ClassID:

135623

E21B43/127 - 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 drives outside the borehole, e.g. by a rotary or oscillating drive Adaptations of walking-beam pump systems

Recent Application in this class:
#1
20260146526
2026-05-28

System and Method for Monitoring Rod Rotation and Position Using RF Signal Characteristics

#2
20260139554
2026-05-21

SINKER BAR WITH CENTRALIZER

#3
20260063031
2026-03-05

DEVICES, SYSTEMS, AND METHODS FOR DETECTING THE ROTATION OF ONE OR MORE COMPONENTS FOR USE WITH A WELLBORE

#4
20260063030
2026-03-05

SYSTEM AND METHOD TO MONITOR AND CONTROL RECIPROCATING ROD LIFT SYSTEM

#5
20250376918
2025-12-11

Downhole Pump Top Plunger Adapter with Improved Sand Handling Capability

#6
20250375828
2025-12-11

WELDING WIRE REMAINING AMOUNT DETECTION AND WARNING SYSTEM

#7
20250369323
2025-12-04

QUICK CONNECTOR ASSEMBLIES FOR DOWNHOLE SUCKER ROD PUMPS

#8
20250361800
2025-11-27

Self-Adjusting Downhole Sucker Rod Pump Spacing Tool

#9
20250361789
2025-11-27

VALVE ASSEMBLIES, VALVE ASSEMBLIES FOR USE WITH DOWNHOLE COMPONENTS AND RELATED METHODS

#10
20250305379
2025-10-02

Well Tubing Anchor and Catcher Tool Assembly

#11
20250198264
2025-06-19

Artificial Lift System With Under Pumping Mitigation

#12
20250198263
2025-06-19

WELL PUMP CONTROL SYSTEM AND METHOD

#13
20250172055
2025-05-29

METHODS OF FORMING AND RESTRICTING FLUID FLOW WITH A VALVE ASSEMBLY

#14
20250129694
2025-04-24

ANTI-ROTATION DEVICE FOR A ROD ROTATOR OF A RECIPROCATING ROD PUMPING SYSTEM

#15
20250101840
2025-03-27

INTEGRATED CONTROL OF HORIZONTAL AND VERTICAL MOVEMENTS OF A LONG-STROKE PUMPING UNIT

#16
20250084747
2025-03-13

SAND COLLECTOR FOR SUCKER ROD PUMP

#17
20250059872
2025-02-20

DOWNHOLE SEPARATOR

#18
20250012268
2025-01-09

LONG-STROKE PUMPING UNIT

#19
20250012176
2025-01-09

System and Method for Determining Plunger Velocity Using a Downhole Card for Diagnostics and Control of a Rod-Pumped Well

#20
20240392666
2024-11-28

Electric Powered Hydraulic Fracturing Pump System with Single Electric Powered Multi-Plunger Fracturing Pump

#21
20240392664
2024-11-28

Bottom tubing cap for downhole pump systems

#22
20240376814
2024-11-14

Automatic Iteration of Upstroke and Downstroke Damping Factors with Iterative Bisection Method

#23
20240309863
2024-09-19

Hydraulic Powerhouse System For An Oil Well Pumping Unit

#24
20240309749
2024-09-19

NOVEL ROD-PUMP CONTROLLER

#25
20240247653
2024-07-25

Lightweight, Lattice Structure Horsehead for Reciprocating Pump Unit

#26
20240247652
2024-07-25

Equalizer Bearing Assembly having Wedged Retainers

#27
20240229612
2024-07-11

MECHANICAL HOLD DOWN WITH INTERNAL STRAINER

#28
20240218868
2024-07-04

SYSTEM AND METHOD FOR HARNESSING GRAVITY TO GENERATE, LEVERAGE, AND STORE ELECTRICAL ENERGY

#29
20240218815
2024-07-04

RATIOMETRIC SYSTEM FOR AUTONOMOUS LUBRICATION OF PRODUCTION EQUIPMENT

#30
20240167375
2024-05-23

Apparatus for Affixing a Rotation Sensor to a Rod Lift System

#31
20240167369
2024-05-23

TRAVELING VALVE ASSEMBLY FOR RECIPROCATING ROD PUMPS

#32
20240146149
2024-05-02

DIRECT DRIVE MOTOR-BASED REDUCER FOR A BEAM PUMPING UNIT

#33
20240125223
2024-04-18

Sand collector for sucker rod pump

#34
20240110560
2024-04-04

ELECTRIC CYLINDER DRIVING DEVICE AND WALKING BEAM PUMPING UNIT INCLUDING ELECTRIC CYLINDER DRIVING DEVICE

#35
20240102373
2024-03-28

DOWNHOLE GAS SEPARATOR WITH CONCENTRIC SEPARATION RINGS

#36
20240084680
2024-03-14

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#37
20240026771
2024-01-25

METHOD FOR DETECTING THE ROTATION OF A ROD-STRING IN A WELLBORE

#38
20230407862
2023-12-21

Long-stroke pumping unit

#39
20230383641
2023-11-30

COMPUTER-IMPLEMENTED METHOD FOR DETERMINING AN OPERATIONAL PROPERTY OF A DRILL-ROD BOREHOLE PUMP, AND ANALYSIS DEVICE AND PUMP SYSTEM FOR SAME

#40
20230374898
2023-11-23

COMPUTER-IMPLEMENTED METHOD FOR DETERMINING AN OPERATIONAL PROPERTY OF A DRILL-ROD BOREHOLE PUMP, ANALYSIS DEVICE, AND PUMP SYSTEM FOR SAME

#41
20230366308
2023-11-16

COMPUTER-IMPLEMENTED METHOD FOR DETERMINING AN OPERATING PROPERTY OF A PUMPJACK, ANALYSIS DEVICE AND PUMP SYSTEM THEREFOR

#42
20230340864
2023-10-26

Artificial lift system with under pumping mitigation

#43
20230340853
2023-10-26

Oil well stuffing box

#44
20230287771
2023-09-14

Methods for Managing Pump-lifted Wells in Hydrocarbon Fields

#45
20230265844
2023-08-24

Long-stroke pumping unit

#46
20230258045
2023-08-17

Rod coupling remover device

#47
20230203924
2023-06-29

ARRANGEMENT FOR HYDROCARBON EXTRACTION IN OIL WELLS

#48
20230184089
2023-06-15

DEVICES, SYSTEMS, AND METHODS FOR DETECTING THE ROTATION OF ONE OR MORE COMPONENTS FOR USE WITH A WELLBORE

#49
20230184068
2023-06-15

SYSTEM AND METHOD FOR EVALUATING RECIPROCATING DOWNHOLE PUMP DATA USING POLAR COORDINATE ANALYTICS

#50
20230175353
2023-06-08

DART AND CLUTCH ASSEMBLY

#51
20230167712
2023-06-01

Downhole joint rotator

#52
20230146951
2023-05-11

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#53
20230114060
2023-04-13

Stuffing box environmental seal

#54
20230102472
2023-03-30

POWER GENERATION SYSTEM FOR AN ARTIFICIAL LIFT SYSTEM

#55
20230098068
2023-03-30

WELL PUMP CONTROL SYSTEM AND METHOD

#56
20230066565
2023-03-02

ACTUATED STUFFING BOX FOR AN ARTIFICIAL LIFT SYSTEM

#57
20230057971
2023-02-23

Downhole Pump Gas Eliminating Seating Nipple System

#58
20230048753
2023-02-16

Sand collector for sucker rod pump

#59
20230035424
2023-02-02

System, apparatus, and method for maintaining a polishing rod

#60
20220412339
2022-12-29

Rod rotator assembly for well pumping rod strings

#61
20220389806
2022-12-08

DOWNHOLE GAS SEPARATOR

#62
20220341418
2022-10-27

Lubricant structure and lubricant method for belt pumping unit

#63
20220341413
2022-10-27

Rod pumping surface unit

#64
20220333464
2022-10-20

SYSTEMS AND METHODS FOR CATHODIC PROTECTION OF AN OIL AND GAS WELL SYSTEM

#65
20220316314
2022-10-06

WELL SITE MACHINE LEARNING BASED PREDICTIONS

#66
20220290536
2022-09-15

Systems and methods for controlling a vertical pumping unit

#67
20220282584
2022-09-08

Polish rod leveling assembly

#68
20220268109
2022-08-25

STABILIZER FOR INHIBITING SUCKER ROD BUCKLING DURING COMPRESSION MOMENTS IN ARTIFICIAL LIFT WELLS

#69
20220251921
2022-08-11

STUFFING BOX FOR AN ARTIFICIAL LIFT SYSTEM

#70
20220235638
2022-07-28

Sectional pumping apparatus for well case

#71
20220235637
2022-07-28

Pipe connector

#72
20220235636
2022-07-28

ROD ROTATOR ASSEMBLY FOR AN ARTIFICIAL LIFT SYSTEM

#73
20220235616
2022-07-28

Operating tool for an artificial lift system

#74
20220228473
2022-07-21

Sucker rod pump automated control method and system

#75
20220195864
2022-06-23

Optical monitoring and control of pumpjack

#76
20220195847
2022-06-23

Pumpjack having linear alternator

#77
20220178239
2022-06-09

Downhole Pump Gas Eliminating Seating Nipple System

#78
20220178214
2022-06-09

Sucker rod couplings and tool joints with polycrystalline diamond elements

#79
20220154541
2022-05-19

Systems and methods for providing a polished rod alignment tool

#80
20220145719
2022-05-12

Stuffing box environmental seal

#81
20220090480
2022-03-24

Lubricating element for drag reduction in production and transportation of water-cut heavy oil in wellbore

#82
20220090470
2022-03-24

Ball check-valve for linear reciprocating downhole pumps

#83
20220090467
2022-03-24

Pressure actuated downhole device

#84
20220067641
2022-03-03

System and methods for managing oil and gas production equipment

#85
20220065078
2022-03-03

Downhole power generating apparatus

#86
20220056785
2022-02-24

UNIBODY BYPASS PLUNGER WITH INTEGRAL DART VALVE CAGE

#87
20220056769
2022-02-24

Rod jack apparatus

#88
20220042400
2022-02-10

DRIVE FOR DEEP-WELL SUCKER-ROD PUMPING UNIT

#89
20220010669
2022-01-13

MARGINAL WELL MONITORING AND CONTROL SYSTEMS AND METHODS

#90
20220010661
2022-01-13

Rodless pump and multi-sealing hydraulic sub artificial lift system

#91
20210394349
2021-12-23

Air Cannon

#92
20210381359
2021-12-09

Fluid and gas separator

#93
20210363873
2021-11-25

Rod-pump controller

#94
20210355769
2021-11-18

Polish rod leveling assembly

#95
20210355760
2021-11-18

Sliding standoff assembly

#96
20210348453
2021-11-11

Stabilizer for inhibiting sucker rod buckling during compression moments in artificial lift wells

#97
20210324688
2021-10-21

Plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers

#98
20210310480
2021-10-07

Plunger lift state estimation and optimization using acoustic data

#99
20210301635
2021-09-30

Pumping hydrocarbon fluids from a well

#100
20210270109
2021-09-02

SYSTEM AND METHOD FOR PRODUCING AND PROCESSING A MULTIPHASE HYDROCARBON-CONTAINING FLUID FROM A HYDROCARBON-CONTAINING RESERVOIR

#101
20210254616
2021-08-19

LONG-STROKE PUMPING UNIT

#102
20210222688
2021-07-22

Pump systems and methods to improve pump load predictions

#103
20210222524
2021-07-22

System and methodology including strain filter in downhole pumps

#104
20210207461
2021-07-08

System and method for monitoring and adjustment of the well string within a well tubular

#105
20210198989
2021-07-01

Segmented fluid end plunger pump

#106
20210164337
2021-06-03

Rod pump system diagnostics and analysis

#107
20210164328
2021-06-03

Controlling, Monitoring, and Optimizing Production from Multiple Oil and Gas Pumps

#108
20210131056
2021-05-06

Pumping unit bases with driven piles

#109
20210115740
2021-04-22

Tool and method for use in supporting a sucker rod string in an oil or gas well

#110
20210102451
2021-04-08

Electric powered hydraulic fracturing pump system with single electric powered multi-plunger fracturing pump

#111
20210102448
2021-04-08

Adaptor apparatuses and methods for artificial lift systems

#112
20210102442
2021-04-08

Heating and anti-waxing apparatus and device for reducing viscosity under the oil well pump

#113
20210081823
2021-03-18

WELL SITE MACHINE LEARNING BASED ANALYTICS

#114
20210079771
2021-03-18

Reciprocating downhole pump

#115
20210054726
2021-02-25

Method of Producing Hydrocarbon Fluids From Casing

#116
20210040825
2021-02-11

DRIVE FOR DEEP-WELL PUMPING UNIT

#117
20210032966
2021-02-04

Pump jack system

#118
20210017817
2021-01-21

Low friction and high wear resistant sucker rod string

#119
20210003124
2021-01-07

Pump jack with counterbalance

#120
20210002998
2021-01-07

Methods and devices for stress, wear and submergence monitoring in mechanically pumped deviated oil wells

#121
20200408079
2020-12-31

Bearing fault detection for surface pumping units

#122
20200393309
2020-12-17

Polished rod load cell

#123
20200392832
2020-12-17

Two-point polished rod load-sensing system

#124
20200386092
2020-12-10

Dynamic pumpjack load verification

#125
20200355064
2020-11-12

Systems and methods of controlling an electric motor that operates a pump jack

#126
20200347876
2020-11-05

Foldable walking beam for sucker rod pumping systems

#127
20200340310
2020-10-29

Sucker rod guides

#128
20200309112
2020-10-01

Pumping Unit Having Zero-Imbalanced Beam, Lagging Counterweights, and Setback Crank Point

#129
20200308950
2020-10-01

PARTICULATE SEPARATOR FOR PRODUCTION WELLS

#130
20200284105
2020-09-10

Polished rod rotator with height adjuster

#131
20200263531
2020-08-20

Oil-well pump instrumentation device and method

#132
20200263523
2020-08-20

Seal configuration for downhole reciprocating pumps

#133
20200263510
2020-08-20

Systems and methods for providing a polished rod alignment tool

#134
20200232312
2020-07-23

System and method for evaluating reciprocating downhole pump data using polar coordinate analytics

#135
20200232310
2020-07-23

Fluid and gas separator

#136
20200217180
2020-07-09

Hybrid artificial lift system and method

#137
20200217164
2020-07-09

Optical Alignment System for Beam Pumping Unit

#138
20200200643
2020-06-25

SYSTEM FOR SENSING LEAKS IN A STUFFING BOX

#139
20200199986
2020-06-25

CONTROLLED DESCENT CAGED BALL BYPASS PLUNGER

#140
20200190965
2020-06-18

Rod pump position measurement employing wave-based technologies

#141
20200182028
2020-06-11

Automated sucker rod spacing device and associated methods

#142
20200165908
2020-05-28

Downhole sand screen with automatic flushing system

#143
20200157919
2020-05-21

Device and method for prevention of formation of sediments of paraffin and asphaltenes deposits in the pipeline

#144
20200141210
2020-05-07

Hydraulic ball guide for subsurface ball valves

#145
20200123892
2020-04-23

Wireless load position sensor

#146
20200095835
2020-03-26

SYSTEM AND METHOD FOR MONITORING AND ADJUSTMENT OF THE WELL STRING POSITIONING WITHIN A WELL TUBULAR

#147
20200063519
2020-02-27

STUFFING BOX APPARATUS AND RELATED METHODS

#148
20200018151
2020-01-16

Diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems

#149
20200011327
2020-01-09

Wiper ring assembly with energizing member

#150
20200011154
2020-01-09

Streamlined valve assembly for downhole pump of reciprocating pump system

#151
20190376378
2019-12-12

Systems for improving downhole separation of gases from liquids while producing reservoir fluid

#152
20190368284
2019-12-05

Automated end fitting installation system and method

#153
20190353003
2019-11-21

Valve assembly for downhole pump of reciprocating pump system

#154
20190345927
2019-11-14

Pumping unit counterweight balancing

#155
20190338767
2019-11-07

Pumping unit counterweight balancing

#156
20190330964
2019-10-31

Slant well pumping unit

#157
20190273381
2019-09-05

System and method for enhanced efficiencies in electrical power distribution

#158
20190264549
2019-08-29

Method of pumping fluid from a wellbore by a subsurface pump having an interior flow passage in communication with a fluid chamber via a filter positioned in a side wall of a plunger

#159
20190242223
2019-08-08

Oil pumping apparatus without a speed reducer

#160
20190242197
2019-08-08

Low friction and high wear resistant sucker rod string

#161
20190234401
2019-08-01

Long stroke pumping unit

#162
20190234400
2019-08-01

Direct drive pumping unit

#163
20190234192
2019-08-01

Apparatus for transferring a reciprocating movement from a surface machinery to a downhole device and a method of producing well fluids

#164
20190226882
2019-07-25

Fiber optic line for monitoring of well operations

#165
20190218903
2019-07-18

Method and device for measuring surface dynamometer cards and operation diagnosis in sucker-rod pumped oil wells

#166
20190217458
2019-07-18

Air cannon

#167
20190203579
2019-07-04

Apparatus and method for detecting the rotation of a rod-string in a wellbore

#168
20190203578
2019-07-04

Solar powered pressurized electronics enclosure for pumping units

#169
20190186244
2019-06-20

Modular top loading downhole pump with sealable exit valve and valve rod forming aperture

#170
20190169944
2019-06-06

Systems and methods for fluid end monitoring

#171
20190153853
2019-05-23

FLOAT ARRANGEMENT AND SENSOR ARRANGEMENT FOR A PUMP JACK-TYPE WELL

#172
20190153830
2019-05-23

Earphone testing

#173
20190145228
2019-05-16

Electric machine driving method and system under non-conventional work mode of oil pumping unit

#174
20190136638
2019-05-09

METHODS FOR REPLACING PIN ENDS AND REPAIRING COATINGS ON COATED CONTINUOUS SUCKER RODS

#175
20190128112
2019-05-02

Determining geometries of hydraulic fractures

#176
20190128110
2019-05-02

Determining geometries of hydraulic fractures

#177
20190120218
2019-04-25

Tandem motor linear rod pump

#178
20190120217
2019-04-25

Tandem motor linear rod pump

#179
20190120030
2019-04-25

Combined operation method for work modes of walking beam pumping unit

#180
20190100990
2019-04-04

Polished-rod thermal imaging system for preventing failures in the operation of a sucker rod pump

#181
20190093467
2019-03-28

Downhole sand and gas separation system for use with a rod pump

#182
20190085679
2019-03-21

Rod pump gas anchor and separator for horizontal wells and method of use

#183
20190063426
2019-02-28

Long-stroke pumping unit

#184
20190056057
2019-02-21

INTEGRATED BASE ASSEMBLY FOR BEAM PUMPING UNIT

#185
20190055794
2019-02-21

Tool and method for use in supporting a sucker rod string in an oil or gas well

#186
20190040857
2019-02-07

Beam pumping unit with geometry optimized for bearing stress reduction

#187
20190032471
2019-01-31

Systems and methods for measuring loads applied to downhole structures

#188
20190024497
2019-01-24

Plunger lift state estimation and optimization using acoustic data

#189
20180372190
2018-12-27

Belt tensioner for pumpjack

#190
20180371717
2018-12-27

Integral Precast Foundation Base for Pumping Unit

#191
20180363430
2018-12-20

Stuffing box leak containment apparatus

#192
20180340402
2018-11-29

Downhole pump with traveling valve and pilot

#193
20180334892
2018-11-22

SINKER BAR

#194
20180328154
2018-11-15

BOREHOLE RECIPROCATING PUMP ASSEMBLY WITH AN AIR CHAMBER ACTING AS A HYDRAULIC SHOCK ABSORBER FOR THE PUMPED FLUID

#195
20180313176
2018-11-01

Hydraulic pump spacing device and system

#196
20180306004
2018-10-25

Hot Rods

#197
20180305983
2018-10-25

Buckling-resistant sucker rod

#198
20180298744
2018-10-18

Bearing fault detection for surface pumping units

#199
20180298736
2018-10-18

Subsurface reciprocating pump for gassy and sandy fluids

#200
20180283154
2018-10-04

System and method for a centrifugal downhole oil-water separator

#201
20180280834
2018-10-04

Down-hole gas separation system

#202
20180252051
2018-09-06

WIRE ROPE SEGMENT FOR DAMPING TRANSMISSION OF CYCLIC FORCES TO A DOWNHOLE PUMP, AND A SYSTEM FOR PUMPING OIL FROM A WELL USING A WIRE ROPE SEGMENT

#203
20180238138
2018-08-23

Holddown assembly

#204
20180202596
2018-07-19

Rear leg connection for beam pumping unit

#205
20180202255
2018-07-19

Self-aligning stuffing box

#206
20180202241
2018-07-19

Sensorless manifold assembly with pressure-based reversing fluid circuit

#207
20180187531
2018-07-05

Gas Separator Assembly For Generating Artificial Sump Inside Well Casing

#208
20180163485
2018-06-14

Pump rod connection

#209
20180147710
2018-05-31

Air cannon

#210
20180128264
2018-05-10

Apparatus and methods for counterbalancing a pumping unit

#211
20180127943
2018-05-10

Pumping unit bases with driven piles

#212
20180112503
2018-04-26

Subsurface pump for use in well artificial lift operations having an interior flow passage of a plunger being in communication with a fluid chamber via a filter

#213
20180112475
2018-04-26

Polished rod rotator with height adjuster

#214
20180106250
2018-04-19

COATINGS FOR REDUCING WEAR ON ROD PUMP COMPONENTS

#215
20180066652
2018-03-08

Dump valve assembly with spring and method therefor

#216
20180038366
2018-02-08

Method of determining pump fill and adjusting speed of a rod pumping system

#217
20180016889
2018-01-18

Apparatus and method of monitoring a rod pumping unit

#218
20180010431
2018-01-11

Direct drive motor-based walking beam pumping unit

#219
20170370207
2017-12-28

Method and arrangement for operating an extraction in a borehole

#220
20170370200
2017-12-28

BUBBLE ENHANCED DOWNHOLE OIL WATER SEPARATION

#221
20170362923
2017-12-21

Downhole induction heater and coupling system for oil and gas wells

#222
20170329311
2017-11-16

Beam pumping unit and method of operation

#223
20170306745
2017-10-26

Systems and methods for sucker rod pump jack visualizations and analytics

#224
20170292353
2017-10-12

Methods and systems for directly driving a beam pumping unit by a rotating motor

#225
20170268500
2017-09-21

Controller and method of controlling a rod pumping unit

#226
20170268322
2017-09-21

Downhole separation for well production operations

#227
20170248245
2017-08-31

Latch assembly for a pumping system and method therefor

#228
20170234310
2017-08-17

System and method for preventing floating rod effect in a sucker rod pump

#229
20170226832
2017-08-10

Mobilized Tail Bearing Pumpjack

#230
20170219073
2017-08-03

Rod rotator

#231
20170218739
2017-08-03

Method of completing and producing long lateral wellbores

#232
20170218715
2017-08-03

Optical alignment system for beam pumping unit

#233
20170211666
2017-07-27

LOAD REDUCTION DEVICE FOR DEEP WELL PUMPING SYSTEMS AND PUMPING SYSTEM COMPRISING SAID DEVICE

#234
20170211365
2017-07-27

Automatic sucker rod spacing device and methods of using same

#235
20170175732
2017-06-22

Methods and apparatus to calibrate rod pump controllers

#236
20170175486
2017-06-22

Dump valve assembly and method therefor

#237
20170175458
2017-06-22

Sucker rod

#238
20170167612
2017-06-15

Split packing gland inserts and packing retainers for a stuffing box

#239
20170167483
2017-06-15

COATINGS FOR REDUCING WEAR ON ROD PUMP COMPONENTS

#240
20170167237
2017-06-15

Wireline-deployed positive displacement pump for wells

#241
20170167236
2017-06-15

Rod string rotation during well pumping operations

#242
20170152737
2017-06-01

Calculating downhole card in deviated wellbore using parameterized segment calculations

#243
20170151510
2017-06-01

DOWNHOLE LIQUID / GAS SEPARATOR

#244
20170145786
2017-05-25

BACKFLUSH VALVE

#245
20170096884
2017-04-06

Downhole pump with controlled traveling valve

#246
20170082183
2017-03-23

Mechanism and system for rotating an elongate member of an oil pump

#247
20170081957
2017-03-23

Methods and systems for assessing productivity of a beam pumped hydrocarbon producing well

#248
20170074080
2017-03-16

Subterranean pump with pump cleaning mode

#249
20170058654
2017-03-02

Gas separator assembly for generating artificial sump inside well casing

#250
20170058635
2017-03-02

Method and apparatus for preventing gas lock/gas interference in a reciprocating downhole pump

#251
20170052078
2017-02-23

Solar battery wireless load cell adapter

#252
20170044888
2017-02-16

Connector and gas-liquid separator for combined electric submersible pumps and beam lift or progressing cavity pumps

#253
20170037845
2017-02-09

Controller and method of controlling a rod pumping unit

#254
20170030348
2017-02-02

Methods and apparatus for pairing rod pump controller position and load values

#255
20170030175
2017-02-02

Stimulation of Packerless Wells for Enhanced Oil Recovery

#256
20170030170
2017-02-02

Control system and method of controlling a rod pumping unit

#257
20170030163
2017-02-02

Dump valve assembly and method therefor

#258
20170022987
2017-01-26

Plunger apparatus

#259
20170022794
2017-01-26

Method and apparatus for removing liquid from a gas producing well

#260
20170016313
2017-01-19

Diagnostics of downhole dynamometer data for control and troubleshooting of reciprocating rod lift systems

#261
20170016311
2017-01-19

DOWNHOLE GAS SEPARATOR APPARATUS

#262
20170002636
2017-01-05

DETECTION AND MITIGATION OF DETRIMENTAL OPERATING CONDITIONS DURING PUMPJACK PUMPING

#263
20170002635
2017-01-05

Intra-stroke cycle timing for pumpjack fluid pumping

#264
20160369574
2016-12-22

Sinker bar

#265
20160369572
2016-12-22

METHODS FOR REPLACING PIN ENDS AND REPAIRING COATINGS ON COATED CONTINUOUS SUCKER RODS

#266
20160363116
2016-12-15

Dual completion linear rod pump

#267
20160354942
2016-12-08

Rod coating stripper

#268
20160348758
2016-12-01

PUMPJACK WITH TORQUE-BALANCED GEARBOX

#269
20160312601
2016-10-27

Fluid level determination apparatus and method of determining a fluid level in a hydrocarbon well

#270
20160305200
2016-10-20

Tool and method for use in supporting a sucker rod string in an oil or gas well

#271
20160298400
2016-10-13

Pipe connector

#272
20160290074
2016-10-06

Hydraulic pump spacing device and system

#273
20160281907
2016-09-29

ELEVATED EQUIPMENT ASSEMBLIES, EQUIPMENT-SUPPORTING PLATFORMS, AND RELATED METHODS

#274
20160281478
2016-09-29

Stuffing box leak containment apparatus

#275
20160245276
2016-08-25

Long-stroke pumping unit

#276
20160237796
2016-08-18

Diversion plunger for reciprocating rod pump

#277
20160237765
2016-08-18

Well rod string penetration adjustment apparatus and method

#278
20160222957
2016-08-04

Long stroke pumping unit

#279
20160177940
2016-06-23

Method and systems for enhancing flow of a fluid induced by a rod pumping unit

#280
20160138949
2016-05-19

Solar battery wireless integrated load cell and inclinometer

#281
20160138576
2016-05-19

Mechanism and system for rotating an elongate member of an oil pump

#282
20160131128
2016-05-12

Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string

#283
20160130919
2016-05-12

Downhole pumping assembly and a downhole system

#284
20160123124
2016-05-05

Dual horsehead block and tackle pumping unit

#285
20160102542
2016-04-14

Systems and methods for real-time monitoring of downhole pump conditions

#286
20160084049
2016-03-24

Mechanically actuated traveling valve

#287
20160084026
2016-03-24

Thermal compensating tubing anchor for a pumpjack well

#288
20160076362
2016-03-17

Data communications system

#289
20160069167
2016-03-10

DOWNHOLE GAS RELEASE APPARATUS

#290
20160061013
2016-03-03

Borehole reciprocating pump assembly with an air chamber acting as a hydraulic shock absorber for the pumped fluid

#291
20160060969
2016-03-03

Sucker rod apparatus and method

#292
20160054123
2016-02-25

Solar battery wireless inclinometer

#293
20160010640
2016-01-14

Pressure relief mechanism for linear actuator well pump

#294
20160003236
2016-01-07

Methods and apparatus to determine operating parameters of a pumping unit for use with wells

#295
20150377006
2015-12-31

Stress calculations for sucker rod pumping systems

#296
20150376996
2015-12-31

Anti-gas lock valve for a reciprocating downhole pump

#297
20150376995
2015-12-31

Modular top loading downhole pump with sealable exit valve and valve rod forming aperture

#298
20150337636
2015-11-26

Technique for production enhancement with downhole monitoring of artificially lifted wells

#299
20150322755
2015-11-12

Subterranean pump with pump cleaning mode

#300
20150308242
2015-10-29

Method for monitoring and optimizing the performance of a well pumping system