ClassID:

135412

E21B23/08 - CPC Classification

Classification description:

Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems

Sub-classes:
Recent Application in this class:
#1
20260139575
2026-05-21

ESP WITH IMPROVED DEPLOYMENT FOR LIVE INTERVENTION

#2
20260139562
2026-05-21

Pressure Control System for Fracking Operations

#3
20250263993
2025-08-21

EXTENDED CHEMICAL TREATMENT IN SUBTERRANEAN WELLS

#4
20250154867
2025-05-15

CONVEYANCE APPARATUS, SYSTEMS, AND METHODS

#5
20250059843
2025-02-20

Fixed-Volume Setting Tool

#6
20250020029
2025-01-16

SYSTEMS AND METHODS FOR CONTROLLING HEAD TENSION

#7
20240328271
2024-10-03

WIRELINE PRESSURE CONTROL STRING WITH PUMPDOWN ASSEMBLY

#8
20240318530
2024-09-26

IN SITU INJECTION OR PRODUCTION VIA A WELL USING DART-ACTUATED VALVE ASSEMBLIES AND RELATED SYSTEM AND METHOD

#9
20240295346
2024-09-05

Geothermal systems and methods with an underground magma chamber

#10
20240254867
2024-08-01

SLEEVE AND PLUG SYSTEM AND METHOD

#11
20240229569
2024-07-11

Roller sub for reducing torque on a tool string

#12
20240209719
2024-06-27

ELECTRIC POWERED PUMP DOWN

#13
20240209705
2024-06-27

Systems and processes for pigging across a boundary between a first body rotatively coupled to a second body

#14
20240200427
2024-06-20

Energy generation device for a pigging tool in a pipeline

#15
20240175329
2024-05-30

DOWNHOLE CATCHING DEVICE AND TOOL COMBINATION

#16
20240151120
2024-05-09

SLIDABLE ISOLATION SLEEVE WITH I-SHAPED SEAL

#17
20240133258
2024-04-25

System and method for navigating a downhole environment

#18
20240117695
2024-04-11

PNEUMATIC TRANSPORT SYSTEM AND METHOD FOR WELLBORE OPERATIONS

#19
20230417116
2023-12-28

SYSTEM AND METHOD FOR CONTROLLING WELL OPERATIONS

#20
20230399908
2023-12-14

Wireline pressure control string with pumpdown assembly

#21
20230332475
2023-10-19

Fixed-volume setting tool

#22
20230287772
2023-09-14

ESP with Improved Deployment for Live Intervention

#23
20230220746
2023-07-13

Liquid spring communication sub

#24
20230167714
2023-06-01

Slidable isolation sleeve with I-shaped seal

#25
20230109922
2023-04-13

Apparatus for Verifying the Inner Diameter of Tubulars Forming A Tubular String

#26
20230064658
2023-03-02

Mechanical jar, method and system

#27
20230038625
2023-02-09

Model based adaptive control scheme for pump down operation

#28
20230015105
2023-01-19

System and method of monitoring a downhole stimulation operation featuring retrievable cable

#29
20220381099
2022-12-01

LINER HANGER RUNNING TOOL

#30
20220341283
2022-10-27

Method and apparatus for fluid-activated shifting tool to actuate a plug assembly

#31
20220268151
2022-08-25

Conveyance apparatus, systems, and methods

#32
20220220842
2022-07-14

INDICATION OF COMPRESSION LOADING IN DOWNHOLE TOOL STRINGS

#33
20220213748
2022-07-07

System and method for retrieving in-line leak detection devices

#34
20220205343
2022-06-30

Dissolvable expendable guns for plug-and-perf applications

#35
20220145715
2022-05-12

Pump down pipe severing tool

#36
20220112780
2022-04-14

Pneumatic transport system and method for wellbore operations

#37
20220106859
2022-04-07

Downhole wellbore treatment system and method

#38
20220056774
2022-02-24

Pump down assist apparatus

#39
20220049564
2022-02-17

Sealed pressured horizontal directional drilling continuous coring device for engineering geological investigation

#40
20210404291
2021-12-30

Pump down intervention tool and assembly

#41
20210301614
2021-09-30

On-demand hydrostatic/hydraulic trigger system

#42
20210215469
2021-07-15

Apparatus for verifying the inner diameter of tubulars forming a tubular string

#43
20210190234
2021-06-24

Coiled tubing system

#44
20210040809
2021-02-11

Delivery system

#45
20200408053
2020-12-31

Latching apparatus and method

#46
20200386223
2020-12-10

Multi-layer coating for plunger and/or packing sleeve

#47
20200332618
2020-10-22

Wellhead launcher system and method

#48
20200300053
2020-09-24

Operational system for launching, managing and controlling a robot autonomous unit (RAU) for operations in oil and gas wells and method of well logging

#49
20200224508
2020-07-16

Real-time pump-down perforating data acquisition and application automation response

#50
20200199943
2020-06-25

Flange casting wireline drum

#51
20200190932
2020-06-18

Delivery system

#52
20200181997
2020-06-11

Downhole tool with long projecting extension

#53
20200157909
2020-05-21

Autonomous unit launching system for oil and gas wells logging, method of installation and uninstallation of said autonomous unit in the system and rescue system

#54
20200063514
2020-02-27

Well access apparatus and method

#55
20200003018
2020-01-02

System for setting a downhole tool

#56
20190368301
2019-12-05

Drone conveyance system and method

#57
20190360303
2019-11-28

Rolling seal for transfer of pressure in a downhole tool

#58
20190360287
2019-11-28

Latch mechanism and system for downhole applications

#59
20190345804
2019-11-14

Electric powered pump down

#60
20190316449
2019-10-17

Perforating systems and flow control for use with well completions

#61
20190284889
2019-09-19

Perforating gun

#62
20190203575
2019-07-04

Downhole equipment transport control

#63
20190203551
2019-07-04

Retractable pump down ring

#64
20190169954
2019-06-06

Light and buoyant retrievable assembly—wellbore tool and method

#65
20190136652
2019-05-09

Universal drilling and completion system

#66
20190106960
2019-04-11

Pump down isolation plug

#67
20190055791
2019-02-21

Subsea rotating control device apparatus having debris barrier

#68
20190022714
2019-01-24

Gas line cleanout assembly

#69
20180371881
2018-12-27

TOOL, METHOD AND SYSTEM FOR WELL SERVICES

#70
20180328161
2018-11-15

Braking devices for drilling operations, and systems and methods of using same

#71
20180298711
2018-10-18

Systems for removing blockages in subsea flowlines and equipment

#72
20180258737
2018-09-13

Methods and systems for setting and unsetting packers within a well

#73
20180230775
2018-08-16

Multi-stage hydraulic fracturing tool and system

#74
20180216430
2018-08-02

Deployment of downhole sensing devices

#75
20180202249
2018-07-19

Downhole Tool Actuation Methods

#76
20170370169
2017-12-28

Plug launching system and method

#77
20170362914
2017-12-21

Borehole data transmission method for flowed back borehole plugs with a lower slip assembly or object landed on said plugs

#78
20170342799
2017-11-30

Downhole completion with enclosed sensor

#79
20170314380
2017-11-02

Electric powered pump down

#80
20170314353
2017-11-02

Assessment of pumpoff risk

#81
20170298718
2017-10-19

Deploying mineral insulated cable down-hole

#82
20170260828
2017-09-14

Flow control in subterranean wells

#83
20170254165
2017-09-07

Actuation dart for wellbore operations, wellbore treatment apparatus and method

#84
20170241221
2017-08-24

Model-based pump-down of wireline tools

#85
20170198565
2017-07-13

Reverse flow sleeve actuation method

#86
20170175488
2017-06-22

Indexing dart system and method for wellbore fluid treatment

#87
20170175468
2017-06-22

Universal drilling and completion system

#88
20170152725
2017-06-01

Flow control system

#89
20170101844
2017-04-13

Telemetry operated ball release system

#90
20170101838
2017-04-13

Hydraulically released running tool for setting a whipstock anchor before cementing therethrough

#91
20170037707
2017-02-09

Downhole tool

#92
20170030178
2017-02-02

Electric powered pump down

#93
20170030156
2017-02-02

Method and apparatus for severing a drill string

#94
20170016318
2017-01-19

METHOD AND APPARATUS FOR COMMUNICATION OF WELLBORE DATA, INCLUDING VISUAL IMAGES

#95
20160376860
2016-12-29

SUBSEA FILLER LINE SYSTEM AND METHOD FOR TRANSPORTING VARIOUS FLUIDS THROUGH A MASTER FLOW CONDUIT

#96
20160369593
2016-12-22

Downhole tool

#97
20160305213
2016-10-20

Drill tool insert removal

#98
20160251923
2016-09-01

Multi-zone actuation system using wellbore darts

#99
20160194939
2016-07-07

Hydraulically assisted deployed ESP system

#100
20160160619
2016-06-09

Downhole hydraulic Jetting Assembly

#101
20160160601
2016-06-09

Telescoping latching mechanism for casing cementing plug

#102
20160123110
2016-05-05

Well plug and abandonment choke insert

#103
20160108691
2016-04-21

EXTENDED REACH PLACEMENT OF WELLBORE COMPLETIONS

#104
20160097239
2016-04-07

Method and device for making a lateral opening out of a wellbore

#105
20160076325
2016-03-17

Cable system control using fluid flow for applying locomotive force

#106
20160061023
2016-03-03

Method and apparatus for through-tubular sensor deployment

#107
20160060766
2016-03-03

SYSTEM INCLUDING ONE-PIECE COILED VENT PIPE FOR DEEP ANODE CATHODIC PROTECTION AND METHOD OF INSTALLING THE SAME

#108
20160040492
2016-02-11

Composite fracture plug and associated methods

#109
20160017678
2016-01-21

Fluid flow during landing of logging tools in bottom hole assembly

#110
20160010420
2016-01-14

Wellbore isolation system with communication lines

#111
20150368995
2015-12-24

Hydrostatic setting tool

#112
20150361764
2015-12-17

Multi-circulation valve apparatus and method

#113
20150354301
2015-12-10

Electrodynamic and electromagnetic suspension system tractor

#114
20150330211
2015-11-19

System for measuring downhole parameters and a method of using same

#115
20150330172
2015-11-19

Pump down conveyance

#116
20150315863
2015-11-05

Universal drilling and completion system

#117
20150292285
2015-10-15

FLUID FLOW DURING LANDING OF LOGGING TOOLS IN BOTTOM HOLE ASSEMBLY

#118
20150275633
2015-10-01

Selectively actuated plungers and systems and methods including the same

#119
20150252643
2015-09-10

Method of selective release of an object to a seat on a frack plug from immediately adjacent the frack plug

#120
20150252642
2015-09-10

Method of recovery of an occluding object for a frack plug in the event of gun misfire

#121
20150247377
2015-09-03

Downhole power delivery tool powered by hydrostatic pressure

#122
20150226019
2015-08-13

Wireless downhole tool positioning control

#123
20150218899
2015-08-06

Methods of using an expandable bullnose assembly with a wellbore deflector

#124
20150184477
2015-07-02

Method and Device for a Running Tool

#125
20150136425
2015-05-21

Automated remote actuation system

#126
20150136416
2015-05-21

Downhole apparatus

#127
20150129229
2015-05-14

Method and apparatus for hydraulic fracturing

#128
20150096765
2015-04-09

Fluid container reloading tool

#129
20150075819
2015-03-19

Method and apparatus for dual instrument installation in a wellbore

#130
20150068727
2015-03-12

Subterranean tool for release of balls adjacent their intended destinations

#131
20150042487
2015-02-12

Latching assembly for wellbore logging tools and method of use

#132
20140374089
2014-12-25

Automated diversion valve control for pump down operations

#133
20140216731
2014-08-07

Method and assembly for conveying well logging tools

#134
20140196888
2014-07-17

Flow control system

#135
20140174762
2014-06-26

Method and apparatus for pipe-conveyed well logging

#136
20140158350
2014-06-12

ALL PURPOSE PUMPDOWN INSTRUMENT

#137
20140151019
2014-06-05

Magnetic key for operating a multi-position downhole tool

#138
20140116724
2014-05-01

Coiled tubing pump down system

#139
20140102723
2014-04-17

Telescoping latching mechanism for casing cementing plug

#140
20140102690
2014-04-17

Pipe in pipe piston thrust system

#141
20140048288
2014-02-20

Hydrostatic pressure actuated stroke amplifier for downhole force generator

#142
20140034310
2014-02-06

Multi-zone cemented fracturing system

#143
20130341007
2013-12-26

Wireless downhole tool positioning control

#144
20130299196
2013-11-14

Extended reach placement of wellbore completions

#145
20130264056
2013-10-10

Multizone frac system

#146
20130248204
2013-09-26

Manipulator tool and tool catcher useful with wellbore reverse circulation

#147
20130248187
2013-09-26

Inflatable collar and downhole method for moving a coiled tubing string

#148
20130220638
2013-08-29

Hydrostatic setting tool

#149
20130206402
2013-08-15

Actuation dart for wellbore operations, wellbore treatment apparatus and method

#150
20130186628
2013-07-25

Downhole tool hydraulic retriever

#151
20130180730
2013-07-18

Hydraulic assist deployment system for artificial lift systems

#152
20130138254
2013-05-30

Automated controls for pump down operations

#153
20130118762
2013-05-16

Wireline supported bi-directional shifting tool with pumpdown feature

#154
20130008666
2013-01-10

Method for conveying balls downhole using a ball carrier medium

#155
20130000887
2013-01-03

Downhole tool with pumpable section

#156
20120277997
2012-11-01

Device and a system and a method of examining a tubular channel

#157
20120222862
2012-09-06

WELL PLUG AND ABANDONMENT CHOKE INSERT

#158
20120205125
2012-08-16

SYSTEM AND METHOD FOR DELIVERING A CABLE DOWNHOLE IN A WELL

#159
20120125629
2012-05-24

Downhole tool

#160
20120111580
2012-05-10

TOOL AND METHOD FOR PLACEMENT OF A COMPONENT INTO A WELL

#161
20120111576
2012-05-10

Downhole tool

#162
20120103592
2012-05-03

Down hole well tool provided with a piston

#163
20120090829
2012-04-19

Free mandrel system, protected casing

#164
20120073828
2012-03-29

Downhole material delivery

#165
20120043459
2012-02-23

Using LWT service to identify loss circulation areas in a wellbore

#166
20120024521
2012-02-02

Hydraulic lubricator for use at a wellhead

#167
20110311313
2011-12-22

METHOD FOR MOUNTING A TUBE IN THE GROUND

#168
20110297398
2011-12-08

INSTALLING A CABLE IN AN UNDERWATER WELL INSTALLATION

#169
20110192613
2011-08-11

Cluster opening sleeves for wellbore treatment and method of use

#170
20110172922
2011-07-14

Drop/Pump Memory Through-Casing Measurement Logging Tools

#171
20110083856
2011-04-14

SENSOR DEPLOYMENT AND RETRIEVAL SYSTEM USING FLUID DRAG FORCE

#172
20110079433
2011-04-07

Pump-in seal

#173
20110079401
2011-04-07

Equipment and Methods for Deploying Line in a Wellbore

#174
20110042079
2011-02-24

Method and apparatus for pipe-conveyed well logging

#175
20100319935
2010-12-23

METHOD AND DEVICE FOR A RUNNING TOOL

#176
20100314107
2010-12-16

Method and device for transferring signals within a well

#177
20100314098
2010-12-16

System and method for delivering a cable downhole in a well

#178
20100282463
2010-11-11

Pump in reverse outliner drilling system

#179
20100212914
2010-08-26

Hydraulic Installation Method and Apparatus for Installing a Submersible Pump

#180
20100212911
2010-08-26

Triggering mechanism discriminated by length difference

#181
20100206580
2010-08-19

Tools and methods useful with wellbore reverse circulation

#182
20100200230
2010-08-12

Method and Apparatus for Multi-Zone Stimulation

#183
20100089567
2010-04-15

Measurement device in a horizontal well

#184
20100018693
2010-01-28

Pipeline entry system

#185
20090288886
2009-11-26

Retrieval tool with slips for retrieving bottom hole assembly during casing while drilling operations

#186
20090288841
2009-11-26

Circulation system for retrieval of bottom hole assembly during casing while drilling operations

#187
20090288839
2009-11-26

Controlling backflow pressure during retrieval of bottom hole assembly

#188
20090288821
2009-11-26

Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations

#189
20090283261
2009-11-19

Continuous fibers for use in well completion, intervention, and other subterranean applications

#190
20090260834
2009-10-22

Intervention rod

#191
20090194275
2009-08-06

Methods of retrieving data from a pipe conveyed well logging assembly

#192
20090173495
2009-07-09

Drifting tubing

#193
20090148110
2009-06-11

Optical fiber for pumping and method

#194
20090145613
2009-06-11

OPTICAL FIBER FOR PUMPING AND METHOD

#195
20090095466
2009-04-16

Downhole force generator

#196
20090090512
2009-04-09

System and method for delivering a cable downhole in a well

#197
20090090511
2009-04-09

System and method for controlling solids in a down-hole fluid pumping system

#198
20090071661
2009-03-19

Apparatus and methods for running liners in extended reach wells

#199
20090065219
2009-03-12

Method and a device for setting a casing

#200
20090025981
2009-01-29

Method for drilling with casing

#201
20080314579
2008-12-25

Method and system for inserting a fiber optical sensing cable into an underwater well

#202
20080223572
2008-09-18

Method for drilling and casing a wellbore with a pump down cement float

#203
20080156485
2008-07-03

Wellbore surveying system and method

#204
20080156477
2008-07-03

Deployment tool for well logging instruments conveyed through the interior of a pipe string

#205
20080110677
2008-05-15

Conveyor tube for use in installing or replacing a well tool in a producing well and procedures for use of the same

#206
20070295507
2007-12-27

Valve seat

#207
20070272412
2007-11-29

Downhole tool for selectively catching balls in a well bore

#208
20070204993
2007-09-06

Method for drilling and casing a wellbore with a pump down cement float

#209
20070181304
2007-08-09

Method and apparatus for completing a horizontal well

#210
20070169943
2007-07-26

Method and device for establishing an underground well

#211
20070158069
2007-07-12

Method for drilling and casing a wellbore with a pump down cement float

#212
20070126595
2007-06-07

Logging system, method of logging an earth formation and method of producing a hydrocarbon fluid

#213
20070068677
2007-03-29

Casing bottom hole assembly retrieval process

#214
20070051538
2007-03-08

Method for drilling with casing

#215
20070012435
2007-01-18

Downhole force generator

#216
20070000697
2007-01-04

Puller-thruster downhole tool

#217
20060289169
2006-12-28

METHOD AND APPARATUS FOR INSTALLING CASING IN A BOREHOLE

#218
20060278405
2006-12-14

Method and apparatus for friction reduction in a downhole tool

#219
20060196696
2006-09-07

Electrically sequenced tractor

#220
20060196694
2006-09-07

Electrically sequenced tractor

#221
20060185844
2006-08-24

Downhole device to measure and record setting motion of packers and method of sealing a wellbore

#222
20060153508
2006-07-13

System and method for deploying an optical fiber in a well

#223
20060108151
2006-05-25

Puller-thruster downhole tool

#224
20060102348
2006-05-18

Drifting tubing

#225
20060086508
2006-04-27

Placing fiber optic sensor line

#226
20060060357
2006-03-23

Subsea wellhead arrangement for hydraulically pumping a well

#227
20050279511
2005-12-22

Method and apparatus for deploying a line in coiled tubing

#228
20050252686
2005-11-17

Electrically sequenced tractor

#229
20050217855
2005-10-06

Method and a device for removing a hydrate plug

#230
20050189115
2005-09-01

Subsea intervention

#231
20050109518
2005-05-26

Fiber optic deployment apparatus and method

#232
20050061518
2005-03-24

Apparatus and method for installing casing in a borehole

#233
20050034873
2005-02-17

Placing fiber optic sensor line

#234
18989770
2026-04-21

System and method for managing tools

#235
18783803
2025-10-07

Pipe cutting tool

#236
18228739
2023-12-12

Multi-stage perforation and shock wave combined device and method for initial fracture enhancement

#237
17214878
2022-07-12

Wellbore dart with separable and expandable tool activator

#238
15951128
2020-04-07

System and method of utilizing a drone to deploy frac balls in an open well bore

#239
13670283
2016-12-20

Capillary pump down tool