ClassID:

135596

E21B43/086 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Subsoil filtering; Screens or liners Screens with preformed openings, e.g. slotted liners

Recent Application in this class:
#1
20250137467
2025-05-01

WATER WELL SUBMERSIBLE PUMP FILTER

#2
20240426192
2024-12-26

APPARATUS AND METHODS FOR CONDITIONING WELL FLUID FROM AN UNDERGROUND HYDROCARBON RESERVOIR

#3
20240410276
2024-12-12

ELECTROMECHANICAL ACTUATOR AND METHOD OF USE

#4
20240240543
2024-07-18

Torque resistant shroud system

#5
20240229612
2024-07-11

MECHANICAL HOLD DOWN WITH INTERNAL STRAINER

#6
20240229610
2024-07-11

SCREEN ASSEMBLY HAVING PERMEABLE HANDLING AREA

#7
20240167354
2024-05-23

Self-cleaning filter sub and methods of use

#8
20240093574
2024-03-21

Autonomous flow control devices for viscosity dominant flow

#9
20230235650
2023-07-27

Fluid Conditioning and/or Treatment System

#10
20230203916
2023-06-29

IN SITU EXPANDABLE TUBULARS

#11
20230193723
2023-06-22

Autonomous flow control devices for viscosity dominant flow

#12
20230084306
2023-03-16

System and method for electromechanical actuator apparatus having a screen assembly

#13
20220389788
2022-12-08

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

#14
20220349291
2022-11-03

SEPARATING DEVICE AND USE OF A SEPARATING DEVICE

#15
20220333465
2022-10-20

Gopher trap

#16
20220325164
2022-10-13

Ternary water control and gas recovery method suitable for unconsolidated siltstone gas reservoir

#17
20220290531
2022-09-15

SEPARATING DEVICE AND USE OF A SEPARATING DEVICE

#18
20220213768
2022-07-07

Downhole water removal tool

#19
20220205361
2022-06-30

Full-length screen pipe hole protection device and method with pressurized hole packing in soft coal seam

#20
20220074282
2022-03-10

WATERFLOOD COMPLETION SYSTEM AND ASSEMBLY

#21
20220056788
2022-02-24

Method and system of self-contained replaceable filtration screen with high performance for oil and gas wells

#22
20220056787
2022-02-24

Recirculating gravel pack system

#23
20220049585
2022-02-17

SEPARATING DEVICE AND USE OF A SEPARATING DEVICE

#24
20220034202
2022-02-03

DOWNHOLE SAND CONTROL SCREEN SYSTEM

#25
20210381346
2021-12-09

Screens

#26
20210332687
2021-10-28

SEPARATING DEVICE AND USE OF A SEPARATING DEVICE

#27
20210324712
2021-10-21

Screen assembly having permeable handling area

#28
20210277750
2021-09-09

Multiple shunt pressure assembly for gravel packing

#29
20210238964
2021-08-05

Compliant screen shroud to limit expansion

#30
20210222524
2021-07-22

System and methodology including strain filter in downhole pumps

#31
20210215021
2021-07-15

Filter sub for downhole applications

#32
20210140281
2021-05-13

Well screen for use with external communication lines

#33
20210062621
2021-03-04

DRILLING MUD SCREEN APPARATUS AND METHODS THEREOF

#34
20210040837
2021-02-11

AUTOMATED SAND GRAIN BRIDGE STABILITY SIMULATOR

#35
20200408073
2020-12-31

Sand control screen assemblies and associated methods of manufacturing

#36
20200340334
2020-10-29

Oil well tool system and apparatus

#37
20200308937
2020-10-01

LINER FOR A WELLBORE

#38
20200270957
2020-08-27

Diffuser assembly

#39
20200208496
2020-07-02

Inflow control device and method for completing a wellbore

#40
20200199979
2020-06-25

High angle and fractal printed screen

#41
20200109611
2020-04-09

PORTABLE MANUFACTURING AND ASSEMBLING FACILITY FOR MODULAR DOWNHOLE SAND CONTROL SCREENS AND FLOW-CONTROL DEVICES

#42
20200102806
2020-04-02

COMPOSITE WATER-CONTROLLING AND FLOW-LIMITING DEVICE AND SCREEN PIPE THEREOF

#43
20200087996
2020-03-19

Diffuser assembly with vibration feature

#44
20200080401
2020-03-12

In situ expandable tubulars

#45
20200063534
2020-02-27

Contaminant extraction in a borehole

#46
20200024928
2020-01-23

Reducing erosional peak velocity of fluid flow through sand screens

#47
20200011162
2020-01-09

Filtration media for an open hole production system having an expandable outer surface

#48
20200011155
2020-01-09

System and methodology for controlling fluid flow

#49
20200003031
2020-01-02

In-line mud screen manifold

#50
20200003029
2020-01-02

Gopher Trap

#51
20190301267
2019-10-03

System and method for electromechanical actuator apparatus having a screen assembly

#52
20190284913
2019-09-19

Systems and methods for gravel packing wells

#53
20190264546
2019-08-29

Method and apparatus for installation and removal of inline filter screens and other objects

#54
20190264543
2019-08-29

In situ expandable tubulars

#55
20190257178
2019-08-22

ADDITIVELY MANUFACTURED DOWNHOLE COMPONENT INCLUDING FRACTAL GEOMETRY

#56
20190226304
2019-07-25

Flow distribution assemblies for distributing fluid flow through screens

#57
20190195052
2019-06-27

Sand control screen for heavy oil thermal recovery

#58
20190136672
2019-05-09

Downhole screen assembly

#59
20190120027
2019-04-25

Base pipes for sand control screen assemblies

#60
20190112900
2019-04-18

ADJUSTABLE OPENING SIZE FILTRATION CONFIGURATION AND METHOD

#61
20190093458
2019-03-28

Protective shrouds for sand control screen assemblies

#62
20190085676
2019-03-21

Gas and sand separator

#63
20190085663
2019-03-21

In-line mud screen manifold useful in downhole applications

#64
20190073406
2019-03-07

Processing of computer log messages for visualization and retrieval

#65
20190071954
2019-03-07

Perforated pipe system and method of use

#66
20190063170
2019-02-28

Diffuser assembly

#67
20190032457
2019-01-31

SAND SCREEN FOR DOWNHOLE OPERATIONS

#68
20180371880
2018-12-27

Slotted liner with optimal slot configuration

#69
20180334881
2018-11-22

Pressure perforated well casing collar and method of use

#70
20180328152
2018-11-15

Expandable device for use in a well bore

#71
20180320486
2018-11-08

Screens

#72
20180274341
2018-09-27

PRESSURE PERFORATED WELL CASING SYSTEMS

#73
20180274312
2018-09-27

Lost circulation zone isolating liner

#74
20180266218
2018-09-20

Annular flow rings for sand control screen assemblies

#75
20180238150
2018-08-23

Methods of coating a sand screen component

#76
20180209222
2018-07-26

Double wall pipe connection system

#77
20180195384
2018-07-12

Coal seam gas production determination

#78
20180156011
2018-06-07

Method for achieving zonal control in a wellbore when using casing or liner drilling

#79
20180128067
2018-05-10

Self-cleaning filter

#80
20180112499
2018-04-26

Flushing filter

#81
20180094507
2018-04-05

Chemical attenuator sleeve

#82
20180087350
2018-03-29

In situ expandable tubulars

#83
20180081468
2018-03-22

Downhole apparatus

#84
20180073334
2018-03-15

Method and apparatus for producing gas from a formation containing both gas and water

#85
20180045029
2018-02-15

System and a method for exploitation of gas from gas hydrate formations

#86
20170370192
2017-12-28

Manufacturing method of rib support for screen/filter cartridge

#87
20170362922
2017-12-21

Filter Media For Sand Control Screen Assemblies

#88
20170362921
2017-12-21

Drainage layers for sand control screen assemblies

#89
20170362920
2017-12-21

Base pipes for sand control screen assemblies

#90
20170362919
2017-12-21

Protective shrouds for sand control screen assemblies

#91
20170362918
2017-12-21

Gravel pack system with slurry exit port in coupling and method of gravel packing

#92
20170350219
2017-12-07

Screen assembly for a resource exploration system

#93
20170350218
2017-12-07

Screen assembly for a resource exploration system

#94
20170254185
2017-09-07

Separating device for removing solid particles from liquid and gas flows for high differential pressures

#95
20170254180
2017-09-07

Downhole diffuser assembly

#96
20170218736
2017-08-03

Movable combined sand control pipe of axial and radial slotted screen pipes

#97
20170211362
2017-07-27

Angled partial strainer plates for well assembly

#98
20170211361
2017-07-27

IMPROVEMENTS IN AND RELATING TO SCREENS

#99
20170211359
2017-07-27

Well screens and methods to reduce screen plugging

#100
20170089183
2017-03-30

Sand control screen

#101
20170074077
2017-03-16

Over-coupling screen communication system

#102
20170051584
2017-02-23

SAND SCREEN

#103
20170051583
2017-02-23

SAND SCREEN

#104
20170044879
2017-02-16

Sacrificial screen shroud

#105
20170009124
2017-01-12

Stabilizing formation laminae in coal seam wellbores

#106
20160369602
2016-12-22

Sand control screen assemblies with erosion-resistant flow paths

#107
20160341016
2016-11-24

Flow conditioning flow control device

#108
20160333249
2016-11-17

One-step consolidation treatment

#109
20160326851
2016-11-10

Sand control sleeve

#110
20160326848
2016-11-10

WELL SCREEN FOR NON-VERTICAL WELL SYSTEMS

#111
20160298430
2016-10-13

System and method for controlling fluid flow in a downhole completion

#112
20160290110
2016-10-06

Screened communication connector for a production tubing joint

#113
20160273320
2016-09-22

Flow distribution assemblies for distributing fluid flow through screens

#114
20160258256
2016-09-08

Methods of fabricating sand control screen assemblies using three-dimensional printing

#115
20160237792
2016-08-18

INJECTION DISTRIBUTION DEVICE

#116
20160237791
2016-08-18

Deposited material sand control media

#117
20160222767
2016-08-04

Temporarily impermeable sleeve for running a well component in hole

#118
20160168939
2016-06-16

COMBINATION DEBRIS COLLECTION AND VISUAL VALIDATION ASSEMBLY

#119
20160130908
2016-05-12

ADJUSTABLE ORFICE IN FLOW CONTROL DEVICE (ICD)

#120
20160102524
2016-04-14

Inflow control system for use in a wellbore

#121
20160096240
2016-04-07

Subterranean screen assembly manufacturing method

#122
20160084046
2016-03-24

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

#123
20160040516
2016-02-11

HOUSING ASSEMBLIES FOR MOUNTING FLOW CONTROL DEVICES

#124
20160040515
2016-02-11

Downhole sand control assembly with flow control, and method for completing a wellbore

#125
20160032694
2016-02-04

Controlling flow in a wellbore

#126
20160032693
2016-02-04

Production filtering system and methods

#127
20150375144
2015-12-31

Method of assembly for sand screen

#128
20150337633
2015-11-26

Downhole system with filtering and method

#129
20150337627
2015-11-26

Flow rings for regulating flow in autonomous inflow control device assemblies

#130
20150315881
2015-11-05

Over-coupling screen communication system

#131
20150315880
2015-11-05

Wellbore screen

#132
20150308239
2015-10-29

Valve for gravel packing a wellbore

#133
20150308238
2015-10-29

System and method for gravel packing a wellbore

#134
20150300132
2015-10-22

Tubular flow control apparatus and method of packing particulates using a slurry

#135
20150267511
2015-09-24

Drill pipe screens

#136
20150233215
2015-08-20

Wellbore apparatus and method for sand control using gravel reserve

#137
20150226041
2015-08-13

Subterranean well tools with directionally controlling flow layer

#138
20150226040
2015-08-13

Leak-off assembly for gravel pack system

#139
20150218909
2015-08-06

Downhole flow control, joint assembly and method

#140
20150192001
2015-07-09

High-rate injection screen assembly with checkable ports

#141
20150136391
2015-05-21

Gravel packing apparatus having a jumper tube protection assembly

#142
20150075799
2015-03-19

Downhole debris retriever

#143
20150047830
2015-02-19

Downhole filtration tool

#144
20150027726
2015-01-29

Downhole apparatus

#145
20150000897
2015-01-01

Expandable well screen having enhanced drainage characteristics when expanded

#146
20140360718
2014-12-11

SAND FILTER AND METHOD OF MANUFACTURE

#147
20140305641
2014-10-16

Ceramic screen

#148
20140299331
2014-10-09

Expandable device for use in a well bore

#149
20140299310
2014-10-09

Gravel packing apparatus having a rotatable slurry delivery subassembly

#150
20140246205
2014-09-04

Apparatus for downhole water production control in an oil well

#151
20140210307
2014-07-31

Flow induced electrostatic power generator for tubular segments

#152
20140202705
2014-07-24

Flow induced electrostatic power generator for tubular segments

#153
20140131031
2014-05-15

Filtration system and method for a packer

#154
20140110132
2014-04-24

Gravel packing apparatus having a rotatable slurry delivery subassembly

#155
20140110131
2014-04-24

Gravel packing apparatus having a jumper tube protection assembly

#156
20140060816
2014-03-06

Multiple sectioned wire-wrapped screens

#157
20130341006
2013-12-26

Dehydrator screen for downhole gravel packing

#158
20130327526
2013-12-12

Expandable sand screen and method for well casing for thermal oil recovery

#159
20130213667
2013-08-22

Well flow control with multi-stage restriction

#160
20130062269
2013-03-14

Bendable strain relief fluid filter liner, method and apparatus

#161
20130062072
2013-03-14

System and method for stimulating a multi-zone well

#162
20130062062
2013-03-14

System and method for a slotted liner shoe extension

#163
20130008645
2013-01-10

Intelligent well system and method

#164
20130000890
2013-01-03

Multiple sectioned wire-wrapped screens

#165
20120273234
2012-11-01

Flow-induced electrostatic power generator for downhole use in oil and gas wells

#166
20120217005
2012-08-30

METHOD AND APPARATUS FOR REDUCING LINER SLOT PLUGGING TENDENCIES

#167
20120181017
2012-07-19

Expandable device for use in a well bore

#168
20120175104
2012-07-12

FLOW CONTROL SCREEN FOR USE IN OILFIELD EXPLOITATION

#169
20120138287
2012-06-07

Method of manufacturing a well screen

#170
20120132440
2012-05-31

Expandable Screen Assembly and Method of Expanding a Plurality of Screens

#171
20120073801
2012-03-29

Sand Control Screen Assembly Having a Mechanically Attached Screen Jacket

#172
20120048416
2012-03-01

Method and apparatus for strain relief in thermal liners for fluid transfer

#173
20120018146
2012-01-26

Wear-resistant separating device for removing sand and rock particles

#174
20110220347
2011-09-15

Separating device for removing sand and rock particles

#175
20110214855
2011-09-08

Expandable device for use in a well bore

#176
20110180258
2011-07-28

Flow control system with sand screen

#177
20110146831
2011-06-23

Method of fabrication of corrosion resistant oil field tubulars

#178
20110011585
2011-01-20

Apparatus and method for controlling flow of solids into wellbores using filter media containing an array of three dimensional elements

#179
20110005754
2011-01-13

Methods of producing flow-through passages in casing, and methods of using such casing

#180
20100326656
2010-12-30

PATTERN STEAMFLOODING WITH HORIZONTAL WELLS

#181
20100300986
2010-12-02

WELL FILTER

#182
20100236792
2010-09-23

Expanding multiple tubular portions

#183
20100065270
2010-03-18

Filtering device, especially for use as a well screen filter

#184
20100059223
2010-03-11

Shrouded tubular

#185
20100000742
2010-01-07

Method of manufacturing a well screen

#186
20090283271
2009-11-19

Plug protection system and method

#187
20090255686
2009-10-15

Method for providing a temporary barrier in a flow pathway

#188
20090205834
2009-08-20

Adjustable flow control devices for use in hydrocarbon production

#189
20090183873
2009-07-23

Profile control apparatus and method for production and injection wells

#190
20090173497
2009-07-09

Sand control screen assembly and associated methods

#191
20090173490
2009-07-09

Sand control screen assembly and method for use of same

#192
20090084556
2009-04-02

Apparatus for adjustably controlling the inflow of production fluids from a subterranean well

#193
20090078408
2009-03-26

Apparatus for providing a temporary degradable barrier in a flow pathway

#194
20090065206
2009-03-12

Wellbore fluid treatment tubular and method

#195
20090014174
2009-01-15

Use of coated slots for control of sand or other solids in wells completed for production of fluids

#196
20090000786
2009-01-01

Methods of producing flow-through passages in casing, and methods of using such casing

#197
20080289815
2008-11-27

DOWNHOLE SCREEN ASSEMBLY

#198
20080156481
2008-07-03

Ceramic screen

#199
20080134508
2008-06-12

Method to Provide Slots in Pipes

#200
20080115939
2008-05-22

Radial Expansion of Tubular Members

#201
20080105437
2008-05-08

System and method utilizing a compliant well screen

#202
20070227733
2007-10-04

Method of sealing an annulus surrounding a slotted liner

#203
20070119597
2007-05-31

Expanding multiple tubular portions

#204
20070119590
2007-05-31

Apparatus and method for gravel packing

#205
20070114027
2007-05-24

Wellbore gravel packing apparatus and method

#206
20070023190
2007-02-01

Stab guide

#207
20070017675
2007-01-25

Methods and apparatus for completing a well

#208
20060144596
2006-07-06

Well screen

#209
20060137883
2006-06-29

Well screen

#210
20060107514
2006-05-25

Method for coupling and expanding tubing

#211
20060037745
2006-02-23

Expandable device for use in a well bore

#212
20060027376
2006-02-09

Expandable tubing and method

#213
20060027370
2006-02-09

Expandable injector pipe

#214
20050279514
2005-12-22

Methods of placing expandable downhole tubing in a wellbore

#215
20050247457
2005-11-10

Method and apparatus for manufacturing an expandable slotted tube

#216
20050230105
2005-10-20

Well completion with merged influx of well fluids

#217
20050205263
2005-09-22

Self-conforming screen

#218
20050204528
2005-09-22

Method to reduce the width of a slot in a pipe or tube

#219
20050199385
2005-09-15

Connector for expandable well screen

#220
20050178547
2005-08-18

Apparatus and method for gravel packing

#221
20050173130
2005-08-11

Self-conforming screen

#222
20050121232
2005-06-09

Downhole filter

#223
20050103494
2005-05-19

Apparatus and method for treating an interval of a wellbore

#224
20050092363
2005-05-05

Method for providing a temporary barrier in a flow pathway

#225
20050081358
2005-04-21

Radial expansion of tubular members

#226
20050077051
2005-04-14

Radial expansion of tubular members

#227
20050045341
2005-03-03

Radial expansion of tubular members

#228
20050045329
2005-03-03

Intelligent well system and method

#229
20050045324
2005-03-03

Radial expansion of tubular members

#230
20050039928
2005-02-24

Radial expansion of tubular members

#231
20050039927
2005-02-24

Intelligent well system and method

#232
20050029812
2005-02-10

Expandable slotted tubing string and method for connecting such a tubing string

#233
20050028988
2005-02-10

Radial expansion of tubular members

#234
18498789
2024-08-27

Water well submersible pump filter

#235
18455702
2025-05-20

Well system with attached sealant line

#236
17502586
2024-06-18

Method and apparatus for installation and removal of inline filter screens and other objects

#237
17408904
2023-09-26

Well system with attached sealant line

#238
16392066
2022-03-29

Filter sub

#239
16055378
2019-05-07

Method and apparatus for installation and removal of inline filter screens and other objects

#240
15376871
2018-05-01

Screen filter assembly and method therefor

#241
15285813
2018-10-02

Methods and riser pipe for dewatering of fly ash pond or pit