ClassID:

135493

E21B33/1243 - CPC Classification

Classification description:

Sealing or packing boreholes or wells in the borehole; Packers; Plugs; Units with longitudinally-spaced plugs for isolating the intermediate space with inflatable sleeves

Sub-classes:
Recent Application in this class:
#1
20250382853
2025-12-18

Shear Resistant Swellable Packers

#2
20250369306
2025-12-04

SYSTEMS AND METHODS FOR SURFACE SUPERVISION OF A DOWNHOLE TOOL

#3
20250237117
2025-07-24

SYSTEM AND METHOD FOR ISOLATION AND CHEMICAL INJECTION IN A COMPLETION STRING OF OIL WELLS WITH OPEN INTERVALS

#4
20250215764
2025-07-03

EXPANDABLE ELEMENT ASSEMBLY WITH EXTERNAL RIGID SUPPORT ELEMENT TO ISOLATE WELL INTERVAL

#5
20250051628
2025-02-13

HTHP CORROSION RESISTANT COMPOSITE SEAL VIA RECRYSTALLIZATION OF REACTIVE COMPOSITE: FORMULATION AND DEPLOYMENT

#6
20250043653
2025-02-06

SEALING ASSEMBLY EMPLOYING A DEPLOYABLE CONTROL BAND

#7
20250043652
2025-02-06

A SEALING ASSEMBLY EMPLOYING A DEPLOYABLE SPACER

#8
20240318523
2024-09-26

WELL TOOL DEVICE FOR INJECTING A FLUID THROUGH A HOLE IN A WELL BORE

#9
20240309717
2024-09-19

SYSTEM AND METHOD FOR ELECTRONICALLY CONTROLLING DOWNHOLE VALVE SYSTEM

#10
20240141783
2024-05-02

Tracer diffusion device, system for tracing development of water conducting fracture zone and relataed method

#11
20240110458
2024-04-04

High expandable straddle

#12
20240068321
2024-02-29

Extreme Temperature Retrievable Isolation Packer System

#13
20230407745
2023-12-21

Air Developed Packer Testing System

#14
20230383649
2023-11-30

Downhole acoustic wave generation systems and methods

#15
20230313625
2023-10-05

System and method for electronically controlling downhole valve system

#16
20230220743
2023-07-13

Downhole expandable metal tubular

#17
20230167722
2023-06-01

Downhole perforating tool systems and methods

#18
20230091554
2023-03-23

Inflatable element system for downhole tools

#19
20230003098
2023-01-05

ANNULAR BARRIER

#20
20230003097
2023-01-05

ANNULAR BARRIER

#21
20220389788
2022-12-08

System and methodology to combine sand control and zonal isolation for artificial lift systems

#22
20220364432
2022-11-17

Reactive metal for cement assurance

#23
20220333466
2022-10-20

Procedures for selective water shut off of passive ICD compartments

#24
20220333456
2022-10-20

Annular barrier and downhole system

#25
20220196629
2022-06-23

Pressure meter testing apparatus and method

#26
20220195832
2022-06-23

Downhole completion system

#27
20220106853
2022-04-07

Plug and abandonment system

#28
20210172304
2021-06-10

Fracturing device for extraction of coalbed methane in low permeability reservoir

#29
20210156220
2021-05-27

Delay coating for wellbore isolation device

#30
20210079755
2021-03-18

Mechanical flow assembly

#31
20210071495
2021-03-11

Annular barrier system

#32
20210040812
2021-02-11

Pipe coupling devices for oil and gas applications

#33
20200248530
2020-08-06

Annular barrier with a valve system

#34
20200240232
2020-07-30

INTERMETALLIC METALLIC COMPOSITE, METHOD OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

#35
20200200004
2020-06-25

Measurement-while-drilling method and device for assessing outburst risk of coal seam

#36
20200199956
2020-06-25

Ball activated treatment and production system including injection system

#37
20200131881
2020-04-30

Annular barrier

#38
20200040693
2020-02-06

Annular barrier system

#39
20190330957
2019-10-31

Well system with attached sealant line

#40
20190316437
2019-10-17

Downhole straddle system

#41
20190284898
2019-09-19

Tandem releasable bridge plug system and method for setting such tandem releasable plugs

#42
20190277107
2019-09-12

OFFSHORE METHOD

#43
20190234176
2019-08-01

Pressure Control Devices for Sealing Around Tubular Members

#44
20190211646
2019-07-11

SLIP RING SEGMENT FOR DOWNHOLE TOOL

#45
20190106968
2019-04-11

Methods and systems for utilizing an inner diameter of a tool for jet cutting, hydraulically setting packer and shutting off circulation tool simultaneously

#46
20190055800
2019-02-21

Ball activated treatment and production system including injection system

#47
20180355691
2018-12-13

Downhole patching setting tool

#48
20180274324
2018-09-27

Systems and methods for retraction assembly

#49
20180187526
2018-07-05

Method and system for sealing a segmented expandable cone

#50
20180128075
2018-05-10

Annular barrier with expansion unit

#51
20180119542
2018-05-03

Apparatus, system and method for multi zone monitoring in boreholes

#52
20180094510
2018-04-05

Methods and systems for utilizing an inner diameter of a tool for jet cutting, hydraulically setting packers and shutting off circulation tool simultaneously

#53
20180087344
2018-03-29

MULTI-SECTIONAL SWELLABLE PACKER

#54
20180010414
2018-01-11

Annular barrier with shunt tube

#55
20170370179
2017-12-28

Downhole drilling system

#56
20170350219
2017-12-07

Screen assembly for a resource exploration system

#57
20170266923
2017-09-21

Intermetallic metallic composite, method of manufacture thereof and articles comprising the same

#58
20170159405
2017-06-08

Downhole well system

#59
20170145801
2017-05-25

Downhole stimulation system

#60
20170145779
2017-05-25

Downhole completion system

#61
20170122066
2017-05-04

Downhole flow control device

#62
20170096879
2017-04-06

Downhole flow device

#63
20170081940
2017-03-23

WELLBORE PACKER, METHOD AND TUBING STRING

#64
20160194931
2016-07-07

Filling mechanism for a morphable sleeve

#65
20160053540
2016-02-25

Drilling apparatus

#66
20160024899
2016-01-28

Method and apparatus for zonal isolation and selective treatments of subterranean formations

#67
20160003000
2016-01-07

Isolation barrier

#68
20150361746
2015-12-17

Two phase mud flow usage with dual-string drilling system

#69
20150285023
2015-10-08

SYSTEM, METHOD, AND APPARATUS FOR MULTI-STAGE COMPLETION

#70
20150275631
2015-10-01

METHOD AND DEVICE FOR LINING A WELL USING HYDROFORMING

#71
20150252659
2015-09-10

HYDRAULIC FRACTURING PROCESS AND CORRESPONDING EQUIPMENT

#72
20150233215
2015-08-20

Wellbore apparatus and method for sand control using gravel reserve

#73
20150176406
2015-06-25

Perforating packer sampling apparatus and methods

#74
20150176392
2015-06-25

Perforating packer casing evaluation methods

#75
20150176384
2015-06-25

One trip multi-interval plugging, perforating and fracking method

#76
20150176376
2015-06-25

Packer tool including multiple ports

#77
20150176364
2015-06-25

Downhole isolation methods and apparatus therefor

#78
20150167426
2015-06-18

Flow control device and flow control method

#79
20150068738
2015-03-12

Apparatus, system and method for multi zone monitoring in boreholes

#80
20150027724
2015-01-29

Electronically-actuated, multi-set straddle borehole treatment apparatus

#81
20150021041
2015-01-22

Setting assembly and method thereof

#82
20140374120
2014-12-25

Downhole valve for fluid energized packers

#83
20140374119
2014-12-25

Hydraulic anchor for downhole packer

#84
20140332232
2014-11-13

Annular barrier with an expansion detection device

#85
20140318770
2014-10-30

Pressure integrity testing system

#86
20140311759
2014-10-23

Annular barrier system with flow lines

#87
20140216755
2014-08-07

Annular barrier with pressure amplification

#88
20140166275
2014-06-19

System and method for determining mechanical properties of a formation

#89
20140008061
2014-01-09

Packer assembly with sealing bodies

#90
20130319540
2013-12-05

Devices and methods for the checking and for the checking and repairing of pipe connections

#91
20130248187
2013-09-26

Inflatable collar and downhole method for moving a coiled tubing string

#92
20130161000
2013-06-27

Downhole isolation methods and apparatus therefor

#93
20130140872
2013-06-06

Tool and method for initiating hydraulic fracturing

#94
20130118751
2013-05-16

Formation fracturing

#95
20130068463
2013-03-21

Fluid sample cleanup

#96
20130062073
2013-03-14

Packer Assembly with a Standoff

#97
20130062059
2013-03-14

Focused sampling of formation fluids

#98
20130022832
2013-01-24

Intermetallic metallic composite, method of manufacture thereof and articles comprising the same

#99
20130008513
2013-01-10

Flow control device and flow control method

#100
20120279702
2012-11-08

Formation testing

#101
20120211232
2012-08-23

Subsea conductor anchor

#102
20120160524
2012-06-28

COMPLETION ASSEMBLY AND A METHOD FOR STIMULATING, SEGMENTING AND CONTROLLING ERD WELLS

#103
20120125641
2012-05-24

Modular hydraulic packer-and-port system

#104
20120043134
2012-02-23

METHOD AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS

#105
20120024523
2012-02-02

Tool and method for determining formation parameter

#106
20120012343
2012-01-19

Downhole Packer Having Swellable Sleeve

#107
20120012342
2012-01-19

Downhole Packer Having Tandem Packer Elements for Isolating Frac Zones

#108
20110162851
2011-07-07

Tool for shutting off openings or leaks in a well bore

#109
20110079439
2011-04-07

METHOD AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS

#110
20110056700
2011-03-10

SYSTEM AND METHOD FOR RECOMPLETION OF OLD WELLS

#111
20100319928
2010-12-23

THROUGH TUBING INTELLIGENT COMPLETION AND METHOD

#112
20100319912
2010-12-23

Focused sampling of formation fluids

#113
20100307774
2010-12-09

DEVICE AND METHOD FOR ISOLATING A SECTION OF A WELLBORE

#114
20100242586
2010-09-30

In-situ fluid compatibility testing using a wireline formation tester

#115
20100126713
2010-05-27

Fluid collecting apparatus

#116
20100122822
2010-05-20

Single packer structure for use in a wellbore

#117
20090308604
2009-12-17

Single packer system for collecting fluid in a wellbore

#118
20090255669
2009-10-15

Tool and method for determining formation parameter

#119
20090194338
2009-08-06

METHOD AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS

#120
20090188569
2009-07-30

Method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose

#121
20090183882
2009-07-23

Packer variable volume excluder and sampling method therefor

#122
20090159275
2009-06-25

System and method for optimizing production in a well

#123
20090120633
2009-05-14

Method for Stimulating a Well Using Fluid Pressure Waves

#124
20080135240
2008-06-12

Inflatable packer assembly

#125
20080053652
2008-03-06

Drillstring packer assembly

#126
20080041631
2008-02-21

METHOD AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS

#127
20060248949
2006-11-09

Multi-purpose downhole tool

#128
20060090905
2006-05-04

Inflatable packer assembly

#129
20050150661
2005-07-14

Inflate control system for inflatable straddle stimulation tool

#130
20050061508
2005-03-24

System and method of production enhancement and completion of a well

#131
20050011678
2005-01-20

Method and device for injecting a fluid into a formation

#132
20050000693
2005-01-06

Release tool for coiled tubing

#133
18746256
2025-12-16

Shear resistant swellable packers

#134
18679530
2025-12-02

Systems and methods for surface supervision of a downhole tool

#135
18455702
2025-05-20

Well system with attached sealant line

#136
17822728
2023-12-26

Resettable packer system for pumping operations

#137
17408904
2023-09-26

Well system with attached sealant line

#138
17185356
2025-05-06

Dual-packer injection leaching system and method