USE

#7
20220412196
2022-12-29

Heavy oil lifting device and heavy oil lifting method

#8
20220403708
2022-12-22

PROCESS HEATER ANTI-SETTLING SYSTEMS AND METHODS

#9
20220364433
2022-11-17

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

#10
20220018220
2022-01-20

Fluid heater and associated methods

#11
20210348472
2021-11-11

Borehole junction support by consolidation of formation materials

#12
20210340850
2021-11-04

Method for forming a sleeve for insulating a joint of downhole tubing

#13
20210222529
2021-07-22

Processes for increasing hydrocarbon production

#14
20210102442
2021-04-08

Heating and anti-waxing apparatus and device for reducing viscosity under the oil well pump

#15
20210010355
2021-01-14

ELECTRIC SUBMERSIBLE PUMPING UNIT

#16
20200173264
2020-06-04

Electric submersible pumping unit

#17
20200157925
2020-05-21

Electric submersible pumping unit

#18
20200141218
2020-05-07

Tubular for downhole use

#19
20200115994
2020-04-16

Installation of heating for hydrocarbon extraction pipes

#20
20190383118
2019-12-19

Determining ground loop resistance with ground source heat pump monitoring data

#21
20190345780
2019-11-14

Subsea Flowline Blockage Remediation Using Internal Heating Device

#22
20190316453
2019-10-17

Tubular protection for radiofrequency system to improve the recovery of heavy oils

#23
20190264735
2019-08-29

Electric submersible pumping unit

#24
20190264703
2019-08-29

Electric submersible pumping unit

#25
20190264540
2019-08-29

Electric submersible pumping unit

#26
20180209259
2018-07-26

Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection

#27
20180209247
2018-07-26

METHOD AND APPARATUS FOR SUPPORTING CABLES WITHIN COIL TUBING

#28
20180179871
2018-06-28

Altering characteristics of a wellbore by mechanical intervention at the source

#29
20180038199
2018-02-08

Fusible alloy plug in flow control device

#30
20170247993
2017-08-31

Green boiler—closed loop energy and power system to support enhanced oil recovery that is environmentally friendly

#31
20170175504
2017-06-22

Hot water injection stimulation method for chops wells

#32
20170051589
2017-02-23

Production riser with a gas lift facility

#33
20170051580
2017-02-23

HYDROCARBON POWER SYSTEM

#34
20160369606
2016-12-22

Oilfield surface equipment cooling system

#35
20160340567
2016-11-24

System for removing organic deposits

#36
20160076347
2016-03-17

Self-contained portable unit for steam generation and injection by means of injector wellhead hanger of coiled jacketed capillary tubing with closed circuit and procedure for its operations in oil wells

#37
20150308231
2015-10-29

LIQUID BASED BOILER

#38
20150300126
2015-10-22

Method and apparatus for supporting cables within coil tubing

#39
20150299558
2015-10-22

Colloidal silica and polymer system for insulating packer fluids

#40
20150252654
2015-09-10

Method for Pumping Hydrocarbons

#41
20150159917
2015-06-11

METHOD AND APPARATUS OF USING HEAT GENERATED BY SINGLE WELL ENGINEERED GEOTHERMAL SYSTEM (SWEGS) TO HEAT OIL LADEN ROCK OR ROCK WITH PERMEABLE FLUID CONTENT FOR ENHANCE OIL RECOVERY

#42
20150159470
2015-06-11

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

#43
20150129210
2015-05-14

Oilfield surface equipment cooling system

#44
20150122497
2015-05-07

Direct electrical steam generation for downhole heavy oil stimulation

#45
20150000927
2015-01-01

Fusible alloy plug in flow control device

#46
20140151045
2014-06-05

Increasing formation strength through the use of temperature and temperature coupled particulate to increase near borehole hoop stress and fracture gradients

#47
20140144612
2014-05-29

BOP heating methods and systems and heat exchange units

#48
20140124203
2014-05-08

Method and apparatus for the downhole injection of superheated steam

#49
20130118746
2013-05-16

Composite Cable Systems For Use In An In Situ Oil Production Process

#50
20130068455
2013-03-21

Shroud having separate upper and lower portions for submersible pump assembly and gas separator

#51
20130014914
2013-01-17

BOP heating methods and systems and heat exchange units

#52
20120312538
2012-12-13

Device and method for obtaining, in particular in situ, a substance containing carbon from an underground deposit

#53
20120298367
2012-11-29

Earth heat transfer loop appartus

#54
20120190592
2012-07-26

Method and system for removing organic deposits

#55
20110277999
2011-11-17

Single packer system for use in heavy oil environments

#56
20110005757
2011-01-13

DEVICE AND METHOD FOR FLOWING BACK WELLBORE FLUIDS

#57
20100243201
2010-09-30

Earth heat transfer loop apparatus

#58
20100044053
2010-02-25

Method and an apparatus for cold start of a subsea production system

#59
20090211756
2009-08-27

Formation tester with low flowline volume and method of use thereof

#60
20080083536
2008-04-10

Producing resources using steam injection

#61
20070267220
2007-11-22

Methane extraction method and apparatus using high-energy diode lasers or diode-pumped solid state lasers

#62
20070119592
2007-05-31

Earth heat transfer loop apparatus

#63
20070062704
2007-03-22

Method and system for enhancing hydrocarbon production from a hydrocarbon well

#64
20060175053
2006-08-10

Process to improve extraction of crude oil and installation implementing such process

#65
20050224223
2005-10-13

Heating apparatus for wells

#66
20050205260
2005-09-22

Wellbore rig with heat transfer loop apparatus

#67
20050173119
2005-08-11

Down hole drilling fluid heating apparatus and method

#68
20050045337
2005-03-03

Method for completing a well using increased fluid temperature

#69
17566955
2022-11-01

Determining a laminar-turbulent transition region for a wellbore fluid

#70
14996699
2018-03-13

Flow balanced frac tank farm