ClassID:

135406

E21B23/01 - page 4 - CPC Classification

Classification description:

Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like

Recent Application in this class:
#901
20130206409
2013-08-15

One-way flowable anchoring system and method of treating and producing a well

#902
20130206392
2013-08-15

Fracturing tool anchor

#903
20130186650
2013-07-25

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

#904
20130186649
2013-07-25

Tubular anchoring system and method

#905
20130186648
2013-07-25

Tubular anchoring system and method

#906
20130186647
2013-07-25

Tubular anchoring system and method

#907
20130186616
2013-07-25

Tubular anchoring system and a seat for use in the same

#908
20130180715
2013-07-18

Methods and apparatus for cementing wells

#909
20130161965
2013-06-27

Circumferential cams for mechanical case running tool

#910
20130146311
2013-06-13

Selective set module for multi string packers

#911
20130146308
2013-06-13

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

#912
20130146307
2013-06-13

TREATMENT PLUG AND METHOD OF ANCHORING A TREATMENT PLUG AND THEN REMOVING A PORTION THEREOF

#913
20130112479
2013-05-09

Tubular catcher system and method

#914
20130048315
2013-02-28

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

#915
20130048314
2013-02-28

Downhole tool and method of use

#916
20130048313
2013-02-28

Downhole tool and method of use

#917
20130048311
2013-02-28

Apparatus and methods for assisting in setting a downhole tool in a well bore

#918
20130048305
2013-02-28

Degradable slip element

#919
20130048287
2013-02-28

Hydraulic stabilizer for use with a downhole casing cutter

#920
20130048272
2013-02-28

Downhole tool and method of use

#921
20130048271
2013-02-28

Downhole tool and method of use

#922
20130037271
2013-02-14

Bridging hanger and seal running tool

#923
20130025884
2013-01-31

Low stress traction system

#924
20130020092
2013-01-24

Remote manipulation and control of subterranean tools

#925
20130014939
2013-01-17

Electric hydraulic interface for a modular downhole tool

#926
20130008640
2013-01-10

Flowbore mounted sensor package

#927
20120325479
2012-12-27

Coiled tubing bottom hole assembly with packer and anchor assembly

#928
20120318532
2012-12-20

Temperature Resistant Downhole Elastomeric Device

#929
20120318509
2012-12-20

Modular anchoring sub for use with a cutting tool

#930
20120305269
2012-12-06

System and method for casing hanger running

#931
20120298378
2012-11-29

WELLBORE ANCHOR

#932
20120298361
2012-11-29

Select fire stackable gun system

#933
20120292028
2012-11-22

Tubular cutting with a sealed annular space and fluid flow for cuttings removal

#934
20120292027
2012-11-22

Tubular cutting with debris filtration

#935
20120285699
2012-11-15

Subsea cap

#936
20120285678
2012-11-15

Running tool

#937
20120273238
2012-11-01

Jacking units and bellows for down hole intervention tools

#938
20120273236
2012-11-01

Expandable open-hole anchor

#939
20120267099
2012-10-25

System and method for deploying a downhole casing patch

#940
20120241171
2012-09-27

Multiple Liner Hanger Assembly

#941
20120241146
2012-09-27

Wireless downhole tool positioning system

#942
20120234560
2012-09-20

Restricted axial movement locking mechanism

#943
20120222866
2012-09-06

Tubing hanger—production tubing suspension arrangement

#944
20120211245
2012-08-23

Downhole clamping mechanism

#945
20120211224
2012-08-23

Wireless downhole tool positioning system

#946
20120211220
2012-08-23

Torque absorbtion anchor system and method to assemble same

#947
20120205092
2012-08-16

ANCHORING AND SEALING TOOL

#948
20120181048
2012-07-19

Debris barrier assembly

#949
20120175105
2012-07-12

System and method for anchoring an expandable tubular to a borehole wall

#950
20120160524
2012-06-28

COMPLETION ASSEMBLY AND A METHOD FOR STIMULATING, SEGMENTING AND CONTROLLING ERD WELLS

#951
20120160480
2012-06-28

System and method for anchoring an expandable tubular to a borehole wall

#952
20120152526
2012-06-21

System and method for anchoring an expandable tubular to a borehole wall

#953
20120103618
2012-05-03

Valve for a sand slurry system

#954
20120103612
2012-05-03

System and method for opening a window in a casing string for multilateral wellbore construction

#955
20120097399
2012-04-26

Expandable anchoring mechanism

#956
20120090847
2012-04-19

Tools and methods for use in completion of a wellbore

#957
20120085539
2012-04-12

Well tool and method for in situ introduction of a treatment fluid into an annulus in a well

#958
20120061104
2012-03-15

Downhole tool seal arrangement and method of sealing a downhole tubular

#959
20120061100
2012-03-15

LINER HANGER

#960
20120061099
2012-03-15

Anchor for a tubing string and method

#961
20120061074
2012-03-15

Gripper assembly for downhole tools

#962
20120055683
2012-03-08

System and methods for tubular expansion

#963
20120037381
2012-02-16

Anchor for use with expandable tubular

#964
20120013133
2012-01-19

Positive retraction latch locking dog for a rotating control device

#965
20120012305
2012-01-19

Downhole C-ring slip assembly

#966
20110315371
2011-12-29

OPEN-HOLE ANCHOR WHIPSTOCK SYSTEM

#967
20110308797
2011-12-22

Wireless downhole tool positioning system

#968
20110284208
2011-11-24

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

#969
20110278070
2011-11-17

System and method for drilling lateral boreholes

#970
20110277990
2011-11-17

Anchoring systems for drilling tools

#971
20110253386
2011-10-20

Anchor system and method for anchoring a tool with a positional bias

#972
20110240306
2011-10-06

Bridging hanger and seal running tool

#973
20110232920
2011-09-29

Full bore system without stop shoulder

#974
20110226490
2011-09-22

Method and system for one-trip hanger installation

#975
20110220370
2011-09-15

Method and system for fixing an element in a borehole

#976
20110198131
2011-08-18

Core barrel assemblies with braking devices

#977
20110198127
2011-08-18

Methods of braking core barrel assemblies

#978
20110198099
2011-08-18

Anchor apparatus and method

#979
20110168409
2011-07-14

High capacity running tool and method of setting a packoff seal

#980
20110155469
2011-06-30

Apparatus and Method for Positioning Extended Lateral Channel Well Stimulation Equipment

#981
20110146970
2011-06-23

Anchor tool

#982
20110127044
2011-06-02

Remotely controlled apparatus for downhole applications and methods of operation

#983
20110127030
2011-06-02

Lockable anchor for insertable progressing cavity pump

#984
20110073329
2011-03-31

Compression assembly and method for actuating downhole packing elements

#985
20110073328
2011-03-31

Actuation assembly and method for actuating a downhole tool

#986
20110073326
2011-03-31

Anchor assembly and method for anchoring a downhole tool

#987
20110073310
2011-03-31

Through tubing bridge plug and installation method for same

#988
20110061864
2011-03-17

WIRELESS PIPE RECOVERY AND PERFORATING SYSTEM

#989
20110048699
2011-03-03

System and method for anchoring an expandable tubular to a borehole wall

#990
20110042104
2011-02-24

Zero backlash downhole setting tool and method

#991
20110030955
2011-02-10

Hydraulically powered fishing tool and method

#992
20110011598
2011-01-20

Internal lockdown snubbing plug

#993
20110011575
2011-01-20

Straight-bore back pressure valve

#994
20110005778
2011-01-13

Method and system for anchoring and isolating a wellbore

#995
20100314131
2010-12-16

Variable linkage assisted gripper

#996
20100257913
2010-10-14

Resilient Anchor

#997
20100252278
2010-10-07

Anchor assembly and method of installing anchors

#998
20100252277
2010-10-07

High capacity running tool and method of setting a packoff seal

#999
20100252252
2010-10-07

Hydraulic setting assembly

#1000
20100243254
2010-09-30

Method and apparatus for isolating and treating discrete zones within a wellbore

#1001
20100212887
2010-08-26

Gripper assembly for downhole tools

#1002
20100195436
2010-08-05

Methods and systems for deploying seismic devices

#1003
20100155084
2010-06-24

SETTING TOOL FOR EXPANDABLE LINER HANGER AND ASSOCIATED METHODS

#1004
20100155083
2010-06-24

Open-hole anchor for whipstock system

#1005
20100139461
2010-06-10

Granular Particle Gripping Surface

#1006
20100126725
2010-05-27

Coiled tubing bottom hole assembly with packer and anchor assembly

#1007
20100108329
2010-05-06

Downhole injector system for CT and wireline drilling

#1008
20100101779
2010-04-29

Multiple-block downhole anchors and anchor assemblies

#1009
20100084140
2010-04-08

DOWNHOLE SEAL AND ANCHOR RELEASING SYSTEM AND METHOD

#1010
20100065283
2010-03-18

Release device

#1011
20100038096
2010-02-18

Downhole tool with slip releasing mechanism

#1012
20100025047
2010-02-04

Method and apparatus for retrieving an assembly from a wellbore

#1013
20100018696
2010-01-28

Downhole tool

#1014
20100018695
2010-01-28

Gripper assembly for downhole tools

#1015
20090308618
2009-12-17

System and method for supporting power cable in downhole tubing

#1016
20090260882
2009-10-22

Braking devices for use in drilling operations

#1017
20090242214
2009-10-01

Method and system for anchoring and isolating a wellbore

#1018
20090223659
2009-09-10

Through tubing gun lock

#1019
20090218143
2009-09-03

Apparatus and method for positioning extended lateral channel well stimulation equipment

#1020
20090211761
2009-08-27

Oil and gas well completion system and method of installation

#1021
20090188674
2009-07-30

System and method for preventing buckling during a gravel packing operation

#1022
20090159296
2009-06-25

Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore

#1023
20090159268
2009-06-25

Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore

#1024
20090151930
2009-06-18

Mechanical expansion system

#1025
20090139732
2009-06-04

Downhole swaging system and method

#1026
20090139709
2009-06-04

Self-boosting wedge tubing-to-casing seal

#1027
20090126926
2009-05-21

Torque anchor and method for using same

#1028
20090114400
2009-05-07

Downhole resettable clutch swivel

#1029
20090101362
2009-04-23

Anchor assembly for slickline setting tool for inflatables

#1030
20090071660
2009-03-19

Low stress traction system

#1031
20090071659
2009-03-19

Anchoring system for use in a wellbore

#1032
20090065196
2009-03-12

Methods and apparatus for anchoring and expanding tubular members

#1033
20090038808
2009-02-12

Tangentially-loaded high-load retrievable slip system

#1034
20090025943
2009-01-29

Method of anchoring a progressing cavity pump

#1035
20090014173
2009-01-15

Well bore anchors

#1036
20080308267
2008-12-18

Apparatus and methods for radially expanding a tubular member

#1037
20080302523
2008-12-11

Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs

#1038
20080264627
2008-10-30

Permanent anchoring device

#1039
20080257561
2008-10-23

Casing coupler liner hanger mechanism

#1040
20080230233
2008-09-25

Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore

#1041
20080216609
2008-09-11

Granular Particle Gripping Surface

#1042
20080210440
2008-09-04

Liner anchor for expandable casing strings and method of use

#1043
20080191420
2008-08-14

Insert seal unit and method for making the same

#1044
20080164017
2008-07-10

BOTTOM HOLE COMPLETION SYSTEM FOR AN INTERMITTENT PLUNGER

#1045
20080156499
2008-07-03

System and methods for tubular expansion

#1046
20080156478
2008-07-03

Universal tubing hanger suspension assembly and well completion system and method of using same

#1047
20080149339
2008-06-26

Variable linkage assisted gripper

#1048
20080142229
2008-06-19

Apparatus for radially expanding and plastically deforming a tubular member

#1049
20080115939
2008-05-22

Radial Expansion of Tubular Members

#1050
20080110642
2008-05-15

Seal cup for a wellbore tool and method

#1051
20080093090
2008-04-24

Sonde deployment

#1052
20080078559
2008-04-03

Gripper assembly for downhole tools

#1053
20080041583
2008-02-21

Anchoring device for a wellbore tool

#1054
20080029265
2008-02-07

Combined Anti-Rotation and Flow Control Tool

#1055
20080023195
2008-01-31

HYDRODYNAMIC, DOWN-HOLE ANCHOR

#1056
20070289749
2007-12-20

Anchor system for packers in well injection service

#1057
20070272405
2007-11-29

Ribbed sealing element and method of use

#1058
20070267824
2007-11-22

Seal and slip assembly for expandable downhole tools

#1059
20070256827
2007-11-08

Anchoring system and method

#1060
20070240878
2007-10-18

Apparatus for radial expansion of a tubular

#1061
20070227736
2007-10-04

System and method for unsticking a tool stuck in a wellbore

#1062
20070199719
2007-08-30

Apparatus and methods for radially expanding a tubular member

#1063
20070175631
2007-08-02

Extended reach anchor

#1064
20070175629
2007-08-02

Downhole/openhole anchor

#1065
20070144735
2007-06-28

Apparatus for radially expanding and plastically deforming a tubular member

#1066
20070125550
2007-06-07

Thru tubing tool and method

#1067
20070107913
2007-05-17

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

#1068
20070089885
2007-04-26

Bottom hold completion system for an intermittent plunger

#1069
20070068671
2007-03-29

Expandable wellbore assembly

#1070
20070034370
2007-02-15

Downhole tool

#1071
20070029080
2007-02-08

Deformable member

#1072
20070017670
2007-01-25

Gripper assembly for downhole tools

#1073
20060289172
2006-12-28

Depth control in coiled tubing operations

#1074
20060278404
2006-12-14

Embedded flex-lock slip liner hanger

#1075
20060273584
2006-12-07

Device which is expandable to engage the interior of a tube

#1076
20060260802
2006-11-23

Expansion device for expanding a pipe

#1077
20060260799
2006-11-23

Universal tubing hanger suspension assembly and well completion system and method of using same

#1078
20060248985
2006-11-09

Granular particle gripping surface

#1079
20060237188
2006-10-26

Compliant cladding seal/hanger

#1080
20060207771
2006-09-21

Apparatus and methods of use for a whipstock anchor

#1081
20060201716
2006-09-14

Gripper assembly for downhole tools

#1082
20060162921
2006-07-27

Slip energized by longitudinal shrinkage

#1083
20060151182
2006-07-13

Seal cup for a wellbore tool and method

#1084
20060131015
2006-06-22

Anchor arm for seismic logging tool

#1085
20060108125
2006-05-25

Anchor and method of using same

#1086
20060102338
2006-05-18

Anchoring device for a wellbore tool

#1087
20060037759
2006-02-23

Expandable whipstock anchor assembly

#1088
20050269073
2005-12-08

Wellbore anchor tool

#1089
20050263296
2005-12-01

Deformable member

#1090
20050263282
2005-12-01

Well abandonment apparatus

#1091
20050263280
2005-12-01

Method and apparatus for anchoring tool in borehole conduit

#1092
20050241836
2005-11-03

Tubing string anchoring tool

#1093
20050224233
2005-10-13

Hydrodynamic, down-hole anchor

#1094
20050194151
2005-09-08

Expandable anchor

#1095
20050178561
2005-08-18

Ribbed sealing element and method of use

#1096
20050155771
2005-07-21

Apparatus and methods for expanding tubulars in a wellbore

#1097
20050139361
2005-06-30

Torque anchor

#1098
20050133225
2005-06-23

Apparatus for and method of anchoring a first conduit to a second conduit

#1099
20050082055
2005-04-21

Gripper assembly for downhole tools

#1100
20050081358
2005-04-21

Radial expansion of tubular members

#1101
20050077051
2005-04-14

Radial expansion of tubular members

#1102
20050077046
2005-04-14

Apparatus and methods for separating and joining tubulars in a wellbore

#1103
20050045341
2005-03-03

Radial expansion of tubular members

#1104
20050045324
2005-03-03

Radial expansion of tubular members

#1105
20050039928
2005-02-24

Radial expansion of tubular members

#1106
20050028988
2005-02-10

Radial expansion of tubular members

#1107
20050023000
2005-02-03

Cement float

#1108
20050016739
2005-01-27

Tie back and method for use with expandable tubulars

#1109
20050006107
2005-01-13

One trip string tensioning and hanger securing method

#1110
19237563
2026-02-17

Tubing anchor with locking lug ring

#1111
19063272
2026-05-12

Hydraulic fracturing system and method using a downhole pulsing tool

#1112
19033915
2026-05-26

Pipeline valve systems and methods

#1113
18672452
2025-07-08

Anchoring tools and related methods

#1114
18640243
2025-10-21

Liner hanger with mechanically locked hydraulic actuator

#1115
18633020
2024-07-23

Integrated multi-slip sidetracking setting device for ultra-deep well

#1116
18621305
2025-08-19

Well tubing anchor and catcher tool assembly

#1117
18124863
2024-06-25

Compression sleeve structure for mounting magnets in downhole nuclear magnetic resonance application

#1118
17707042
2023-05-16

High expansion anti-rotation anchor catcher

#1119
17561405
2023-03-07

Downhole cutting tool positioning assemblies and methods to cut a tubular

#1120
17128402
2023-05-30

Rotating hanger assemblies and methods

#1121
16830845
2022-11-22

High expansion wedge

#1122
15466952
2019-06-04

Downhole bridge plugs reinforcing rings and reinforcing ring fabrication methods

#1123
15330645
2019-07-02

O-ring sealing for casing installation system

#1124
15190010
2018-07-24

Method for installation or removal of flexible liners from boreholes

#1125
14976302
2017-10-24

Milling-drilling section billet and anchoring device

#1126
14943984
2018-10-09

Casing hanger and running tool system

#1127
14837428
2016-12-27

Wellbore perforating tool

#1128
14599069
2015-08-25

Externally-orientated internally-corrected perforating gun system and method

#1129
14587509
2015-11-10

Method and apparatus for increasing load bearing capacity of a tubular string

#1130
14249209
2014-11-25

Control systems and methods for centering a tool in a wellbore

#1131
14029542
2015-10-13

Hydraulic anchor for oilfield service and method of using the same

#1132
13361477
2016-01-05

Slip assembly