ClassID:

135625

E21B43/129 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Methods or apparatus for controlling the flow of the obtained fluid to or in wells; Lifting well fluids Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole

Recent Application in this class:
#1
20260043327
2026-02-12

Pneumatic Pump Cycle Counter

#2
20260043318
2026-02-12

FLUID LIFTING SYSTEM TO BE PLACED IN A FLUID PRODUCTION WELL, RELATED FLUID PRODUCTION INSTALLATION AND PROCESS

#3
20250270910
2025-08-28

Regenerative Pumping System And Method

#4
20250257637
2025-08-14

LOW-COST DOWNHOLE GAS LIFT SYSTEM FOR NON-GAS LIFT TUBING

#5
20250207574
2025-06-26

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#6
20250092884
2025-03-20

LANDFILL PUMP HAVING METERED CYCLING

#7
20240376809
2024-11-14

SYSTEMS AND METHODS USING A BELLOWS PUMP TO PERFORM OPERATIONS FOR A SUBTERRANEAN FORMATION

#8
20240328291
2024-10-03

SYSTEM, APPARATUS AND METHOD FOR ARTIFICIAL LIFT, AND IMPROVED DOWNHOLE ACTUATOR FOR SAME

#9
20240287883
2024-08-29

METHODS FOR IMPROVING PERFORMANCE OF AUTOMATED COILED TUBING OPERATIONS

#10
20240218864
2024-07-04

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#11
20240209845
2024-06-27

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#12
20240175433
2024-05-30

Fracturing pump arrangement using a plunger with an internal fluid passage

#13
20240093580
2024-03-21

Bearing arrangement for guiding a motor shaft of a vertical turbine pump

#14
20240084681
2024-03-14

CLOUD-BASED MANAGEMENT OF A HYDRAULIC FRACTURING OPERATION IN A WELLBORE

#15
20240076971
2024-03-07

FLOATLESS PUMPS AND CONTROL SYSTEMS

#16
20240068455
2024-02-29

Fracturing pump arrangement using a plunger with an internal fluid passage

#17
20240052732
2024-02-15

HYDRAULICALLY ACTUATED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP SYSTEM FOR PRODUCING FLUIDS FROM A WELLBORE

#18
20240044326
2024-02-08

HYDRAULIC PUMPING SYSTEM

#19
20230250713
2023-08-10

Rodless pump and multi-sealing hydraulic sub artificial lift system

#20
20230193884
2023-06-22

Fracturing pump arrangement using a plunger with an internal fluid passage

#21
20230075447
2023-03-09

Fracturing pump arrangement using a plunger with an internal fluid passage

#22
20230012112
2023-01-12

Ejector manifold and subsurface process to harvest low-pressure natural gas

#23
20220412196
2022-12-29

Heavy oil lifting device and heavy oil lifting method

#24
20220307355
2022-09-29

System, apparatus and method for artificial lift, and improved downhole actuator for same

#25
20220298899
2022-09-22

HYBRID HYDRAULIC GAS PUMP SYSTEM

#26
20220268099
2022-08-25

Lifting hydrocarbons

#27
20220235638
2022-07-28

Sectional pumping apparatus for well case

#28
20220195853
2022-06-23

Fracturing pump with in-line fluid end

#29
20220145847
2022-05-12

Fluid-driven linear motor

#30
20220042401
2022-02-10

Hybrid hydraulic gas pump system

#31
20220025909
2022-01-27

Active accumulator

#32
20220010661
2022-01-13

Rodless pump and multi-sealing hydraulic sub artificial lift system

#33
20210340972
2021-11-04

HYDRAULIC PUMPING SYSTEM WITH PISTON DISPLACEMENT SENSING AND CONTROL

#34
20210301637
2021-09-30

Retrievable hydraulically actuated well pump

#35
20210246894
2021-08-12

DOWNHOLE WELL PUMP ASSEMBLY

#36
20210238970
2021-08-05

Well operation optimization

#37
20210199109
2021-07-01

Pneumatic pump control system

#38
20210198987
2021-07-01

Gas operated, retrievable well pump for assisting gas lift

#39
20210179928
2021-06-17

Heavy oil as fracturing fluid to increase hydraulic fracturing efficiency

#40
20210087912
2021-03-25

Slurry analysis system using flow restriction

#41
20210062628
2021-03-04

Method and apparatus for producing well fluids

#42
20210062627
2021-03-04

Systems and methods for operating downhole inflow control valves to provide sufficient pump intake pressure

#43
20210062626
2021-03-04

Downhole pump and method for producing well fluids

#44
20210040828
2021-02-11

Vacuum generator device through supersonic impulsion for oil wells

#45
20200347706
2020-11-05

Fracturing pump with in-line fluid end

#46
20200240253
2020-07-30

System and method for hydraulically driven underwater pumping

#47
20200224652
2020-07-16

Hydraulic pumping system

#48
20200070067
2020-03-05

Ultrasonic microbubble generation method, apparatus and system

#49
20190360316
2019-11-28

Electric submersible hydraulic lift pump system

#50
20190331117
2019-10-31

Well service pump power system and methods

#51
20190330923
2019-10-31

WELL SERVICE PUMP SYSTEMS AND RELATED METHODS

#52
20190242241
2019-08-08

Steerable Acid Tunneling System

#53
20190218886
2019-07-18

Substance deposition and backflow preventing arrangement and method

#54
20190195059
2019-06-27

Modular subsurface lift engine

#55
20190162205
2019-05-30

SPLIT DIFFUSER

#56
20190145205
2019-05-16

Dual gradient drilling system and method

#57
20190145204
2019-05-16

Dual gradient drilling system and method

#58
20190145203
2019-05-16

Dual gradient drilling system and method

#59
20190120031
2019-04-25

MULTI-FLUID, HIGH PRESSURE, MODULAR PUMP

#60
20190093654
2019-03-28

DOWNHOLE MOTOR-PUMP ASSEMBLY

#61
20190085669
2019-03-21

Active magnetic bearing control for downhole-type system

#62
20190071956
2019-03-07

Artificial lift system with enclosed rod rotator

#63
20190055815
2019-02-21

Energy saving downhole and subsea valve

#64
20190048695
2019-02-14

HYDRAULICALLY POWERED DOWNHOLE PISTON PUMP

#65
20190003473
2019-01-03

Systems and methods for controlling multi-chamber subsea pumps

#66
20180363432
2018-12-20

System, apparatus and method for artificial lift, and improved downhole actuator for same

#67
20180355703
2018-12-13

Steam driven submersible pump

#68
20180347327
2018-12-06

Lift apparatus for driving a downhole reciprocating pump

#69
20180306012
2018-10-25

Lube and bleed casing adaptor

#70
20180306011
2018-10-25

Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore

#71
20180252081
2018-09-06

In-situ replacement of fluids in a well tool

#72
20180230990
2018-08-16

Downhole pump system

#73
20180202241
2018-07-19

Sensorless manifold assembly with pressure-based reversing fluid circuit

#74
20180195506
2018-07-12

Pump system

#75
20180187532
2018-07-05

Retrievable pump systems for wells and methods of use

#76
20180156015
2018-06-07

Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore

#77
20180135620
2018-05-17

Hydraulic artificial lift for driving downhole pumps

#78
20180112509
2018-04-26

Systems and apparatuses for separating wellbore fluids and solids during production

#79
20180112508
2018-04-26

Systems and apparatuses for separating wellbore fluids and solids during production

#80
20180100383
2018-04-12

Systems and apparatuses for separating wellbore fluids and solids during production

#81
20180087536
2018-03-29

Well monitoring and pressure controlled landfill pump

#82
20170363077
2017-12-21

Determining pump-out flow rate

#83
20170321526
2017-11-09

Lift apparatus for driving a downhole reciprocating pump

#84
20170306735
2017-10-26

System, apparatus and method for artificial lift, and improved downhole actuator for same

#85
20170292361
2017-10-12

System and method for extracting gas from a well

#86
20170284178
2017-10-05

ARTIFICIAL LIFT SYSTEM AND AN ASSOCIATED METHOD THEREOF

#87
20170260836
2017-09-14

Position sensing for wellsite pumping unit

#88
20170218738
2017-08-03

Dual-walled coiled tubing with downhole flow actuated pump

#89
20170167229
2017-06-15

Systems and methods for artificial lift subsurface injection and downhole water disposal

#90
20170159415
2017-06-08

Downhole Hydraulic Motor

#91
20170037841
2017-02-09

Hydraulic pumping system with enhanced piston rod sealing

#92
20170037715
2017-02-09

Hydraulic pumping system with detection of fluid in gas volume

#93
20170037714
2017-02-09

Hydraulic pumping system with piston displacement sensing and control

#94
20170037713
2017-02-09

Slant mounted hydraulic pumping system

#95
20170030340
2017-02-02

Valve for a downhole pump

#96
20170022795
2017-01-26

Closed loop hydrocarbon extraction system and a method for operating the same

#97
20170002651
2017-01-05

ROV mountable subsea pump flushing and sampling system

#98
20160369610
2016-12-22

Subsea technique for promoting fluid flow

#99
20160333677
2016-11-17

Omnirise hydromag “variable speed magnetic coupling system for subsea pumps”

#100
20160305227
2016-10-20

System, apparatus and method for artificial lift, and improved downhole actuator for same

#101
20160298432
2016-10-13

Liquefied gas-driven production system

#102
20160258262
2016-09-08

Hydrocarbon production facility, production method and upgrade method

#103
20160251946
2016-09-01

Method and system for optimizing well production

#104
20160195087
2016-07-07

Motor control system

#105
20160186537
2016-06-30

Pump jack system and method

#106
20160177683
2016-06-23

Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore

#107
20160102536
2016-04-14

Hydraulically actuated downhole pump with traveling valve

#108
20160097280
2016-04-07

Artificial lifting system with a progressive cavity pump driven by a progressive cavity motor for hydrocarbon extraction

#109
20160024898
2016-01-28

Oil Well Pump Apparatus

#110
20150354329
2015-12-10

RECIPROCATING DOWNHOLE PUMP

#111
20150300330
2015-10-22

Reciprocating pumps for downhole deliquification systems and pistons for reciprocating pumps

#112
20150300138
2015-10-22

Reciprocating pumps for downhole deliquification systems and fluid distribution systems for actuating reciprocating pumps

#113
20150300137
2015-10-22

Pump Drive Unit for Water, Oil or Other Fluid Extraction

#114
20150292307
2015-10-15

Synchronized pump down control for a dual well unit with regenerative assist

#115
20150285043
2015-10-08

Differential pressure mover

#116
20150275608
2015-10-01

Horizontal vertical deepwater tree

#117
20150198024
2015-07-16

Combined RF heating and pump lift for a hydrocarbon resource recovery apparatus and associated methods

#118
20150198017
2015-07-16

Swing chamber pump (SCP)

#119
20150191984
2015-07-09

System and method for production of a primary fluid, such as oil, from an underground reservoir

#120
20150139816
2015-05-21

HYDRAULIC FLUID PRESSURE CONTROL

#121
20150114644
2015-04-30

Compression-actuated multi-cycle circulation valve

#122
20150114632
2015-04-30

High-Speed, Multi-Power Submersible Pumps and Compressors

#123
20150107820
2015-04-23

SYSTEM AND METHODS FOR REMOVING FLUIDS FROM A SUBTERRANEAN WELL

#124
20150101793
2015-04-16

Pump for extracting water, petroleum, or other fluids

#125
20150027698
2015-01-29

Method of lifting oil from a well

#126
20140367093
2014-12-18

Combined anti-rotation apparatus and pressure test tool

#127
20140332202
2014-11-13

Power pumping system and method for a downhole tool

#128
20140294603
2014-10-02

Synchronized dual well variable stroke and variable speed pump down control with regenerative assist

#129
20140196907
2014-07-17

Hydraulic oil well pumping apparatus

#130
20140127065
2014-05-08

Single and multi-chamber wellbore pumps for fluid lifting

#131
20140127046
2014-05-08

Downhole hydraulic pump

#132
20130333893
2013-12-19

Submersible progressive cavity pump driver

#133
20130294906
2013-11-07

Production tubing and pump driver control lines combination for suspending progressive cavity pump and pump driver in a production assembly

#134
20130284428
2013-10-31

Fluid driven pump for removing debris from a wellbore and methods of using same

#135
20130277064
2013-10-24

Submersible pump systems and methods

#136
20130195685
2013-08-01

Self-cleaning disc valve for piston pump

#137
20130180704
2013-07-18

Oil well pump apparatus

#138
20130020070
2013-01-24

Oil well pump apparatus

#139
20120199359
2012-08-09

Pumping module and system

#140
20120125624
2012-05-24

Ultra-pumps systems

#141
20120093663
2012-04-19

APPARATUS AND SYSTEM TO ACTUATE AND PUMP WELL BORE LIQUIDS FROM HYDROCARBON WELLS

#142
20120034113
2012-02-09

Pumping device for fluids located at the bottom of a drilled well

#143
20120012333
2012-01-19

System and methods for removing fluids from a subterranean well

#144
20110311374
2011-12-22

Submersible pumping system

#145
20110308812
2011-12-22

ARTIFICIAL LIFT SYSTEM

#146
20110247831
2011-10-13

Submersible hydraulic artificial lift systems and methods of operating same

#147
20110232912
2011-09-29

SYSTEM AND METHOD FOR HYDRAULICALLY POWERING A SEAFLOOR PUMP FOR DELIVERING PRODUCED FLUID FROM A SUBSEA WELL

#148
20110164999
2011-07-07

POWER PUMPING SYSTEM AND METHOD FOR A DOWNHOLE TOOL

#149
20110158824
2011-06-30

Subsea technique for promoting fluid flow

#150
20110155384
2011-06-30

Subsea fluid separator

#151
20110061873
2011-03-17

Hydraulically Driven Downhole Pump Using Multi-Channel Coiled Tubing

#152
20110052417
2011-03-03

METHOD OF DRIVING A WELL PUMP

#153
20110042093
2011-02-24

Pumping module and system

#154
20110024102
2011-02-03

Completion system for subsurface equipment

#155
20100300701
2010-12-02

Artificial lift system

#156
20100284828
2010-11-11

Gas-Driven Pumping Device and a Method for Downhole Pumping of a Liquid in a Well

#157
20100270223
2010-10-28

Methods and apparatus for enhancing venturi suction in eductor mixers

#158
20100230112
2010-09-16

Multi-channel, combination coiled tubing strings for hydraulically driven downhole pump

#159
20100230091
2010-09-16

Hydraulically actuated downhole pump with gas lock prevention

#160
20100230089
2010-09-16

Downhole system and an immersion hydraulic machine for extraction of fluids

#161
20100111711
2010-05-06

Downhole electrical submersible pump seal

#162
20100089568
2010-04-15

DEWATERING APPARATUS

#163
20100051282
2010-03-04

Hydraulic pump system for deliquifying low rate gas wells

#164
20090321084
2009-12-31

Liquid rod pump and method

#165
20090285700
2009-11-19

Low rate hydraulic artificial lift

#166
20090151954
2009-06-18

Subsea hydraulic and pneumatic power

#167
20090078422
2009-03-26

Enclosed circulation tool for a well

#168
20090016899
2009-01-15

Oil well pump apparatus

#169
20080308265
2008-12-18

Pumping installation for a gas producing well

#170
20080210436
2008-09-04

Method for delivering a multi phase mixture and pump installation

#171
20080164036
2008-07-10

Artificial lift system

#172
20080149325
2008-06-26

DOWNHOLE OIL RECOVERY SYSTEM AND METHOD OF USE

#173
20080087437
2008-04-17

DOWNHOLE OIL RECOVERY SYSTEM AND METHOD OF USE

#174
20080063544
2008-03-13

Discharge pressure actuated pump

#175
20080006571
2008-01-10

Method and apparatus for treatment of wastewater employing membrane bioreactors

#176
20080003121
2008-01-03

Dewatering apparatus

#177
20080000632
2008-01-03

Dual cylinder lift pump system and method

#178
20080000631
2008-01-03

Dual cylinder lift pump and method of recovering fluids from subsurface formations

#179
20070272416
2007-11-29

Hydraulic downhole oil recovery system

#180
20070204988
2007-09-06

Piston-type water pump

#181
20070193735
2007-08-23

Wellhead assembly for hydraulic pumping system

#182
20070183900
2007-08-09

Submersible pumping system

#183
20070158062
2007-07-12

Zone isolation assembly for isolating and testing fluid samples from a subsurface well

#184
20070039740
2007-02-22

Method and apparatus to pump liquids from a well

#185
20070000670
2007-01-04

Method and apparatus for installing strings of coiled tubing

#186
20060266526
2006-11-30

Submersible pumping system

#187
20060222525
2006-10-05

Eccentric wellhead hydraulic drive unit

#188
20060213666
2006-09-28

Hydraulically driven gas recovery device and method of use

#189
20060151178
2006-07-13

Gas operated pump for hydrocarbon wells

#190
20060124298
2006-06-15

Pumping water from a natural gas well

#191
20060081378
2006-04-20

Gas operated pump for hydrocarbon wells

#192
20060065392
2006-03-30

System and method for crude oil production stemming from natural emanations and leaks from capped oil wells

#193
20060060358
2006-03-23

Hydraulic downhole oil recovery system

#194
20060060357
2006-03-23

Subsea wellhead arrangement for hydraulically pumping a well

#195
20060000616
2006-01-05

Hydraulic downhole oil recovery system

#196
20050173336
2005-08-11

Apparatus for enhancing venturi suction in eductor mixers

#197
20050167116
2005-08-04

Apparatus for production in oil wells

#198
20050150224
2005-07-14

Hydraulic oil well pumping installation

#199
20050135944
2005-06-23

Gas turbine for oil lifting

#200
20050084393
2005-04-21

Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive

#201
20050023199
2005-02-03

Method and apparatus for treatment of wastewater employing membrane bioreactors

#202
20050022998
2005-02-03

Plunger enhanced chamber lift for well installations

#203
20050011649
2005-01-20

Downhole pump assembly and method of recovering well fluids

#204
20050002812
2005-01-06

Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump

#205
17856589
2023-09-26

Surface unit for downhole pump

#206
17652479
2023-08-29

Flow booster cell

#207
16255031
2020-04-21

Downhole peristaltic pump assemblies

#208
15052653
2022-12-27

Systems and methods for analyzing resource production

#209
14828812
2016-01-26

Magnetically coupled expander pump with axial flow path

#210
14680550
2018-08-21

Crude oil production method and equipment