ClassID:

135314

E21B17/1007 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Wear protectors; Centralising devices, e.g. stabilisers for the internal surface of a pipe, e.g. wear bushings for underwater well-heads

Recent Application in this class:
#1
20260028885
2026-01-29

SONDE CENTRALIZATION INSIDE A COLLAR

#2
20250243727
2025-07-31

ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD

#3
20250179880
2025-06-05

ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHOD

#4
20250101814
2025-03-27

Pipe Connector

#5
20250067130
2025-02-27

COMPRESSIBLE SLEEVES, MAGNETIC ASSEMBLIES, AND METHODS TO RESTRAIN A COMPONENT OF A DOWNHOLE TOOL

#6
20240044221
2024-02-08

Rotating and reciprocating swivel apparatus and method

#7
20230417111
2023-12-28

Biased lug cartridge, wear bushing with biased lug cartridge, and system and method using the same

#8
20230366275
2023-11-16

Rotating and reciprocating swivel apparatus and method

#9
20230272681
2023-08-31

REMOVING WELLBORE COMPLETION COMPONENTS IN A WELLBORE

#10
20230087579
2023-03-23

Non-rotating drill pipe protector tool having multiple types of hydraulic bearings

#11
20220412171
2022-12-29

Lineable tubular

#12
20220341278
2022-10-27

Rotating and reciprocating swivel apparatus and method

#13
20220235637
2022-07-28

Pipe connector

#14
20220195811
2022-06-23

Rotating and reciprocating swivel apparatus and method

#15
20220136368
2022-05-05

Indexing tool system for a resource exploration and recovery system

#16
20220136341
2022-05-05

COATING COMPOSITIONS FOR EROSION MITIGATION, AND COATED COMPONENTS AND METHODS USING SAID COATINGS

#17
20220010623
2022-01-13

Multilayer solid lubricant architecture for use in drilling tool applications

#18
20210381368
2021-12-09

ALD-thin layer coating applications for sensing telemetry through evanescent wave interactions

#19
20210324687
2021-10-21

Wellhead connector soft landing system and method

#20
20210238974
2021-08-05

Downhole acid injection to stimulate formation production

#21
20210189807
2021-06-24

Methods of conducting coiled tubing operations

#22
20210041271
2021-02-11

Light pipe for logging-while-drilling communications

#23
20200378195
2020-12-03

Wear Resistant Insert

#24
20200340336
2020-10-29

Polished rod liner assembly

#25
20200318460
2020-10-08

Wear bushing deployment and retrieval tool for subsea wellhead

#26
20200300046
2020-09-24

Rotating and reciprocating swivel apparatus and method

#27
20200263515
2020-08-20

Rotating and reciprocating swivel apparatus and method

#28
20200217182
2020-07-09

Method and system for servicing a well

#29
20200131869
2020-04-30

Multi-piece rod guide for wells

#30
20200115973
2020-04-16

Deck bushing system for drilling machines

#31
20200063503
2020-02-27

Polycrystalline diamond tubular protection

#32
20200011472
2020-01-09

OILFIELD TUBING AND METHODS FOR MAKING OILFIELD TUBING

#33
20190344524
2019-11-14

Tubular protector assembly

#34
20190316430
2019-10-17

MULTI-PIECE ROD GUIDE FOR WELLS

#35
20190242217
2019-08-08

Wear bushing deployment and retrieval tool for subsea wellhead

#36
20190203361
2019-07-04

Corrosion inhibitor, well, pipeline, and method for forming anticorrosion film

#37
20190040695
2019-02-07

Sacrificial protector sleeve

#38
20190032438
2019-01-31

Rotating and reciprocating swivel apparatus and method

#39
20180313170
2018-11-01

Rotating and reciprocating swivel apparatus and method

#40
20180238121
2018-08-23

Dual bit run bushing system and method

#41
20180202282
2018-07-19

Methods and apparatus for downhole probes

#42
20180044999
2018-02-15

DEVICE AND METHOD FOR SECURING CONDUIT INTERIOR WEAR SLEEVE

#43
20180002993
2018-01-04

Wear bushing retrieving system and method

#44
20170298711
2017-10-19

FLOW DISTRIBUTION ASSEMBLIES WITH SHUNT TUBES AND EROSION-RESISTANT SHUNT NOZZLES

#45
20170254168
2017-09-07

Rotating and reciprocating swivel apparatus and method

#46
20170218741
2017-08-03

Burst plug assembly with choke insert, fracturing tool and method of fracturing with same

#47
20170022768
2017-01-26

Method and system for servicing a well

#48
20160348450
2016-12-01

Rotating and reciprocating swivel apparatus and method

#49
20160340984
2016-11-24

Wear sleeve, and method of use, for a tubing hanger in a production wellhead assembly

#50
20160298400
2016-10-13

Pipe connector

#51
20160230474
2016-08-11

Riser isolation tool for deepwater wells

#52
20160168915
2016-06-16

System for non-destructive penetration of a substrate

#53
20160153249
2016-06-02

Systems and Methods for Reducing Pipeline Erosion Using Acoustic Radiation

#54
20160047183
2016-02-18

Variable guide and protection bushing for well conveyance

#55
20160032678
2016-02-04

Rotating and reciprocating swivel apparatus and method

#56
20150322734
2015-11-12

Orienting hanger assembly for deploying MWD tools

#57
20150315900
2015-11-05

Methods and apparatus for downhole probes

#58
20150267479
2015-09-24

Wear bushing with hanger lockdown

#59
20150252628
2015-09-10

Wellbore strings containing expansion tools

#60
20150184468
2015-07-02

TRACTOR FOR INSTALLING TUBING ENCAPSULATED CABLE INTO COIL TUBING

#61
20140216593
2014-08-07

Tubular component with an internal wear-resistant surface

#62
20140174754
2014-06-26

Annular blowout preventer and lower marine riser package connector unit

#63
20140174722
2014-06-26

Extended reach well system

#64
20140116725
2014-05-01

Tubular Member Coupling and Lining Systems and Methods

#65
20140090854
2014-04-03

Rotating and reciprocating swivel apparatus and method

#66
20140034328
2014-02-06

Bore protector

#67
20130333899
2013-12-19

Disintegrable centralizer

#68
20130213661
2013-08-22

Wear bushing for locking to a wellhead

#69
20130175044
2013-07-11

Retrievable subsea device and method

#70
20130017347
2013-01-17

SCALE INHIBITING SURFACE TEXTURE

#71
20120279719
2012-11-08

Internal drilling riser centralizer

#72
20120261132
2012-10-18

Lead impression wear bushing

#73
20120175131
2012-07-12

ID centralizer

#74
20120175126
2012-07-12

Subsea safety system having a protective frangible liner and method of operating same

#75
20120111573
2012-05-10

Gasket test protector sleeve for subsea mineral extraction equipment

#76
20110290476
2011-12-01

Well assembly coupling

#77
20110278020
2011-11-17

Shearing tool and methods of use

#78
20110272139
2011-11-10

SYSTEM FOR DRILLING A WELLBORE

#79
20110198074
2011-08-18

Hybrid wellhead system and method of use

#80
20110148103
2011-06-23

Device for protecting a female end of a threaded tubular connection component, having an anti-unscrewing brake

#81
20110114330
2011-05-19

Combination well pipe centralizer and overpull indicator

#82
20110114328
2011-05-19

Downhole swivel apparatus and method

#83
20110108275
2011-05-12

Wellhead isolation protection sleeve

#84
20110011482
2011-01-20

Well tubings with polymer liners

#85
20110005769
2011-01-13

Rotating and reciprocating swivel apparatus and method

#86
20110000665
2011-01-06

Hydraulically locking stabilizer

#87
20100307748
2010-12-09

Control line patch

#88
20100243271
2010-09-30

Bit-run nominal seat protector and method of operating same

#89
20100218939
2010-09-02

Hybrid wellhead system and method of use

#90
20100206581
2010-08-19

Shearing tool and methods of use

#91
20100006301
2010-01-14

Open water recoverable drilling protector

#92
20090314492
2009-12-24

Protection sleeve

#93
20090114397
2009-05-07

Hybrid wellhead system and method of use

#94
20090008099
2009-01-08

Centralization and running tool and method

#95
20080314585
2008-12-25

System and method for making drilling parameter and or formation evaluation measurements during casing drilling

#96
20080257541
2008-10-23

Wellhead isolation tool including an abrasive cleaning ring

#97
20080185148
2008-08-07

Whipstock assembly for forming a window within a wellbore casing

#98
20080115972
2008-05-22

Method and apparatus for centralizing through tubing milling assemblies

#99
20080087415
2008-04-17

Hybrid wellhead system and method of use

#100
20080017383
2008-01-24

Collapse arrestor tool

#101
20070256864
2007-11-08

Downhole swivel apparatus and method

#102
20070235224
2007-10-11

Drill pipe with vibration dampening liner

#103
20070181296
2007-08-09

Self-expandable cylinder in a downhole tool

#104
20070119283
2007-05-31

Overdrilling apparatus

#105
20070107910
2007-05-17

Hybrid wellhead system and method of use

#106
20070007011
2007-01-11

Locating recess in a shoe for expandable liner system

#107
20060124308
2006-06-15

Downhole oilfield tubulars

#108
20060032672
2006-02-16

Lateral downhole drilling tool

#109
20060027359
2006-02-09

Whipstock assembly and method of manufacture

#110
20050161214
2005-07-28

Rotationally locked wear sleeve for through-tubing drilling and completion

#111
20050145384
2005-07-07

Rotating blast liner

#112
20050103503
2005-05-19

Selectively retrievable wear bushing for subsea or surface applications

#113
20050092527
2005-05-05

Vibration damper systems for drilling with casing

#114
20050082092
2005-04-21

Apparatus in a drill string

#115
20050039912
2005-02-24

Conformable apparatus in a drill string

#116
16991889
2021-10-26

Split bowl wear bushing

#117
16400596
2020-09-29

Web protectors for use in a downhole tool

#118
16136546
2021-10-26

Multilayer solid lubricant architecture for use in drilling tool applications

#119
15495012
2017-12-26

Production risers having rigid inserts and systems and methods for using

#120
14549834
2015-12-22

Subsea riser support and method for bridging escarpments