ClassID:

135492

E21B33/124 - page 2 - 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

Recent Application in this class:
#301
20150330211
2015-11-19

System for measuring downhole parameters and a method of using same

#302
20150330196
2015-11-19

SYSTEMS AND METHODS FOR INJECTING FLUIDS INTO A SUBTERRANEAN FORMATION

#303
20150330188
2015-11-19

Remotely controllable valve for well completion operations

#304
20150330158
2015-11-19

APPARATUSES, SYSTEMS, AND METHODS FOR INJECTING FLUIDS INTO A SUBTERRANEAN FORMATION

#305
20150315890
2015-11-05

Sytems and methods for re-completing multi-zone wells

#306
20150315872
2015-11-05

Wellbore flow-control assemblies for hydrocarbon wells, and systems and methods including the same

#307
20150308220
2015-10-29

Sealing device and method for sealing fractures or leaks in wall or formation surrounding tube-shaped channel

#308
20150308217
2015-10-29

Downhole tool with one-piece slip

#309
20150300131
2015-10-22

Self-degradable hydraulic diversion systems and methods for making and using same

#310
20150300121
2015-10-22

Degradable plug with friction ring anchors

#311
20150292296
2015-10-15

Packer assembly having sequentially operated hydrostatic pistons for interventionless setting

#312
20150292294
2015-10-15

Apparatus and method for isolating fluid flow in an open hole completion

#313
20150292293
2015-10-15

Fluid plugs as downhole sealing devices and systems and methods including the same

#314
20150267521
2015-09-24

Formation treatment evaluation

#315
20150267519
2015-09-24

Artificial lift system

#316
20150267518
2015-09-24

Isolation packer with automatically closing alternate path passages

#317
20150267506
2015-09-24

WELLBORE TOOL WITH INDEXING MECHANISM AND METHOD

#318
20150267502
2015-09-24

Downhole tool and method of use

#319
20150260038
2015-09-17

Well completion sliding sleeve valve based sampling system and method

#320
20150260007
2015-09-17

Downhole tool and method of use

#321
20150252669
2015-09-10

METHOD AND APPARATUS FOR RESERVOIR TESTING AND MONITORING

#322
20150252645
2015-09-10

Multizone retrieval system and method

#323
20150247380
2015-09-03

WELLBORE TOOL WITH INDEXING MECHANISM AND METHOD

#324
20150240613
2015-08-27

Method of fracturing multiple zones within a well using propellant pre-fracturing

#325
20150240587
2015-08-27

Method of opening an orifice in a downhole article, method for making the same and article made thereby

#326
20150240584
2015-08-27

Removable downhole article with frangible protective coating, method of making, and method of using the same

#327
20150226032
2015-08-13

Combined perforating and fracking tools

#328
20150226028
2015-08-13

Downhole repeat micro-zonal isolation assembly and method

#329
20150226023
2015-08-13

Downhole tool and method for passing control line through tool

#330
20150218923
2015-08-06

Expandable drop device

#331
20150218909
2015-08-06

Downhole flow control, joint assembly and method

#332
20150218906
2015-08-06

ZONE ISOLATION SYSTEM WITH INTEGRAL ANNULAR FLOW CONTROL VALVE

#333
20150204164
2015-07-23

Sliding sleeve sub and method and apparatus for wellbore fluid treatment

#334
20150204155
2015-07-23

Dual barrier open water well completion systems

#335
20150198000
2015-07-16

Drill collar severing tool

#336
20150191990
2015-07-09

Downhole tool and method of use

#337
20150191988
2015-07-09

SUBTERRANEAN BARRIER, SYSTEM AND METHOD OF USE

#338
20150176394
2015-06-25

Method for determining hydraulic fracture orientation and dimension

#339
20150176392
2015-06-25

Perforating packer casing evaluation methods

#340
20150176356
2015-06-25

Freeing pipe stuck in a subterranean well

#341
20150167442
2015-06-18

Formation fracturing and sampling methods

#342
20150167440
2015-06-18

System and methods for controlled fracturing in formations

#343
20150167439
2015-06-18

System and methods for controlled fracturing in formations

#344
20150167438
2015-06-18

Electric fracturing of a reservoir

#345
20150167431
2015-06-18

Downhole apparatus and method

#346
20150167430
2015-06-18

Downhole apparatus and method

#347
20150167429
2015-06-18

Downhole apparatus and method

#348
20150159480
2015-06-11

Method of testing a barrier in a wellbore

#349
20150159469
2015-06-11

Downhole apparatus and method

#350
20150159450
2015-06-11

Composite slip for a downhole tool

#351
20150152714
2015-06-04

Method and apparatus for treating a wellbore

#352
20150152713
2015-06-04

Method and apparatus for treating a wellbore

#353
20150152712
2015-06-04

Method and apparatus for treating a wellbore

#354
20150152710
2015-06-04

Method and apparatus for treating a wellbore

#355
20150143709
2015-05-28

Wellbore caliper with maximum diameter seeking feature

#356
20150136392
2015-05-21

Multi-zone Intelligent and Interventionless Single Trip Completion

#357
20150129219
2015-05-14

Systems and methods for stimulating a plurality of zones of a subterranean formation

#358
20150122493
2015-05-07

Frac sleeve system and method for non-sequential downhole operations

#359
20150122489
2015-05-07

Systems and methods for downhole communication

#360
20150114639
2015-04-30

Re-fracture apparatus and method for wellbore

#361
20150114621
2015-04-30

Confined volume pressure compensation due to thermal loading

#362
20150107858
2015-04-23

Fluid pressure transmission pill

#363
20150101796
2015-04-16

Downhole system for isolating sections of a wellbore

#364
20150096742
2015-04-09

Downhole fast-acting shut-in valve system

#365
20150090465
2015-04-02

WELLBORE PACKER, METHOD AND TUBING STRING

#366
20150090453
2015-04-02

Systems and methods for secondary sealing of a perforation within a wellbore casing

#367
20150090439
2015-04-02

Downhole tool and method of use

#368
20150083419
2015-03-26

Fracturing valve and fracturing tool string

#369
20150075807
2015-03-19

Apparatus and methods for selectively treating production zones

#370
20150075788
2015-03-19

Apparatus and methods for locating a particular location in a wellbore for performing a wellbore operation

#371
20150075783
2015-03-19

METHODS AND ELECTRICALLY-ACTUATED APPARATUS FOR WELLBORE OPERATIONS

#372
20150075781
2015-03-19

Wellbore assembly for injecting a fluid into a subsurface formation, and method of injecting fluids into a subsurface formation

#373
20150075780
2015-03-19

Multi-zone completion systems and methods

#374
20150068743
2015-03-12

Multi-zone bypass packer assembly for gravel packing boreholes

#375
20150068730
2015-03-12

Breaking of frangible isolation elements

#376
20150068728
2015-03-12

Downhole Tool Having Slip Composed of Composite Ring

#377
20150060076
2015-03-05

Profile selective system for downhole tools

#378
20150053397
2015-02-26

Re-fracturing bottom hole assembly and method

#379
20150047828
2015-02-19

Apparatus and method for stimulating subterranean formations

#380
20150041130
2015-02-12

System and method for actuating downhole packers

#381
20150021041
2015-01-22

Setting assembly and method thereof

#382
20140338899
2014-11-20

Completing a well in a reservoir

#383
20140318781
2014-10-30

Completing a well in a reservoir

#384
20140299331
2014-10-09

Expandable device for use in a well bore

#385
20140290944
2014-10-02

Zonal isolation utilizing cup packers

#386
20140262256
2014-09-18

Method and apparatus for stimulating a geothermal well

#387
20140251609
2014-09-11

Assembly for toe-to-heel gravel packing and reverse circulating excess slurry

#388
20140238682
2014-08-28

Method and apparatus for wellbore fluid treatment

#389
20140238675
2014-08-28

Downhole injection tool

#390
20140231069
2014-08-21

Downhole tool and method of use

#391
20140224488
2014-08-14

System and method for temporarily sealing a bore hole

#392
20140196914
2014-07-17

Apparatus and method of zonal isolation

#393
20140124199
2014-05-08

Tubular assembly and method of deploying a downhole device using a tubular assembly

#394
20140116684
2014-05-01

Coiled tubing packer system

#395
20140110107
2014-04-24

Enhanced geothermal systems and reservoir optimization

#396
20140102690
2014-04-17

Pipe in pipe piston thrust system

#397
20140090857
2014-04-03

Flow control devices on expandable tubing run through production tubing and into open hole

#398
20140060814
2014-03-06

Pulse fracturing device and method

#399
20140059874
2014-03-06

Wellbore caliper with maximum diameter seeking feature

#400
20140020911
2014-01-23

Downhole tool system and method related thereto

#401
20140014372
2014-01-16

Pipe in pipe piston thrust system

#402
20140000905
2014-01-02

Method and apparatus for injecting gas into a reservoir

#403
20130319687
2013-12-05

Apparatus configuration downhole

#404
20130319676
2013-12-05

Wellbore fluid treatment process and installation

#405
20130299200
2013-11-14

Wellbore tools and methods

#406
20130299161
2013-11-14

DOUBLE PACKER APPARATUS

#407
20130277053
2013-10-24

Wellbore apparatus and methods for multi-zone well completion, production and injection

#408
20130269938
2013-10-17

Well treatment apparatus, system, and method

#409
20130248179
2013-09-26

Packer for alternate flow channel gravel packing and method for completing a wellbore

#410
20130220644
2013-08-29

Enhanced expandable tubing run through production tubing and into open hole

#411
20130220643
2013-08-29

Expandable tubing run through production tubing and into open hole

#412
20130220642
2013-08-29

Expandable tubing run through production tubing and into open hole

#413
20130220641
2013-08-29

Expandable conical tubing run through production tubing and into open hole

#414
20130206409
2013-08-15

One-way flowable anchoring system and method of treating and producing a well

#415
20130199790
2013-08-08

Wireline conveyed apparatus for wellbore fluid treatment

#416
20130118751
2013-05-16

Formation fracturing

#417
20130112412
2013-05-09

Settable well tool and method

#418
20130068453
2013-03-21

Dual purpose observation and production well

#419
20130056198
2013-03-07

Enhanced geothermal systems and reservoir optimization

#420
20130048315
2013-02-28

Downhole tool having an anti-rotation configuration and method for using the same

#421
20130048314
2013-02-28

Downhole tool and method of use

#422
20130048313
2013-02-28

Downhole tool and method of use

#423
20130048272
2013-02-28

Downhole tool and method of use

#424
20130048271
2013-02-28

Downhole tool and method of use

#425
20130043030
2013-02-21

Processes for fracturing a well

#426
20130032349
2013-02-07

Method of fracturing multiple zones within a well using propellant pre-fracturing

#427
20130008652
2013-01-10

Gravel pack and sand disposal device

#428
20130000899
2013-01-03

One trip toe-to-heel gravel pack and liner cementing assembly

#429
20130000887
2013-01-03

Downhole tool with pumpable section

#430
20120325466
2012-12-27

Fracturing port locator and isolation tool

#431
20120316788
2012-12-13

Formation testing planning and monitoring

#432
20120305315
2012-12-06

Oilfield operation using a drill string

#433
20120279713
2012-11-08

Pulse fracturing device and method

#434
20120273186
2012-11-01

Fluid minotiring and flow characterization

#435
20120267100
2012-10-25

Segmental flow-control method for flow-control filter string in oil-gas well and oil-gas well structure

#436
20120234542
2012-09-20

Method and systems to sever wellbore devices and elements

#437
20120217010
2012-08-30

Open-hole packer for alternate path gravel packing, and method for completing an open-hole wellbore

#438
20120186802
2012-07-26

Well treatment device, method, and system

#439
20120181017
2012-07-19

Expandable device for use in a well bore

#440
20120168180
2012-07-05

Isolation of zones for fracturing using removable plugs

#441
20120150515
2012-06-14

In-situ stress measurements in hydrocarbon bearing shales

#442
20120145382
2012-06-14

System and Method for Operating Multiple Valves

#443
20120111566
2012-05-10

Apparatus and method for stimulating subterranean formations

#444
20120103608
2012-05-03

Gravel pack bypass assembly

#445
20120103606
2012-05-03

Gravel pack assembly for bottom up/toe-to-heel packing

#446
20120097396
2012-04-26

Bottom hole assembly

#447
20120037422
2012-02-16

Drilling tool, apparatus and method for underreaming and simultaneously monitoring and controlling wellbore diameter

#448
20120012343
2012-01-19

Downhole Packer Having Swellable Sleeve

#449
20120012342
2012-01-19

Downhole Packer Having Tandem Packer Elements for Isolating Frac Zones

#450
20110290486
2011-12-01

Well treatment device, method, and system

#451
20110290480
2011-12-01

Surface detection of failed open-hole packers using tubing with external tracer coatings

#452
20110284227
2011-11-24

Formation treatment evaluation

#453
20110278064
2011-11-17

Electronically activated underreamer and calliper tool

#454
20110278017
2011-11-17

Sliding sleeve sub and method and apparatus for wellbore fluid treatment

#455
20110278010
2011-11-17

Method and apparatus for wellbore fluid treatment

#456
20110272148
2011-11-10

Methods, systems and apparatus for coiled tubing testing

#457
20110253393
2011-10-20

Swellable downhole device of substantially constant profile

#458
20110247878
2011-10-13

Expansion and sensing tool

#459
20110214855
2011-09-08

Expandable device for use in a well bore

#460
20110209873
2011-09-01

Method and apparatus for single-trip wellbore treatment

#461
20110198088
2011-08-18

Technique of fracturing with selective stream injection

#462
20110139465
2011-06-16

PACKING TUBE ISOLATION DEVICE

#463
20110132608
2011-06-09

Device for the focus and control of dynamic underbalance or dynamic overbalance in a wellbore

#464
20110127047
2011-06-02

Method and apparatus for wellbore fluid treatment

#465
20110121516
2011-05-26

METHOD FOR SEALING OFF A WATER ZONE IN A PRODUCTION WELL DOWNHOLE AND A SEALING ARRANGEMENT

#466
20110088894
2011-04-21

Methods, apparatus and articles of manufacture to measure gas reservoir formation pressures

#467
20110079390
2011-04-07

CEMENTING SUB FOR ANNULUS CEMENTING

#468
20110067890
2011-03-24

Wellbore fluid treatment process and installation

#469
20110067870
2011-03-24

Complex fracturing using a straddle packer in a horizontal wellbore

#470
20110061863
2011-03-17

Fluid monitoring and flow characterization

#471
20110048732
2011-03-03

System and method for controlling the flow of fluid in branched wells

#472
20110011592
2011-01-20

PULSE FRACTURING DEVICE AND METHOD

#473
20110011580
2011-01-20

Wireless transfer of power and data between a mother wellbore and a lateral wellbore

#474
20100314130
2010-12-16

High-ratio tubular expansion

#475
20100314125
2010-12-16

Stimulation technique for open hole well

#476
20100314124
2010-12-16

Open-hole stimulation system

#477
20100307774
2010-12-09

DEVICE AND METHOD FOR ISOLATING A SECTION OF A WELLBORE

#478
20100300686
2010-12-02

Multiple zone isolation method

#479
20100252256
2010-10-07

METHOD OF ISOLATING A DOWNHOLE ZONE FOR THE GATHERING OF DATA

#480
20100243270
2010-09-30

Method and apparatus for a packer assembly

#481
20100243254
2010-09-30

Method and apparatus for isolating and treating discrete zones within a wellbore

#482
20100223990
2010-09-09

Apparatus and method for formation testing

#483
20100200218
2010-08-12

Apparatus and method for treating zones in a wellbore

#484
20100186957
2010-07-29

Fluid pressure transmission pill

#485
20100157737
2010-06-24

Microhydraulic fracturing with downhole acoustic measurement

#486
20100126722
2010-05-27

WELLBORE SYSTEM AND METHOD OF COMPLETING A WELLBORE

#487
20100101776
2010-04-29

Sealing apparatus

#488
20100065276
2010-03-18

Method and apparatus for wellbore fluid treatment

#489
20100044051
2010-02-25

Zone isolation assembly array and method for isolating a plurality of fluid zones in a subsurface well

#490
20100000736
2010-01-07

Enhanced geothermal systems and reservoir optimization

#491
20090301730
2009-12-10

Apparatus and methods for inflow control

#492
20090301716
2009-12-10

PUMP SYSTEM FOR ZONAL ISOLATION TESTING

#493
20090294121
2009-12-03

Pulse fracturing device and method

#494
20090294118
2009-12-03

Method and apparatus for use in a wellbore

#495
20090288824
2009-11-26

MULTI-ZONE FORMATION FLUID EVALUATION SYSTEM AND METHOD FOR USE OF SAME

#496
20090283280
2009-11-19

Hydraulic open hole packer

#497
20090266549
2009-10-29

Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers

#498
20090250214
2009-10-08

APPARATUS AND METHOD FOR COLLECTING A DOWNHOLE FLUID

#499
20090236102
2009-09-24

Water sensitive variable counterweight device driven by osmosis

#500
20090211769
2009-08-27

Apparatus and methods for setting one or more packers in a well bore

#501
20090211759
2009-08-27

Methods and devices for treating multiple-interval well bores

#502
20090178797
2009-07-16

GROUNDWATER MONITORING TECHNOLOGIES APPLIED TO CARBON DIOXIDE SEQUESTRATION

#503
20090159299
2009-06-25

Dual-stage valve straddle packer for selective stimulation of wells

#504
20090159298
2009-06-25

Methods and systems for completing a well with fluid tight lower completion

#505
20090159278
2009-06-25

Single Packer System for Use in Heavy Oil Environments

#506
20090114008
2009-05-07

Method and apparatus

#507
20090107665
2009-04-30

Methods and apparatus for injecting fluids at a subterranean location in a well

#508
20090090502
2009-04-09

Annulus sealing assembly

#509
20090065195
2009-03-12

Passive completion optimization with fluid loss control

#510
20080314600
2008-12-25

Well treatment device, method and system

#511
20080314591
2008-12-25

SINGLE TRIP WELL ABANDONMENT WITH DUAL PERMANENT PACKERS AND PERFORATING GUN

#512
20080302529
2008-12-11

Multi-zone formation fluid evaluation system and method for use of same

#513
20080296019
2008-12-04

Completion method for fracturing and gravel packing

#514
20080289812
2008-11-27

SYSTEM FOR DOWNHOLE PACKING

#515
20080283252
2008-11-20

SYSTEM AND METHOD FOR MULTI-ZONE WELL TREATMENT

#516
20080277110
2008-11-13

Hydraulic open hole packer

#517
20080236271
2008-10-02

Downhole seal assembly having embedded sensors and method for use of same

#518
20080210422
2008-09-04

Method and apparatus of reservoir stimulation while running casing

#519
20080164026
2008-07-10

Method of isolating and completing multi-zone frac packs

#520
20080156496
2008-07-03

Methods and devices for treating multiple-interval well bores

#521
20080134775
2008-06-12

Apparatus and methods for obtaining measurements below bottom sealing elements of a straddle tool

#522
20080099206
2008-05-01

Methods and apparatus for injecting fluids at a subterranean location in a well

#523
20080093079
2008-04-24

Configurable wellbore zone isolation system and related systems

#524
20080066912
2008-03-20

Method and apparatus for perforating and isolating perforations in a wellbore

#525
20070296810
2007-12-27

Apparatus and method for obtaining images of a borehole

#526
20070295503
2007-12-27

In-situ method of coal gasification

#527
20070289749
2007-12-20

Anchor system for packers in well injection service

#528
20070284109
2007-12-13

Methods and devices for treating multiple-interval well bores

#529
20070235194
2007-10-11

Packer apparatus with annular check valve

#530
20070227746
2007-10-04

Packer cup systems for use inside a wellbore

#531
20070227725
2007-10-04

Packer cup systems for use inside a wellbore

#532
20070158065
2007-07-12

Zone isolation assembly array for isolating a plurality of fluid zones in a subsurface well

#533
20070151734
2007-07-05

Method and apparatus for wellbore fluid treatment

#534
20070095530
2007-05-03

Steam energized heavy oil production system

#535
20070089886
2007-04-26

Expandable Sleeve

#536
20070068676
2007-03-29

Wellbore fluid saver assembly

#537
20070062710
2007-03-22

Seal assembly for sealingly engaging a packer

#538
20070044960
2007-03-01

Methods, systems and apparatus for coiled tubing testing

#539
20070000665
2007-01-04

Isolation assembly for coiled tubing

#540
20060213658
2006-09-28

In-situ method of coal gasification

#541
20060196680
2006-09-07

Casing packoff system

#542
20060196660
2006-09-07

System and method for completing a subterranean well

#543
20060102361
2006-05-18

Hydraulic set permanent packer with isolation of hydraulic actuator and built in redundancy

#544
20060054316
2006-03-16

Method and apparatus for production logging

#545
20060037745
2006-02-23

Expandable device for use in a well bore

#546
20060032628
2006-02-16

Well casing straddle assembly

#547
20060000620
2006-01-05

Straddle packer and method for using the same in a well bore

#548
20050263282
2005-12-01

Well abandonment apparatus

#549
20050236154
2005-10-27

Isolation assembly for coiled tubing

#550
20050178552
2005-08-18

Method and apparatus for wellbore fluid treatment

#551
20050103493
2005-05-19

Moled foam plugs, plug systems and methods of using same

#552
19086826
2026-05-19

Downhole plug

#553
18937400
2026-05-05

Interval control valve with modular screens downhole in a wellbore

#554
18234363
2025-01-07

Isolation plugs, ratchet systems, and methods to set a packing element

#555
18059358
2024-04-23

Method and system for mitigating downhole water production

#556
17305475
2022-11-22

Temporary wellbore barrier using ferromagnetic fluid

#557
17138228
2022-05-03

Phase transformation material delivery and deployment chassis for openhole isolation

#558
16272699
2020-04-07

Stimulating u-shape wellbores

#559
16055655
2019-04-16

Casing wiper plug system and method for operating the same

#560
15439198
2020-06-23

Downhole plug

#561
13302718
2015-06-02

Methods, device and components for securing or coupling geophysical sensors to a borehole