ClassID:

135632

E21B43/17 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Enhanced recovery methods for obtaining hydrocarbons Interconnecting two or more wells by fracturing or otherwise attacking the formation

Recent Application in this class:
#1
20260015926
2026-01-15

ENHANCING CONNECTIVITY BETWEEN INJECTOR AND PRODUCER WELLS USING SEQUENCED STIMULATION

#2
20250354468
2025-11-20

COMBINED WELL SYSTEM AND METHOD FOR ENHANCED PRODUCTION

#3
20250129716
2025-04-24

COMPREHENSIVE WORKFLOW TO MODEL NATURALLY FRACTURED RESERVOIRS

#4
20250122421
2025-04-17

COMPOSITIONS AND METHODS FOR PRESSURE PROTECTION

#5
20240410262
2024-12-12

Controlling hydraulic fracture growth using stress shadows

#6
20240392666
2024-11-28

Electric Powered Hydraulic Fracturing Pump System with Single Electric Powered Multi-Plunger Fracturing Pump

#7
20240280295
2024-08-22

System and Method for Using Controlled Fractures in Enhanced Geothermal Systems

#8
20240229630
2024-07-11

System and Method for Determining Parameters corresponding to Hydraulic Connection between Monitor Well and Treatment Well

#9
20240110472
2024-04-04

OPTIMAL DRILLING AND FRACTURING SEQUENCES FOR PLACING NUMEROUS HORIZONTAL WELLS IN TIGHT RESERVOIRS

#10
20240084680
2024-03-14

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#11
20240076964
2024-03-07

System, Method and Apparatus for Creating Electrolysis

#12
20240018856
2024-01-18

METHODOLOGY FOR DESIGN AND OPERATIONS OF FIELD-WIDE AND MULTI-WELL ENHANCED OIL RECOVERY OF UNCONVENTIONAL HYDROCARBON ASSETS

#13
20230323762
2023-10-12

Methods for enhancing and maintaining heat transfer efficiency between geothermal heat and injection fluid

#14
20230287767
2023-09-14

UNIVERSAL BLOCK PLATFORM

#15
20230183562
2023-06-15

Compositions and methods for pressure protection

#16
20230160373
2023-05-25

Flow control for geothermal well

#17
20230146951
2023-05-11

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#18
20230084576
2023-03-16

Compositions and methods for pressure protection

#19
20220243573
2022-08-04

SYSTEMS AND METHODS FOR SUBDIVIDING CHEMICAL FLOW FOR WELL COMPLETION OPERATIONS

#20
20220135871
2022-05-05

Method of mitigating frac hit production interference from adjacent oil wells using treatment fluids with nanoparticles

#21
20210371726
2021-12-02

Compositions and methods for the use and application of carbon nanodots for deep-reservoir enhanced oil recovery

#22
20210371724
2021-12-02

Compositions and methods employing carbon-based nanodots for wettability alteration

#23
20210278106
2021-09-09

Flow control in geothermal wells

#24
20210254433
2021-08-19

Wireless activation of wellbore completion assemblies

#25
20210230991
2021-07-29

Fluid injection treatments in subterranean formations stimulated using propellants

#26
20210222533
2021-07-22

Universal block platform jacket connector block

#27
20210222386
2021-07-22

Universal block platform integrated platform block

#28
20210214907
2021-07-15

Universal block platform lower platform block and method of use

#29
20210172139
2021-06-10

Universal block platform

#30
20210148210
2021-05-20

Methods for enhancing hydrocarbon production from subterranean formations using electrically controlled propellant

#31
20210131242
2021-05-06

Reservoir stimulation comprising hydraulic fracturing through extended tunnels

#32
20210102451
2021-04-08

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#33
20210002991
2021-01-07

Methods for pressure protection using a gas

#34
20210002990
2021-01-07

Methods for improving hydrocarbon production from an unconventional subterranean formation

#35
20210002544
2021-01-07

Methods for pressure protection using a foamed pressure protection composition

#36
20200240246
2020-07-30

Permeability enhancement method for coalbed methane wells by using electric pulse detonation fracturing technology

#37
20200208504
2020-07-02

Long-distance drilling and hydrofracturing integrated device and method in underground mine

#38
20200141215
2020-05-07

EVALUATING FAR FIELD FRACTURE COMPLEXITY AND OPTIMIZING FRACTURE DESIGN IN MULTI-WELL PAD DEVELOPMENT

#39
20200124324
2020-04-23

Coiled tubing for radiator enhanced geothermal system

#40
20190264552
2019-08-29

Method and system for distribution of a proppant

#41
20190249527
2019-08-15

Simultaneous Fracturing Process

#42
20190249520
2019-08-15

Wireless activation of wellbore completion assemblies

#43
20190195053
2019-06-27

System, method and apparatus for creating an electrical glow discharge

#44
20190145260
2019-05-16

Method for constructing networked preferential gas migration pathways and diverting and extracting gas

#45
20190040311
2019-02-07

METHODS FOR ENHANCING APPLICATIONS OF ELECTRICALLY CONTROLLED PROPELLANTS IN SUBTERRANEAN FORMATIONS

#46
20180320499
2018-11-08

Well system of acquiring information of hydraulic fracture geometry for evaluating and optimizing well spacing for multi-well pad

#47
20180320493
2018-11-08

AUTOMATED UPSCALING OF RELATIVE PERMEABILITY USING FRACTIONAL FLOW IN SYSTEMS COMPRISING DISPARATE ROCK TYPES

#48
20180283153
2018-10-04

METHODS AND MATERIALS FOR EVALUATING AND IMPROVING THE PRODUCTION OF GEO-SPECIFIC SHALE RESERVOIRS

#49
20180230782
2018-08-16

Method of performing integrated fracture and reservoir operations for multiple wellbores at a wellsite

#50
20180080309
2018-03-22

Providing communication between wellbores through directional hydraulic fracturing

#51
20180058183
2018-03-01

METHOD OF OIL AND GAS RECOVERY FROM PREVIOUSLY USED WELLS

#52
20180038205
2018-02-08

Remediation of oil spills under sea ice

#53
20180023375
2018-01-25

Vertical drilling and fracturing methodology

#54
20170342814
2017-11-30

Low-frequency DAS SNR improvement

#55
20170275978
2017-09-28

Hydrocarbon recovery process exploiting multiple induced fractures

#56
20170248006
2017-08-31

Method for hydraulic communication with target well from relief well

#57
20170247990
2017-08-31

METHOD FOR DRILLING AND FRACTURE TREATING MULTIPLE WELLBORES

#58
20170211360
2017-07-27

System, method and apparatus for creating an electrical glow discharge

#59
20170145757
2017-05-25

Multi-flow pipe and pipe couplings therefor for use in fracture flow hydrocarbon recovery processes

#60
20170081950
2017-03-23

Thermal conditioning of fishbone well configurations

#61
20170009128
2017-01-12

METHODS FOR ENHANCING OIL RECOVERY USING COMPLEX NANO-FLUIDS

#62
20160376882
2016-12-29

Gas diverter for well and reservoir stimulation

#63
20160326859
2016-11-10

Diagnostic lateral wellbores and methods of use

#64
20160281480
2016-09-29

Method for increasing gas recovery in fractures proximate fracture treated wellbores

#65
20160237799
2016-08-18

Method of acquiring information of hydraulic fracture geometry for evaluating and optimizing well spacing for multi-well pad

#66
20160230526
2016-08-11

Placement and uses of lateral assisting wellbores and/or kick-off wellbores

#67
20160115771
2016-04-28

System and method for performing downhole stimulation operations

#68
20160047207
2016-02-18

System and method for performing downhole stimulation operations

#69
20150152719
2015-06-04

Enhanced secondary recovery of oil and gas in tight hydrocarbon reservoirs

#70
20150083398
2015-03-26

Producing hydrocarbons

#71
20150047832
2015-02-19

Targeted oriented fracture placement using two adjacent wells in subterranean porous formations

#72
20150013969
2015-01-15

SYSTEMS AND METHODS FOR IMPROVING RESERVOIR FLUID RECOVERY FROM FRACTURED SUBTERRANEAN FORMATIONS

#73
20150007996
2015-01-08

Method for producing oil from induced fractures using a single wellbore and multiple-channel tubing

#74
20150000907
2015-01-01

SYSTEMS AND METHODS FOR PRODUCING DIMETHYL SULFIDE FROM SOUR GAS

#75
20140246194
2014-09-04

Control fracturing in unconventional reservoirs

#76
20140222405
2014-08-07

System and method for performing downhole stimulation operations

#77
20140216744
2014-08-07

Method of intersecting a first well bore by a second well bore

#78
20140136172
2014-05-15

Methods and systems of modeling hydrocarbon flow from layered shale formations

#79
20140076554
2014-03-20

Method for improved gravity drainage in a hydrocarbon formation

#80
20140069636
2014-03-13

Resistive heater for in situ formation heating

#81
20130277050
2013-10-24

Interacting hydraulic fracturing

#82
20130231908
2013-09-05

Methods and systems of modeling hydrocarbon flow from kerogens in a hydrocarbon bearing formation

#83
20130228337
2013-09-05

Fluid injection in light tight oil reservoirs

#84
20130180712
2013-07-18

Method for accelerating heavy oil production

#85
20120305318
2012-12-06

Forming oriented fissures in a subterranean target zone

#86
20120185225
2012-07-19

System and method for performing downhole stimulation operations

#87
20120179444
2012-07-12

System and method for performing downhole stimulation operations

#88
20120152536
2012-06-21

Heat generating system for enhancing oil recovery

#89
20110192601
2011-08-11

Method for drilling and fracture treating multiple wellbores

#90
20110174488
2011-07-21

ACCELERATED START-UP IN SAGD OPERATIONS

#91
20100307756
2010-12-09

GEOTHERMAL CIRCULATION SYSTEM

#92
20100272515
2010-10-28

METHOD OF DEVELOPING AND PRODUCING DEEP GEOTHERMAL RESERVOIRS

#93
20100181114
2010-07-22

METHOD OF INTERCONNECTING SUBTERRANEAN BOREHOLES

#94
20100078220
2010-04-01

Drilling and opening reservoirs using an oriented fissure

#95
20100078218
2010-04-01

Method of drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow

#96
20100031653
2010-02-11

Method and device for the utilization of supercritical subsurface steam in combination with supercritical thermal and hydraulic power stations

#97
20090236103
2009-09-24

Slurrified heavy oil recovery process

#98
20090200032
2009-08-13

System, method and apparatus for creating an electrical glow discharge

#99
20090159272
2009-06-25

Monitoring, controlling and enhancing processes while stimulating a fluid-filled borehole

#100
20090065253
2009-03-12

Method and system for increasing production of a reservoir

#101
20080271885
2008-11-06

Granular electrical connections for in situ formation heating

#102
20080230219
2008-09-25

Resistive heater for in situ formation heating

#103
20070223999
2007-09-27

Method of developing and producing deep geothermal reservoirs

#104
20070158072
2007-07-12

Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making

#105
20070108201
2007-05-17

Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration

#106
20050269098
2005-12-08

Method of increasing productivity and recovery of wells in oil and gas fields

#107
19287010
2026-03-31

Maximizing stimulation efficiency and contact area for heat harvesting

#108
18801992
2025-03-11

Enhancing connectivity between injector and producer wells using sequenced stimulation

#109
17957055
2023-10-03

Changing calcium carbonate particle size with starch for reservoir fluids

#110
17488907
2023-02-21

Flow control for geothermal well