ClassID:

135606

E21B43/114 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Perforators; Permeators Perforators using direct fluid action on the wall to be perforated , e.g. abrasive jets

Recent Application in this class:
#1
20260153017
2026-06-04

PERFORATOR TOOL

#2
20260028900
2026-01-29

REAR-MOUNTED DOUBLE-CHANNEL ABRASIVE JET CUTTING DEVICE

#3
20250327384
2025-10-23

FORMING PERTURBED IN-LINE PERFORATION PAIRS

#4
20250327383
2025-10-23

PERFORATING TOOL WITH A HYDRAULICALLY ACTUATED ASSEMBLY

#5
20250327382
2025-10-23

FORMING PERTURBED IN-LINE PERFORATIONS

#6
20250290377
2025-09-18

COILED TUBING SYSTEMS AND METHODS FOR GEOTHERMAL WELLS

#7
20250250871
2025-08-07

Fluid-Driven Dual-Mode Circulation Tool

#8
20250243733
2025-07-31

DETONATION MODULE

#9
20250020049
2025-01-16

WELL COMPLETION SYSTEMS AND METHODS

#10
20240426199
2024-12-26

Stimulating wells created by underbalanced coiled tubing drilling

#11
20240247573
2024-07-25

WELL INJECTION AND PRODUCTION METHODS, APPARATUS AND SYSTEMS

#12
20240229617
2024-07-11

DETONATION MODULE

#13
20240133275
2024-04-25

Detonation module

#14
20240076961
2024-03-07

METHOD OF GEOTHERMAL DRIVEN CO2 CATALYTIC REDUCTION FOR ENHANCING CO2 SEQUESTRATION AND OIL RECOVERY

#15
20240035354
2024-02-01

ANNULUS REMEDIATION SYSTEM AND METHOD

#16
20230304380
2023-09-28

Energy Retaining Toe Valve

#17
20230127815
2023-04-27

MULTI-ZONE PERFORATE AND TREAT SYSTEM AND METHOD

#18
20230095193
2023-03-30

Single trip wellbore cleaning and sealing system and method

#19
20230026272
2023-01-26

Energy Retaining Toe Valve

#20
20220412194
2022-12-29

Perforating torch apparatus and method

#21
20220307358
2022-09-29

Well injection and production methods, apparatus and systems

#22
20220307351
2022-09-29

DOWNHOLE TOOL WITH FUEL SYSTEM

#23
20220213773
2022-07-07

Drilling-slitting-sealing-fracturing device and method for a deep low-permeability gassy coal seam

#24
20220178229
2022-06-09

Wellbore shaped perforation assembly

#25
20220154574
2022-05-19

Method and system for determining well delivery contributions using artificial intelligence

#26
20220145715
2022-05-12

Pump down pipe severing tool

#27
20220010664
2022-01-13

Method for injecting fluid into a formation to produce oil

#28
20210381353
2021-12-09

Hybrid stimulation tool and related methods

#29
20210372218
2021-12-02

Non-explosive downhole perforating and cutting tools

#30
20210355796
2021-11-18

PROPELLANT CONTAINER FOR A PERFORATING GUN

#31
20210324733
2021-10-21

Differential velocity sensor

#32
20210254611
2021-08-19

Pump valve assembly

#33
20210254439
2021-08-19

Stimulation treatment using accurate collision timing of pressure pulses or waves

#34
20210230956
2021-07-29

Down well pipe cutter having a plurality of cutting heads

#35
20210215040
2021-07-15

Solubility-based wellbore removal operations

#36
20210189865
2021-06-24

Differential velocity sensor

#37
20210189844
2021-06-24

Device for jet packing and fracturing and tubular column comprising same

#38
20210172307
2021-06-10

Injection valve for injecting randomly sized and shaped items into high pressure lines

#39
20210108491
2021-04-15

Integrated construction method of fracturing and tertiary oil recovery for low-permeability reservoir

#40
20210079766
2021-03-18

Well production enhancement systems and methods to enhance well production

#41
20210069863
2021-03-11

High-pressure abrasive fluid injection using clear fluid pump

#42
20210017839
2021-01-21

Multi-zone perforate and treat system and method

#43
20200378231
2020-12-03

Frac pulser system and method of use thereof

#44
20200355055
2020-11-12

Pressure controlled wellbore treatment

#45
20200355037
2020-11-12

Non-explosive downhole perforating and cutting tools

#46
20200256173
2020-08-13

Stimulating U-shape wellbores

#47
20200208484
2020-07-02

Method for cutting a tube or pipe

#48
20200115997
2020-04-16

Apparatus and method for abrasive perforating and clean-out

#49
20200080382
2020-03-12

Drill-power-based directional hydraulic fracturing system for downhole quick slotting and method thereof

#50
20190353006
2019-11-21

TOOLS AND METHODS FOR USE IN COMPLETION OF A WELLBORE

#51
20190316441
2019-10-17

TOOLS AND METHODS FOR USE IN COMPLETION OF A WELLBORE

#52
20190242230
2019-08-08

System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well

#53
20190226308
2019-07-25

Methods and systems for recovering oil from subterranean reservoirs

#54
20190211641
2019-07-11

Down well pipe cutter having a plurality of cutting heads

#55
20190195056
2019-06-27

Propellant container for a perforating gun

#56
20190186243
2019-06-20

Thermal cutter

#57
20190162035
2019-05-30

Plugging devices and deployment in subterranean wells

#58
20190162034
2019-05-30

Plugging devices and deployment in subterranean wells

#59
20190145221
2019-05-16

Flapper bypass tool

#60
20190145208
2019-05-16

Method for cutting a tube or pipe

#61
20190112902
2019-04-18

Treatment isolation in restimulations with inner wellbore casing

#62
20190106968
2019-04-11

Methods and systems for utilizing an inner diameter of a tool for jet cutting, hydraulically setting packer and shutting off circulation tool simultaneously

#63
20190085685
2019-03-21

Differential velocity sensor

#64
20190032406
2019-01-31

Steerable borehole excavation apparatus

#65
20190032405
2019-01-31

Guidance system for a downhole boring device

#66
20190017329
2019-01-17

Degradable abrasive for erosive jet cutting

#67
20180347331
2018-12-06

Method for creating multi-directional Bernoulli-induced fractures with vertical mini-holes in deviated wellbores

#68
20180340401
2018-11-29

Method and system for creating unloading slots in oil and gas wells by stretch-slotting perforation

#69
20180320497
2018-11-08

High-pressure jetting and data communication during subterranean perforation operations

#70
20180298740
2018-10-18

Method for fracturing a formation

#71
20180266244
2018-09-20

Systems and methods for performing hydraulic fracturing in vertically heterogenous regions

#72
20180252078
2018-09-06

Abrasive perforator with fluid bypass

#73
20180238137
2018-08-23

Apparatus and method for opening and closing in multiple cycles a downhole sleeve using an intervention tool

#74
20180209259
2018-07-26

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

#75
20180187516
2018-07-05

Downhole bypass tool

#76
20180179877
2018-06-28

Method of increasing productivity of oil and gas recovery from previously used wells

#77
20180163524
2018-06-14

Downhole wellbore high power laser heating and fracturing stimulation and methods

#78
20180112506
2018-04-26

Jetting apparatus for fracturing applications

#79
20180094510
2018-04-05

Methods and systems for utilizing an inner diameter of a tool for jet cutting, hydraulically setting packers and shutting off circulation tool simultaneously

#80
20180087339
2018-03-29

Tubing removal system

#81
20180045010
2018-02-15

Plugging devices and deployment in subterranean wells

#82
20180038207
2018-02-08

Jet perforating and cutting method

#83
20180023375
2018-01-25

Vertical drilling and fracturing methodology

#84
20180016884
2018-01-18

Method of increasing productivity of oil and gas recovery from previously used wells

#85
20170362935
2017-12-21

Workflows to address localized stress regime heterogeneity to enable hydraulic fracturing

#86
20170335651
2017-11-23

Plugging device deployment in subterranean wells

#87
20170335646
2017-11-23

Non-explosive downhole perforating and cutting tools

#88
20170314364
2017-11-02

TOOLS AND METHODS FOR USE IN COMPLETION OF A WELLBORE

#89
20170292344
2017-10-12

Methods of completing a well and apparatus therefor

#90
20170292343
2017-10-12

Methods of completing a well and apparatus therefor

#91
20170275972
2017-09-28

Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation

#92
20170260838
2017-09-14

System and Method for Perforating and Tunneling Cased Wells

#93
20170191358
2017-07-06

Flow conditioning openings

#94
20170183931
2017-06-29

Fracking tool further having a dump port for sand flushing, and method of fracking a formation using such tool

#95
20170159418
2017-06-08

Wellbore tubulars including a plurality of selective stimulation ports and methods of utilizing the same

#96
20170145782
2017-05-25

Casing expansion for well plugging

#97
20170122082
2017-05-04

Jet cutter having a truncated liner at apex

#98
20170107786
2017-04-20

Flow control in subterranean wells

#99
20170107785
2017-04-20

Flow control in subterranean wells

#100
20170044863
2017-02-16

Method of sealing a fracture in a wellbore and sealing system

#101
20170037707
2017-02-09

Downhole tool

#102
20170030173
2017-02-02

Method for injecting fluid into a formation to produce oil

#103
20170030169
2017-02-02

Plugging devices and deployment in subterranean wells

#104
20170030157
2017-02-02

Multifunction wellbore tubular penetration tool

#105
20170030156
2017-02-02

Method and apparatus for severing a drill string

#106
20170009554
2017-01-12

Using cement slurries in hydrajetting tools

#107
20170009124
2017-01-12

Stabilizing formation laminae in coal seam wellbores

#108
20160348467
2016-12-01

Plugging device deployment in subterranean wells

#109
20160341017
2016-11-24

Methods Using Viscoelastic Surfactant Based Abrasive Fluids for Perforation and Cleanout

#110
20160326852
2016-11-10

Methods for processing production formations by helicoid perforation

#111
20160326834
2016-11-10

Multi-cycle circulating valve assembly

#112
20160319631
2016-11-03

Flow control in subterranean wells

#113
20160312588
2016-10-27

Method and apparatus for completing a multi-stage well

#114
20160305210
2016-10-20

Perforator with a mechanical diversion tool and related methods

#115
20160298423
2016-10-13

TOOLS AND METHODS FOR USE IN COMPLETION OF A WELLBORE

#116
20160298021
2016-10-13

Methods and compositions for using temporary, slow degrading, particulate agents in a subterranean formation

#117
20160298019
2016-10-13

Methods and compositions for using temporary, slow degrading, particulate agents in a subterranean formation

#118
20160290115
2016-10-06

RE-FRACTURING A FRACTURE STIMULATED SUBTERRANEAN FORMATION

#119
20160273313
2016-09-22

Jetting tool for boosting pressures at target wellbore locations

#120
20160258258
2016-09-08

Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation

#121
20160201440
2016-07-14

FRACTURE INITIATION WITH AUXILIARY NOTCHES

#122
20160168969
2016-06-16

Method for Increasing Productivity of Wells

#123
20160160619
2016-06-09

Downhole hydraulic Jetting Assembly

#124
20160160618
2016-06-09

High power laser-fluid guided beam for open hole oriented fracturing

#125
20160160595
2016-06-09

Internal tractor system for downhole tubular body

#126
20160160568
2016-06-09

Steerable hydraulic jetting nozzle, and guidance system for downhole boring device

#127
20160153267
2016-06-02

Jet perforating device for creating a wide diameter perforation

#128
20160145989
2016-05-26

Well completion

#129
20160145988
2016-05-26

Methods and systems for treatment of subterranean formations

#130
20160138364
2016-05-19

Wettability altering fluids during downhole operations

#131
20160130927
2016-05-12

Methods, apparatus and products for production of fluids from subterranean formations

#132
20160115772
2016-04-28

System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well

#133
20160076350
2016-03-17

Method and process for extracting shale oil and gas by fracturing and chemical retorting in oil shale in-situ horizontal well

#134
20160053592
2016-02-25

APPARATUS AND METHOD FOR ABRASIVE JET PERFORATING

#135
20160024885
2016-01-28

Downhole bypass tool

#136
20160017699
2016-01-21

Method for using a downhole tool for guiding a cutting tool

#137
20160017698
2016-01-21

Downhole tool for guiding a cutting tool

#138
20160010429
2016-01-14

Tools and methods for use in completion of a wellbore

#139
20160003018
2016-01-07

Methods and compositions for use in oil and/or gas wells comprising a terpene alcohol

#140
20160003015
2016-01-07

Method to create connectivity between wellbore and formation

#141
20160003003
2016-01-07

Tools and methods for use in completion of a wellbore

#142
20150337634
2015-11-26

Cutting tool

#143
20150337629
2015-11-26

Using dynamic underbalance to increase well productivity

#144
20150337612
2015-11-26

Method for forming slots in a wellbore casing

#145
20150337193
2015-11-26

Acid soluble abrasive material

#146
20150292306
2015-10-15

Venting system for a shaped charge in the event of deflagration

#147
20150285049
2015-10-08

Method of Drilling for and Producing Oil and Gas from Earth Boreholes

#148
20150275641
2015-10-01

Method of treating a downhole formation using a downhole packer

#149
20150267514
2015-09-24

Pressure actuated flow control in an abrasive jet perforating tool

#150
20150247378
2015-09-03

Completing a multi-stage well

#151
20150247376
2015-09-03

Corrodible wellbore plugs and systems and methods including the same

#152
20150233218
2015-08-20

Hydraulic cutting tool, system and method for controlled hydraulic cutting through a pipe wall in a well

#153
20150197686
2015-07-16

Treatment fluids comprising viscosifying agents and methods of using the same

#154
20150159468
2015-06-11

Completion, method of completing a well, and a one trip completion arrangement

#155
20150144342
2015-05-28

Downhole bypass tool

#156
20150144341
2015-05-28

System and Method for Forming Cavities

#157
20150114639
2015-04-30

Re-fracture apparatus and method for wellbore

#158
20150107837
2015-04-23

Open hole fracing system

#159
20150107836
2015-04-23

Well system with annular space around casing for a treatment operation

#160
20150101811
2015-04-16

Method of treating a downhole formation using a downhole packer

#161
20150090449
2015-04-02

Cement masking system and method thereof

#162
20150090448
2015-04-02

Downhole system having compressable and expandable member to cover port and method of displacing cement using member

#163
20150083424
2015-03-26

Apparatus and method for high pressure abrasive fluid injection

#164
20150075793
2015-03-19

Apparatus and method for jet perforating and cutting tool

#165
20150027709
2015-01-29

Non-ballistic tubular perforating system and method

#166
20150027692
2015-01-29

Multi-interval wellbore treatment method

#167
20140338911
2014-11-20

Methods and compositions for use in oil and/or gas wells

#168
20140305648
2014-10-16

Tools and methods for use in completion of a wellbore

#169
20140299330
2014-10-09

Wireless activatable valve assembly

#170
20140290947
2014-10-02

Radiused ID baffle

#171
20140290935
2014-10-02

Stimulation method

#172
20140231064
2014-08-21

Insert assembly for downhole perforating apparatus

#173
20140216747
2014-08-07

Method of using a downhole tool with erosion resistant layer

#174
20140216713
2014-08-07

Downhole tool with erosion resistant layer

#175
20140216712
2014-08-07

DOWNHOLE TOOL WITH EROSION RESISTANT LAYER

#176
20140182849
2014-07-03

Wellbore servicing assemblies and methods of using the same

#177
20140158357
2014-06-12

NOZZLE SELECTIVE PERFORATING JET ASSEMBLY

#178
20140124201
2014-05-08

Nozzle selective perforating jet assembly

#179
20140102705
2014-04-17

Apparatus and method for abrasive jet perforating

#180
20140096966
2014-04-10

Method and Apparatus for Completion of Heavy Oil Unconsolidated Sand Reservoirs

#181
20140083709
2014-03-27

Acid soluble abrasive material and method of use

#182
20140069648
2014-03-13

Apparatus and method for isolating flow in a downhole tool assembly

#183
20140069647
2014-03-13

Cased hole chemical perforator

#184
20140048333
2014-02-20

Drill pipe perforator apparatus and method of use

#185
20140014362
2014-01-16

Opening a conduit cemented in a well

#186
20140014342
2014-01-16

Method of Treatment and Perforation of Near-Well Zone

#187
20140014333
2014-01-16

Method of Evaluation of Deposits and Opening of Productive Formations

#188
20140008071
2014-01-09

Wellbore servicing assemblies and methods of using the same

#189
20130312963
2013-11-28

Method for combined cleaning and plugging in a well, a washing tool for directional washing in a well, and uses thereof

#190
20130299173
2013-11-14

Downhole assembly with debris relief, and method for using same

#191
20130284440
2013-10-31

SYSTEM, APPARATUS AND METHOD FOR ABRASIVE JET FLUID CUTTING

#192
20130264054
2013-10-10

Multi-interval wellbore treatment method

#193
20130213655
2013-08-22

High pressure jet perforation system

#194
20130213636
2013-08-22

System, apparatus and method for abrasive jet fluid cutting

#195
20130192830
2013-08-01

Limited depth abrasive jet cutter

#196
20130180721
2013-07-18

Downhole Fluid Treatment Tool

#197
20130105163
2013-05-02

Method of opening productive formations and a working fluid provided therefor

#198
20130098043
2013-04-25

Hydrajetting nozzle and method

#199
20130062063
2013-03-14

Completing a multi-stage well

#200
20130048306
2013-02-28

APPARATUS AND METHOD FOR PENETRATING CEMENT SURROUNDING A TUBULAR

#201
20120325479
2012-12-27

Coiled tubing bottom hole assembly with packer and anchor assembly

#202
20120312536
2012-12-13

Multi-stage downhole hydraulic stimulation assembly

#203
20120305679
2012-12-06

Hydrajetting nozzle and method

#204
20120305251
2012-12-06

METHOD AND DEVICE FOR CLOSING A WELL IN THE GROUND

#205
20120222870
2012-09-06

Downhole fluid injection systems, COsequestration methods, and hydrocarbon material recovery methods

#206
20120217011
2012-08-30

Apparatus and method for high pressure abrasive fluid injection

#207
20120205108
2012-08-16

Apparatus and method for abrasive perforating and cleanout

#208
20120168163
2012-07-05

Method and apparatus for completing a multi-stage well

#209
20120118562
2012-05-17

SYSTEM, APPARATUS AND METHOD FOR ABRASIVE JET FLUID CUTTING

#210
20120118557
2012-05-17

Methods and devices for one trip plugging and perforating of oil and gas wells

#211
20120111566
2012-05-10

Apparatus and method for stimulating subterranean formations

#212
20120103618
2012-05-03

Valve for a sand slurry system

#213
20120090847
2012-04-19

Tools and methods for use in completion of a wellbore

#214
20120031615
2012-02-09

Abrasive perforator with fluid bypass

#215
20120024519
2012-02-02

Methods and devices for one trip plugging and perforating of oil and gas wells

#216
20120018148
2012-01-26

Real-time field friction reduction meter and method of use

#217
20110284224
2011-11-24

Cutting dart and method of using the cutting dart

#218
20110272157
2011-11-10

Slot perforating tool

#219
20110209868
2011-09-01

Fracturing a stress-altered subterranean formation

#220
20110203799
2011-08-25

Open Hole Fracing System

#221
20110198082
2011-08-18

Downhole tool assembly with debris relief, and method for using same

#222
20110162846
2011-07-07

Multiple Interval Perforating and Fracturing Methods

#223
20110146989
2011-06-23

Apparatus and method for abrasive jet perforating and cutting of tubular members

#224
20110127038
2011-06-02

Method of hydraulically fracturing a formation

#225
20110114316
2011-05-19

Methods and Devices for One Trip Plugging and Perforating of Oil and Gas Wells

#226
20110011587
2011-01-20

Device for the dynamic under balance and dynamic over balance perforating in a borehole

#227
20110005759
2011-01-13

FRACTURING SYSTEM AND METHOD

#228
20100263868
2010-10-21

Tool and method for abrasive formation of openings in downhole structures

#229
20100243253
2010-09-30

Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool

#230
20100212903
2010-08-26

Apparatus and method for abrasive jet perforating

#231
20100200226
2010-08-12

Bottom hole assembly for wellbore operations

#232
20100147520
2010-06-17

Method of removing a device in an annulus

#233
20100126725
2010-05-27

Coiled tubing bottom hole assembly with packer and anchor assembly

#234
20100126724
2010-05-27

Method and apparatus for isolating a jet forming aperture in a well bore servicing tool

#235
20100122817
2010-05-20

Apparatus and method for servicing a wellbore

#236
20100084137
2010-04-08

Methods and Equipment to Improve Reliability of Pinpoint Stimulation Operations

#237
20100044041
2010-02-25

High rate stimulation method for deep, large bore completions

#238
20100000727
2010-01-07

Apparatus and method for inflow control

#239
20090288884
2009-11-26

Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores

#240
20090288833
2009-11-26

System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well

#241
20090242202
2009-10-01

Method of perforating for effective sand plug placement in horizontal wells

#242
20090211759
2009-08-27

Methods and devices for treating multiple-interval well bores

#243
20090133876
2009-05-28

Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool

#244
20090120645
2009-05-14

System and method for forming cavities in a well

#245
20090107678
2009-04-30

Chemically Enhanced Stimulation of oil/gas formations

#246
20090071640
2009-03-19

Device for cutting a vertical slot-like unloading opening

#247
20090032255
2009-02-05

Apparatus for isolating a jet forming aperture in a well bore servicing tool

#248
20080283299
2008-11-20

Hydrajet tool for ultra high erosive environment

#249
20080277118
2008-11-13

Method and apparatus for jet-fluid abrasive cutting

#250
20080271892
2008-11-06

Radially expandable downhole fluid jet cutting tool having an inflatable member

#251
20080210427
2008-09-04

Methods using fluid stream for selective stimulation of reservoir layers

#252
20080179060
2008-07-31

Hydrajet bottomhole completion tool and process

#253
20080156496
2008-07-03

Methods and devices for treating multiple-interval well bores

#254
20080142226
2008-06-19

Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation

#255
20080142224
2008-06-19

Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation

#256
20080110622
2008-05-15

Methods of isolating hydrajet stimulated zones

#257
20080083538
2008-04-10

Methods and systems for well stimulation using multiple angled fracturing

#258
20080078548
2008-04-03

Methods of fracturing a subterranean formation using a jetting tool and a viscoelastic surfactant fluid to minimize formation damage

#259
20080066913
2008-03-20

Radially expandable downhole fluid jet cutting tool

#260
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