ClassID:

135402

E21B23/002 - CPC Classification

Classification description:

Recent Application in this class:
#1
20210180426
2021-06-17

Wire line deployable metal patch stackable system

#2
20200300061
2020-09-24

System and method for drilling lateral boreholes using articulated drill string components

#3
20200248515
2020-08-06

Articulated wireline hole finder

#4
20200157898
2020-05-21

System and method for reverse Y-tool bypass

#5
20200149370
2020-05-14

Actuatable deflector for a completion sleeve in multilateral wells

#6
20200095832
2020-03-26

System for guiding a tubular during subterranean drilling operations

#7
20200080402
2020-03-12

Support device for tubing string

#8
20190368291
2019-12-05

By-pass system and method for inverted ESP completion

#9
20190360287
2019-11-28

Latch mechanism and system for downhole applications

#10
20190353001
2019-11-21

Wellbore parted casing access tool

#11
20190353000
2019-11-21

Wellbore parted casing access tool

#12
20190309590
2019-10-10

Conveyance member for a resource exploration and recovery system

#13
20190234191
2019-08-01

Compact lubricator and header system

#14
20190186222
2019-06-20

Plug deflector for isolating a wellbore of a multi-lateral wellbore system

#15
20190085662
2019-03-21

Multilateral junction with wellbore isolation

#16
20190017333
2019-01-17

Surface controlled reversible coiled tubing valve assembly

#17
20180371881
2018-12-27

TOOL, METHOD AND SYSTEM FOR WELL SERVICES

#18
20180363411
2018-12-20

Wellbore parted casing access tool

#19
20180328148
2018-11-15

Lateral deflector with feedthrough for connection to intelligent systems

#20
20180308034
2018-10-25

New Foamed Diverter/Sand Control Model for Fluid Diversion in Integrated Wellbore-Reservoir System

#21
20180274314
2018-09-27

Latch mechanism and system for downhole applications

#22
20180209224
2018-07-26

One trip treating tool for a resource exploration system and method of treating a formation

#23
20180195355
2018-07-12

Articulated wireline hole finder

#24
20180112497
2018-04-26

Flow through treatment string for one trip multilateral treatment

#25
20180030827
2018-02-01

Adjustable bent housings with measurement mechanisms

#26
20170356260
2017-12-14

Guide System for Navigating Through a Wellbore

#27
20170306732
2017-10-26

Automatic Y-tool

#28
20170152718
2017-06-01

Casing windowing method and tool using coiled tubing

#29
20170130565
2017-05-11

Erosion-Resistant Multilateral Junctions

#30
20160348476
2016-12-01

Expandable bullnose assembly for use with a wellbore deflector

#31
20160341011
2016-11-24

Multilateral junction with wellbore isolation

#32
20160341010
2016-11-24

Multilateral junction with wellbore isolation using degradable isolation components

#33
20160290079
2016-10-06

Deflector assembly for a lateral wellbore

#34
20160265314
2016-09-15

Methods and systems for orienting in a wellbore

#35
20160265295
2016-09-15

One-trip cut and pull system and apparatus

#36
20160258228
2016-09-08

Automated locking joint in a welbore tool string

#37
20160245046
2016-08-25

Variable diameter bullnose assembly

#38
20160237805
2016-08-18

Methods and systems for orienting a tool in a wellbore

#39
20160153253
2016-06-02

Expandable bullnose assembly for use with a wellbore deflector

#40
20160153252
2016-06-02

Deflector assembly for a lateral wellbore

#41
20160145956
2016-05-26

Whipstock and deflector assembly for multilateral wellbores

#42
20160108685
2016-04-21

Articulated wireline hole finder

#43
20160010408
2016-01-14

Orientation of downhole well tools

#44
20150361764
2015-12-17

Multi-circulation valve apparatus and method

#45
20150354302
2015-12-10

Well instrumentation deployment past a downhole tool for in situ hydrocarbon recovery operations

#46
20150345241
2015-12-03

Whipstock assembly having anchor and eccentric packer

#47
20150285016
2015-10-08

Deflector assembly for a lateral wellbore

#48
20150267508
2015-09-24

Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly

#49
20150252630
2015-09-10

Drill string stabilizer recovery improvement features

#50
20150218899
2015-08-06

Methods of using an expandable bullnose assembly with a wellbore deflector

#51
20150184474
2015-07-02

Adjustable bullnose assembly for use with a wellbore deflector assembly

#52
20150176353
2015-06-25

Bore selection apparatus

#53
20150047853
2015-02-19

System and methodology for mechanically releasing a running string

#54
20150047840
2015-02-19

System and methodology for locating a deflector

#55
20150004004
2015-01-01

Downhole electromagnetic pump and methods of use

#56
20140238659
2014-08-28

Articulated wireline hole finder

#57
20140144617
2014-05-29

System for circumferentially aligning a downhole latch subsystem

#58
20140124198
2014-05-08

Remote activated deflector

#59
20140116728
2014-05-01

Multi-lateral re-entry guide and method of use

#60
20140034298
2014-02-06

Remote activated deflector

#61
20140008130
2014-01-09

Wellbore casing section with moveable portion for providing a casing exit

#62
20130306324
2013-11-21

Systems and methods for operating a plurality of wells through a single bore

#63
20130277064
2013-10-24

Submersible pump systems and methods

#64
20130248204
2013-09-26

Manipulator tool and tool catcher useful with wellbore reverse circulation

#65
20130068480
2013-03-21

Apparatus and Method for Transitioning a Tool Around the Radius of a Whipstock with Internal Guide Channel

#66
20130025878
2013-01-31

Surface controlled reversible coiled tubing valve assembly

#67
20130014957
2013-01-17

Downhole guiding tool

#68
20120298362
2012-11-29

Window joint for lateral wellbore construction and method for opening same