Patents-Review.com
ClassID:

135442 ⎘

E21B31/002 - CPC Classification

Classification description:

Fishing for or freeing objects in boreholes or wells Destroying the objects to be fished, e.g. by explosive means

Recent Application in this class:
#1
20260009303
2026-01-08

FREEING A DOWNHOLE SEAL IN A WELLBORE

 #2
20250270889
2025-08-28

Milling and Collecting Debris in Depleted or Sub-Hydrostatic Wells

 #3
20240229586
2024-07-11

WELLBORE CASING WHILE DRILLING WITH DRILLING JAR

 #4
20240133259
2024-04-25

Wellbore casing while drilling with drilling jar

 #5
20240052718
2024-02-15

Annular cutter catching devices

 #6
20230399922
2023-12-14

Junk crushing device, assembly, and method thereof

 #7
20230193713
2023-06-22

Fluid activated disintegrating metal system

 #8
20230113169
2023-04-13

Method for washing over an anchoring subassembly

 #9
20230091920
2023-03-23

Adjustable mill

 #10
20230091081
2023-03-23

Drilling assembly for removal of an obstacle in a conduit

 #11
20210310326
2021-10-07

Drill pipe with dissolvable layer

 #12
20210262306
2021-08-26

Expended laser tool

 #13
20210101849
2021-04-08

Fluid activated disintegrating metal system

 #14
20200157904
2020-05-21

AUTOMATIC DRILLER

 #15
20200102801
2020-04-02

Milling apparatus with stabilization feature

 #16
20200040685
2020-02-06

Method and apparatus for clearing a well bore

 #17
20190024469
2019-01-24

FLEXIBLE DISPLAY APPARATUS AND AN ENCAPSULATION METHOD THEREOF

 #18
20180362415
2018-12-20

Fluid activated disintegrating metal system

 #19
20180328133
2018-11-15

Downhole disconnect tool

 #20
20180283142
2018-10-04

Downhole tools having controlled degradation and method

 #21
20180283141
2018-10-04

Downhole tools having controlled degradation and method

 #22
20180171741
2018-06-21

Wellbore plug isolation system and method

 #23
20180118997
2018-05-03

Methods of forming a degradable component

 #24
20180087343
2018-03-29

Wellbore plug isolation system and method

 #25
20170167216
2017-06-15

Apparatus and methods for overcoming an obstruction in a wellbore

 #26
20170096883
2017-04-06

Oilfield perforator designed for high volume casing removal

 #27
20170016297
2017-01-19

Downhole severing tools employing a two-stage energizing material and methods for use thereof

 #28
20160369597
2016-12-22

Centralizing and protective adapter for downhole torch and method of use

 #29
20160245033
2016-08-25

TOOL AND METHOD OF OPERATION FOR REMOVING DEBRIS AND/OR A LODGED TOOL FROM A WELLBORE

 #30
20160115368
2016-04-28

Methods of using a degradable component in a wellbore and related systems and methods of forming such components

 #31
20160053566
2016-02-25

Method and apparatus for clearing a well bore

 #32
20160047196
2016-02-18

Wellbore plug isolation system and method

 #33
20150090459
2015-04-02

Apparatus and Methods for Clearing a Subsea Tubular

 #34
20150041137
2015-02-12

Automatic driller

 #35
20150041124
2015-02-12

AUTOMATIC PACKER

 #36
20140360724
2014-12-11

Wireline hydraulic driven mill bottom hole assemblies and methods of using same

 #37
20140116705
2014-05-01

One trip packer plug debris milling and removal method

 #38
20130146302
2013-06-13

Controlled electrolytic degredation of downhole tools

 #39
20120199351
2012-08-09

Method for removing a consumable downhole tool

 #40
20120199340
2012-08-09

Consumable downhole tool

 #41
20120055666
2012-03-08

Consumable downhole tools

 #42
20120048572
2012-03-01

Method for removing a consumable downhole tool

 #43
20110303407
2011-12-15

Consumable downhole tools

 #44
20100326731
2010-12-30

STABILIZING DOWNHOLE TOOL

 #45
20100314127
2010-12-16

Consumable downhole tools

 #46
20100108328
2010-05-06

Method for Removing a Consumable Downhole Tool

 #47
20100108327
2010-05-06

Consumable Downhole Tools

 #48
20100089566
2010-04-15

Consumable downhole tools

 #49
20090321085
2009-12-31

PUMP OFF JUNK MILL

 #50
20080257549
2008-10-23

Consumable Downhole Tools

 #51
20070284114
2007-12-13

METHOD FOR REMOVING A CONSUMABLE DOWNHOLE TOOL

 #52
20070284097
2007-12-13

CONSUMABLE DOWNHOLE TOOLS

 #53
20060243445
2006-11-02

One-trip cut-to-release apparatus and method

 #54
20050211429
2005-09-29

Cutting tool for use in a wellbore tubular

 #55
18763640
2026-01-06

Freeing a downhole seal in a wellbore

 #56
17328755
2022-12-20

Non-electric explosive device and method of severing a tubular