ClassID:

135500

E21B33/1277 - CPC Classification

Classification description:

Sealing or packing boreholes or wells in the borehole; Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve

Recent Application in this class:
#1
20250354450
2025-11-20

INFLATABLE DOWN HOLE BAG

#2
20250297525
2025-09-25

Inflatable Downhole Apparatus with Dissolvable Actuation Mechanism

#3
20250092757
2025-03-20

SECTION MILLING, UNDER REAMING AND SETTING AN INFLATABLE PLUG IN ONE RUN

#4
20240328279
2024-10-03

System and methodology for providing bypass through an expandable metal packer

#5
20240318523
2024-09-26

WELL TOOL DEVICE FOR INJECTING A FLUID THROUGH A HOLE IN A WELL BORE

#6
20240295157
2024-09-05

ANNULAR BARRIER

#7
20240117718
2024-04-11

Washpipe Free Feature With Ball And Magnet

#8
20240110458
2024-04-04

High expandable straddle

#9
20240084656
2024-03-14

Clamp for a control line, method, and system

#10
20240060384
2024-02-22

Segmented Retainer For High Pressure Barriers

#11
20230374884
2023-11-23

EXPANSION APPARATUS

#12
20230349258
2023-11-02

PROTECTION APPARATUS ON SWELLABLE PACKERS TO PREVENT FLUID REACTION

#13
20230272688
2023-08-31

Inflatable bridge plug

#14
20230250703
2023-08-10

EXPANDING METAL FOR CONTROL LINES

#15
20230151715
2023-05-18

Well sealing tool with isolatable setting chamber

#16
20230143015
2023-05-11

Completion isolation system with tubing movement compensator

#17
20220372836
2022-11-24

WELLBORE ANCHOR INCLUDING ONE OR MORE ACTIVATION CHAMBERS

#18
20220333456
2022-10-20

Annular barrier and downhole system

#19
20220282590
2022-09-08

Heat hardening polymer for expandable downhole seals

#20
20220275699
2022-09-01

Solid state lost circulation material

#21
20220162924
2022-05-26

Downhole packer assembly

#22
20220018207
2022-01-20

Segmented retainer for high pressure barriers

#23
20220010628
2022-01-13

Flow management systems and related methods for oil and gas applications

#24
20210230955
2021-07-29

Inflatable down hole bag with inflation reagent release

#25
20210207458
2021-07-08

Methods for supporting wellbore formations with expandable structures

#26
20210148186
2021-05-20

Methods and systems for preventing hydrostatic head within a well

#27
20210148179
2021-05-20

Coupled downhole shifting and treatment tools and methodology for completion and production operations

#28
20210115751
2021-04-22

Actuated inflatable packer

#29
20210079755
2021-03-18

Mechanical flow assembly

#30
20210071495
2021-03-11

Annular barrier system

#31
20210002974
2021-01-07

Curing a lost circulation zone in a wellbore

#32
20200408061
2020-12-31

Annular barrier with press connections

#33
20200399977
2020-12-24

Annular barrier with bite connection

#34
20200370391
2020-11-26

Swellable metal packer with porous external sleeve

#35
20200362224
2020-11-19

Elastomer with an expandable metal

#36
20200131883
2020-04-30

Thru-tubing subsurface completion unit employing detachable anchoring seals

#37
20200072018
2020-03-05

Expandable metal packer system and methodology with annulus pressure compensation

#38
20200040701
2020-02-06

Thru-tubing retrievable intelligent completion system

#39
20200040700
2020-02-06

Thru-tubing retrievable intelligent completion system

#40
20200040699
2020-02-06

Thru-tubing retrievable intelligent completion system

#41
20200040698
2020-02-06

Thru-tubing retrievable subsurface completion system

#42
20200040697
2020-02-06

Thru-tubing retrievable subsurface completion system

#43
20200040696
2020-02-06

Thru-tubing retrievable subsurface completion system

#44
20190383114
2019-12-19

ANNULAR BARRIER

#45
20190301264
2019-10-03

Isolation barrier

#46
20190277107
2019-09-12

OFFSHORE METHOD

#47
20190249515
2019-08-15

Curing a lost circulation zone in a wellbore

#48
20190249512
2019-08-15

Loss circulation drilling packer

#49
20190218886
2019-07-18

Substance deposition and backflow preventing arrangement and method

#50
20190178049
2019-06-13

Plug and plug and abandonment system

#51
20190071948
2019-03-07

System to control extrusion gaps in an anti-extrusion device

#52
20190055807
2019-02-21

Packers having controlled swelling

#53
20190040711
2019-02-07

Seal bladder bonding sleeves for submersible well pump assembly

#54
20190032441
2019-01-31

Annular barrier for small diameter wells

#55
20180340393
2018-11-29

Seal for a borehole

#56
20180328152
2018-11-15

Expandable device for use in a well bore

#57
20180266205
2018-09-20

Downhole tool with an expandable sleeve

#58
20180202258
2018-07-19

Device for cementing a pipe into a borehole well and corresponding cementation method

#59
20180156030
2018-06-07

Thru-tubing retrievable subsurface completion system

#60
20180156013
2018-06-07

Thru-tubing retrievable intelligent completion system

#61
20180156009
2018-06-07

Thru-tubing subsurface completion unit employing detachable anchoring seals

#62
20180156008
2018-06-07

Modular thru-tubing subsurface completion unit

#63
20180155991
2018-06-07

Well completion system

#64
20180128075
2018-05-10

Annular barrier with expansion unit

#65
20180073323
2018-03-15

Expandable seal

#66
20180030807
2018-02-01

Downhole tool with an expandable sleeve

#67
20180010414
2018-01-11

Annular barrier with shunt tube

#68
20170328170
2017-11-16

Annular barrier and annular barrier system

#69
20170321515
2017-11-09

Annular barrier with closing mechanism

#70
20170314370
2017-11-02

Downhole method and apparatus

#71
20170314360
2017-11-02

Integrally-bonded swell packer

#72
20170254172
2017-09-07

Coiled tubing deployed ESP with seal stack that is slidable relative to packer bore

#73
20170241220
2017-08-24

Fluid release mechanism for a chemically-inflatable bag

#74
20170191343
2017-07-06

Swellable packer with enhanced operating envelope

#75
20170159405
2017-06-08

Downhole well system

#76
20170101847
2017-04-13

Downhole string for drilling through a low pressure zone

#77
20170089167
2017-03-30

Systems and methods for an expandable packer

#78
20170016278
2017-01-19

Downhole production casing string

#79
20160376870
2016-12-29

Isolation device of part of a well

#80
20160348463
2016-12-01

Annular barrier having a downhole expandable tubular

#81
20160326829
2016-11-10

Swellable sealing systems and methods for increasing swelling efficiency

#82
20160298414
2016-10-13

Zone isolation method and annular barrier with an anti-collapsing unit

#83
20160281474
2016-09-29

Downhole method and apparatus

#84
20160273298
2016-09-22

Annular barrier with passive pressure compensation

#85
20160237772
2016-08-18

Wellbore fluids comprising hydrated inorganic oxide materials and associated methods

#86
20160222754
2016-08-04

Annular barrier

#87
20160208573
2016-07-21

Tubular element with dynamic sealing and method for applying same against the wall of a wellbore

#88
20160208572
2016-07-21

Inflatable sleeve with controlled expansion

#89
20160194931
2016-07-07

Filling mechanism for a morphable sleeve

#90
20160177659
2016-06-23

Retrievable packer

#91
20160115761
2016-04-28

Isolation barrier

#92
20160097254
2016-04-07

Isolation Barrier

#93
20150285039
2015-10-08

Expandable well screens with slurry delivery shunt conduits

#94
20150240588
2015-08-27

Cable wrapped inflatable packer element

#95
20150144330
2015-05-28

Subterranean formation methods and apparatus

#96
20150136388
2015-05-21

In-situ rock testing tool

#97
20150075818
2015-03-19

Pipe provided with a crimped metal element, and corresponding process

#98
20150068774
2015-03-12

Annular barrier with a seal

#99
20140352983
2014-12-04

Downhole sealing assembly with swellable seal

#100
20140332232
2014-11-13

Annular barrier with an expansion detection device

#101
20140318808
2014-10-30

Fracturing multiple zones with inflatables

#102
20140311759
2014-10-23

Annular barrier system with flow lines

#103
20140311751
2014-10-23

Annular barrier and annular barrier system

#104
20140299334
2014-10-09

SEALING MATERIAL FOR ANNULAR BARRIERS

#105
20140299331
2014-10-09

Expandable device for use in a well bore

#106
20140284046
2014-09-25

Wellbore isolation tool using sealing element having shape memory polymer

#107
20140262251
2014-09-18

Method for inducing and further propagating formation fractures

#108
20140238701
2014-08-28

Mill diverter having a swellable material for preventing fluid flow past the material

#109
20140196887
2014-07-17

Annular barrier with safety metal sleeve

#110
20140190708
2014-07-10

Annular barrier with axial force mechanism

#111
20140151039
2014-06-05

Expandable filtering system for single packer systems

#112
20140116718
2014-05-01

Single packer with a sealing layer shape enhanced for fluid performance

#113
20140014374
2014-01-16

Swellable packer

#114
20140013984
2014-01-16

Borehole plug inflation control

#115
20140008061
2014-01-09

Packer assembly with sealing bodies

#116
20130341005
2013-12-26

Downhole method and apparatus

#117
20130283593
2013-10-31

Method of making a downhole swellable seal with a passageway therethrough

#118
20130248187
2013-09-26

Inflatable collar and downhole method for moving a coiled tubing string

#119
20130240202
2013-09-19

Isolation device of part of a well

#120
20130228279
2013-09-05

System and method for enhancing packer operation and longevity

#121
20130186615
2013-07-25

Annular barrier

#122
20130068311
2013-03-21

Through tubing pumping system with automatically deployable and retractable seal

#123
20130062077
2013-03-14

Methods and equipment to improve reliability of pinpoint stimulation operations

#124
20130008643
2013-01-10

DOWNHOLE SEALING DEVICE AND METHOD OF MAKING

#125
20120279722
2012-11-08

Tubular seating system and method of seating a plug

#126
20120227969
2012-09-13

External Casing Packer

#127
20120211226
2012-08-23

SCREEN, METHOD OF EXPANDING A SCREEN AND METHOD OF CONFORMING A SCREEN TO A BOREHOLE

#128
20120199339
2012-08-09

ANNULAR BARRIER

#129
20120181017
2012-07-19

Expandable device for use in a well bore

#130
20120103592
2012-05-03

Down hole well tool provided with a piston

#131
20120080200
2012-04-05

Connector seal

#132
20120055667
2012-03-08

Wellbore isolation tool using sealing element having shape memory polymer

#133
20110272150
2011-11-10

Well fluid sampling system for use in heavy oil environments

#134
20110266004
2011-11-03

Annular barrier and annular barrier system

#135
20110265986
2011-11-03

Multiple layer extrusion limiter

#136
20110252781
2011-10-20

Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables

#137
20110214855
2011-09-08

Expandable device for use in a well bore

#138
20110194956
2011-08-11

Mechanism for sealing PFA seal bags

#139
20110079383
2011-04-07

Interchangeable drillable tool

#140
20110067860
2011-03-24

SYSTEM AND METHOD FOR OBTAINING FORMATION FLUID SAMPLES FOR ANALYSIS

#141
20110036597
2011-02-17

Fiber reinforced packer

#142
20100307771
2010-12-09

Sealing assembly

#143
20100300689
2010-12-02

SEALING ASSEMBLY

#144
20100294485
2010-11-25

High expansion metal seal system

#145
20100288511
2010-11-18

System and method for enhancing packer operation and longevity

#146
20100230902
2010-09-16

DOWNHOLE SEALING DEVICE AND METHOD OF MAKING

#147
20100230101
2010-09-16

Method and apparatus to cement a perforated casing

#148
20100193124
2010-08-05

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

#149
20100186969
2010-07-29

Downhole apparatus

#150
20100175895
2010-07-15

Permeability modification

#151
20100170682
2010-07-08

INFLATABLE PACKER ASSEMBLY

#152
20100163254
2010-07-01

Device For Sealing Off A Well And A Pipe And A Fitting Method

#153
20100155056
2010-06-24

Eutectic material-based seal element for packers

#154
20100139930
2010-06-10

System and method to seal using a swellable material

#155
20100122812
2010-05-20

Single packer structure with sensors

#156
20100083749
2010-04-08

PROBE FOR PRESSURE METER

#157
20100071911
2010-03-25

System and method for forming a seal in a wellbore

#158
20100038860
2010-02-18

Controllably-deformable inflatable sleeve, production method thereof and use of same for pressure metering applications

#159
20100018694
2010-01-28

EUTECTIC MATERIAL-BASED SEAL ELEMENT FOR PACKERS

#160
20090301715
2009-12-10

Single packer system for use in a wellbore

#161
20090242189
2009-10-01

SWELL PACKER

#162
20090183875
2009-07-23

Method and apparatus to set a plug

#163
20090159278
2009-06-25

Single Packer System for Use in Heavy Oil Environments

#164
20080196884
2008-08-21

Expandable packer with mounted exterior slips and seal

#165
20080142221
2008-06-19

Swellable polymeric materials

#166
20080135240
2008-06-12

Inflatable packer assembly

#167
20080023193
2008-01-31

Swelling packer element with enhanced sealing force

#168
20080011473
2008-01-17

Delaying swelling in a downhole packer element

#169
20070289735
2007-12-20

Inflatable packer with a reinforced sealing cover

#170
20070261847
2007-11-15

Sealing device for plugging a pipe or a well

#171
20070227724
2007-10-04

Packer cable sealing system

#172
20070215348
2007-09-20

System and method for obtaining formation fluid samples for analysis

#173
20070199693
2007-08-30

Eutectic material-based seal element for packers

#174
20070193736
2007-08-23

Packers and methods of use

#175
20070144734
2007-06-28

Inflatable packers

#176
20070144733
2007-06-28

Self boosting packing element

#177
20070125532
2007-06-07

Self energized backup system for packer sealing elements

#178
20070107913
2007-05-17

Thru-tubing high expansion inflatable seal with mechanical anchoring system and method

#179
20070089877
2007-04-26

Expandable packer

#180
20070012437
2007-01-18

Inflatable packer

#181
20060219415
2006-10-05

Packer cups for use inside a wellbore

#182
20060219400
2006-10-05

Inflatable packers

#183
20060090905
2006-05-04

Inflatable packer assembly

#184
20060042801
2006-03-02

Isolation device and method

#185
20060037745
2006-02-23

Expandable device for use in a well bore

#186
20050199401
2005-09-15

System and method to seal using a swellable material

#187
20050189121
2005-09-01

Expandable packer with mounted exterior slips and seal

#188
20050189119
2005-09-01

Inflatable sealing assembly and method for sealing off an inside of a flow carrier

#189
20050072579
2005-04-07

Well packer having an energized sealing element and associated method

#190
20050061520
2005-03-24

Fluid inflatabe packer and method

#191
20050016740
2005-01-27

Seal

#192
17225334
2022-07-05

Downhole tool with compliant metal-to-metal seal

#193
15695893
2019-08-27

Frustum plugs for pipelines