ClassID:

135438

E21B29/08 - CPC Classification

Classification description:

Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows ; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground Cutting or deforming pipes to control fluid flow

Recent Application in this class:
#1
20240263534
2024-08-08

BOP PISTON BOOSTER AND BONNETT ASSEMBLY

#2
20230243223
2023-08-03

Cutting wellhead gate valve by water jetting

#3
20230167703
2023-06-01

Patching construction method using a hydraulic variable-grade expansion tool for blocking during drilling

#4
20230147178
2023-05-11

High ratio reamer

#5
20230113807
2023-04-13

Methods of pre-testing expansion charge for selectively expanding a wall of a tubular, and methods of selectively expanding walls of nested tubulars

#6
20230060155
2023-03-02

Shaped charge assembly, explosive units, and methods for selectively expanding wall of a tubular

#7
20230052359
2023-02-16

Device and apparatus

#8
20230036622
2023-02-02

Valve assembly for controlling fluid communication along a well tubular

#9
20230036377
2023-02-02

Method for producing extra force and reduced hydraulic supply for shearing pipe

#10
20220145717
2022-05-12

Advanced loading method for ball rotation cutting and method of use therefor

#11
20210404280
2021-12-30

Laser cutting tool

#12
20210293109
2021-09-23

Method and apparatus for pinching control lines

#13
20210230957
2021-07-29

Casing expander for well abandonment

#14
20210115745
2021-04-22

Method and apparatus for pinching control lines

#15
20210108477
2021-04-15

High ratio reamer

#16
20210102434
2021-04-08

Shaped charge assembly, explosive units, and methods for selectively expanding wall of a tubular

#17
20210054709
2021-02-25

Method for modifying installed wellbore flow control devices

#18
20200032608
2020-01-30

Fracturing systems and methods with rams

#19
20190284893
2019-09-19

Production tubing conversion device and methods of use

#20
20190277106
2019-09-12

Gate valve

#21
20190145214
2019-05-16

Dual compact cutting device intervention system

#22
20190078411
2019-03-14

BOP booster piston assembly and method

#23
20190017344
2019-01-17

Shear rams for a blowout preventer

#24
20180058170
2018-03-01

Shear blade

#25
20170370180
2017-12-28

Ball valve

#26
20170370170
2017-12-28

Failsafe valve system

#27
20170362911
2017-12-21

Guided locking ram blocks

#28
20170328160
2017-11-16

Method for recovering tubular structures from a well and a downhole tool string

#29
20170314355
2017-11-02

Safety valve for production wells

#30
20170314354
2017-11-02

Valve assembly and control method for extraction wells under emergency conditions

#31
20170159418
2017-06-08

Wellbore tubulars including a plurality of selective stimulation ports and methods of utilizing the same

#32
20170138152
2017-05-18

Valve apparatus

#33
20170130549
2017-05-11

Blowout preventer including shear body

#34
20170107779
2017-04-20

BOP booster piston assembly and method

#35
20170103151
2017-04-13

Methods for constructing surfaces for optimizing fluid flow

#36
20170101855
2017-04-13

DEBRIS TOLERANT FLEXIBLE ELEMENT VALVE

#37
20170058628
2017-03-02

Blowout preventer including blind seal assembly

#38
20160319624
2016-11-03

Blowout preventer with projectile

#39
20160312565
2016-10-27

Autonomous blowout preventer

#40
20160305210
2016-10-20

Perforator with a mechanical diversion tool and related methods

#41
20160290085
2016-10-06

Flow restriction device for well bore

#42
20160281462
2016-09-29

Valve with integral piston

#43
20160273296
2016-09-22

Closure apparatus

#44
20160215584
2016-07-28

Valve assembly

#45
20160138354
2016-05-19

Downhole umbilical release assembly

#46
20160102519
2016-04-14

Emergency valve assembly for extraction wells, well equipped with said valve and process for managing an extraction well with said valve under emergency conditions

#47
20150308208
2015-10-29

Plug and Gun Apparatus and Method for Cementing and Perforating Casing

#48
20150247370
2015-09-03

Explosive sever seal mechanism

#49
20150090462
2015-04-02

Fluid vent assembly and method of venting fluid

#50
20150027719
2015-01-29

Method and system for containing uncontrolled flow of reservoir fluids into the environment

#51
20150027692
2015-01-29

Multi-interval wellbore treatment method

#52
20150021029
2015-01-22

Method and apparatus for casing entry

#53
20140374100
2014-12-25

PUNCHING TOOL

#54
20140367116
2014-12-18

Ball check valve integration to ICD

#55
20140345872
2014-11-27

Laser assisted system for controlling deep water drilling emergency situations

#56
20140332225
2014-11-13

Cutting device, safety valve, method and uses for severing a pipe-string-related object in a safety valve for a well

#57
20140290949
2014-10-02

Apparatus, Module, Device and Method for Shearing Objects

#58
20140251633
2014-09-11

Subsea well intervention system and methods

#59
20140224500
2014-08-14

Well emergency separation tool for use in separating a tubular element

#60
20140124199
2014-05-08

Tubular assembly and method of deploying a downhole device using a tubular assembly

#61
20140116717
2014-05-01

Valve system

#62
20140110116
2014-04-24

Inductive shearing of drilling pipe

#63
20140041501
2014-02-13

Rotary actuated cutter module system and methodology

#64
20140034316
2014-02-06

Torsional shearing of oilfield tubulars

#65
20140014356
2014-01-16

Gate valve assembly

#66
20130327536
2013-12-12

Rotational shear valve

#67
20130264054
2013-10-10

Multi-interval wellbore treatment method

#68
20130233555
2013-09-12

Downhole punch component

#69
20130214183
2013-08-22

Collapsible casing device for use in controlling flow

#70
20130119288
2013-05-16

GATE SHEAR VALVE

#71
20130081823
2013-04-04

Valve

#72
20130008670
2013-01-10

Safety system for oil and gas drilling operations

#73
20120247770
2012-10-04

Methods of releasing at least one tubing string below a blow-out preventer

#74
20120217017
2012-08-30

Laser assisted system for controlling deep water drilling emergency situations

#75
20120152561
2012-06-21

Emergency subsea wellhead closure devices

#76
20110302987
2011-12-15

Deep water oil pipe pincher

#77
20110297237
2011-12-08

Apparatus For Emergency Electrodynamic Capping Of Pipes And Wells

#78
20110290501
2011-12-01

Method and system for containing uncontrolled flow of reservoir fluids into the environment

#79
20110278007
2011-11-17

Tool and method for providing access to a wellhead annulus

#80
20110036593
2011-02-17

FORMATION OF FLOW CONDUITS UNDER PRESSURE

#81
20090250220
2009-10-08

INTERNAL PIPE SLOT TOOL

#82
20090133873
2009-05-28

Method for repair of damaged wells

#83
20090114389
2009-05-07

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

#84
20090078421
2009-03-26

System and method for performing well treatments

#85
20080251263
2008-10-16

Deformed pipe method of extinguishing oil fires

#86
20080196891
2008-08-21

Communication tool and method for a subsurface safety valve with communication component

#87
20070227738
2007-10-04

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

#88
20070062701
2007-03-22

In-situ landfill gas well perforation method and apparatus

#89
20070029080
2007-02-08

Deformable member

#90
20060254773
2006-11-16

Coiled tubing cutter

#91
20060162921
2006-07-27

Slip energized by longitudinal shrinkage

#92
20060113081
2006-06-01

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

#93
20060102358
2006-05-18

Fluid system component with sacrificial element

#94
20050263296
2005-12-01

Deformable member

#95
20050098325
2005-05-12

Control system communication and lock open tool and method for locking open a safety valve and communicating with surface

#96
20050056430
2005-03-17

Subsurface safety valve having a communication tool accessible non annular hydraulic chamber

#97
20050056414
2005-03-17

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

#98
17561405
2023-03-07

Downhole cutting tool positioning assemblies and methods to cut a tubular

#99
15241311
2017-09-05

Shear ram type blowout preventer

#100
15197626
2017-10-03

Blowout preventers made from plastic enhanced with graphene, phosphorescent or other material, with sleeves that fit inside well pipes, and making use of well pressure

#101
14571774
2017-03-14

Shear ram type blowout preventer