Patents-Review.com
ClassID:

135447 ⎘

E21B31/107 - CPC Classification

Classification description:

Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars

Sub-classes:
Recent Application in this class:
#1
20250305373
2025-10-02

Universal Wireline Standoff

 #2
20250020036
2025-01-16

WIRELINE POWERED DOWN JARRING DEVICE AND METHOD

 #3
20240159118
2024-05-16

System and method to free differentially stuck pipe

 #4
20240117698
2024-04-11

Integration of stored kinetic energy in downhole electrical interval control valves

 #5
20240117683
2024-04-11

IMPACT DEVICE FOR A DRILL STRING

 #6
20240093562
2024-03-21

Release lugs for a jarring device

 #7
20240076958
2024-03-07

DOWNHOLE PRESSURE WAVE GENERATING DEVICE

 #8
20240068315
2024-02-29

Predetermined load release device for a jar

 #9
20240052719
2024-02-15

TWO-STAGE TORQUE RELEASE SUB

 #10
20230313675
2023-10-05

Nested tubulars for drifting a plurality of cylindrical diameters

 #11
20230133516
2023-05-04

Predetermined load release device for a jar

 #12
20230125843
2023-04-27

Modular casing reamer shoe system with jarring capability

 #13
20230066142
2023-03-02

Downhole tool for jarring

 #14
20230064823
2023-03-02

Downhole tool

 #15
20230064658
2023-03-02

Mechanical jar, method and system

 #16
20230038426
2023-02-09

Release lugs for a jarring device

 #17
20220412191
2022-12-29

Downhole pressure wave generating device

 #18
20220341273
2022-10-27

Removing a tubular from a wellbore

 #19
20220235620
2022-07-28

Release Mechanism for a Jarring Tool

 #20
20220213755
2022-07-07

Freeing stuck subterranean service tools

 #21
20220195865
2022-06-23

Method and apparatus of smart jarring system

 #22
20220136355
2022-05-05

Release lugs for a jarring device

 #23
20220010642
2022-01-13

System and method for moving stuck objects in a well

 #24
20210388688
2021-12-16

Release lugs for a jarring device

 #25
20210381331
2021-12-09

Freeing a stuck pipe from a wellbore

 #26
20210363848
2021-11-25

Freeing stuck subterranean service tools

 #27
20210301616
2021-09-30

Downhole tool

 #28
20210230958
2021-07-29

Predetermined load release device for a jar

 #29
20210140259
2021-05-13

Jarring device and method

 #30
20210071502
2021-03-11

Downhole pressure wave generating device

 #31
20210062633
2021-03-04

Freeing stuck tubulars in wellbores

 #32
20210047894
2021-02-18

Downhole jarring tool with electrical pass through

 #33
20210017828
2021-01-21

Dislodging tools, systems and methods for use with a subterranean well

 #34
20200320232
2020-10-08

Conveyance modeling

 #35
20200240228
2020-07-30

Systems and methods for stuck drill string mitigation

 #36
20200232296
2020-07-23

Release mechanism for a jarring tool

 #37
20200217161
2020-07-09

Release lugs for a jarring device

 #38
20200157905
2020-05-21

Downhole release apparatus

 #39
20200149390
2020-05-14

METHOD AND APPARATUS FOR PERFORMING A SURVEY OF TUBING WHICH IS STUCK IN A BOREHOLE, E.G. FOR DETERMINING A FREE POINT

 #40
20200048976
2020-02-13

Release lugs for a jarring device

 #41
20190301257
2019-10-03

Hydraulic drilling jar with hydraulic lock piston

 #42
20190271204
2019-09-05

Dislodging tools, systems and methods for use with a subterranean well

 #43
20190242207
2019-08-08

Smart drilling jar

 #44
20190234166
2019-08-01

Reaction valve drilling jar system

 #45
20190153801
2019-05-23

Predetermined load release device for a jar

 #46
20190106980
2019-04-11

Drilling plant machine and method of operation

 #47
20190071945
2019-03-07

Jarring apparatus

 #48
20190055804
2019-02-21

Release lugs for a jarring device

 #49
20180283142
2018-10-04

Downhole tools having controlled degradation and method

 #50
20180283141
2018-10-04

Downhole tools having controlled degradation and method

 #51
20180274298
2018-09-27

Percussion device

 #52
20180252064
2018-09-06

Release lugs for a jarring device

 #53
20180179845
2018-06-28

Downhole stuck object removal tool

 #54
20180156003
2018-06-07

Downhole impact apparatus

 #55
20180135374
2018-05-17

SHOCK INDUCEMENT IN CORE BARREL ASSEMBLY

 #56
20180073349
2018-03-15

Impact sensing during jarring operations

 #57
20170218714
2017-08-03

Downhole-Adjusting impact apparatus and methods

 #58
20170204694
2017-07-20

Pulsating Jarring Tool

 #59
20170191330
2017-07-06

Mechanical hammering tool for use in oil wells

 #60
20170191329
2017-07-06

Drilling jar

 #61
20170175475
2017-06-22

Jarring using controllable powered bidirectional mechanical jar

 #62
20170089160
2017-03-30

Non-releasing anchor tool when jarring up on a stuck subterranean tool component

 #63
20170067306
2017-03-09

Reaction valve drilling jar system

 #64
20170044843
2017-02-16

Downhole swivel sub and method for releasing a stuck object in a wellbore

 #65
20170030159
2017-02-02

Pulling tool electromechanical actuated release

 #66
20170023607
2017-01-26

Acceleration predictor

 #67
20170016300
2017-01-19

Electromagnetic jarring tool

 #68
20160356111
2016-12-08

Multimodal tool jar

 #69
20160319620
2016-11-03

Plunger assembly with coated dart and wear pads

 #70
20160290086
2016-10-06

Electromagnetically activated jarring

 #71
20160273294
2016-09-22

Jarring apparatus

 #72
20160258270
2016-09-08

Impact sensing during jarring operations

 #73
20160251945
2016-09-01

Running tool and liner hanger contingency release mechanism

 #74
20160237771
2016-08-18

Release lugs for a jarring device

 #75
20160230489
2016-08-11

Predetermined load release device for a jar

 #76
20160215609
2016-07-28

Systems and methods for minimizing impact loading in downhole tools

 #77
20160177648
2016-06-23

Propellant back off tool

 #78
20160145959
2016-05-26

Flow restricted impact jar

 #79
20160102516
2016-04-14

Hydraulic impact apparatus and methods

 #80
20160102514
2016-04-14

Downhole impact generation tool and methods of use

 #81
20160032673
2016-02-04

Pressure lock for jars

 #82
20150361751
2015-12-17

Jarring Tool

 #83
20150258628
2015-09-17

FRICTION STIRRING AND ITS APPLICATION TO DRILL BITS, OIL FIELD AND MINING TOOLS, AND COMPONENTS IN OTHER INDUSTRIAL APPLICATIONS

 #84
20150226031
2015-08-13

Multi-stage flow device

 #85
20150211318
2015-07-30

Signal operated drilling tools for milling, drilling, and/or fishing operations

 #86
20150211317
2015-07-30

Downhole amplification tool

 #87
20150204153
2015-07-23

Change-over arrangement for a cable operated jar

 #88
20150176357
2015-06-25

Impact sensing during jarring operations

 #89
20150114643
2015-04-30

Wireline down jar

 #90
20150090459
2015-04-02

Apparatus and Methods for Clearing a Subsea Tubular

 #91
20150047854
2015-02-19

Electrical bulkhead connector

 #92
20150000892
2015-01-01

Downhole-adjusting impact apparatus and methods

 #93
20140196911
2014-07-17

Electromagnetically activated jarring

 #94
20140131100
2014-05-15

Electronically activated jarring with traveling release

 #95
20140054090
2014-02-27

Mechanical force generator for a downhole excitation apparatus

 #96
20140027117
2014-01-30

System and method of cutting and removing casings from wellbore

 #97
20140014321
2014-01-16

Assembly

 #98
20130277057
2013-10-24

Hydraulic/mechanical tight hole jar

 #99
20130168092
2013-07-04

Double-acting shock damper for a downhole assembly

 #100
20130153296
2013-06-20

Systems and methods to inhibit packoff formation during drilling assembly removal from a wellbore

 #101
20130153235
2013-06-20

Systems and methods to inhibit packoff events during downhole assembly motion within a wellbore

 #102
20130124166
2013-05-16

Modeling operation of a tool in a wellbore

 #103
20130068533
2013-03-21

Sealed jar

 #104
20130062052
2013-03-14

Pressure lock for jars

 #105
20120298365
2012-11-29

Compact jar for dislodging tools in an oil or gas well

 #106
20120222857
2012-09-06

ASSEMBLY

 #107
20120160477
2012-06-28

LARGE BORE JAR FOR A DRILL STRING

 #108
20120118641
2012-05-17

Apparatus and method for adjusting spring preload in a downhole tool

 #109
20110132598
2011-06-09

Downhole jarring tool with reduced wear latch

 #110
20110132597
2011-06-09

Downhole jarring tool

 #111
20110083851
2011-04-14

Compact jar for dislodging tools in an oil or gas well

 #112
20110083845
2011-04-14

Datacoil™ Downhole Logging System

 #113
20110030944
2011-02-10

Jarring tool with micro adjustment

 #114
20100258314
2010-10-14

Jars for Wellbore Operations

 #115
20100206568
2010-08-19

Devices, systems and methods for equalizing pressure in a gas well

 #116
20100078224
2010-04-01

BALL HOLE WELDING USING THE FRICTION STIR WELDING (FSW) PROCESS

 #117
20090301745
2009-12-10

Mechanical trigger arrangement

 #118
20090272544
2009-11-05

Tools and methods for hanging and/or expanding liner strings

 #119
20090266544
2009-10-29

Signal operated tools for milling, drilling, and/or fishing operations

 #120
20090145605
2009-06-11

Staged Actuation Shear Sub for Use Downhole

 #121
20090095490
2009-04-16

Electrically activating a jarring tool

 #122
20080149340
2008-06-26

Jars for wellbore operations

 #123
20080128168
2008-06-05

Apparatus and Method

 #124
20080087424
2008-04-17

Downhole intelligent impact jar and method for use

 #125
20080047710
2008-02-28

Apparatus and method for freeing deployment cables stuck in a wellbore

 #126
20070151732
2007-07-05

Downhole impact generator and method for use of same

 #127
20060243447
2006-11-02

Field adjustable impact jar

 #128
20060086505
2006-04-27

Combination jar and disconnect tool

 #129
20050284665
2005-12-29

Impact enhancing apparatus and method

 #130
20050230154
2005-10-20

Downhole drill string having a collapsible subassembly and method of loosening a stuck drillstring

 #131
20050183889
2005-08-25

Jar for use in a downhole toolstring

 #132
20050150693
2005-07-14

Downhole resettable jar tool with axial passageway and multiple biasing means

 #133
20050092495
2005-05-05

Jar with adjustable trigger load

 #134
20050092494
2005-05-05

Field adjustable impact jar

 #135
20050092484
2005-05-05

Downhole tool with pressure balancing

 #136
20050045339
2005-03-03

Drilling jar for use in a downhole network

 #137
20050023739
2005-02-03

Shock absorbing and shock force generating apparatus with shear pin for an oil pump and method therefor

 #138
19041279
2026-02-24

Magnetized wireline pulling tool

 #139
18051069
2024-01-30

Wireline jarring tool and methods of use

 #140
17736616
2023-09-12

Downhole through-tubing vibration tool, system and method

 #141
16891587
2021-10-19

Freeing a stuck pipe from a wellbore

 #142
14118744
2014-07-29

Jarring systems and methods of use