ClassID:

135556

E21B37/06 - CPC Classification

Classification description:

Methods or apparatus for cleaning boreholes or wells using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances

Recent Application in this class:
#1
20260139570
2026-05-21

System for Preventive Inhibition of Scaling in Oil Wells and Process for Preventive Inhibition of Scaling in Oil Wells

#2
20260139569
2026-05-21

METHOD FOR INHIBITING FORMATION OF SCALE IN SUBTERRANEAN GEOLOGICAL FORMATION

#3
20260139182
2026-05-21

FILTER CAKE REMOVAL COMPOSITIONS AND RELATED WELLBORE METHODS

#4
20260132701
2026-05-14

HYDRATE MANAGEMENT METHOD

#5
20260132329
2026-05-14

NANOPARTICLES AND ABSORBENT POLYMER WELLBORE CLEANOUT COMPOSITIONS AND METHODS OF USE THEREOF

#6
20260103964
2026-04-16

ADVANCED MANAGEMENT OF ARTIFICIAL LIFT SYSTEMS IN SANDY APPLICATIONS

#7
20260098202
2026-04-09

ADDITIVES FOR ENHANCING WEAR CONTROL PERFORMANCE OF OILFIELD CORROSION INHIBITORS

#8
20260098200
2026-04-09

ASPHALTENE AND PARAFFIN WAX DEPOSIT REMOVAL WITH SILICA NANOPARTICLES

#9
20260078654
2026-03-19

DISSOLUTION OF TITANIUM-IRON OXIDES AND IRON OXIDES IN A WELLBORE

#10
20260055693
2026-02-26

SCALE CONTROL IN OILFIELD PRODUCED WATERS

#11
20260049537
2026-02-19

SCALE TREATMENT IN A HETEROGENEOUS RESERVOIR USING A NON-NEWTONIAN FLUID

#12
20260049220
2026-02-19

COATED OIL OR GAS OPERATION COMPONENTS THAT DEMONSTRATE REDUCED FOULING AND METHODS OF INHIBITING FOULING OF AN OIL OR GAS OPERATION COMPONENT

#13
20260042956
2026-02-12

METHOD FOR SINGLE-STAGE TREATMENT OF SILICEOUS SUBTERRANEAN FORMATIONS

#14
20260042953
2026-02-12

APPLICATION OF ORGANIC OXIDIZER AND ENZYME COMBINATION AS BREAKER FLUID FOR FILTER CAKE CLEANUP

#15
20260015271
2026-01-15

METHOD FOR IMPROVING CALCIUM CARBONATE SCALE INHIBITOR EFFICIENCY

#16
20250389171
2025-12-25

DUAL-ACTING DELAYED FILTERCAKE BREAKER FLUID

#17
20250382517
2025-12-18

FILTER CAKE REMOVAL COMPOSITIONS AND RELATED WELLBORE METHODS

#18
20250376912
2025-12-11

MACHINE LEARNING FRAMEWORK FOR TREATING AND PREVENTING SCALE FORMATION

#19
20250376615
2025-12-11

FILTER CAKE REMOVAL REACTIVE TREATMENT FLUID WITH CHELATING AGENT AND VISCOELASTIC SURFACTANT AND METHODS OF USING SAME

#20
20250376614
2025-12-11

FILTER CAKE REMOVAL TREATMENT FLUID WITH CHELATING AGENT AND VISCOELASTIC SURFACTANT

#21
20250361795
2025-11-27

Inhibiting Microbial Activity in a Subsurface Formation

#22
20250354966
2025-11-20

PREDICTION OF THE WAX APPEARANCE TEMPERATURE BY CORRELATION WITH CRUDE OIL BIOMARKERS

#23
20250354049
2025-11-20

CORROSION-INHIBITING AGENTS FOR REDUCING DISSOLVED OXYGEN CONCENTRATIONS WITHIN UPSTREAM OILFIELD SYSTEMS

#24
20250333635
2025-10-30

OXIDIZER ENHANCED EMULSIFIED SOLVENT SYSTEMS TO DISSOLVE AND REMOVE TAR

#25
20250333634
2025-10-30

PACKER FLUIDS INCLUDING ETHYLENE GLYCOL

#26
20250327375
2025-10-23

WELLBORE TREATMENT TO REMOVE DAMAGE AND INCREASE PRODUCTION

#27
20250327374
2025-10-23

SPECIALIZED TREATMENT OF BIOFILMS FOUND IN RELIEF WELLS OF DAMS AND LEVEES USING CHLORINE GAS INFUSION

#28
20250304849
2025-10-02

MIXTURES FOR INHIBITING ASPHALTENE DEPOSITION

#29
20250297154
2025-09-25

COMPOSITION AND METHOD FOR IMPROVING THE PRODUCTION OF PETROLEUM HYDROCARBONS

#30
20250297153
2025-09-25

ADDITIVES FOR WELL TREATMENT, METHODS FOR PREPARING WELL TREATMENT COMPOSITION USING THESE ADDITIVES, AND APPLICATIONS OF SAID COMPOSITION

#31
20250290389
2025-09-18

ORGANIC ESTERS WITH ELECTRON WITHDRAWING GROUPS FOR USE IN SUBTERRANEAN FORMATIONS

#32
20250282988
2025-09-11

SPACER FLUIDS CONTAINING SWELLABLE ABRASIVE PARTICLES

#33
20250270899
2025-08-28

ELECTRIC VALVE FOR CONTROLLING THE SCALING OF CONTROL DEVICES IN A PRODUCTION STRING IN A WELL AND A METHOD FOR CONTROLLING THE SCALING USING SAID ELECTRIC VALVE

#34
20250263993
2025-08-21

EXTENDED CHEMICAL TREATMENT IN SUBTERRANEAN WELLS

#35
20250257257
2025-08-14

METHOD OF IMPROVING INJECTION PRESSURE AND ASPHALTENE REMEDIATION

#36
20250250885
2025-08-07

ASSISTED AUTONOMOUS TREATMENT SYSTEM AND PROCESS IN PRE-SALT PRODUCTION PLATFORMS, AND THEIR USES

#37
20250243731
2025-07-31

METHOD FOR DOWNHOLE SEQUESTRATION OF CARBON DIOXIDE IN THE FORM OF GAS HYDRATE

#38
20250243401
2025-07-31

FOAMED ACID SYSTEM STABILIZED BY TWO DIMENSIONAL-GRAPHENE AND SURFACTANT COMPOSITE FOR FRACTURING APPLICATION

#39
20250237117
2025-07-24

SYSTEM AND METHOD FOR ISOLATION AND CHEMICAL INJECTION IN A COMPLETION STRING OF OIL WELLS WITH OPEN INTERVALS

#40
20250213998
2025-07-03

BAND-PASS FILTER

#41
20250188341
2025-06-12

METHODS AND SYSTEMS ASSOCIATED WITH IMPROVED ESTIMATED ULTIMATE RECOVERY (EUR) ADDITIVE THROUGH PROPPANT PACKS

#42
20250163313
2025-05-22

Activator for plain and foamed exothermic reaction in a wellbore

#43
20250163312
2025-05-22

METHOD OF IMPROVING INJECTION PRESSURE AND ASPHALTENE REMEDIATION

#44
20250145881
2025-05-08

COMPOSITIONS AND METHODS FOR GAS LIFTED WELL DELIQUIFICATION

#45
20250145880
2025-05-08

GRAPHENE BASED MATERIAL FOR CORROSION INHIBITION

#46
20250136488
2025-05-01

Extended- and Multimodal-Release Compositions

#47
20250129286
2025-04-24

SCALE CONTROL IN PRODUCTION FLUIDS

#48
20250129285
2025-04-24

NYLON 66 AS A HIGH TEMPERATURE DIVERTER MATERIAL

#49
20250109654
2025-04-03

MAINTAINING A TUBING HANGER PROFILE

#50
20250101834
2025-03-27

INJECTING A CHEMICAL INHIBITOR INTO A WELLBORE

#51
20250092761
2025-03-20

FOAMED SQUEEZE TREATMENT IN WELLS

#52
20250084300
2025-03-13

RADIATION ACTIVATED WELL TREATMENT

#53
20250075120
2025-03-06

Metal sulfide scale dissolver for oilfield application

#54
20250067148
2025-02-27

CLEANOUT TOOLS AND RELATED METHODS OF OPERATION

#55
20250059854
2025-02-20

ENCAPSULATED INTERNAL FILTER CAKE BREAKER

#56
20250059436
2025-02-20

ENCAPSULATION OF OILFIELD CHEMICALS FOR ON-DEMAND TRIGGERED RELEASE

#57
20250043660
2025-02-06

Organic Esters With Electron Withdrawing Groups For Use In Subterranean Formations

#58
20250027504
2025-01-23

ELECTRICAL SUBMERSIBLE MOTOR PROTECTING SYSTEM AND METHOD WITH CHEMICAL CHAMBER

#59
20240426550
2024-12-26

DRYING PILL FOR PIPELINE OPERATIONS

#60
20240426193
2024-12-26

Downhole scale removal tool

#61
20240400889
2024-12-05

FOAMED ACID SYSTEM STABILIZED BY TWO DIMENSIONAL-GRAPHENE AND SURFACTANT COMPOSITE FOR FRACTURING APPLICATION

#62
20240392639
2024-11-28

Side pocket mandrel for metered chemical injection

#63
20240385103
2024-11-21

MICROSCOPIC AND MACROSCOPIC EVALUATION METHOD FOR DUAL-EFFECT HYDRATE INHIBITOR

#64
20240376794
2024-11-14

System and method for milling past wellbore restrictions

#65
20240376369
2024-11-14

Application of naphthenic imidazoline in inhibiting formation of natural gas hydrates and composition containing same

#66
20240328302
2024-10-03

Scaling and plugging detection in artificial lift application

#67
20240295162
2024-09-05

PROCESSES AND APPARATUS FOR THE REMOVAL OF DEBRIS DURING DOWNHOLE OPERATIONS

#68
20240271505
2024-08-15

Systems and methods of production tubing chemical injection

#69
20240263777
2024-08-08

Steam generation system with subcooled water spray for wellbore steam injection

#70
20240263543
2024-08-08

GEOTHERMAL WELL STIMULATION AND SILCA BASED DEPOSIT REMOVAL

#71
20240254381
2024-08-01

USE OF PERCITRIC ACID IN OIL- AND GAS-FIELD OPERATIONS

#72
20240229606
2024-07-11

SHALE INHIBITOR ADDITIVES, WELLBORE FLUIDS COMPRISING SAID ADDITIVES, AND METHODS OF USING SAID FLUIDS

#73
20240229605
2024-07-11

METHOD FOR APPLYING THE SCALE INHIBITOR TO COMPLETION FLUIDS DURING INJECTIVITY TEST OPERATIONS

#74
20240228862
2024-07-11

Composition and Method for Improving the Production of Petroleum Hydrocarbons

#75
20240228860
2024-07-11

COMBINED TREATMENT PROCESS FOR REMOVING AND INHIBITING SCALE

#76
20240218235
2024-07-04

USE OF MICROCAPSULES CONTAINING ACIDS IN ITS INTERIOR AND METHOD OF TREATMENT USING A SCALE INHIBITOR ACTIVATED BY SAID MICROCAPSULES

#77
20240200425
2024-06-20

Polymer gel packs for wellhead corrosion mitigation

#78
20240191602
2024-06-13

Oleophobic and hydrophobic applications for downhole tools

#79
20240183261
2024-06-06

ACID CLEANING SYSTEM AND METHOD

#80
20240183259
2024-06-06

PROCESSES FOR CHEMICAL DOSING PRIOR TO THE PAD

#81
20240174912
2024-05-30

REGENERATING SOLVENT MIXTURES THAT ARE USED FOR ELEMENTAL SULFUR REMOVAL WITHIN HYDROCARBON WELLS

#82
20240151121
2024-05-09

SYSTEMS AND METHODS FOR DELIVERING DEGRADABLE POLYESTER DURING GRAVEL PACKING

#83
20240141756
2024-05-02

SYSTEMS AND METHODS TO DEPLOY A CHEMICAL INHIBITOR IN AN OIL OR GAS WELL

#84
20240133268
2024-04-25

Method for applying the scale inhibitor to completion fluids during injectivity test operations

#85
20240124761
2024-04-18

Graphene based material for corrosion inhibition

#86
20240101891
2024-03-28

METHOD FOR SINGLE-STAGE TREATMENT OF SILICEOUS SUBTERRANEAN FORMATIONS

#87
20240093082
2024-03-21

Aqueous fluid compositions and barite scale removal therewith

#88
20240067863
2024-02-29

Methods and systems to reduce scale formation

#89
20240052725
2024-02-15

CHEMICAL STICK RECEIVING PRESSURE VESSEL

#90
20240026755
2024-01-25

FLARELESS WELL INTERVENTION

#91
20240002718
2024-01-04

TREATMENT CHEMICAL CARTRIDGES AND METHODS OF USING THE SAME

#92
20230407726
2023-12-21

Assisted autonomous treatment system and process in pre-salt production platforms, and their uses

#93
20230399938
2023-12-14

REAL-TIME SCALE PRECIPITATION PREDICTION AND CONTROL SYSTEMS AND METHODS

#94
20230392475
2023-12-07

Downhole scale mitigation component

#95
20230374367
2023-11-23

Electric scale control with metal electrodes

#96
20230366296
2023-11-16

Methods for transporting scale removal agents into a well

#97
20230358116
2023-11-09

DOSING CHEMICALS WITHING A WELLBORE

#98
20230357625
2023-11-09

Injection well cleaning fluids and related methods

#99
20230348775
2023-11-02

Organic sludge targeted removal using nitro-activated carbon composite and acidified solution of ammonium chloride

#100
20230332038
2023-10-19

Multi-Functional Compositions Comprising Concentrated Acids for Enhanced Oil and Gas Recovery

#101
20230313651
2023-10-05

TUBULAR FOR DOWNHOLE USE

#102
20230313644
2023-10-05

Monitoring Scale Inhibitor Treatment

#103
20230313023
2023-10-05

Removal of filter cake

#104
20230313022
2023-10-05

Oxidizing gasses for carbon dioxide-based fracturing fluids

#105
20230272697
2023-08-31

System and methodology for chemical dispersion within a wellbore

#106
20230272695
2023-08-31

Cleanout tools and related methods of operation

#107
20230272263
2023-08-31

Compositions and Methods for Paraffin Liquefaction and Enhanced Oil Recovery Using Concentrated Acids

#108
20230265742
2023-08-24

DEVICE FOR TREATING A BOTTOM-HOLE FORMATION OF A WELLBORE

#109
20230250329
2023-08-10

Imidazoline-derived compounds and use as natural gas hydrate inhibitors

#110
20230235646
2023-07-27

Optimizing scale management at the subsurface for improved well performance

#111
20230227714
2023-07-20

Corrosion inhibiting acid mixture containing monoamine / diamine and method of inhibiting corrosion in acid treatment

#112
20230212451
2023-07-06

Polymer Matrix Particles for Inhibiting Scale Formation in Oil and Gas Wells

#113
20230183552
2023-06-15

Foamed scale removal and inhibition method for subterranean formation

#114
20230183549
2023-06-15

Compositions and methods for reducing injection pressure in resource recovery operations

#115
20230174845
2023-06-08

Filter cake removal compositions and methods of making and using same

#116
20230167716
2023-06-01

Actuation of downhole devices

#117
20230167352
2023-06-01

Filter cake removal compositions and methods of making and using same

#118
20230160292
2023-05-25

HORIZONTAL WELL PRODUCTION METHOD WITH UNIFORM FLOW

#119
20230160291
2023-05-25

Slickwater hydraulic fracturing with exothermic reactants

#120
20230160281
2023-05-25

Enhanced scale inhibitor squeeze treatment using a chemical additive

#121
20230159814
2023-05-25

Multifunctional composition for enhanced oil recovery, improved oil quality and prevention of corrosion

#122
20230132051
2023-04-27

Coupling agents for use in corrosion inhibiting compositions

#123
20230130247
2023-04-27

Corrosion inhibitor

#124
20230129995
2023-04-27

System and method for controlling a chemical dosage

#125
20230127921
2023-04-27

Method for removing fouling using carbonic acid

#126
20230110987
2023-04-13

Method of removing non-aqueous drilling mud with banana containing fluid

#127
20230108767
2023-04-06

STATIC CHEMICAL INHIBITOR SYSTEM FOR OFF-PLOT PIPING IMMUNITY

#128
20230106902
2023-04-06

Remote and autonomous chemical treatment system for application in producing wells of offshore platforms

#129
20230069858
2023-03-09

Composition and method for improving the production of petroleum hydrocarbons

#130
20230056620
2023-02-23

Single-fluid mixed scale dissolution

#131
20230043123
2023-02-09

Method for the combined application of scale remover and inhibitor

#132
20230041390
2023-02-09

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

#133
20230036144
2023-02-02

Well tubing/casing corrosion deposits descaling model

#134
20230009732
2023-01-12

System for evaluation of the precipitation, adhesion and inorganic scale

#135
20230002667
2023-01-05

COMBINED TREATMENT PROCESS FOR REMOVING AND INHIBITING SCALE

#136
20220410223
2022-12-29

SYSTEM FOR UNBLOCKING OR CLEANING DUCTS BY MEANS OF A CONTROLLED LOCAL REACTION

#137
20220389797
2022-12-08

Method of remote divergence for wells equipped with intelligent completion

#138
20220372848
2022-11-24

System and method for use of desulphated injection water from offshore platforms for utilization in inhibition squeezes

#139
20220349299
2022-11-03

ACROLEIN LEAK DETECTION AND ALERT SYSTEM

#140
20220341305
2022-10-27

SYSTEMS AND METHODS FOR CATHODIC PROTECTION OF HYDRAULIC FRACTURING PUMP SYSTEMS

#141
20220341291
2022-10-27

METHOD FOR REMOVING SCALE FROM A SUBSEA MANIFOLD

#142
20220333472
2022-10-20

Methods for stimulation of hydrocarbon-bearing formations while inhibiting corrosion of metal surfaces contacted by acid solutions used in stimulation

#143
20220325168
2022-10-13

Methods and systems associated with improved estimated ultimate recovery (EUR) additive through proppant packs

#144
20220275266
2022-09-01

Spacer fluids containing swellable abrasive particles

#145
20220259484
2022-08-18

Multi-functional compositions comprising concentrated acids for enhanced oil and gas recovery

#146
20220243560
2022-08-04

Well cleaning tools and related methods of cleaning wells in oil and gas applications

#147
20220243115
2022-08-04

Injection well cleaning fluids and related methods

#148
20220234009
2022-07-28

Chemical injection and mixing device

#149
20220213783
2022-07-07

Continuous water pressure measurement in a hydrocarbon reservoir

#150
20220213780
2022-07-07

Determining asphaltene deposition in a flowline

#151
20220213376
2022-07-07

Oxidizing gasses for carbon dioxide-based fracturing fluids

#152
20220177770
2022-06-09

Bio-derived complex for oil and gas well remediation

#153
20220162495
2022-05-26

Scale inhibition using star polymers

#154
20220145727
2022-05-12

Cleanout tools and related methods of operation

#155
20220136369
2022-05-05

Method for preventing saline scale in low-activity, aqueous-phase reservoir wells and its use

#156
20220127514
2022-04-28

Calcite scale control agent for geothermal wells

#157
20220120159
2022-04-21

Enhanced scale inhibitor squeeze treatment using a chemical additive

#158
20220112799
2022-04-14

MULTI-OBJECTIVE OPTIMIZATION ON MODELING AND OPTIMIZING SCALING AND CORROSION IN A WELLBORE

#159
20220090468
2022-03-24

Pressure regulating check valve

#160
20220081609
2022-03-17

Composition and method for improving the production of petroleum hydrocarbons

#161
20220073806
2022-03-10

High density, low TCT divalent brines and uses thereof

#162
20220065082
2022-03-03

Systems and methods to chemically liven dead wells

#163
20220065075
2022-03-03

Method of removing non-aqueous drilling mud with banana containing fluid

#164
20220049580
2022-02-17

Process control system and method for oil and/or gas production and transportation systems

#165
20220049565
2022-02-17

Acid wash system for wireline and slickline

#166
20220042403
2022-02-10

Method and system for enhanced oil recovery using pumped liquid phase propane and liquid phase butane in an adjustable ratio

#167
20220041917
2022-02-10

Polymer dispersions for wax inhibition during stimulation treatment

#168
20220034200
2022-02-03

Nonresident system and method for depressurising subsea apparatus and lines

#169
20220025735
2022-01-27

REDUCING ASPHALTENES IN PRODUCED FLUIDS FROM A WELLBORE

#170
20220025734
2022-01-27

Mandril assembly for chemical injection in oil wells

#171
20220025246
2022-01-27

Hydrocarbon based carrier fluid

#172
20220010654
2022-01-13

Downhole scale and corrosion mitigation

#173
20220003065
2022-01-06

APPARATUS, SYSTEMS AND METHOD FOR OIL AND GAS OPERATIONS

#174
20210396104
2021-12-23

Hydrocarbon well stimulation based on skin profiles

#175
20210363406
2021-11-25

Polymer matrix particles for inhibiting scale formation in oil and gas wells

#176
20210348489
2021-11-11

Chemical injection system for completed wellbores

#177
20210348462
2021-11-11

Chemical injection system for completed wellbores

#178
20210348048
2021-11-11

Microemulsions And Uses Thereof

#179
20210340850
2021-11-04

Method for forming a sleeve for insulating a joint of downhole tubing

#180
20210340426
2021-11-04

Temporary blockage of fluid boundary between higher and lower fluid conductivity formations

#181
20210317732
2021-10-14

Multi stage chemical injection

#182
20210317358
2021-10-14

METHODS AND COMPOSITIONS FOR TREATING HALITE

#183
20210310344
2021-10-07

Removal of water blockage in tight gas reservoir using thermochemical fluids

#184
20210293141
2021-09-23

Chemical injection system for a resource extraction system

#185
20210285306
2021-09-16

Robotic pigging tool

#186
20210269344
2021-09-02

Iron sulfide scale inhibition in an oil production system

#187
20210253936
2021-08-19

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#188
20210246749
2021-08-12

Tool for manipulating a target

#189
20210246354
2021-08-12

Formulation and method for dissolution of metal sulfides, inhibition of acid gas corrosion, and inhibition of scale formation

#190
20210238961
2021-08-05

Hydrocarbon flowline corrosion inhibitor overpressure protection

#191
20210230478
2021-07-29

PARTICULATE COMPOSITIONS CONTAINING OIL FIELD CHEMICALS

#192
20210222517
2021-07-22

Geothermal well stimulation and silca based deposit removal

#193
20210215578
2021-07-15

Method for treating a liquid sample in order to remove interference by iron

#194
20210207019
2021-07-08

Method of removing iron-containing scale from a wellbore, pipe, or surface using a biodegradable descaler solution

#195
20210207018
2021-07-08

Hyperbranched Polymers For Subterranean Umbilical Applications

#196
20210207017
2021-07-08

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#197
20210198563
2021-07-01

Oil field chemical-carrying material and process for making the same

#198
20210198561
2021-07-01

Modified acid compositions as alternatives to conventional acids in the oil and gas industry

#199
20210179925
2021-06-17

Methods for paraffin removal and extended post-primary oil recovery

#200
20210148212
2021-05-20

TREATMENT SYSTEMS AND METHODS USING ENCAPSULATED CORROSIVE FLUIDS

#201
20210148193
2021-05-20

Hydrocarbon flowline corrosion inhibitor overpressure protection

#202
20210148174
2021-05-20

Force transferring wellbore connector

#203
20210147743
2021-05-20

Methods of altering the wettability of surfaces to enhance hydrocarbon production

#204
20210140269
2021-05-13

Methods for diversion and controlling fluid-loss using formate brine compositions

#205
20210123324
2021-04-29

Predicting downhole mechanical cleaning efficiency in wellbore walls during wellbore fluids displacements

#206
20210108488
2021-04-15

Apparatus, method, and program for estimating a state of a natural resource to be extracted

#207
20210108146
2021-04-15

ADDITIVE MANAGEMENT SYSTEM

#208
20210095563
2021-04-01

Managing corrosion and scale buildup in a wellbore

#209
20210095190
2021-04-01

Rotary steerable drilling tool and method

#210
20210079776
2021-03-18

Acid stimulation methods

#211
20210079290
2021-03-18

Amidodiamine corrosion inhibitors

#212
20210079289
2021-03-18

Metal sulfate scale dissolution

#213
20210054722
2021-02-25

DEVICE FOR TREATING A BOTTOM-HOLE FORMATION WELLBORE

#214
20210054713
2021-02-25

Apparatus, systems and methods for oil and gas operations

#215
20210024814
2021-01-28

Oxidizers for carbon dioxide-based fracturing fluids

#216
20210024812
2021-01-28

Organic salts of oxidizing anions as energetic materials

#217
20210024808
2021-01-28

Oxidizing gasses for carbon dioxide-based fracturing fluids

#218
20210002983
2021-01-07

CHEMICALLY TREATED SUBSTRATE STRIPS IN SCREENS FOR OPEN HOLE GRAVEL PACKING AND STAND ALONE SCREENS

#219
20210002541
2021-01-07

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Multi-layer coating for plunger and/or packing sleeve

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NANOSIZED SCALE INHIBITORS FOR INCREASING OILFIELD SCALE INHIBITION TREATMENT LIFETIME

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Method for paraffin inhibiting

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CALCIUM CARBONATE SCALE PREDICTION AND INHIBITION IN HYDROCARBON WELLS USING MACHINE LEARNING

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Multifunctional composition for enhanced oil recovery, improved oil quality and prevention of corrosion

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In situ decontamination of downhole equipment

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EXTRACTION METHODS AND SYSTEMS FOR RECOVERY OF OIL FROM RESERVOIRS CONTAINING MOBILE WATER

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Composition useful in sulfate scale removal

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Additive to decrease the pour point of paraffin inhibitors

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SOLVENT SYSTEMS HAVING A HIGH FLASH POINT AND METHODS OF USE THEREOF

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Thermally stable scale inhibitor compositions

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Downhole fluid for removing scales and methods thereof

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Combined chemical/balance line

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Hydrocarbon flowline corrosion inhibitor overpressure protection

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Method to produce a scale inhibitor

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Well annulus fluid expansion storage device

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LAYERED DOUBLE HYDROXIDE MATERIALS AS ADDITIVES FOR ENHANCING SCALE SQUEEZE CHEMICAL TREATMENT LIFETIME

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Olefinic Ester Compositions and Their Use in Remediating Wax Buildup in Oil- and Gas-Related Applications

#238
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Systems and methods for accessing subsea conduits

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Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity

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Removal of barite weighted mud

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Modified acid compositions as alternatives to conventional acids in the oil and gas industry

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Delivery system for oil-soluble well treatment agents and methods of using the same

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Compositions and methods for delayed crosslinking in hydraulic fracturing fluids

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Method of abandoning a zone or a well with scale

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Tubular for downhole use

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Method of abandoning a well

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METHODS FOR TREATING A DRILLING FLUID

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Chemical deployment modular system and method of use

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Apparatus, systems and method for oil and gas operations

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Method to generate acidic species in wellbore fluids

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Polyaromatic hydrocarbon additives for hydrate inhibition

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Removing scale from a wellbore

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Removing scale from a wellbore

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Subsea skid for chemical injection and hydrate remediation

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Methods and compositions for use of proppant surface chemistry and internal porosity to consolidate proppant particulates

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Cleanout tools and related methods of operation

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Systems and methods for treating fluids in oilfield facilities

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High temperature hydrate inhibitors and methods of use

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COMBINED USES OF A PHOSPHOROUS COMPOUND FOR IRON SULPHIDE DISSOLUTION AND BACTERIAL CONTROL

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Methods and treatment fluids for microfracture creation and microproppant delivery in subterranean formations

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COMPOSITIONS FOR USE IN DRILLING FLUIDS

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Sustained release system for reservoir treatment and monitoring

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Sulfate scale inhibition in high pressure and high temperature applications

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Scale inhibition in high pressure and high temperature applications

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Method of pumping fluids down a wellbore

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Rotary steerable drilling tool and method

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Method and apparatus for autonomous injectable liquid dispensing

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Downhole in-situ heat generation to remove filtercake

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Downhole in-situ heat generation to remove filtercake

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INHIBITION OF PRECIPITATION DURING SANDSTONE ACIDIZING

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Method for scale treatment optimization

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Chlorine Dioxide Containing Mixtures And Chlorine Dioxide Bulk Treatments For Enhancing Oil And Gas Recovery

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System and method for detection and control of the deposition of flow restricting substances

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Methods and systems for wellbore remediation

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Removing scale from a wellbore

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Distributing an amorphic degradable polymer in wellbore operations

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Method for adjusting the level of inhibitors in an oil or gas well

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Oilfield chemical injection system and method of use

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FORMULATIONS AND METHODS FOR MINERAL SCALE REMOVAL

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SYSTEM AND METHOD FOR DOWNHOLE INORGANIC SCALE MONITORING AND INTERVENTION IN A PRODUCTION WELL

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Automatic height adjusting mixing robot

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Band-pass filter

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Inhibiting corrosion in a downhole environment

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Modified acid compositions as alternatives to conventional acids in the oil and gas industry

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Cleanout tools and related methods of operation

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AQUEOUS DRILLING FLUID FOR REDUCING BITUMEN ACCRETION

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Chelating agents and scale inhibitors in degradable downhole tools

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Apparatus and method for removing and retarding paraffin buildup on surfaces in contact with crude oil and natural gas

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Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operations

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Methods to deconstruct asphaltene in petroleum products

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2019-05-09

Methods and apparatus for deposit control

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2019-05-09

Copolymers comprising ethylene vinyl esters and esters of (meth)acrylic acid, their formulations and use as pour point depressant, wax inhibitor and flow enhancer for crude oils

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Apparatus and method to expel fluid

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Flow-induced erosion-corrosion resistance in downhole fluid flow control systems

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2019-04-04

METHODS AND COMPOSITIONS FOR FILTER CAKE REMOVAL

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Methods and compositions for treating a subterranean formation with a polymeric additive composite

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Process for the cleaning oil and gas wellbores

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Multi stage chemical injection

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2019-03-07

Extraction methods and systems for recovery of oil from reservoirs containing mobile water

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Oil and gas production well control system and method