ClassID:

135503

E21B33/129 - page 2 - CPC Classification

Classification description:

Sealing or packing boreholes or wells in the borehole; Packers; Plugs with mechanical slips for hooking into the casing

Recent Application in this class:
#301
20150060047
2015-03-05

ELASTOMERIC BALL SEAT FOR A FRAC PLUG

#302
20150053397
2015-02-26

Re-fracturing bottom hole assembly and method

#303
20150021048
2015-01-22

Slip, tangential slip system having slip, and method thereof

#304
20150013965
2015-01-15

WELLBORE COMPOSITE PLUG ASSEMBLY

#305
20150013964
2015-01-15

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

#306
20140332224
2014-11-13

Dual barrier open water completion

#307
20140318812
2014-10-30

Apparatus for use in a fluid conduit

#308
20140311752
2014-10-23

Downhole plug apparatus

#309
20140305648
2014-10-16

Tools and methods for use in completion of a wellbore

#310
20140262344
2014-09-18

Drillable slip

#311
20140251593
2014-09-11

Shear member post shear segment retention apparatus

#312
20140238700
2014-08-28

Resettable packer assembly and methods of using the same

#313
20140238689
2014-08-28

Wellbore Packer And Method

#314
20140231069
2014-08-21

Downhole tool and method of use

#315
20140224506
2014-08-14

Easy drill slip with degradable materials

#316
20140224477
2014-08-14

Downhole tool having slip inserts composed of different materials

#317
20140224476
2014-08-14

Down hole tool having improved segmented back up ring

#318
20140216723
2014-08-07

Hard surfacing metallic slip components for downhole tools

#319
20140216722
2014-08-07

Hard surfacing non-metallic slip components for downhole tools

#320
20140209325
2014-07-31

Expandable wedge slip for anchoring downhole tools

#321
20140209321
2014-07-31

PLUG, AND METHODS FOR SETTING AND RELEASING THE PLUG

#322
20140209293
2014-07-31

Downhole assembly

#323
20140196889
2014-07-17

Downhole anchoring systems and methods of using same

#324
20140190685
2014-07-10

Downhole tools having non-toxic degradable elements and methods of using the same

#325
20140182863
2014-07-03

Straight-bore back pressure valve

#326
20140166318
2014-06-19

Apparatus and methods for retrieving a well packer

#327
20140166306
2014-06-19

Apparatus and methods for retrieving a well packer

#328
20140090831
2014-04-03

Non-metallic slips having inserts oriented normal to cone face

#329
20140060812
2014-03-06

Standoff device for downhole tools using slip elements

#330
20140054041
2014-02-27

Apparatus for creating bidirectional rotary force or motion in a downhole device and method of using same

#331
20140041857
2014-02-13

Setting tool, anchoring and sealing device and system

#332
20140020911
2014-01-23

Downhole tool system and method related thereto

#333
20140014371
2014-01-16

Expandable downhole seat assembly

#334
20130327545
2013-12-12

System and method utilizing frangible components

#335
20130240203
2013-09-19

Decomposable impediments for downhole tools and methods for using same

#336
20130240201
2013-09-19

Decomposable impediments for downhole plugs

#337
20130240200
2013-09-19

Decomposable pumpdown ball for downhole plugs

#338
20130206392
2013-08-15

Fracturing tool anchor

#339
20130192853
2013-08-01

Wellbore packer back-up ring assembly, packer and method

#340
20130186650
2013-07-25

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

#341
20130186647
2013-07-25

Tubular anchoring system and method

#342
20130186646
2013-07-25

TREATMENT PLUG SETTING TOOL, SETTING SYSTEM AND METHOD OF AVOIDING SETTING A TREATMENT PLUG WHILE RUNNING

#343
20130186616
2013-07-25

Tubular anchoring system and a seat for use in the same

#344
20130126191
2013-05-23

Inflatable packer assembly

#345
20130112412
2013-05-09

Settable well tool and method

#346
20130048315
2013-02-28

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

#347
20130048314
2013-02-28

Downhole tool and method of use

#348
20130048313
2013-02-28

Downhole tool and method of use

#349
20130048272
2013-02-28

Downhole tool and method of use

#350
20130048271
2013-02-28

Downhole tool and method of use

#351
20130025885
2013-01-31

Downhole line tool assembly and method for use thereof

#352
20130025884
2013-01-31

Low stress traction system

#353
20130020071
2013-01-24

Frangible slip for downhole tools

#354
20120292052
2012-11-22

Easy drill slip

#355
20120292014
2012-11-22

Packer supported on bonded connection to a surrounding tubular

#356
20120279700
2012-11-08

Configurable downhole tools and methods for using same

#357
20120186830
2012-07-26

Packer assembly

#358
20120160523
2012-06-28

Downhole packer tool with safety systems for preventing undue set and release operations

#359
20120160522
2012-06-28

Downhole packer tool with dummy slips

#360
20120160475
2012-06-28

Downhole packer tool with antifracture means

#361
20120118561
2012-05-17

Configurable inserts for downhole plugs

#362
20120118420
2012-05-17

Device to control the rate of fluid flow in a pipe

#363
20120097384
2012-04-26

Drillable slip with buttons and cast iron wickers

#364
20120090847
2012-04-19

Tools and methods for use in completion of a wellbore

#365
20120073834
2012-03-29

Friction Bite with Swellable Elastomer Elements

#366
20120043070
2012-02-23

Magnetic Slip Retention for Downhole Tool

#367
20120018143
2012-01-26

Swellable packer anchors

#368
20120012329
2012-01-19

Method of fixing a broken oil pipe

#369
20120012306
2012-01-19

Retrievable slip mechanism for downhole tool

#370
20120012305
2012-01-19

Downhole C-ring slip assembly

#371
20120006532
2012-01-12

Configurable inserts for downhole plugs

#372
20110297265
2011-12-08

Electromagnetic oil pipe plugger

#373
20110290473
2011-12-01

Configurable inserts for downhole plugs

#374
20110284208
2011-11-24

Apparatus and method for setting a downhole anchor and related telescopic joint

#375
20110277989
2011-11-17

Configurable bridge plugs and methods for using same

#376
20110155395
2011-06-30

Method and apparatus for releasing a packer

#377
20110147015
2011-06-23

Seal Bore for High Expansion Bridge Plugs

#378
20110088891
2011-04-21

Ultra-short slip and packing element system

#379
20110073310
2011-03-31

Through tubing bridge plug and installation method for same

#380
20110036561
2011-02-17

Retractable downhole backup assembly for circumferential seal support

#381
20110011575
2011-01-20

Straight-bore back pressure valve

#382
20110005778
2011-01-13

Method and system for anchoring and isolating a wellbore

#383
20100276159
2010-11-04

Non-damaging slips and drillable bridge plug

#384
20100263876
2010-10-21

Combination down hole tool

#385
20100243232
2010-09-30

Magnetic slip retention for downhole tool

#386
20100206550
2010-08-19

Slip segments for downhole tool

#387
20100186969
2010-07-29

Downhole apparatus

#388
20100186947
2010-07-29

Retractable downhole backup assembly for circumferential seal support

#389
20100175895
2010-07-15

Permeability modification

#390
20100170682
2010-07-08

INFLATABLE PACKER ASSEMBLY

#391
20100155052
2010-06-24

Downhole tool and running tool system for retrievably setting a downhole tool at locations within a well bore

#392
20100139911
2010-06-10

Subterranean well ultra-short slip and packing element system

#393
20100133864
2010-06-03

GRIPPING MEANS FOR USE WITH A UNIT INSERTABLE IN A PIPELINE

#394
20100126733
2010-05-27

Packer

#395
20100101806
2010-04-29

Mandrel to be inserted into a liquid circulation pipe and associated positioning method

#396
20100051293
2010-03-04

Downhole tool with load diverting system and method

#397
20100051264
2010-03-04

METHOD AND SYSTEM FOR MONITORING DOWNHOLE COMPLETION OPERATIONS

#398
20100006280
2010-01-14

Downhole tool with multiple material retaining ring

#399
20090321067
2009-12-31

RELEASING SLIPS FOR OIL WELL TOOL

#400
20090294119
2009-12-03

Large bore packer

#401
20090283279
2009-11-19

ZONAL ISOLATION SYSTEM

#402
20090242214
2009-10-01

Method and system for anchoring and isolating a wellbore

#403
20090229424
2009-09-17

Curvature conformable gripping dies

#404
20090145614
2009-06-11

Apparatus for controlling slip deployment in a downhole device and method of use

#405
20090139732
2009-06-04

Downhole swaging system and method

#406
20090078407
2009-03-26

Retrievable downhole packer assembly

#407
20090071660
2009-03-19

Low stress traction system

#408
20090071659
2009-03-19

Anchoring system for use in a wellbore

#409
20090038808
2009-02-12

Tangentially-loaded high-load retrievable slip system

#410
20090038790
2009-02-12

Downhole tool with slip elements having a friction surface

#411
20080314583
2008-12-25

Retrievable bridge plug

#412
20080308266
2008-12-18

Drillable bridge plug

#413
20080264627
2008-10-30

Permanent anchoring device

#414
20080230235
2008-09-25

Downhole bridge plug or packer setting assembly and method

#415
20080196884
2008-08-21

Expandable packer with mounted exterior slips and seal

#416
20080073086
2008-03-27

Apparatus for controlling slip deployment in a downhole device

#417
20070267824
2007-11-22

Seal and slip assembly for expandable downhole tools

#418
20070227745
2007-10-04

Secondary lock for a downhole tool

#419
20070102165
2007-05-10

Self centralizing non-rotational slip and cone system for downhole tools

#420
20070029084
2007-02-08

Retrievable plug system and methods of use

#421
20060272828
2006-12-07

Downhole tool and running tool system for retrievably setting a downhole tool at locations within a well bore

#422
20060266527
2006-11-30

Apparatus for radially expanding and plastically deforming a tubular member

#423
20060243444
2006-11-02

apparatus for radially expanding and plastically deforming a tubular member

#424
20050230108
2005-10-20

Liner top test packer

#425
20050224226
2005-10-13

Force transfer apparatus to assist release of loaded member

#426
20050217869
2005-10-06

High pressure expandable packer

#427
20050189121
2005-09-01

Expandable packer with mounted exterior slips and seal

#428
20050189120
2005-09-01

Slotted slip element for expandable packer

#429
20050189103
2005-09-01

Drillable bridge plug

#430
20050167097
2005-08-04

Patriot retrievable production packer

#431
20050161229
2005-07-28

Expandable packer with anchoring feature

#432
20050069691
2005-03-31

Slip element for use with a downhole tool and a method of manufacturing same

#433
20050034876
2005-02-17

Expandable packer with anchoring feature

#434
20050028989
2005-02-10

Expandable packer with anchoring feature

#435
19222343
2025-11-18

Release assist assembly, and method, for double grip packer with opposed slips

#436
19086826
2026-05-19

Downhole plug

#437
18760437
2025-03-25

Degradable delivery devices to facilitate dissolution of degradable downhole tools

#438
18636200
2025-07-01

All-metal dissolvable ball seat for self-compensating fracturing

#439
18083662
2023-05-30

Methods and systems for fracing and casing pressuring

#440
16523062
2020-06-02

Degradable downhole tools and components

#441
16428496
2020-10-20

Plug apparatus and methods for oil and gas wellbores

#442
15898067
2019-09-03

Retrievable downhole tool

#443
15241602
2019-07-30

Degradable downhole tools and components

#444
14837428
2016-12-27

Wellbore perforating tool

#445
14453770
2015-04-07

Electrical submergible pumping system using a power crossover assembly for a power supply connected to a motor

#446
13953913
2016-08-02

Caged ball fractionation plug

#447
13361477
2016-01-05

Slip assembly

#448
13331467
2015-04-14

Seal apparatus for restriction of movement of sand in an oil well