ClassID:

135439

E21B29/10 - CPC Classification

Classification description:

Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows ; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground Reconditioning of well casings, e.g. straightening

Recent Application in this class:
#1
20250334022
2025-10-30

CURING CASING LEAK TOOL

#2
20250270890
2025-08-28

LASER MILLING SYSTEM FOR CONCENTRIC CASING STRING CEMENT REPAIR

#3
20250122774
2025-04-17

ALL METAL-TO-METAL CASING PATCH

#4
20240318524
2024-09-26

TOOL FOR METAL PLUGGING OR SEALING OF CASING

#5
20240167367
2024-05-23

APPARATUS AND RELATED METHODS FOR THE CEMENT BREAKUP DURING ABANDONMENT OPERATIONS

#6
20240060385
2024-02-22

AN EXPANDABLE EUTECTIC ALLOY BASED DOWNHOLE TOOL AND METHODS OF DEPLOYING SUCH

#7
20240035354
2024-02-01

ANNULUS REMEDIATION SYSTEM AND METHOD

#8
20230243224
2023-08-03

EXPANDABLE METAL SEALANT WELLBORE CASING PATCH

#9
20230228357
2023-07-20

Clamped saddle for directional hot-tapping tubulars

#10
20230203916
2023-06-29

IN SITU EXPANDABLE TUBULARS

#11
20230203904
2023-06-29

DOWNHOLE WELL INTEGRITY RECONSTRUCTION IN THE HYDROCARBON INDUSTRY

#12
20230167703
2023-06-01

Patching construction method using a hydraulic variable-grade expansion tool for blocking during drilling

#13
20230103962
2023-04-06

Running tool for a downhole aparatus for patching a wall of conduit and a method of patching a conduit

#14
20230095591
2023-03-30

METHOD AND APPARATUS OF HOT TAPPING MULTIPLE COAXIAL OR NESTED STRINGS OF UNDERWATER PIPING AND/OR TUBING FOR OVERTURNED WELLS OR PLATFORMS

#15
20220397012
2022-12-15

Expanding a tubular in a wellbore

#16
20220307343
2022-09-29

Tool for metal plugging or sealing of casing

#17
20220307338
2022-09-29

Sealing cracked cement in a wellbore casing

#18
20220299151
2022-09-22

APPARATUS AND METHOD FOR PLACING A CASING PATCH IN CASING OF A WELLBORE

#19
20220298880
2022-09-22

Freeing a stuck pipe from a wellbore

#20
20220205342
2022-06-30

Downhole method and apparatus

#21
20220106856
2022-04-07

Method of securing a well with shallow leak in upward cross flow

#22
20220081986
2022-03-17

System and methodology for through tubing patching

#23
20220042390
2022-02-10

Downhole welding tools and related methods

#24
20220042389
2022-02-10

Milling packers below restrictions in a wellbore casing

#25
20220025730
2022-01-27

Downhole well tools and methods of using such

#26
20220018202
2022-01-20

Well collapse reconnect method

#27
20220018201
2022-01-20

CASING ANNULUS LEAKAGE REPAIR METHOD AND SYSTEM

#28
20210404283
2021-12-30

Downhole fishing tool

#29
20210404267
2021-12-30

Method for separating nested well tubulars in gravity contact with each other

#30
20210388693
2021-12-16

Systems and methods to remove and re-apply sealant on the annular side of casing

#31
20210381330
2021-12-09

Freeing a stuck pipe from a wellbore

#32
20210230957
2021-07-29

Casing expander for well abandonment

#33
20210222540
2021-07-22

Continuous assessment of well elements using fiber optics

#34
20210198965
2021-07-01

Wellbore tool assembly to open collapsed tubing

#35
20210190251
2021-06-24

Lead pipe spudding prior to extraction or remediation

#36
20210189811
2021-06-24

Swellable lost circulation material and methods of manufacturing and using the same

#37
20210156243
2021-05-27

Downhole well integrity reconstruction in the hydrocarbon industry

#38
20210148180
2021-05-20

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#39
20210108490
2021-04-15

Casing patch system

#40
20210108478
2021-04-15

Casing patch system

#41
20210071504
2021-03-11

EXPANDABLE LINER

#42
20210040807
2021-02-11

DOWNHOLE WIRELINE MACHINING TOOL STRING

#43
20210025188
2021-01-28

SYSTEM, METHOD AND APPARATUS FOR SERVICING SUPPORT POLES

#44
20200381403
2020-12-03

Tool for metal plugging or sealing of casing

#45
20200332620
2020-10-22

Expandable eutectic alloy based downhole tool and methods of deploying such

#46
20200277833
2020-09-03

METHODS AND APPARATUS FOR TOP TO BOTTOM EXPANSION OF TUBULARS WITHIN A WELLBORE

#47
20200256165
2020-08-13

Expandable liner

#48
20200182008
2020-06-11

Methods and apparatus for use in oil and gas well completion

#49
20200088002
2020-03-19

Casing patch for loss circulation zone

#50
20200080401
2020-03-12

In situ expandable tubulars

#51
20200056443
2020-02-20

Downhole fishing tool

#52
20200040684
2020-02-06

Downhole expansion tool and method for use of the tool

#53
20190292869
2019-09-26

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#54
20190264543
2019-08-29

In situ expandable tubulars

#55
20190257187
2019-08-22

Downhole well integrity reconstruction in the hydrocarbon industry

#56
20190211642
2019-07-11

SYSTEM, METHOD, AND SLEEVE, FOR CLADDING AN UNDERGROUND WELLBORE PASSAGE

#57
20190169967
2019-06-06

Downhole casing patch

#58
20190169951
2019-06-06

EXTENDED REACH PLUG HAVING DEGRADABLE ELEMENTS

#59
20190120006
2019-04-25

Downhole casing patch

#60
20190093446
2019-03-28

Hydraulic device and method for locating and sealing holes or cracks in oil well production tubing

#61
20190078720
2019-03-14

Lead pipe spudding prior to extraction or remediation

#62
20190048692
2019-02-14

Casing patch system

#63
20190040721
2019-02-07

Collapsible cone for an expandable liner hanger system

#64
20190040704
2019-02-07

Articulating drill method and apparatus for cutting openings in nested strings of underwater piping and or tubing for overturned wells or platforms

#65
20180371882
2018-12-27

Expandable liner

#66
20180371859
2018-12-27

Ignitor, system and method of electrical ignition of exothermic mixture

#67
20180355691
2018-12-13

Downhole patching setting tool

#68
20180238135
2018-08-23

WELLBORE CASING REPAIR SAFETY TOOL FOR LOW-PRESSURE HYDROCARBON WELLS

#69
20180202267
2018-07-19

Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology

#70
20180187813
2018-07-05

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#71
20180187526
2018-07-05

Method and system for sealing a segmented expandable cone

#72
20180148991
2018-05-31

Tool for metal plugging or sealing of casing

#73
20180100380
2018-04-12

Well control using a modified liner tie-back

#74
20180087350
2018-03-29

In situ expandable tubulars

#75
20180010413
2018-01-11

Plug of extended reach

#76
20170247971
2017-08-31

Downhole sealing tool

#77
20170234100
2017-08-17

Methods and apparatus for use in oil and gas well completion

#78
20170234093
2017-08-17

Downhole fishing tool

#79
20170226819
2017-08-10

Downhole well tools and methods of using such

#80
20170167213
2017-06-15

Expandable tool having helical geometry

#81
20170159385
2017-06-08

Downhole wireline machining tool string

#82
20170030162
2017-02-02

Well casing/tubing disposal

#83
20160356130
2016-12-08

Methods for preserving zonal isolation within a subterranean formation

#84
20160348475
2016-12-01

Method for sealing an opening of a wellbore equipment

#85
20160312567
2016-10-27

Internally trussed high-expansion support for refracturing operations

#86
20160305225
2016-10-20

Lining of well bores with expandable and conventional liners

#87
20160298413
2016-10-13

Settable well tool method

#88
20160245052
2016-08-25

Downhole casing patch

#89
20160146390
2016-05-26

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#90
20160138361
2016-05-19

System and method for deploying a casing patch

#91
20160032696
2016-02-04

Metal patch system

#92
20150352823
2015-12-10

Long casing patch method

#93
20150211342
2015-07-30

Method of lining an oil well pipe in situ

#94
20150152704
2015-06-04

Method and apparatus for string access or passage through the deformed and dissimilar contiguous walls of a wellbore

#95
20150122486
2015-05-07

Microbial-enhanced well cementing and remediation

#96
20150068764
2015-03-12

Expandable tool having helical geometry

#97
20140367106
2014-12-18

Shaped memory devices and method for using same in wellbores

#98
20140352972
2014-12-04

Systems and methods for pulling subsea structures

#99
20140345702
2014-11-27

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#100
20140241822
2014-08-28

Articulating drill method and apparatus for cutting openings in nested strings of underwater piping and or tubing for overturned wells or platforms

#101
20140027118
2014-01-30

Expandable liner

#102
20130319665
2013-12-05

Magnetic leak management apparatus and methods

#103
20130255967
2013-10-03

Method of using an expansion tool for non-cemented casing annulus (CCA) wellbores

#104
20130255935
2013-10-03

Expansion tool for non-cemented casing-casing annulus (CCA) wellbores

#105
20130233548
2013-09-12

Apparatus and method for completing a wellbore

#106
20130206426
2013-08-15

Expandable casing patch

#107
20130160999
2013-06-27

Sealing system

#108
20130146308
2013-06-13

Support device of equipment inside a well, a process for fixing it and a process for placing such equipment

#109
20130140022
2013-06-06

Method for repairing a liner hanger, device and blank for implementation thereof

#110
20130000924
2013-01-03

EXPANDABLE LINER SYSTEM

#111
20120312561
2012-12-13

Tubular assembly

#112
20120267099
2012-10-25

System and method for deploying a downhole casing patch

#113
20120211222
2012-08-23

Device for applying an expandable skirt having application diameter control upon advance

#114
20120205124
2012-08-16

System and method to expand tubulars below restrictions

#115
20120205110
2012-08-16

Wellbore servicing compositions and methods of making and using same

#116
20120193088
2012-08-02

Expandable Compliant Anchor/Seal

#117
20120186809
2012-07-26

Downhole 4D pressure measurement apparatus and method for permeability characterization

#118
20120126482
2012-05-24

TUBE SEALING DEVICE AND A SEALING ELEMENT FOR SUCH A DEVICE

#119
20120118570
2012-05-17

Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings

#120
20120097391
2012-04-26

EXPANDABLE CASING PATCH

#121
20120067447
2012-03-22

Method and compositions for delivery of a concentrated quantity of sealing elements to a leak site in a vessel

#122
20120067435
2012-03-22

Method and apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#123
20120037381
2012-02-16

Anchor for use with expandable tubular

#124
20110259587
2011-10-27

Apparatus and method for sealing portions of a wellbore

#125
20110214884
2011-09-08

Lining of well bores with expandable and conventional liners

#126
20110121516
2011-05-26

METHOD FOR SEALING OFF A WATER ZONE IN A PRODUCTION WELL DOWNHOLE AND A SEALING ARRANGEMENT

#127
20110114213
2011-05-19

WATER POWERED HYDRAULIC SWAGE SYSTEM AND METHOD FOR WELL CASING REPAIR

#128
20110073307
2011-03-31

Forming structures in a well in-situ

#129
20110067869
2011-03-24

In situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals

#130
20110056685
2011-03-10

Wellbore servicing compositions and methods of making and using same

#131
20100278602
2010-11-04

Articulating drill method and apparatus for cutting openings in nested strings of underwater piping and/or tubing for overturned wells or platforms

#132
20100270035
2010-10-28

System and method to expand tubulars below restrictions

#133
20100258311
2010-10-14

Casing Patch and Seal

#134
20100252278
2010-10-07

Anchor assembly and method of installing anchors

#135
20100247794
2010-09-30

Lining of wellbore tubing

#136
20100243072
2010-09-30

Apparatus of hot tapping multiple coaxial or nested strings of underwater piping and/or tubing for overturned wells or platforms

#137
20100193124
2010-08-05

Method of Lining a Well or a Pipe Using an Inflatable Bladder

#138
20100132958
2010-06-03

EXPANDABLE TUBULAR INSTALLATION SYSTEMS, METHODS, AND APPARATUS

#139
20100058828
2010-03-11

Cladding method and expansion tool

#140
20100024348
2010-02-04

METHOD OF EXPANSION

#141
20090308594
2009-12-17

METHOD FOR EXPANDING A TUBULAR ELEMENT

#142
20090294118
2009-12-03

Method and apparatus for use in a wellbore

#143
20090223680
2009-09-10

Methods for expanding tubular strings and isolating subterranean zones

#144
20090193871
2009-08-06

Radial expansion system

#145
20090188569
2009-07-30

Method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose

#146
20090183884
2009-07-23

METHOD FOR SEALING WELLBORE LEAKAGE AND SHUTTING-OFF OF WATER PRODUCING ZONES

#147
20090169319
2009-07-02

Downhole deburring tool

#148
20090151930
2009-06-18

Mechanical expansion system

#149
20090151929
2009-06-18

Method and device for cementing a well or a pipe

#150
20090139322
2009-06-04

Downhole 4D pressure measurement apparatus and method for permeability characterization

#151
20090133873
2009-05-28

Method for repair of damaged wells

#152
20090084551
2009-04-02

Variable diameter pipe expander

#153
20080257542
2008-10-23

Low Carbon Steel Expandable Tubular

#154
20080245532
2008-10-09

Apparatus and methods of milling a restricted casing shoe

#155
20080236230
2008-10-02

Hydroforming Method and Apparatus

#156
20080217000
2008-09-11

Casing patch

#157
20080156480
2008-07-03

APPARATUS FOR EXPANDING A TUBULAR MEMBER

#158
20080115939
2008-05-22

Radial Expansion of Tubular Members

#159
20080093089
2008-04-24

System for Lining a Wellbore Casing

#160
20080093068
2008-04-24

System for Lining a Wellbore Casing

#161
20080087418
2008-04-17

Pipeline

#162
20080053656
2008-03-06

Casing patch overshot

#163
20080047708
2008-02-28

METHOD AND APPARATUS FOR PLUGGING PERFORATIONS

#164
20080035251
2008-02-14

Method of Manufacturing a Tubular Member

#165
20080017387
2008-01-24

Methods for expanding tubular strings and isolating subterranean zones

#166
20080000645
2008-01-03

Radial Expansion System

#167
20070272418
2007-11-29

Casing apparatus and method for casing or repairing a well, borehole, or conduit

#168
20070272405
2007-11-29

Ribbed sealing element and method of use

#169
20070266756
2007-11-22

Expandable Tubular

#170
20070215360
2007-09-20

Expandable Tubular

#171
20070205001
2007-09-06

Expandable Tubular

#172
20070175634
2007-08-02

Apparatus and method for repairing failure spots on subterranean well tubulars using shock waves

#173
20070158081
2007-07-12

Expandable tubulars

#174
20070137826
2007-06-21

Creating a well abandonment plug

#175
20070107898
2007-05-17

Flush mounted tubular patch

#176
20070095532
2007-05-03

Apparatus and method for sealing a wellbore

#177
20070089886
2007-04-26

Expandable Sleeve

#178
20070051514
2007-03-08

Method and apparatus for well casing repair and plugging utilizing molten metal

#179
20070034386
2007-02-15

Expandable well barrier

#180
20070017572
2007-01-25

Pipeline

#181
20070012456
2007-01-18

Wellbore Casing

#182
20060289159
2006-12-28

System and method for collecting escaping hydrocarbons from a breached well pipe

#183
20060283607
2006-12-21

Bore isolation

#184
20060254779
2006-11-16

Casing patch overshot

#185
20060196678
2006-09-07

Method and system for lining tubulars

#186
20060144591
2006-07-06

Method and apparatus for repair of wells utilizing meltable repair materials and exothermic reactants as heating agents

#187
20060065408
2006-03-30

Methods for expanding tubular strings and isolating subterranean zones

#188
20060065391
2006-03-30

Expandable seal

#189
20060042801
2006-03-02

Isolation device and method

#190
20060037750
2006-02-23

Exothermic tool and method for heating a low temperature metal alloy for repairing failure spots along a section of a tubular conduit

#191
20060037749
2006-02-23

Well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit in a subterranean well

#192
20060032628
2006-02-16

Well casing straddle assembly

#193
20060016623
2006-01-26

One trip well drilling to total depth

#194
20060016597
2006-01-26

Open hole expandable patch and method of use

#195
20050252662
2005-11-17

Apparatus and method for expanding a tubular

#196
20050230124
2005-10-20

Mono-diameter wellbore casing

#197
20050230104
2005-10-20

Apparatus for expanding a tubular member

#198
20050230103
2005-10-20

Apparatus for expanding a tubular member

#199
20050230102
2005-10-20

Apparatus for expanding a tubular member

#200
20050224225
2005-10-13

Apparatus for expanding a tubular member

#201
20050205253
2005-09-22

Apparatus for expanding a tubular member

#202
20050178561
2005-08-18

Ribbed sealing element and method of use

#203
20050173115
2005-08-11

Apparatus and method for repair of underground conduits

#204
20050161228
2005-07-28

Apparatus for radially expanding and plastically deforming a tubular member

#205
20050161213
2005-07-28

Method of repair of collapsed or damaged tubulars downhole

#206
20050155766
2005-07-21

Flexible wellbore broach

#207
20050127673
2005-06-16

Tubing seal

#208
20050121232
2005-06-09

Downhole filter

#209
20050098323
2005-05-12

Forming a wellbore casing while simultaneously drilling a wellbore

#210
20050081358
2005-04-21

Radial expansion of tubular members

#211
20050077051
2005-04-14

Radial expansion of tubular members

#212
20050045342
2005-03-03

Apparatus and method for completing a wellbore

#213
20050045341
2005-03-03

Radial expansion of tubular members

#214
20050045324
2005-03-03

Radial expansion of tubular members

#215
20050042036
2005-02-24

Device and method for trenchless replacement of underground pipe

#216
20050039928
2005-02-24

Radial expansion of tubular members

#217
20050039912
2005-02-24

Conformable apparatus in a drill string

#218
20050028988
2005-02-10

Radial expansion of tubular members

#219
20050028339
2005-02-10

Hydraulic well casing repair system and method therefor

#220
20050023002
2005-02-03

Systems and methods for placing a braided, tubular sleeve in a well bore

#221
20050022995
2005-02-03

Apparatus and methods of cleaning and refinishing tubulars

#222
20050011641
2005-01-20

Wellhead

#223
19031188
2025-12-09

Intelligent impact casing reshaping tool

#224
18467456
2025-02-18

Laser cladding downhole repair

#225
16693224
2020-05-19

System and method for improving integrity of cased wellbores