ClassID:

135649

E21B43/263 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Methods for stimulating production by forming crevices or fractures using explosives

Sub-classes:
Recent Application in this class:
#1
20260036030
2026-02-05

SYSTEMS AND METHODS FOR FACILITATING EFFECTIVE FRACTURE INITIATION

#2
20250243739
2025-07-31

Systems and Methods of Initiating Energetic Reactions for Reservoir Stimulation

#3
20250188827
2025-06-12

Tool and Method for Safe Cavity Shot Operations

#4
20250075605
2025-03-06

Fluidized coal mining method utilizing self-energy storage of coal seam

#5
20240287886
2024-08-29

PENETRATOR AND DISPENSERS AND METHODS OF USE

#6
20240151129
2024-05-09

Systems and methods of initiating energetic reactions for reservoir stimulation

#7
20240110465
2024-04-04

Cracking permeability increasing method combining hydraulic fracturing and methane in-situ combustion explosion

#8
20240068346
2024-02-29

Penetrator and dispensers and methods of use

#9
20230279763
2023-09-07

Autonomous pressure triggered well livening tool with exothermic nitrogen producing chemistry

#10
20230193746
2023-06-22

Microseismic Processing Using Fiber-Derived Flow Data

#11
20230152073
2023-05-18

Transport of explosives

#12
20220381123
2022-12-01

Systems and methods for steam fracking

#13
20220381102
2022-12-01

Tool

#14
20220349278
2022-11-03

Cluster gun system

#15
20220348819
2022-11-03

Flow control in subterranean wells

#16
20220290542
2022-09-15

Fracturing of a deep or wet well utilizing an air/fuel mixture and multiple stage restriction orifice assembly

#17
20220162932
2022-05-26

High energy fracking device for focused shock wave generation for oil and gas recovery applications

#18
20220090479
2022-03-24

Integrated coaxial perforating acidizing operation

#19
20220074295
2022-03-10

Methods and systems of creating fractures in a subsurface formation

#20
20220074286
2022-03-10

Waveform energy generation systems and methods of enhancing matrix permeability in a subsurface formation

#21
20220049590
2022-02-17

DEPLOYMENT TOOL & METHODOLOGY FOR RUNNING AND SETTING FRAC PLUGS AND RELEASING FRAC BALLS

#22
20220042775
2022-02-10

Stackable propellant module for gas generation

#23
20220003097
2022-01-06

Device and method to stimulate a geologic formation with electrically controllable liquid propellant-waterless fracturing

#24
20210355794
2021-11-18

Cluster gun system

#25
20210318456
2021-10-14

Acoustic proppant for fracture diagnostic

#26
20210301633
2021-09-30

Non-explosive CO-based perforation tool for oil and gas downhole operations

#27
20210277759
2021-09-09

Fracturing of a wet well utilizing an air/fuel mixture

#28
20210270115
2021-09-02

ENHANCING TRANSVERSE FRACTURES WHILE PERFORMING HYDRAULIC FRACTURING WITHIN AN OPENHOLE BOREHOLE

#29
20210254443
2021-08-19

Method and device for conducting explosive-fracturing

#30
20210230991
2021-07-29

Fluid injection treatments in subterranean formations stimulated using propellants

#31
20210207466
2021-07-08

Systems and methods of initiating energetic reactions for reservoir stimulation

#32
20210207465
2021-07-08

Methods for enhancing and maintaining effective permeability of induced fractures

#33
20210148210
2021-05-20

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

#34
20210148209
2021-05-20

DISSOLVABLE EXPLOSIVE PROPPANT STRUCTURES

#35
20210116224
2021-04-22

Multi-firing swivel head probe for electro-hydraulic fracturing in down hole fracking applications

#36
20210079766
2021-03-18

Well production enhancement systems and methods to enhance well production

#37
20210071513
2021-03-11

METHOD AND DEVICE FOR CONDUCTING EXPLOSIVE-FRACTURING

#38
20210071512
2021-03-11

Methods and apparatus for spatially-oriented chemically-induced pulsed fracturing in reservoirs

#39
20200408064
2020-12-31

Flow control in subterranean wells

#40
20200392825
2020-12-17

Apparatus, method, and system for identifying, locating, and accessing addresses of a piping system

#41
20200392824
2020-12-17

Hybrid photonic-pulsed fracturing tool and related methods

#42
20200318465
2020-10-08

Modular charge holder segment

#43
20200308946
2020-10-01

WELL STIMULATION APPARATUS AND A METHOD OF USE THEREOF

#44
20200270974
2020-08-27

Cluster gun system

#45
20200256176
2020-08-13

Enhancing complex fracture networks in subterranean formations

#46
20200190976
2020-06-18

Methods and systems for characterizing fractures in a subterranean formation

#47
20200040714
2020-02-06

Utilizing electrically actuated explosives downhole

#48
20200033101
2020-01-30

Stackable propellant module for gas generation

#49
20200018144
2020-01-16

CHARGE BASED STIMULATION OF ADJACENT WELLS TO FORM INTERCONNECTED FRACTURE NETWORK AND HYDROCARBON PRODUCTION THEREFROM

#50
20200011166
2020-01-09

Fracturing utilizing an air/fuel mixture

#51
20190368329
2019-12-05

Method and device for conducting explosive-fracturing

#52
20190368328
2019-12-05

Fracturing treatments in subterranean formations using electrically controlled propellants

#53
20190368327
2019-12-05

Fracturing treatments in subterranean formation using inorganic cements and electrically controlled propellants

#54
20190353018
2019-11-21

Method and systems for perforating and fragmenting sediments using blasting material

#55
20190316455
2019-10-17

Utilizing electrically actuated explosives downhole

#56
20190309607
2019-10-10

Utilizing electrically actuated explosives downhole

#57
20190271220
2019-09-05

Multi-firing swivel head probe for electro-hydraulic fracturing in down hole fracking applications

#58
20190271219
2019-09-05

METHODS FOR THE ENHANCEMENT AND STIMULATION OF OIL AND GAS PRODUCTION IN SHALES

#59
20190249533
2019-08-15

Energetic charge for propellant fracturing

#60
20190242243
2019-08-08

Microseismic Processing Using Fiber-Derived Flow Data

#61
20190242231
2019-08-08

METHOD FOR STIMULATING OIL AND GAS RESERVOIR VOLUME BY FORMING BRANCH FRACTURES IN MAIN FRACTURE

#62
20190203573
2019-07-04

Multilateral well drilled with underbalanced coiled tubing and stimulated with exothermic reactants

#63
20190153845
2019-05-23

System and method of delivering stimulation treatment by means of gas generation

#64
20190153844
2019-05-23

Systems and methods of initiating energetic reactions for reservoir stimulation

#65
20190153301
2019-05-23

Demolition agent

#66
20190145260
2019-05-16

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

#67
20190136679
2019-05-09

Apparatus, method, and system for identifying, locating, and accessing addresses of a piping system

#68
20190136662
2019-05-09

Flow control in subterranean wells

#69
20190093460
2019-03-28

Reservoir stimulation method and apparatus

#70
20190062623
2019-02-28

Acoustic proppant for fracture diagnostic

#71
20180306010
2018-10-25

Modular charge holder segment

#72
20180266225
2018-09-20

Method and system for perforating and fragmenting sediments using blasting material

#73
20180230781
2018-08-16

Horizontal reservoir description systems

#74
20180203143
2018-07-19

Mapping Fractures using Micro-Seismic Events

#75
20180202277
2018-07-19

USE OF LIQUID AND GEL MONOPROPELLANTS FOR WELL STIMULATION

#76
20180179119
2018-06-28

High Temperature Energetic Formulations

#77
20180149007
2018-05-31

Fracturing utilizing an air/fuel mixture

#78
20180135398
2018-05-17

Safety system for autonomous downhole tool

#79
20180119529
2018-05-03

Apparatus for electromechanically connecting a plurality of guns for well perforation

#80
20180106136
2018-04-19

Refracturing in a multistring casing with constant entrance hole perforating gun system and method

#81
20180087363
2018-03-29

Use of energetic events and fluids to fracture near wellbore regions

#82
20180079696
2018-03-22

REACTIVE GAS SHAPED CHARGE AND METHOD OF USE

#83
20170350244
2017-12-07

Capsules containing micro-proppant and a substance to produce micro-seismic events

#84
20170298720
2017-10-19

Apparatus, method, and system for identifying, locating, and accessing addresses of a piping system

#85
20170275961
2017-09-28

Flow control in subterranean wells

#86
20170211368
2017-07-27

Stripline energy transmission in a wellbore

#87
20170204713
2017-07-20

Method for the enhancement and stimulation of oil and gas production in shales

#88
20170198561
2017-07-13

Apparatus and method for perforating a wellbore casing, and method and apparatus for fracturing a formation

#89
20170198560
2017-07-13

Multi-phasic explosive fracturing system

#90
20170167233
2017-06-15

System and method for perforating a wellbore

#91
20170159420
2017-06-08

Select-fire, downhole shockwave generation devices, hydrocarbon wells that include the shockwave generation devices, and methods of utilizing the same

#92
20170159419
2017-06-08

Selective Stimulation Ports, Wellbore Tubulars That Include Selective Stimulation Ports, And Methods Of Operating The Same

#93
20170159418
2017-06-08

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

#94
20170145295
2017-05-25

Methods of enhancing and generating microfractures in shale formations

#95
20170138164
2017-05-18

System for fracturing an underground geologic formation

#96
20170138163
2017-05-18

Fracturing device using shockwave of plasma reaction and method for extracting shale gas using same

#97
20170138128
2017-05-18

System for generating a hole using projectiles

#98
20170130570
2017-05-11

Methods and apparatus for spatially-oriented chemically-induced pulsed fracturing in reservoirs

#99
20170107806
2017-04-20

Encapsulated microenergetic material

#100
20170074043
2017-03-16

Method and apparatus for increasing well productivity

#101
20170016703
2017-01-19

Detonation control

#102
20170009563
2017-01-12

Stimulation methods and apparatuses utilizing downhole tools

#103
20160349029
2016-12-01

Detonation command and control

#104
20160348466
2016-12-01

Flow control in subterranean wells

#105
20160341035
2016-11-24

Collapse initiated explosive pellet

#106
20160341018
2016-11-24

Method for the enhancement of injection activities and stimulation of oil and gas production

#107
20160319644
2016-11-03

Method for extracting methane from coal beds and from penetrating rock enclosing a coal bed

#108
20160298438
2016-10-13

Refracturing method using spaced shaped charges straddled with isolators on a liner string

#109
20160186536
2016-06-30

Coaxial perforating charge and its perforation method for self-eliminating compacted zone

#110
20160177694
2016-06-23

METHOD FOR DELIVERING OR FOR PREPARING THE DELIVERY OF FLUID MEDIA

#111
20160153272
2016-06-02

Casings for use in a system for fracturing rock within a bore

#112
20160153271
2016-06-02

Multi-stage geologic fracturing

#113
20160145990
2016-05-26

Fluid transport systems for use in a downhole explosive fracturing system

#114
20160108708
2016-04-21

Apparatus and method employing perforating gun for same location multiple reservoir penetrations

#115
20160084059
2016-03-24

Methods and apparatus for downhole propellant-based stimulation with wellbore pressure containment

#116
20160084055
2016-03-24

Downhole stimulation tools and related methods of stimulating a producing formation

#117
20160053611
2016-02-25

System and method for using pressure pulses for fracture stimulation performance enhancement and evaluation

#118
20160053164
2016-02-25

HYDRAULIC FRACTURING APPLICATIONS EMPLOYING MICROENERGETIC PARTICLES

#119
20160033248
2016-02-04

Detonation command and control

#120
20150316359
2015-11-05

Charge case fragmentation control for gun survival

#121
20150275649
2015-10-01

Apparatus, method, and system for identifying, locating, and accessing addresses of a piping system

#122
20150275643
2015-10-01

Location and stimulation methods and apparatuses utilizing downhole tools

#123
20150275642
2015-10-01

Stimulation devices, initiation systems for stimulation devices and related methods

#124
20150275616
2015-10-01

Sacrificial isolation member for fracturing subsurface geologic formations

#125
20150252663
2015-09-10

FLOWABLE COMPOSITION, METHOD FOR PRODUCING THE FLOWABLE COMPOSITION AND METHOD FOR FRACKING A SUBTERRANEAN FORMATION USING THE FLOWABLE COMPOSITION

#126
20150252662
2015-09-10

Process For Directed Fracking Of An Underground Formation Into Which At Least One Directional Well Has Been Sunk

#127
20150129230
2015-05-14

Pneumatic system and process for fracturing rock in geological formations

#128
20150129218
2015-05-14

Fracturing sequential operation method using signal responsive ported subs and packers

#129
20150107831
2015-04-23

Structure for gunpowder charge in multi-frac composite perforating device

#130
20150107830
2015-04-23

Method and apparatus for generating seismic pulses to map subterranean fractures

#131
20150107819
2015-04-23

Hydraulically-Actuated Explosive Downhole Tool

#132
20150021023
2015-01-22

Encapsulated microenergetic material

#133
20140374084
2014-12-25

System for fracturing an underground geologic formation

#134
20140373743
2014-12-25

Explosive assembly and method

#135
20140366761
2014-12-18

Detonation control

#136
20140338894
2014-11-20

Geologic fracturing method and resulting fractured geologic structure

#137
20140338552
2014-11-20

Detonation command and control

#138
20140290935
2014-10-02

Stimulation method

#139
20140251612
2014-09-11

Consumable downhole packer or plug

#140
20140238678
2014-08-28

Method and apparatus for ballistic tailoring of propellant structures and operation thereof for downhole stimulation

#141
20140158356
2014-06-12

Encapsulated explosive pellet

#142
20140134057
2014-05-15

Chemical production system

#143
20140131035
2014-05-15

Safety system for autonomous downhole tool

#144
20140060839
2014-03-06

FRACTURING A WELL FORMATION

#145
20140020896
2014-01-23

System and method employing perforating gun for same location multiple reservoir penetrations

#146
20130344448
2013-12-26

High pressure combustor with hot surface ignition

#147
20130341031
2013-12-26

Insensitive explosive composition and method of fracturing rock using an extrudable form of the composition

#148
20130341029
2013-12-26

High strain rate method of producing optimized fracture networks in reservoirs

#149
20130341026
2013-12-26

Fracturing apparatus

#150
20130341015
2013-12-26

Downhole combustor

#151
20130340691
2013-12-26

High efficiency direct contact heat exchanger

#152
20130327529
2013-12-12

FAR FIELD FRACTURING OF SUBTERRANEAN FORMATIONS

#153
20130292112
2013-11-07

COMPOSITION AND METHOD FOR LOCATING PRODUCTIVE ROCK FRACTURES FOR FLUID FLOW

#154
20130206475
2013-08-15

Method to optimize perforations for hydraulic fracturing in anisotropic earth formations

#155
20130199781
2013-08-08

Method and System for Fracture Stimulation by Formation Displacement

#156
20130168077
2013-07-04

Hydraulically-Actuated Propellant Stimulation Downhole Tool

#157
20130161007
2013-06-27

PULSE DETONATION TOOL, METHOD AND SYSTEM FOR FORMATION FRACTURING

#158
20130138254
2013-05-30

Automated controls for pump down operations

#159
20130098681
2013-04-25

Combined fracturing and perforating method and device for oil and gas well

#160
20130035863
2013-02-07

System and method for fractionation of a well using a three dimensional wellbore profile with an executive dashboard

#161
20130032337
2013-02-07

Explosive pellet

#162
20130000908
2013-01-03

System and method for fracturing rock in tight reservoirs

#163
20120305252
2012-12-06

Insensitive explosive composition and method of fracturing rock using an extrudable form of the composition

#164
20120251429
2012-10-04

Systems and methods of producing chemical compounds

#165
20120138302
2012-06-07

Device and method for well stimulation

#166
20120067582
2012-03-22

Apparatus and method for fracturing portions of an earth formation

#167
20120037368
2012-02-16

CONTROLLED RELEASE PROPPANT

#168
20120037366
2012-02-16

Burst disk-actuated shaped charges, systems and methods of use

#169
20110259230
2011-10-27

Electrode ignition and control of electrically ignitable materials

#170
20110247816
2011-10-13

Method and Apparatus for Increasing Well Productivity

#171
20110240183
2011-10-06

Method and apparatus for stimulating wells with propellants

#172
20110139433
2011-06-16

Hydraulically-actuated propellant stimulation downhole tool

#173
20110108277
2011-05-12

Formation treatment using electromagnetic radiation

#174
20100258292
2010-10-14

Propellant fracturing system for wells

#175
20100252253
2010-10-07

INJECTION OF TREATMENT MATERIALS INTO A GEOLOGICAL FORMATION SURROUNDING A WELL BORE

#176
20100147587
2010-06-17

WELL COMPLETION APPARATUS AND METHODS

#177
20100132946
2010-06-03

Method for the Enhancement of Injection Activities and Stimulation of Oil and Gas Production

#178
20100006193
2010-01-14

Application of high temperature explosive to downhole use

#179
20090308613
2009-12-17

Method and apparatus to treat a well with high energy density fluid

#180
20090301721
2009-12-10

Downhole cyclic pressure pulse generator and method for increasing the permeability of pay reservoir

#181
20090283260
2009-11-19

Methods of initiating intersecting fractures using explosive and cryogenic means

#182
20090260821
2009-10-22

Method and apparatus for stimulating wells with propellants

#183
20090223668
2009-09-10

Sympathetic ignition closed packed propellant gas generator

#184
20090211746
2009-08-27

High-energy gas fracture apparatus for through-tubing operations

#185
20090159286
2009-06-25

METHOD OF TREATING SUBTERRANEAN RESERVOIRS

#186
20080264289
2008-10-30

PROPELLANT FOR FRACTURING WELLS

#187
20080164030
2008-07-10

Process for two-step fracturing of subsurface formations

#188
20080103948
2008-05-01

Method of doing business by distributing high energy gas fracturing devices

#189
20070163775
2007-07-19

Injection of treatment materials into a geological formation surrounding a well bore

#190
20070017678
2007-01-25

High energy gas fracturing charge device and method of use

#191
20060243443
2006-11-02

Multi-perf fracturing process

#192
20060237190
2006-10-26

Stimulation tool having a sealed ignition system

#193
20060185898
2006-08-24

Method and apparatus for stimulating wells with propellants

#194
20060185839
2006-08-24

Propellant cartridge with restrictor plugs for fracturing wells

#195
20060076131
2006-04-13

Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life

#196
20060070739
2006-04-06

Propellant fracturing of wells

#197
20060048664
2006-03-09

Propellant for fracturing wells

#198
20050109509
2005-05-26

Propellant ignition assembly and process

#199
20050045336
2005-03-03

Propellant treatment and continuous foam removal of well debris

#200
20050045334
2005-03-03

Process of using a propellant treatment and continuous foam removal of well debris and apparatus therefore

#201
18228739
2023-12-12

Multi-stage perforation and shock wave combined device and method for initial fracture enhancement

#202
17983826
2023-06-06

Downhole explosion robot based on planetary roller screw telescoping and traction method thereof

#203
15481683
2017-09-19

Constant entrance hole perforating gun system and method

#204
14206928
2016-09-27

Hydraulically-actuated propellant stimulation downhole tool

#205
14177449
2016-10-18

High energy gas fracturing device