ClassID:

135504

E21B33/1291 - CPC Classification

Classification description:

Sealing or packing boreholes or wells in the borehole; Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks

Sub-classes:
Recent Application in this class:
#1
20260055678
2026-02-26

SYSTEMS AND METHODS FOR PRODUCING A HOUSINGLESS TUBING ANCHOR CATCHER

#2
20250101824
2025-03-27

MECHANICAL STOP ARRANGEMENT FOR A BOREHOLE TUBULAR TO LOCATE AND RESTRAIN A BOREHOLE TOOL TO AN OUTSIDE DIAMETER OF THE TUBULAR, METHOD, AND SYSTEM

#3
20240263539
2024-08-08

Expanding and collapsing apparatus having bookend seal cartridges

#4
20240191593
2024-06-13

Well tool comprising an orientation system and method for using same

#5
20240167353
2024-05-23

Linkage slip assembly for higher expansion on downhole tool

#6
20240093570
2024-03-21

BOTTOM HOLE ASSEMBLY AND METHODS FOR COMPLETION

#7
20240052716
2024-02-15

Tool and a method for at least one of gripping, expanding, and penetrating a wall of a bore

#8
20240003219
2024-01-04

COMPOSITE WEDGE AND RELATED METHODS

#9
20230175330
2023-06-08

Anchor mechanism

#10
20230167705
2023-06-01

Method and apparatus for a plug with a retractable pivoting mechanism for untethered object

#11
20220397015
2022-12-15

Apparatus and method for preparing a downhole tool component

#12
20220341297
2022-10-27

Bi-directional spring cone in liner hanger system

#13
20220316294
2022-10-06

Debris barrier for retrievable downhole tool using expandable metal material

#14
20220298877
2022-09-22

Coupling mechanism

#15
20220205334
2022-06-30

Frac plug with rod plug

#16
20220145721
2022-05-12

Method and system for boosting sealing elements of downhole barriers

#17
20220034192
2022-02-03

Frac plug with collapsible plug body having integral wedge and slip elements

#18
20220034191
2022-02-03

Frac plug slips with uniform breaking mechanism and method

#19
20210404277
2021-12-30

Downhole Tool

#20
20210198961
2021-07-01

Improvements In Or Relating To Well Abandonment

#21
20210123320
2021-04-29

EXPANDABLE CASING ANCHOR

#22
20210108474
2021-04-15

Anchor device

#23
20210095542
2021-04-01

High strength connection for composite sleeve and composite mandrel and related methods

#24
20210054704
2021-02-25

Zonal isolation device with expansion ring

#25
20210047896
2021-02-18

Bottom hole assembly and methods for completion

#26
20200355040
2020-11-12

Fracturing bridge plug

#27
20200340328
2020-10-29

Downhole tool with a slip insert having a hole

#28
20200340327
2020-10-29

Downhole plugging system

#29
20200240233
2020-07-30

Plugs for isolating portions of wellbores

#30
20200182011
2020-06-11

Slip assembly for a downhole tool

#31
20200173248
2020-06-04

ANCHORING SYSTEM FOR EXPANDABLE TUBULARS

#32
20200165893
2020-05-28

Mechanical casing annulus packer

#33
20200115990
2020-04-16

Setting adapter assembly for plug

#34
20190292873
2019-09-26

Downhole tool and method of use

#35
20190257193
2019-08-22

Downhole test tool and method of use

#36
20190249514
2019-08-15

Downhole tool with fingered member

#37
20190226327
2019-07-25

Downhole test tool and method of use

#38
20190162032
2019-05-30

Downhole tool and method of use

#39
20180371867
2018-12-27

Downhole plug having dissolvable metallic and dissolvable acid polymer elements

#40
20180340395
2018-11-29

Flow back retrieval method for borehole plug with a lower slip assembly

#41
20180298708
2018-10-18

Wellbore anchoring assembly

#42
20180291703
2018-10-11

DOWNHOLE TOOL AND METHOD OF USE

#43
20180274315
2018-09-27

Fingered member for a downhole tool

#44
20180202257
2018-07-19

Mandrel for a Downhole Tool

#45
20180179851
2018-06-28

Downhole tool and method of use

#46
20180155998
2018-06-07

Downhole tool and method of use

#47
20180148993
2018-05-31

Wellbore plug sealing assembly

#48
20180128074
2018-05-10

Testable isolation packer

#49
20180106120
2018-04-19

Frac Plug

#50
20180038221
2018-02-08

Apparatus and method for locating and setting a tool in a profile

#51
20180016864
2018-01-18

BOREHOLE PLUG WITH SPIRAL CUT SLIP AND INTEGRATED SEALING ELEMENT

#52
20180010418
2018-01-11

Downhole tool and method of use

#53
20180010417
2018-01-11

Downhole tool and method of use

#54
20170370176
2017-12-28

Split ring sealing assemblies

#55
20170335650
2017-11-23

System and method for downhole operations

#56
20170284168
2017-10-05

Telemetrically operable packers

#57
20170275962
2017-09-28

Telemetrically operable packers

#58
20170268311
2017-09-21

Frac plug system having bottom sub geometry for improved flow back, milling and/or setting

#59
20170234103
2017-08-17

Dissolvable downhole tools comprising both degradable polymer acid and degradable metal alloy elements

#60
20170218720
2017-08-03

PLUG FOR WELL DRILLING PROVIDED WITH RING-SHAPED RATCHET STRUCTURE

#61
20170175483
2017-06-22

ROTATING GRIP ARMS

#62
20170145780
2017-05-25

Downhole Tool having Slips Set by Stacked Rings

#63
20170130553
2017-05-11

Frac plug

#64
20170122049
2017-05-04

Downhole tool and system, and method of use

#65
20170096872
2017-04-06

Sealing Mechanism to Be Used in a Well Beyond a Tight Spot or in Inverted Casing

#66
20170030161
2017-02-02

Downhole plug having dissolvable metallic and dissolvable acid polymer elements

#67
20160356116
2016-12-08

Disintegrating plug for subterranean treatment use

#68
20160305215
2016-10-20

Frac plug

#69
20160290095
2016-10-06

Packer assembly with wing projection slips

#70
20160290093
2016-10-06

Disintegrating Compression Set Plug with Short Mandrel

#71
20160265304
2016-09-15

Anchor Structure and Downhole Plugging Apparatus

#72
20160237776
2016-08-18

Downhole tool with one-piece slip

#73
20160237774
2016-08-18

PLUG FOR WELL DRILLING

#74
20160168935
2016-06-16

Packer or bridge plug backup release system of forcing a lower slip cone from a slip assembly

#75
20160145957
2016-05-26

Downhole tool and method of use

#76
20160138362
2016-05-19

3-D PRINTED DOWNHOLE COMPONENTS

#77
20160123107
2016-05-05

Control interface for seal back-up/slip

#78
20160123105
2016-05-05

Shear thickening fluid controlled tool

#79
20160123104
2016-05-05

Downhole tool with anti-extrusion device

#80
20160108695
2016-04-21

Plug for well drilling process provided with mandrel formed from degradable material

#81
20160061000
2016-03-03

Flow resistant packing element system for composite plug

#82
20160024875
2016-01-28

Downhole packer with multiple areas of relative rotation

#83
20160010421
2016-01-14

Testable isolation packer

#84
20150376978
2015-12-31

Millable plugging device

#85
20150376977
2015-12-31

Non-rotating method and system for isolating wellhead pressure

#86
20150337618
2015-11-26

Disintegrating plug for subterranean treatment use

#87
20150330178
2015-11-19

Travel stop for expansion tool to limit stress on a surrounding tubular

#88
20150330177
2015-11-19

Self-locking expandable seal activator

#89
20150330176
2015-11-19

Expandable seal with adjacent radial travel stop

#90
20150308217
2015-10-29

Downhole tool with one-piece slip

#91
20150308215
2015-10-29

Composite segmenting backup ring for a subterranean plug

#92
20150300121
2015-10-22

Degradable plug with friction ring anchors

#93
20150292284
2015-10-15

Slip release assembly with cone undermining feature

#94
20150292283
2015-10-15

Relatively movable slip body and wicker for enhanced release capability

#95
20150285026
2015-10-08

Dissolvable aluminum downhole plug

#96
20150285024
2015-10-08

Bridge plug with selectivity opened through passage

#97
20150275641
2015-10-01

Method of treating a downhole formation using a downhole packer

#98
20150267502
2015-09-24

Downhole tool and method of use

#99
20150267498
2015-09-24

Mechanically-set devices placed on outside of tubulars in wellbores

#100
20150260007
2015-09-17

Downhole tool and method of use

#101
20150247375
2015-09-03

Frac Plug

#102
20150218903
2015-08-06

Multi-layered temperature responsive pressure isolation device

#103
20150191990
2015-07-09

Downhole tool and method of use

#104
20150159450
2015-06-11

Composite slip for a downhole tool

#105
20150114620
2015-04-30

Increased load bearing thickness for anchoring slip

#106
20150101830
2015-04-16

Lock ring and packoff for wellhead

#107
20150101811
2015-04-16

Method of treating a downhole formation using a downhole packer

#108
20150101796
2015-04-16

Downhole system for isolating sections of a wellbore

#109
20150101795
2015-04-16

Downhole packer with multiple areas of relative rotation

#110
20150068729
2015-03-12

Composite slips for a frac plug

#111
20150034300
2015-02-05

Well packer with nonrotating mandrel lock device

#112
20150027737
2015-01-29

Insert units for non-metallic slips oriented normal to cone face

#113
20150021048
2015-01-22

Slip, tangential slip system having slip, and method thereof

#114
20150013964
2015-01-15

Treatment plug, method of anchoring and sealing the same to a structure and method of treating a formation

#115
20140338892
2014-11-20

Slip with altering load distribution feature

#116
20140318762
2014-10-30

Scale Prevention Treatment Method, System, and Apparatus for Wellbore Stimulation

#117
20140290965
2014-10-02

Deactivation of packer with safety joint

#118
20140262214
2014-09-18

Bonded Segmented Slips

#119
20140238697
2014-08-28

Downhole tool with remotely actuated drag blocks and methods

#120
20140238689
2014-08-28

Wellbore Packer And Method

#121
20140224477
2014-08-14

Downhole tool having slip inserts composed of different materials

#122
20140209294
2014-07-31

High strength connection for sleeve and mandrel and related methods

#123
20140196913
2014-07-17

Bridge plug tool

#124
20140090831
2014-04-03

Non-metallic slips having inserts oriented normal to cone face

#125
20140027120
2014-01-30

Method and apparatus for hydraulic fracturing

#126
20140020911
2014-01-23

Downhole tool system and method related thereto

#127
20130299200
2013-11-14

Wellbore tools and methods

#128
20130206273
2013-08-15

Fiber reinforced polymer matrix nanocomposite downhole member

#129
20130192819
2013-08-01

Subterranean well tools having nonmetallic drag block sleeves

#130
20130048315
2013-02-28

Downhole tool having an anti-rotation configuration and method for using the same

#131
20130048314
2013-02-28

Downhole tool and method of use

#132
20130048313
2013-02-28

Downhole tool and method of use

#133
20130048272
2013-02-28

Downhole tool and method of use

#134
20130048271
2013-02-28

Downhole tool and method of use

#135
20120279701
2012-11-08

Locking assembly for mechanically set packer

#136
20120205873
2012-08-16

Anchoring seal

#137
20120205091
2012-08-16

Stage tool

#138
20110162843
2011-07-07

Process and apparatus to improve reliability of pinpoint stimulation operations

#139
20100051293
2010-03-04

Downhole tool with load diverting system and method

#140
20090114398
2009-05-07

Apparatus and Method for Gripping and/or Handling Tubulars

#141
20060266527
2006-11-30

Apparatus for radially expanding and plastically deforming a tubular member

#142
20060243444
2006-11-02

apparatus for radially expanding and plastically deforming a tubular member

#143
18472443
2025-01-28

Frac plug device for high expansion at the setting position

#144
18049188
2024-01-30

Retrievable packer with slotted sleeve release

#145
17064862
2022-01-25

Interactive packer module and system for isolating and evaluating zones in a wellbore

#146
14860148
2017-07-25

Partially removable releasable plug and method