ClassID:

135492

E21B33/124 - 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

Sub-classes:
Recent Application in this class:
#1
20260132697
2026-05-14

Downhole Tool and Method of Use

#2
20260125971
2026-05-07

INTERVAL CONTROL VALVE WITH MODULAR SCREENS DOWNHOLE IN A WELLBORE

#3
20260117630
2026-04-30

SELECTIVE EXTRACTION SYSTEM AND METHOD

#4
20260055700
2026-02-26

METHOD AND APPARATUS FOR STRESS TESTING OF GEOLOGICAL FORMATIONS WITH A HIGH PERMEABILITY

#5
20260015921
2026-01-15

METHODS AND DEVICES FOR RETAINING CONVEYED HEAT UP A WELLBORE

#6
20250361783
2025-11-27

COIL SHIFTABLE PACKER

#7
20250354467
2025-11-20

PRODUCING HYDROCARBONS FROM MULTIPLE FORMATIONS

#8
20250354466
2025-11-20

OPTIMAL SUBSURFACE DESIGN FOR HIGH BUBBLE POINT PRESSURE RESERVOIRS

#9
20250334036
2025-10-30

INDIRECT HYDRAULIC FRACTURING METHOD AND SYSTEM

#10
20250334022
2025-10-30

CURING CASING LEAK TOOL

#11
20250270904
2025-08-28

Remediating Failed Isolation in Plug-and-Perforation Operations

#12
20250116168
2025-04-10

GAS-LIQUID SPACER FOR REMOVAL OF LIQUID FROM SUBSEA LINES AND ITS RELATED USES

#13
20250092742
2025-03-20

DOWNHOLE ROTARY SLIP RING JOINT TO ALLOW ROTATION OF ASSEMBLIES WITH THREE OR MORE CONTROL LINES

#14
20250059847
2025-02-20

PROCESSES FOR INJECTION OF FLUIDS INTO A WELLBORE VIA DRILL PIPE

#15
20250059842
2025-02-20

ISOLATION PLUGS, RATCHET SYSTEMS, AND METHODS TO SET A PACKING ELEMENT

#16
20250043655
2025-02-06

SYSTEMS AND METHODS FOR MULTISTAGE FRACTURING

#17
20250043651
2025-02-06

ELECTRIC COMPLETION SYSTEM AND METHODOLOGY

#18
20250012157
2025-01-09

Wellbore tubular anchor sub and seal for modular completion interface

#19
20240418082
2024-12-19

DOWNHOLE PACKER APPARATUS PROMOTING RADIAL FLOW

#20
20240384621
2024-11-21

Monitoring integrity of downhole mechanical plug

#21
20240295153
2024-09-05

PROCESSES FOR INJECTION OF FLUIDS INTO A WELLBORE VIA DRILL PIPE

#22
20240287881
2024-08-29

Deep gas-lift in compromised wells

#23
20240287878
2024-08-29

DUAL-PUMP ASSEMBLY TO SAMPLE DOWNHOLE HEAVY HYDROCARBONS

#24
20240287868
2024-08-29

DOWNHOLE TOOL AND METHOD OF USE

#25
20240209728
2024-06-27

Processes for injection of fluids into a wellbore

#26
20240209714
2024-06-27

SEALING ELEMENT WITH SLOPED ENDS

#27
20240117702
2024-04-11

SEALING ELEMENT OF ISOLATION DEVICE WITH INNER CORE AND OUTER SHELL

#28
20240060375
2024-02-22

Treatment system, method, and borehole system

#29
20240011366
2024-01-11

COIL SHIFTABLE PACKER

#30
20230358110
2023-11-09

Method for isolation of borehole pressure while performing a borehole operation in a pressure isolated borehole zone

#31
20230304386
2023-09-28

Method and downhole apparatus to accelerate wormhole initiation and propagation during matrix acidizing of a subterranean rock formation

#32
20230265739
2023-08-24

Gas capable frangible disc barrier valve

#33
20230203945
2023-06-29

Drill stem testing

#34
20230203894
2023-06-29

Liner/casing buoyancy arrangement, method and system

#35
20230203893
2023-06-29

LINER/CASING BUOYANCY ARRANGEMENT, METHOD AND SYSTEM

#36
20230193719
2023-06-22

PRESSURE CYCLE DOWNHOLE TOOL ACTUATION

#37
20230184056
2023-06-15

Method and Apparatus for a plug including a radial and collapsible gap within the continuous expandable sealing ring.

#38
20230184052
2023-06-15

Pump Out Plug Barrier

#39
20230184051
2023-06-15

Selective zonal isolation

#40
20230167705
2023-06-01

Method and apparatus for a plug with a retractable pivoting mechanism for untethered object

#41
20230133348
2023-05-04

SELECTIVE EXTRACTION SYSTEM AND METHOD

#42
20230111367
2023-04-13

DOWNHOLE INTERVENTION AND COMPLETION DRONE AND METHODS OF USE

#43
20230091554
2023-03-23

Inflatable element system for downhole tools

#44
20230057873
2023-02-23

Maintaining integrity of lower completion for multi-stage fracturing

#45
20230050733
2023-02-16

Downhole zonal isolation assembly

#46
20230041390
2023-02-09

Methods for in-situ application of a coating agent to production tubing using a plunger lift system

#47
20220403713
2022-12-22

System and method for performing a straddle frac operation

#48
20220389789
2022-12-08

Methods and apparatus for providing a plug activated by cup and untethered object

#49
20220389787
2022-12-08

COLLAPSIBLE SHELL PACKER FOR METAL-TO-METAL SEALING

#50
20220389786
2022-12-08

Sealing assembly for wellbore operations

#51
20220372839
2022-11-24

Methods of sealing polished bore receptacles by localized sealant injection

#52
20220356774
2022-11-10

Extreme Temperature Isolation Packer and Deployment System

#53
20220333485
2022-10-20

Systems and methods for evaluating subterranean formations using an induced gas logging tool

#54
20220333463
2022-10-20

Downhole rotary slip ring joint to allow rotation of assemblies with three or more control lines

#55
20220333447
2022-10-20

Downhole rotary slip ring joint to allow rotation of assemblies with multiple control lines

#56
20220333445
2022-10-20

DOWNHOLE ROTARY SLIP RING JOINT TO ALLOW ROTATION OF ASSEMBLIES WITH ELECTRICAL AND FIBER OPTIC CONTROL LINES

#57
20220325605
2022-10-13

Method for interval action on horizontal wells

#58
20220299149
2022-09-22

Isolation tool and methods of isolating a section of pipe or a vessel

#59
20220298882
2022-09-22

ISOLATION PLUG TOOL AND METHOD

#60
20220290518
2022-09-15

Repairing a cased wellbore

#61
20220275699
2022-09-01

Solid state lost circulation material

#62
20220243554
2022-08-04

Downhole tool and method of use

#63
20220228457
2022-07-21

Isolation tool and methods of use thereof

#64
20220220822
2022-07-14

Wire line deployable metal patch stackable system

#65
20220205348
2022-06-30

Apparatus, method and wellbore installation to mitigate heat damage to well components during high temperature fluid injection

#66
20220195832
2022-06-23

Downhole completion system

#67
20220195827
2022-06-23

Wellbore sleeve injector and method

#68
20220120151
2022-04-21

Methods and apparatus for providing a plug with a two-step expansion

#69
20220112784
2022-04-14

Cement plug fragmentation enhancement

#70
20220081982
2022-03-17

DOWNHOLE INTERVENTION AND COMPLETION DRONE AND METHODS OF USE

#71
20220056773
2022-02-24

Collapsible and retrievable setting apparatus and method of use

#72
20220049578
2022-02-17

Reservoir isolation valve for secondary completion

#73
20220049573
2022-02-17

Method and apparatus for providing a plug with a deformable expandable continuous ring creating a fluid barrier

#74
20220042409
2022-02-10

Method and downhole apparatus to accelerate wormhole initiation and propagation during matrix acidizing of a subterranean rock formation

#75
20220042393
2022-02-10

Dissolvable object with a cavity and a fluid entry point

#76
20220034186
2022-02-03

Isolating a wellbore with a wellbore isolation system

#77
20220025730
2022-01-27

Downhole well tools and methods of using such

#78
20220018202
2022-01-20

Well collapse reconnect method

#79
20210404284
2021-12-30

Wellbore isolation device

#80
20210404283
2021-12-30

Downhole fishing tool

#81
20210381351
2021-12-09

Multi-zone single trip completion system

#82
20210348484
2021-11-11

Well intervention-less control of perforation formation and isolation

#83
20210317724
2021-10-14

Self-destructible frac ball enclosed within a destructible ball retainer

#84
20210317721
2021-10-14

Dual sub-surface release plug with bypass for small diameter liners

#85
20210317717
2021-10-14

Downhole tool with bottom composite slip

#86
20210293112
2021-09-23

Isolation device with inner mandrel removed after setting

#87
20210293106
2021-09-23

Methods and systems for mapping a wellbore for refracturing

#88
20210277736
2021-09-09

SETTING MECHANICAL BARRIERS IN A SINGLE RUN

#89
20210270101
2021-09-02

Fluid flow control during well treatment

#90
20210256340
2021-08-19

Straddle packer with fluid pressure packer set and velocity bypass for propant-laden fracturing fluids

#91
20210246780
2021-08-12

Reservoir logging and pressure measurement for multi-reservoir wells

#92
20210230969
2021-07-29

Devices and methods to mitigate pressure buildup in an isolated wellbore annulus

#93
20210230947
2021-07-29

Completion systems and methods to perform completion operations

#94
20210189831
2021-06-24

Modular pressure cylinder for a downhole tool

#95
20210180440
2021-06-17

Downhole production fluid fractionation system

#96
20210180426
2021-06-17

Wire line deployable metal patch stackable system

#97
20210164320
2021-06-03

Straddle packer with fluid pressure packer set and automatic stay-set

#98
20210164314
2021-06-03

Fluid flow control during well treatment

#99
20210156218
2021-05-27

Cased bore straddle packer

#100
20210140263
2021-05-13

Wellbore isolation device

#101
20210131283
2021-05-06

Focused formation sampling method and apparatus

#102
20210108481
2021-04-15

Insertion of a seal stinger into a packer positioned in a wellbore to facilitate straddling a damaged zone within the wellbore

#103
20210087907
2021-03-25

Downhole packer apparatus

#104
20210079773
2021-03-18

Well injection and production method and system

#105
20210062628
2021-03-04

Method and apparatus for producing well fluids

#106
20210062626
2021-03-04

Downhole pump and method for producing well fluids

#107
20210054735
2021-02-25

Measuring horizontal stress in an underground formation

#108
20210054704
2021-02-25

Zonal isolation device with expansion ring

#109
20210040827
2021-02-11

Borehole wall resistance increasing apparatus for improving energy utilization rate of injection gas

#110
20210025259
2021-01-28

Tandem cement retainer and bridge plug

#111
20210003003
2021-01-07

Drill stem testing

#112
20200378210
2020-12-03

High pressure sealing tool for use in downhole environment

#113
20200340328
2020-10-29

Downhole tool with a slip insert having a hole

#114
20200340327
2020-10-29

Downhole plugging system

#115
20200325750
2020-10-15

Sealing tubing anchor catcher

#116
20200308946
2020-10-01

WELL STIMULATION APPARATUS AND A METHOD OF USE THEREOF

#117
20200291737
2020-09-17

Downhole sealing apparatuses and related downhole assemblies and methods

#118
20200256175
2020-08-13

Stimulating U-shape wellbores

#119
20200256174
2020-08-13

Stimulating U-shape wellbores

#120
20200256153
2020-08-13

Straddle packer with fluid pressure packer set and automatic stay-set

#121
20200256128
2020-08-13

Deflector assembly and efficient method for multi-stage fracturing a multilateral well using the same

#122
20200182008
2020-06-11

Methods and apparatus for use in oil and gas well completion

#123
20200149378
2020-05-14

Multi-zone single trip completion system

#124
20200131878
2020-04-30

Apparatuses and methods for enabling multistage hydraulic fracturing

#125
20200123872
2020-04-23

Plug and production tubing for a petroleum well

#126
20200115992
2020-04-16

Systems and techniques for controlling and monitoring downhole operations in a well

#127
20200088002
2020-03-19

Casing patch for loss circulation zone

#128
20200080404
2020-03-12

Multi-functional sleeve completion system with return and reverse fluid path

#129
20200063524
2020-02-27

Plug system

#130
20200063520
2020-02-27

Wellhead arrangement and method

#131
20200056446
2020-02-20

Tandem cement retainer and bridge plug

#132
20200056445
2020-02-20

Complex components for molded composite frac plugs

#133
20200056443
2020-02-20

Downhole fishing tool

#134
20200056442
2020-02-20

Wellbore sleeve injector and method

#135
20200048989
2020-02-13

Method and Apparatus for Wellbore Fluid Treatment

#136
20200040694
2020-02-06

DOWNHOLE TOOL AND METHOD OF USE

#137
20200040693
2020-02-06

Annular barrier system

#138
20190377992
2019-12-12

Straddle packer with fluid pressure packer set and velocity bypass for proppant-laden fracturing fluids

#139
20190376361
2019-12-12

System and method for isolating a wellbore zone for rigless hydraulic fracturing

#140
20190368306
2019-12-05

Downhole tool and method of use

#141
20190345821
2019-11-14

Monitoring systems and methods

#142
20190316434
2019-10-17

Downhole tool with bottom composite slip

#143
20190292905
2019-09-26

Method of monitoring a reservoir

#144
20190292873
2019-09-26

Downhole tool and method of use

#145
20190284933
2019-09-19

Multi-zone well testing

#146
20190284898
2019-09-19

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

#147
20190234180
2019-08-01

Gas capable frangible disc barrier valve

#148
20190234162
2019-08-01

System and method to control wellbore pressure during perforating

#149
20190226311
2019-07-25

Methods and electrically-actuated apparatus for wellbore operations

#150
20190195040
2019-06-27

Modular pressure cylinder for a downhole tool

#151
20190195039
2019-06-27

Straddle packer with fluid pressure packer set and velocity bypass

#152
20190186230
2019-06-20

Downhole operations relating to open hole gravel packs and tools for use therein

#153
20190186229
2019-06-20

Cased bore straddle packer

#154
20190186228
2019-06-20

CASING WIPER PLUG SYSTEM AND METHOD FOR OPERATING THE SAME

#155
20190178051
2019-06-13

System and method for delivering a flowable substance and borehole sealing

#156
20190178048
2019-06-13

Downhole repairing system and method of use

#157
20190169951
2019-06-06

EXTENDED REACH PLUG HAVING DEGRADABLE ELEMENTS

#158
20190162046
2019-05-30

Diverter valve for a bottom hole assembly

#159
20190162037
2019-05-30

Place-n-perf

#160
20190153808
2019-05-23

PLUG SLIP RING WITH RETAINING MECHANISM AND METHOD

#161
20190128088
2019-05-02

PLUG ASSEMBLY FOR A PIPE SYSTEM

#162
20190128081
2019-05-02

Apparatus and method to expel fluid

#163
20190120006
2019-04-25

Downhole casing patch

#164
20190100977
2019-04-04

Non-Extruding Single Packer

#165
20190093446
2019-03-28

Hydraulic device and method for locating and sealing holes or cracks in oil well production tubing

#166
20190078407
2019-03-14

SEAT ASSEMBLY FOR USE IN FRACTURING SUBSURFACE GEOLOGIC FORMATIONS

#167
20190063171
2019-02-28

Hydraulic fraction down-hole system with circulation port and jet pump for removal of residual fracking fluid

#168
20190055809
2019-02-21

Gas separator assembly with degradable material

#169
20190040709
2019-02-07

Test dart system and method

#170
20190032441
2019-01-31

Annular barrier for small diameter wells

#171
20190010785
2019-01-10

Method and apparatus for wellbore fluid treatment

#172
20180371895
2018-12-27

Smart well plug and method for inspecting the integrity of a barrier in an underground wellbore

#173
20180363460
2018-12-20

Apparatus and method for testing an oil and/or gas well with a multiple-stage completion

#174
20180363439
2018-12-20

Method and apparatus for wellbore fluid treatment

#175
20180355695
2018-12-13

Crude oil production method and equipment

#176
20180334881
2018-11-22

Pressure perforated well casing collar and method of use

#177
20180328152
2018-11-15

Expandable device for use in a well bore

#178
20180320478
2018-11-08

METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT

#179
20180306003
2018-10-25

DOWNHOLE APPARATUS AND METHOD

#180
20180291709
2018-10-11

METHOD AND APPARATUS FOR TREATING A WELLBORE

#181
20180291703
2018-10-11

DOWNHOLE TOOL AND METHOD OF USE

#182
20180283133
2018-10-04

Active flow control with multizone hydraulic power distribution module

#183
20180258745
2018-09-13

System and method for stimulating a well

#184
20180252069
2018-09-06

Plugging tool, and method of plugging a well

#185
20180245440
2018-08-30

Methods for Refracturing a Subterranean Formation

#186
20180202273
2018-07-19

System and methods for controlled fracturing in formations

#187
20180202269
2018-07-19

Downhole tool including a resettable plug with a flow-through valve

#188
20180202257
2018-07-19

Mandrel for a Downhole Tool

#189
20180187500
2018-07-05

Fingered member with dissolving insert

#190
20180179852
2018-06-28

Downhole tool and method of use

#191
20180179851
2018-06-28

Downhole tool and method of use

#192
20180179850
2018-06-28

DOWNHOLE TOOL AND METHOD OF USE

#193
20180171748
2018-06-21

Downhole tool and method of use

#194
20180171741
2018-06-21

Wellbore plug isolation system and method

#195
20180156006
2018-06-07

SWELLABLE CHOKE PACKER

#196
20180128074
2018-05-10

Testable isolation packer

#197
20180100380
2018-04-12

Well control using a modified liner tie-back

#198
20180087343
2018-03-29

Wellbore plug isolation system and method

#199
20180073321
2018-03-15

Multi-zone well treatment

#200
20180051535
2018-02-22

Systems and techniques for controlling and monitoring downhole operations in a well

#201
20180038221
2018-02-08

Apparatus and method for locating and setting a tool in a profile

#202
20180038191
2018-02-08

Downhole tool and methods of use

#203
20180023351
2018-01-25

Increasing hydrocarbon recovery from reservoirs

#204
20180010418
2018-01-11

Downhole tool and method of use

#205
20180010417
2018-01-11

Downhole tool and method of use

#206
20180010413
2018-01-11

Plug of extended reach

#207
20170362914
2017-12-21

Borehole data transmission method for flowed back borehole plugs with a lower slip assembly or object landed on said plugs

#208
20170356267
2017-12-14

Downhole straddle assembly

#209
20170335650
2017-11-23

System and method for downhole operations

#210
20170284179
2017-10-05

METHOD FOR DEVELOPING AN OIL BEARING FORMATION

#211
20170275991
2017-09-28

Monitoring systems and methods

#212
20170275972
2017-09-28

Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation

#213
20170268320
2017-09-21

Methods and electrically-actuated apparatus for wellbore operations

#214
20170268308
2017-09-21

SWELLGUARD ER ISOLATION TOOL

#215
20170254171
2017-09-07

Apparatus for injecting a fluid into a geological formation

#216
20170241233
2017-08-24

Extended reach plug

#217
20170226820
2017-08-10

System and method for isolating a section of a well

#218
20170226819
2017-08-10

Downhole well tools and methods of using such

#219
20170218741
2017-08-03

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

#220
20170191345
2017-07-06

Method of sealing a fracture in a wellbore and sealing system

#221
20170183931
2017-06-29

Fracking tool further having a dump port for sand flushing, and method of fracking a formation using such tool

#222
20170159401
2017-06-08

EXPANDABLE TUBULAR ELEMENT BEARING ONE OR MORE SWELLING SEALS

#223
20170159398
2017-06-08

Apparatuses and methods for enabling multistage hydraulic fracturing

#224
20170152727
2017-06-01

Lateral drilling system

#225
20170022803
2017-01-26

Petroleum well formation back pressure field meter system

#226
20160376868
2016-12-29

Downhole packer tool

#227
20160376867
2016-12-29

Apparatus and method for isolating a section of a pipe riser bore in the course of riser renewal

#228
20160369588
2016-12-22

Downhole tool having a mandrel with a relief point

#229
20160369584
2016-12-22

High energy severing tool with pressure balanced explosives

#230
20160333660
2016-11-17

Dual barrier pump-out plug

#231
20160333659
2016-11-17

Method of placing cement sealing rings at predetermined annular locations around a tubular string

#232
20160305210
2016-10-20

Perforator with a mechanical diversion tool and related methods

#233
20160298413
2016-10-13

Settable well tool method

#234
20160265329
2016-09-15

FRACTURING WHILE TRIPPING

#235
20160265305
2016-09-15

Downhole system for use in a wellbore and method for the same

#236
20160258258
2016-09-08

Method and tool for perforating a wellbore casing in a formation using a sand jet, and using such tool to further frac the formation

#237
20160251949
2016-09-01

Method and apparatus for wellbore fluid treatment

#238
20160251932
2016-09-01

Method and apparatus for wellbore fluid treatment

#239
20160237776
2016-08-18

Downhole tool with one-piece slip

#240
20160230507
2016-08-11

Apparatus for injecting a fluid into a geological formation

#241
20160230496
2016-08-11

Expandable tools using segmented cylindrical sections

#242
20160208571
2016-07-21

Method and apparatus for wellbore control

#243
20160194936
2016-07-07

Completion assembly with bypass for reversing valve

#244
20160186538
2016-06-30

Coiled tubing through production tubing zone isolation and production method

#245
20160177697
2016-06-23

Subsurface injection of reject stream

#246
20160160638
2016-06-09

Sandface liner with power, control and communication link via a tie back string

#247
20160160625
2016-06-09

Method for developing oil or natural gas shale or tight rock formations in two step process

#248
20160160600
2016-06-09

Use of segmented ball seat and rotational locking collet for frac ball counter

#249
20160145963
2016-05-26

Thermal memory spacing system

#250
20160138360
2016-05-19

System and Method for Enabling the Detection of Fluid Production and Stimulation of a Portion of a Wellbore

#251
20160130911
2016-05-12

Wellbore systems and methods for supplying treatment fluids via more than one path to a formation

#252
20160123140
2016-05-05

Oilfield operation using a drill string

#253
20160123126
2016-05-05

Use of real-time pressure data to evaluate fracturing performance

#254
20160123114
2016-05-05

Straddle packer equalization and self recovery module

#255
20160115770
2016-04-28

TREATMENT STRING AND METHOD OF USE THEREOF

#256
20160108698
2016-04-21

Apparatus for Zonal Communication Interruption

#257
20160102524
2016-04-14

Inflow control system for use in a wellbore

#258
20160097263
2016-04-07

Morphing tubulars

#259
20160084078
2016-03-24

Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool

#260
20160084072
2016-03-24

Hydraulic injection diagnostic tool

#261
20160084059
2016-03-24

Methods and apparatus for downhole propellant-based stimulation with wellbore pressure containment

#262
20160084057
2016-03-24

CONCENTRIC COIL TUBING DEPLOYMENT FOR HYDRAULIC FRACTURE APPLICATION

#263
20160084056
2016-03-24

Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool

#264
20160084055
2016-03-24

Downhole stimulation tools and related methods of stimulating a producing formation

#265
20160084046
2016-03-24

Crossover tool, method of making a crossover tool and two parts of a two-part crossover tool

#266
20160084034
2016-03-24

ONE-TRIP PACKER AND PERFORATING GUN SYSTEM

#267
20160084028
2016-03-24

FRACTURING PORT LOCATOR AND ISOLATION TOOL

#268
20160076343
2016-03-17

TREATING AND COMPLETION SYSTEM AND METHOD OF TREATING A FORMATION

#269
20160069157
2016-03-10

Method and apparatus for wellbore fluid treatment

#270
20160061009
2016-03-03

Inertial occlusion release device

#271
20160053598
2016-02-25

Method and apparatus for wellbore fluid treatment

#272
20160053597
2016-02-25

HYDRAULIC FRACTURING WHILE DRILLING AND/OR TRIPPING

#273
20160047197
2016-02-18

Downhole tool device and method for using the same

#274
20160047196
2016-02-18

Wellbore plug isolation system and method

#275
20160047190
2016-02-18

Barrier device with fluid bypass for multi-zone wellbores

#276
20160047179
2016-02-18

INCREASING HYDROCARBON RECOVERY FROM RESERVOIRS

#277
20160040520
2016-02-11

Methods for multi-zone fracture stimulation of a well

#278
20160032688
2016-02-04

Ferrofluid tool for influencing electrically conductive paths in a wellbore

#279
20160032683
2016-02-04

Downhole communication and control system and method for non-sequential downhole operations

#280
20160032680
2016-02-04

Self-boosting expandable seal with cantilevered seal arm

#281
20160024874
2016-01-28

Dual barrier perforating system

#282
20160017697
2016-01-21

Completion tool, string completion system, and method of completing a well

#283
20160017689
2016-01-21

Gravity-based casing orientation tools and methods

#284
20160010421
2016-01-14

Testable isolation packer

#285
20160010414
2016-01-14

High energy severing tool with pressure balanced explosives

#286
20160003031
2016-01-07

Intelligent test system and method for multi-segment fractured horizontal well

#287
20160003021
2016-01-07

Hydraulic fracturing isolation methods and well casing plugs for re-fracturing horizontal multizone wellbores

#288
20160003013
2016-01-07

Multi-zone single treatment gravel pack system

#289
20160002998
2016-01-07

Method of Supporting a Subterranean Conduit

#290
20150376998
2015-12-31

Systems and methods for inline chemical injection for dump flood water injectors

#291
20150376994
2015-12-31

Wireline assisted coiled tubing portion and method for operation of such a coiled tubing portion

#292
20150376979
2015-12-31

Straddle packer system

#293
20150376975
2015-12-31

Synchronic dual packer with energized slip joint

#294
20150376968
2015-12-31

Synchronic dual packer

#295
20150369023
2015-12-24

WELL INJECTION AND PRODUCTION METHOD AND SYSTEM

#296
20150369019
2015-12-24

Method for stabilizing a cavity in a well

#297
20150361782
2015-12-17

Method of pressure testing a plugged well

#298
20150361757
2015-12-17

BOREHOLE SHUT-IN SYSTEM WITH PRESSURE INTERROGATION FOR NON-PENETRATED BOREHOLE BARRIERS

#299
20150361746
2015-12-17

Two phase mud flow usage with dual-string drilling system

#300
20150354334
2015-12-10

Refracturing an already fractured borehole