Patents-Review.com
ClassID:

135458 ⎘

E21B2033/005 - CPC Classification

Classification description:

Recent Application in this class:
#1
20210293336
2021-09-23

Ball joint seal

 #2
20210115750
2021-04-22

Washout prevention element for expandable metal sealing elements

 #3
20210079842
2021-03-18

Circular seal outer diameter seal effectiveness testing tool

 #4
20210054716
2021-02-25

Plugging formation fractures

 #5
20210032952
2021-02-04

Rotating hanger running tool

 #6
20210017835
2021-01-21

Composite expandable metal elements with reinforcement

 #7
20200392808
2020-12-17

Compact downhole tool

 #8
20200370386
2020-11-26

Rotating hanger system with ratchet mechanism

 #9
20200284119
2020-09-10

Pressurized flotation for tubular installation in wellbores

 #10
20200182009
2020-06-11

Water and gas barrier for hydraulic systems

 #11
20200166136
2020-05-28

Metal-to-metal sealing system with low component spreading requirements

 #12
20200157907
2020-05-21

SMART SEAL METHODS AND SYSTEMS

 #13
20200131880
2020-04-30

DOWNHOLE PACKER TOOL ENGAGING AND OPENING PORT SLEEVE UTILIZING HYDRAULIC FORCE OF FRACTURING FLUID

 #14
20200124186
2020-04-23

Front loaded seat seal

 #15
20200018397
2020-01-16

Rolling annular seal

 #16
20200011152
2020-01-09

Subterranean Valve Testing, Lubricating, and Sealing Device

 #17
20190368323
2019-12-05

Tubing rotator and safety rod clamp assembly

 #18
20190368304
2019-12-05

Element backup

 #19
20190323316
2019-10-24

Expanding and collapsing apparatus and methods of use

 #20
20190309598
2019-10-10

Pressure energized seal actuator ring

 #21
20190309594
2019-10-10

Wellhead seal energized by fluid pressure

 #22
20190284896
2019-09-19

ISOLATION APPARATUS AND ISOLATION METHODS

 #23
20190284895
2019-09-19

Apparatus for connecting a tool string to coiled tubing in downhole operations

 #24
20190264529
2019-08-29

Electroactive polymer-based downhole seal

 #25
20190257171
2019-08-22

Ported U-cup annular wellhead hanger seal

 #26
20190249511
2019-08-15

Multi-layer backup ring including interlock members

 #27
20190234176
2019-08-01

Pressure Control Devices for Sealing Around Tubular Members

 #28
20190234169
2019-08-01

Wellbore seal energizing ring with retaining feature

 #29
20190145213
2019-05-16

POSITIVE ENGAGEMENT INDICATOR FOR REMOTELY OPERATED WELL PRESSURE CONTROL APPARATUS

 #30
20190100976
2019-04-04

Open-hole mechanical packer with external feed through run underneath packing system

 #31
20190071948
2019-03-07

System to control extrusion gaps in an anti-extrusion device

 #32
20180355695
2018-12-13

Crude oil production method and equipment

 #33
20180340417
2018-11-29

System and method for triaxial testing of core samples at high temperatures

 #34
20180265682
2018-09-20

Degradable elastomeric material

 #35
20180245419
2018-08-30

Blowout preventer packing assembly

 #36
20180209241
2018-07-26

Packing element with timed setting sequence

 #37
20180202251
2018-07-19

Single point metal to metal seal

 #38
20180106126
2018-04-19

SEAL SLEEVE AND ASSEMBLY INCLUDING SUCH A SEAL SLEEVE

 #39
20180100370
2018-04-12

Wellbore completion apparatus and methods utilizing expandable inverted seals

 #40
20180094499
2018-04-05

Elastomeric seal for rotating heads

 #41
20180094498
2018-04-05

Undersea hydraulic coupling with multiple pressure-energized metal seals

 #42
20180073326
2018-03-15

Mineral extraction well seal

 #43
20180073323
2018-03-15

Expandable seal

 #44
20180051531
2018-02-22

Architecture and method for fabricating reinforced packer elements

 #45
20180030804
2018-02-01

Internal and external pressure seal assembly

 #46
20180010408
2018-01-11

Isolation flange assembly

 #47
20170343108
2017-11-30

Sealing components and methods of manufacture

 #48
20170335658
2017-11-23

Flapper and seat with a hard and soft seal for a subsurface safety valve

 #49
20170284165
2017-10-05

Wellhead metal seal with energizing ring having trapped fluid reliefs

 #50
20170226809
2017-08-10

Frictional support of seal bore protector

 #51
20170159399
2017-06-08

LOCK RING AND PACKOFF FOR WELLHEAD

 #52
20170159397
2017-06-08

DOWNHOLE DEVICES FOR PROVIDING SEALING COMPONENTS WITHIN A WELLBORE, WELLS THAT INCLUDE SUCH DOWNHOLE DEVICES, AND METHODS OF UTILIZING THE SAME

 #53
20170138148
2017-05-18

Device for lining or obturating a wellbore or a pipe

 #54
20170130575
2017-05-11

Smart seal methods and systems

 #55
20170130562
2017-05-11

Seals with embedded sensors

 #56
20170114605
2017-04-27

Wellhead seal assembly with lockdown and slotted arrangement

 #57
20170108123
2017-04-20

Methods of forming superelastic seals

 #58
20170089155
2017-03-30

Drilling system and method of operating a drilling system

 #59
20160369587
2016-12-22

Downhole expandable metal tubular

 #60
20160356115
2016-12-08

Variable height backup assembly for articulating boots

 #61
20160326824
2016-11-10

Wellhead tiedown system

 #62
20160273299
2016-09-22

Wellbore isolation devices with solid sealing elements

 #63
20160245040
2016-08-25

Metal to metal annulus seal with enhanced lock-down capacity

 #64
20160230490
2016-08-11

Well abandonment system and method

 #65
20160215599
2016-07-28

Diffuser and flow control system with diffuser

 #66
20160177650
2016-06-23

Elastomeric seal for rotating heads

 #67
20160145964
2016-05-26

Degradable casing seal construction for downhole applications

 #68
20160123471
2016-05-05

Superelastic nickel-titanium alloy downhole seals, wellbore tools including such seals, and related methods

 #69
20160069149
2016-03-10

Seal lock down

 #70
20160060990
2016-03-03

Seal delivery system

 #71
20160047198
2016-02-18

Wellbore plug isolation system and method

 #72
20160040498
2016-02-11

Ratcheted E-ring retention device

 #73
20160032681
2016-02-04

High pressure seal with composite anti-extrusion mechanism

 #74
20160032680
2016-02-04

Self-boosting expandable seal with cantilevered seal arm

 #75
20160002995
2016-01-07

Inflatable seal with fabric expansion restriction

 #76
20150369404
2015-12-24

Bi-directional seal assembly

 #77
20150167400
2015-06-18

GASKET FOR INDUCTIVE COUPLING BETWEEN WIRED DRILL PIPE

 #78
20150139832
2015-05-21

Seal assembly for a downhole device

 #79
20150129242
2015-05-14

Sealing annular gaps in a well

 #80
20150122483
2015-05-07

Carbon composites, methods of manufacture, and uses thereof

 #81
20150114666
2015-04-30

Tube arrangement to enhance sealing between tubular members

 #82
20150101831
2015-04-16

Apparatus and methods for sealing around the opening to a cellar formed around a hydrocarbon exploration or production well

 #83
20150053427
2015-02-26

Plunger for gas lift system with novel skirt

 #84
20150034316
2015-02-05

ANNULAR BARRIER HAVING EXPANSION TUBES

 #85
20150027704
2015-01-29

PACKER END RING WITH DEVICE FOR GRIPPING BASE PIPE

 #86
20150021044
2015-01-22

Grooved swellable packer

 #87
20150021030
2015-01-22

Temperature compensated element and uses thereof in isolating a wellbore

 #88
20150000935
2015-01-01

Multi-stage well system and technique

 #89
20140361497
2014-12-11

Swellable energizers for oil and gas wells

 #90
20140345874
2014-11-27

RETRIEVABLE STIMULATION FRAC PLUG WITH BALL AND SEAT

 #91
20140332221
2014-11-13

Subsea well safing system

 #92
20140326462
2014-11-06

Ram device operable with wellbore tubulars

 #93
20140319783
2014-10-30

Expandable high pressure and high temperature seal

 #94
20140318816
2014-10-30

Downhole tools with ball trap

 #95
20140306406
2014-10-16

Seal sleeve and assembly including such a seal sleeve

 #96
20140299797
2014-10-09

Blowout preventer and rams

 #97
20140299333
2014-10-09

APPLYING WELLBORE LINING

 #98
20140284047
2014-09-25

EXPANDABLE PACKER

 #99
20140262251
2014-09-18

Method for inducing and further propagating formation fractures

 #100
20140251630
2014-09-11

Wellhead seal assembly lockdown system

 #101
20140238660
2014-08-28

Downhole seal element and related apparatuses

 #102
20140224497
2014-08-14

Elongated sealing member for downhole tool

 #103
20140209293
2014-07-31

Downhole assembly

 #104
20140183396
2014-07-03

Multi-valve seat seal assembly for a gate valve

 #105
20140183392
2014-07-03

Gate valve arrangement including multi-valve stem and seat assemblies

 #106
20140166919
2014-06-19

Valve

 #107
20140131054
2014-05-15

Slotted metal seal

 #108
20140069646
2014-03-13

Energizing ring divot back-out lock

 #109
20140054861
2014-02-27

Metal encapsulated composite seal

 #110
20130327974
2013-12-12

Curved flapper seal with stepped intermediate surface

 #111
20130284453
2013-10-31

Downhole circulating valve having a seal plug and method for operating same

 #112
20130234401
2013-09-12

Flowline divertor seal with spring-energized sealing lips

 #113
20130207312
2013-08-15

Seal molding sleeve

 #114
20130206427
2013-08-15

Seal assembly and method

 #115
20130186621
2013-07-25

Dirty fluid valve with chevron seal

 #116
20130133876
2013-05-30

Seat assembly for isolating fracture zones in a well

 #117
20130020799
2013-01-24

Bi-directional pressure energized axial seal and a swivel connection application

 #118
20120227988
2012-09-13

Metal annulus seal

 #119
20120193874
2012-08-02

Blowout preventer seal and method of using same

 #120
20120169013
2012-07-05

Metal seal

 #121
20120118585
2012-05-17

Dual metal seal system

 #122
20120112115
2012-05-10

Sealing arrangement for a down hole valve

 #123
20120086227
2012-04-12

3-ring non-extrusion seal assembly and method

 #124
20110315399
2011-12-29

Gasket for inductive coupling between wired drill pipe

 #125
20110227296
2011-09-22

Bi-directional seal assembly

 #126
20100219592
2010-09-02

Sealing array for high temperature applications

 #127
20100206575
2010-08-19

Self-energizing annular seal

 #128
20100181727
2010-07-22

Threaded joint with energizable seal

 #129
20100072707
2010-03-25

Metal encapsulated composite seal

 #130
15839980
2018-05-29

Seal ring and coupling sleeve assembly

 #131
15695893
2019-08-27

Frustum plugs for pipelines

 #132
15656743
2020-01-21

Washpipe seal assembly

 #133
14973407
2020-07-07

External pressure CX gasket