Patents-Review.com
ClassID:

135472 ⎘

E21B33/047 - CPC Classification

Classification description:

Sealing or packing boreholes or wells; Surface sealing or packing; Well heads; Setting-up thereof; Casing heads; Suspending casings or tubings in well heads for plural tubing strings

Recent Application in this class:
#1
20240368961
2024-11-07

PROTECTING THE CASING-CASING ANNULUS IN HYDROCARBON PRODUCING WELLBORES

 #2
20240209713
2024-06-27

Split hanger tubing hanger

 #3
20240093564
2024-03-21

Tubing hanger retention systems for wellhead assemblies

 #4
20230399915
2023-12-14

Spool-type pitless adapter for groundwater heat exchanger

 #5
20230212922
2023-07-06

WELLHEAD ATTACHMENT SYSTEM

 #6
20220316289
2022-10-06

Downhole mechanical actuator

 #7
20220282589
2022-09-08

Dual string hanger assembly

 #8
20220251919
2022-08-11

Dual tubing string adaptor

 #9
20220120149
2022-04-21

Annular pressure cap drilling method

 #10
20220018203
2022-01-20

Tubing hanger with shiftable annulus seal

 #11
20210254412
2021-08-19

Workflow process for connecting multiple coiled tubing strings

 #12
20210172273
2021-06-10

Annular pressure cap drilling method

 #13
20200386358
2020-12-10

FLUID-BEARING PIPE FITTINGS ENHANCING FLUID DELIVERY SYSTEM PERFORMANCE

 #14
20200232289
2020-07-23

System and methodology utilizing conductor sharing offset shoe

 #15
20200217165
2020-07-09

Hanger orientation system

 #16
20190390528
2019-12-26

Containment systems for sealing a pass-through in a well, and methods therefore

 #17
20190063174
2019-02-28

Hydraulic fluid distribution assembly

 #18
20180347303
2018-12-06

Side door hanger system for sealing a pass-through in a wellhead, and method therefore

 #19
20180320507
2018-11-08

Wireless downhole feedthrough system

 #20
20180274326
2018-09-27

Polymers for Wellbore Plugs and Wellbore Stability

 #21
20170370153
2017-12-28

PISTON ASSEMBLY TO REDUCE ANNULAR PRESSURE BUILDUP

 #22
20170211354
2017-07-27

Connection system for subsea flow interface equipment

 #23
20170152721
2017-06-01

Hanger running system and method

 #24
20170138146
2017-05-18

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #25
20170002624
2017-01-05

Method and apparatus for managing annular fluid expansion and pressure within a wellbore

 #26
20160305225
2016-10-20

Lining of well bores with expandable and conventional liners

 #27
20160160613
2016-06-09

Connection system for subsea flow interface equipment

 #28
20160160605
2016-06-09

Configurable subsea tree master valve block

 #29
20160153259
2016-06-02

Control line termination assembly

 #30
20160069178
2016-03-10

Wireless downhole feedthrough system

 #31
20160024878
2016-01-28

System and method for accessing a well

 #32
20150376971
2015-12-31

Independent guide string hanger

 #33
20150159458
2015-06-11

Orientation adapter for use with a tubing hanger

 #34
20150139832
2015-05-21

Seal assembly for a downhole device

 #35
20150083435
2015-03-26

Wellhead downhole line communication arrangement

 #36
20150075771
2015-03-19

Multi-component tubular coupling for wellhead systems

 #37
20140332226
2014-11-13

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #38
20140332222
2014-11-13

Connection system for subsea flow interface equipment

 #39
20140326469
2014-11-06

Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool

 #40
20140151069
2014-06-05

Tension tubing hanger and method of applying tension to production tubing

 #41
20140020888
2014-01-23

Independent guide string hanger

 #42
20130284456
2013-10-31

Wellhead control line deployment

 #43
20130240215
2013-09-19

Downhole multiple well

 #44
20130233557
2013-09-12

Bottomhole assembly for capillary injection system and method

 #45
20130140775
2013-06-06

Seal With Bellows Type Nose Ring

 #46
20130062056
2013-03-14

Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same

 #47
20130025879
2013-01-31

High pressure seal adapter for splitter conductor housing to wellhead connection

 #48
20120273214
2012-11-01

Connection system for subsea flow interface equipment

 #49
20120267094
2012-10-25

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #50
20120175103
2012-07-12

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #51
20120160507
2012-06-28

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #52
20120152561
2012-06-21

Emergency subsea wellhead closure devices

 #53
20120056413
2012-03-08

Multi-component tubular coupling for wellhead systems

 #54
20120048534
2012-03-01

Independent guide string hanger

 #55
20120012302
2012-01-19

Compact surface wellhead system and method

 #56
20110290507
2011-12-01

Communication Method and Apparatus for Insert Completions

 #57
20110290500
2011-12-01

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #58
20110278021
2011-11-17

Wellhead control line deployment

 #59
20110272163
2011-11-10

Wellhead downhole line communication arrangement

 #60
20110266005
2011-11-03

CONTINUOUS ROD PUMP DRIVE SYSTEM

 #61
20110253380
2011-10-20

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #62
20110247828
2011-10-13

Fluid displacement methods and apparatus for hydrocarbons in subsea production tubing

 #63
20110226487
2011-09-22

Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool

 #64
20110226483
2011-09-22

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #65
20110214884
2011-09-08

Lining of well bores with expandable and conventional liners

 #66
20110198074
2011-08-18

Hybrid wellhead system and method of use

 #67
20110147001
2011-06-23

Wellhead annulus monitoring

 #68
20110067859
2011-03-24

Method and apparatus for determining locations of multiple casings within a wellbore conductor

 #69
20100218939
2010-09-02

Hybrid wellhead system and method of use

 #70
20100206576
2010-08-19

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #71
20100206547
2010-08-19

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #72
20100206546
2010-08-19

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #73
20100101800
2010-04-29

Subsea completion with a wellhead annulus access adapter

 #74
20100078176
2010-04-01

Combined tree stab and control interface

 #75
20090301728
2009-12-10

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #76
20090301727
2009-12-10

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #77
20090294132
2009-12-03

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #78
20090294125
2009-12-03

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #79
20090288832
2009-11-26

Varying access points for tubing and casing monitoring and casing annulus remediation systems

 #80
20090272523
2009-11-05

Methane Gas Wellhead

 #81
20090114397
2009-05-07

Hybrid wellhead system and method of use

 #82
20090044956
2009-02-19

Tubing hanger and method of compensating pressure differential between a tubing hanger and an external well volume

 #83
20090025936
2009-01-29

Connection system for subsea flow interface equipment

 #84
20080156480
2008-07-03

APPARATUS FOR EXPANDING A TUBULAR MEMBER

 #85
20080115939
2008-05-22

Radial Expansion of Tubular Members

 #86
20080087418
2008-04-17

Pipeline

 #87
20080087415
2008-04-17

Hybrid wellhead system and method of use

 #88
20080017368
2008-01-24

Well operations systems

 #89
20070289748
2007-12-20

System and method for low-pressure well completion

 #90
20070158077
2007-07-12

System and method for low-pressure well completion

 #91
20070107910
2007-05-17

Hybrid wellhead system and method of use

 #92
20070102162
2007-05-10

Apparatus for retaining two strings of tubulars

 #93
20070029079
2007-02-08

Subsea tubing hanger assembly for an oil or gas well

 #94
20060272823
2006-12-07

Well operations system

 #95
20060272822
2006-12-07

Well operations system

 #96
20060237194
2006-10-26

Apparatus and method for recovering fluids from a well and/or injecting fluids into a well

 #97
20060201679
2006-09-14

Support member for subsea jumper installation, and methods of using same

 #98
20060118308
2006-06-08

Dual bore well jumper

 #99
20060108120
2006-05-25

Well production and multi-purpose intervention access hub

 #100
20050284640
2005-12-29

Nested velocity string tubing hanger

 #101
20050230104
2005-10-20

Apparatus for expanding a tubular member

 #102
20050230103
2005-10-20

Apparatus for expanding a tubular member

 #103
20050230102
2005-10-20

Apparatus for expanding a tubular member

 #104
20050224225
2005-10-13

Apparatus for expanding a tubular member

 #105
20050211442
2005-09-29

System and method for low-pressure well completion

 #106
20050205253
2005-09-22

Apparatus for expanding a tubular member

 #107
20050194188
2005-09-08

Method of drilling and completing multiple wellbores inside a single caisson

 #108
20050173122
2005-08-11

Well operations system

 #109
20050155774
2005-07-21

Well operations system

 #110
20050126788
2005-06-16

Subsea wellhead assembly

 #111
20050081358
2005-04-21

Radial expansion of tubular members

 #112
20050077051
2005-04-14

Radial expansion of tubular members

 #113
20050045341
2005-03-03

Radial expansion of tubular members

 #114
20050045324
2005-03-03

Radial expansion of tubular members

 #115
20050039928
2005-02-24

Radial expansion of tubular members

 #116
20050028988
2005-02-10

Radial expansion of tubular members

 #117
20050028984
2005-02-10

Recovery of production fluids from an oil or gas well

 #118
20050011641
2005-01-20

Wellhead

 #119
20050006103
2005-01-13

Adapters for double-locking casing mandrel and method of using same