ClassID:

104263

C09K8/12 - CPC Classification

Classification description:

Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations; Well-drilling compositions; Aqueous well-drilling compositions; Clay-free compositions containing synthetic organic macromolecular compounds or their precursors

Recent Application in this class:
#1
20260022287
2026-01-22

DRILLING FLUIDS INCLUDING WETTABILITY MODIFIERS, AND RELATED METHODS

#2
20260015537
2026-01-15

ACID-HYDROLYZABLE RESIDUE-FREE DRILLING FLUID AND PREPARATION METHOD THEREOF

#3
20250314141
2025-10-09

FLUID LOSS CONTROL ADDITIVES FOR DRILLING FLUIDS

#4
20250215304
2025-07-03

WELLBORE SERVICING COMPOSITIONS CONTAINING A LATEX ADDITIVE

#5
20250163766
2025-05-22

METHOD FOR USING DRILLING FLUID IN DRILLING OPERATIONS, DRILLING FLUID AND ITS USE

#6
20250136735
2025-05-01

POLYMER, TACKIFIER AND PREPARATION METHOD THEREFOR, AND DRILLING FLUID

#7
20250101288
2025-03-27

SYNERGISTIC VISCOSIFIERS FOR CLAY-FREE, WATER-BASED DRILLING FLUIDS

#8
20250092300
2025-03-20

DOWNSTREAM USES FOR BRIQUETTES AND OTHER FORMS OF POWDER FROM ASPHALT SHINGLE WASTE

#9
20250092299
2025-03-20

DERIVATIZATION OF AMINES FOR USE AS SHALE INHIBITORS IN A SUBTERRANEAN FORMATION

#10
20240352302
2024-10-24

DRAG REDUCING AGENT

#11
20240309261
2024-09-19

SYNTHESIS AND USE OF GRAFTED GRAPHENE IN AQUEOUS DRILLING FLUIDS AS LOW SHEAR RATE VISCOSITY ENHANCER

#12
20240262786
2024-08-08

METHOD FOR OBTAINING BIO-SOURCED SUSBTITUTED ALKYL(METH)ACRYLAMIDE

#13
20240199939
2024-06-20

WATER-SOLUBLE ASSOCIATIVE AMPHOTERIC POLYMER AS A RHEOLOGY MODIFIER FOR SUBTERRANEAN TREATMENTS

#14
20240191125
2024-06-13

Downstream uses for briquettes and other forms of powder from asphalt shingle waste

#15
20240158683
2024-05-16

METHODS AND SYSTEMS ASSOCIATED WITH A DRY LUBRICANT

#16
20240101886
2024-03-28

SHALE HYDRATION INHIBITORS AND SUBTERRANEAN TREATMENT FLUIDS CONTAINING THEM

#17
20240084186
2024-03-14

DEVELOPMENT OF ULTRA-HIGH MOLECULAR WEIGHT (UHMW) BRANCHED BLOCK COPOLYMER SHALE INHIBITOR FOR WATER BASED DRILLING FLUID

#18
20240052231
2024-02-15

Polymer-based latex for drilling fluids

#19
20240003205
2024-01-04

REDUCING LOSS CIRCULATION DURING WELL-DRILLING OPERATIONS

#20
20230407164
2023-12-21

Water-Based Anionic Friction Reducer

#21
20230235209
2023-07-27

Synthesis and use of grafted graphene in aqueous drilling fluids as low shear rate viscosity enhancer

#22
20230193107
2023-06-22

Reclaimed carbon black drilling fluid additive

#23
20230174845
2023-06-08

Filter cake removal compositions and methods of making and using same

#24
20230104709
2023-04-06

Well conditioning method for wireline logging using dedicated aqueous based drilling fluid composition

#25
20230002664
2023-01-05

Compositions and methods for inhibiting shale and preventing shale accretion

#26
20220380654
2022-12-01

Cationic nitrogen-containing heterocycles and their application in wellbore stability

#27
20220315825
2022-10-06

Synthesis and use of grafted graphene in wellbore construction fluids for lubrication and corrosion inhibition

#28
20220259480
2022-08-18

Water-based drilling fluid compositions and methods for drilling subterranean wells

#29
20220243116
2022-08-04

Development of ultra-high molecular weight (UHMW) branched block copolymer shale inhibitor for water based drilling fluid

#30
20220228049
2022-07-21

Methods and systems associated with lubricant for drilling fluids

#31
20220228048
2022-07-21

Drilling fluid, drilling method, and drilling fluid additive

#32
20220098465
2022-03-31

Conformance for carbonate formations

#33
20220064513
2022-03-03

Reservoir drilling fluids consist of cationic heterocyclic polymers, synthesis, formulation, and applications

#34
20220064512
2022-03-03

Cationic nitrogen-containing heterocycles and their application in wellbore stability

#35
20220041915
2022-02-10

Stabilized water-dispersible latex additives for drilling fluids

#36
20220033701
2022-02-03

Epoxidized alpha olefin based anti-bit balling additive for water-based drilling fluids

#37
20220010078
2022-01-13

Gels derived from poly(ethylidene norbornene)-b-poly(cyclopentene) block copolymer nanocomposites for viscosity modifications and drilling fluid applications

#38
20220002613
2022-01-06

Treatment fluids for demulsifying production fluids

#39
20210317356
2021-10-14

Wellbore drilling compositions

#40
20210292633
2021-09-23

High density fluid for completion applications

#41
20210246353
2021-08-12

Thermoassociative polymers in subterranean treatment fluids

#42
20210238401
2021-08-05

Polyvinyl alcohol compositions having improved particle size distribution

#43
20210222048
2021-07-22

Crosslinked synthetic polymer-based reservoir drilling fluid

#44
20210179913
2021-06-17

Substituted saccharides or glycosides and use thereof in a drilling fluid composition

#45
20210179912
2021-06-17

Thermally responsive viscosifiers in subterranean operations

#46
20210102108
2021-04-08

Solid shale inhibitor additives

#47
20210079283
2021-03-18

Heavy fluid and method of making it

#48
20210062064
2021-03-04

HIGH TEMPERATURE TREATMENT FLUID WITH NANOCELLULOSE

#49
20210017440
2021-01-21

LATEX CHEMISTRY WITH COALESCING AGENT

#50
20200407620
2020-12-31

Method and materials to convert a drilling mud into a solid gel based lost circulation material

#51
20200369936
2020-11-26

Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof

#52
20200283672
2020-09-10

Cationic coatings for improved nanoparticle transport in a carbonate reservoir

#53
20200283671
2020-09-10

Drilling fluid composition including viscosifier and method of using the same

#54
20200270508
2020-08-27

Sequenced polymers for monitoring the filtrate and the rheology

#55
20200255716
2020-08-13

Drilling fluid with improved fluid loss and viscosifying properties

#56
20200224074
2020-07-16

Star macromolecules for wellbore applications

#57
20200216739
2020-07-09

Additive to enhance sag stability of drilling fluid

#58
20200208037
2020-07-02

Method and materials to convert a drilling mud into a solid gel based lost circulation material

#59
20200199443
2020-06-25

POLYMERIC SYSTEMS FOR PARTICLE DISPERSION

#60
20200190385
2020-06-18

Wellbore drilling compositions

#61
20200181993
2020-06-11

Oil-swellable, surface-treated elastomeric polymer and methods of using the same for controlling losses of non-aqueous wellbore treatment fluids to the subterranean formation

#62
20200172787
2020-06-04

Treatment fluids containing high density iodide brines

#63
20200157401
2020-05-21

Composition for preparing anti-wear lubricant for drilling fluid and preparation method of anti-wear lubricant for drilling fluid and drilling fluid

#64
20200087559
2020-03-19

Charged composite materials, methods of synthesizing, and methods of use

#65
20200071469
2020-03-05

Gels derived from poly(ethylidene norbornene)-b-poly(cyclopentene) block copolymer nanocomposites for viscosity modifications and drilling fluid applications

#66
20200031968
2020-01-30

Fast dissolving, water soluble, hydrophobically-modified polyelectrolytes

#67
20200010593
2020-01-09

Surfactant responsive emulsion polymerization micro-gels

#68
20190300772
2019-10-03

Water-based drilling fluids for deepwater drilling and use thereof

#69
20190292434
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#70
20190292433
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#71
20190270929
2019-09-05

Methods and compositions for in-situ polymerization reaction to improve shale inhibition

#72
20190270928
2019-09-05

Methods and compositions for in-situ polymerization reaction to improve shale inhibition

#73
20190256759
2019-08-22

Polymer system for fluid loss control

#74
20190225865
2019-07-25

Loss circulation compositions (LCM) having portland cement clinker

#75
20190218443
2019-07-18

LUBRICANT FOR WATER BASED MUD (WBM) WITH HIGH SALT TOLERANCE FOR HIGH TEMPERATURE AND HIGH PRESSURE FORMATION

#76
20190211249
2019-07-11

Encapsulated production chemicals

#77
20190185736
2019-06-20

Loss circulation compositions (LCM) having Portland cement clinker

#78
20190169480
2019-06-06

AQUEOUS DRILLING FLUID FOR REDUCING BITUMEN ACCRETION

#79
20190161668
2019-05-30

METHOD AND MATERIALS TO CONVERT A DRILLING MUD INTO A SOLID GEL BASED LOST CIRCULATION MATERIAL

#80
20190153294
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#81
20190153293
2019-05-23

Loss circulation compositions (LCM) having portland cement clinker

#82
20190153292
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#83
20190144736
2019-05-16

Breaker fluids and methods of use thereof

#84
20190136110
2019-05-09

Drill-in fluid compositions and methods

#85
20190127627
2019-05-02

Crosslinked n-vinylpyrrolidone polymers for use in subterranean formations and wells

#86
20190085232
2019-03-21

Accelerator used for drilling fluids, water-based drilling fluid and usage thereof

#87
20190085231
2019-03-21

Film former used for coal-bed gas well drilling and preparation method thereof, drilling fluid and usage thereof

#88
20190078008
2019-03-14

Loss circulation material composition having an acidic nanoparticle based dispersion and polyamine

#89
20190048246
2019-02-14

AQUEOUS AMPHOLYTE POLYMER CONTAINING SOLUTIONS FOR SUBTERRANEAN APPLICATIONS

#90
20190023970
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#91
20190023969
2019-01-24

Loss circulation compositions (LCM) having Portland cement clinker

#92
20190023968
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#93
20190023967
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#94
20190023964
2019-01-24

Additive to enhance sag stability of drilling fluid

#95
20180346788
2018-12-06

Methods and compositions for in-situ polymerization reaction to improve shale inhibition

#96
20180346787
2018-12-06

Modified biopolymers for diversion, conformance, and fluid loss control

#97
20180346783
2018-12-06

Copolymer surfactants for use in downhole fluids

#98
20180334868
2018-11-22

Oil-swellable, surface-treated elastomeric polymer and methods of using the same for controlling losses of non-aqueous wellbore treatment fluids to the subterranean formation

#99
20180334867
2018-11-22

Oil-swellable, surface-treated elastomeric polymer and methods of using the same for controlling losses of non-aqueous wellbore treatment fluids to the subterranean formation

#100
20180334866
2018-11-22

Oil-swellable, surface-treated elastomeric polymer and methods of using the same for controlling losses of non-aqueous wellbore treatment fluids to the subterranean formation

#101
20180328147
2018-11-15

Fracturing fluids and methods of treating hydrocarbon formations

#102
20180312739
2018-11-01

Synthetic polymer based fluid loss pill

#103
20180306006
2018-10-25

Methods of using superabsorbent polymers for fracturing and sand control applications

#104
20180244972
2018-08-30

Use of alkali metal silicates during formulation of drilling fluids

#105
20180230355
2018-08-16

Star macromolecules for wellbore applications

#106
20180230354
2018-08-16

High-performance aqueous-phase polymer fluid for drilling well bores in low-gradient formations

#107
20180223157
2018-08-09

Oil-based fluid compositions for hydrocarbon recovery applications

#108
20180215987
2018-08-02

USE OF CARBONATES AS WELLBORE TREATMENT

#109
20180194985
2018-07-12

High performance brine viscosifier

#110
20180194984
2018-07-12

Methods and compositions for in-situ polymerization reaction to improve shale inhibition

#111
20180171203
2018-06-21

Suspending agents obtained by micellar polymerization

#112
20180118992
2018-05-03

Drilling fluid for use in horizontal directional drilling operations

#113
20180112120
2018-04-26

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE AND THE RHEOLOGY

#114
20180105737
2018-04-19

Activator for breaking system in high-temperature fracturing fluids

#115
20180066173
2018-03-08

Asphalt water-based drilling fluid additive

#116
20180057728
2018-03-01

Drilling fluid additive composition suitable for coal-bed gas wells, and water-based drilling fluid and use thereof

#117
20180037802
2018-02-08

Biodegradable additive suitable for use in wellbore fluids

#118
20180037793
2018-02-08

Polymer system for fluid loss control

#119
20180010031
2018-01-11

Polymeric viscosifiers for use in water-based drilling fluids

#120
20180002596
2018-01-04

SUBTERRANEAN FLUIDS CONTAINING SUSPENDED POLYMER BODIES

#121
20170362486
2017-12-21

Biopolymer composite for water-based treatment fluids

#122
20170342206
2017-11-30

POLYOXALATE COPOLYMER

#123
20170335164
2017-11-23

Hydrophilic ether carboxylic acids as lubricant for salt based drilling systems

#124
20170335163
2017-11-23

Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells

#125
20170335162
2017-11-23

Salt-tolerant, thermally-stable rheology modifiers

#126
20170327723
2017-11-16

WELLBORE FLUIDS FOR INCREASED WELLBORE STABILITY AND REDUCED TORQUE

#127
20170306210
2017-10-26

Alkylated Polyetheramines as Clay Stabilizing Agents

#128
20170306209
2017-10-26

Synthetic crosslinked polymer additive for use in subterranean treatment fluids

#129
20170298269
2017-10-19

Hydration of associative polymers

#130
20170275518
2017-09-28

Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells

#131
20170253785
2017-09-07

Composition including viscosifier polymer and polyamine viscosity modifier for treatment of subterranean formations

#132
20170247595
2017-08-31

Shale hydration inhibitor and method of use

#133
20170247594
2017-08-31

Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions

#134
20170233641
2017-08-17

Polymeric metal crosslinker for shear tolerant fracturing fluid application

#135
20170218252
2017-08-03

Oil field treatment fluids

#136
20170218251
2017-08-03

Polyvinyl alcohol-based shale inhibitor

#137
20170210977
2017-07-27

Surfactant formulations and associated methods for reduced and delayed adsorption of the surfactant

#138
20170210873
2017-07-27

METHOD OF DECOMPOSING ESTER RESINS

#139
20170199296
2017-07-13

Methods of logging

#140
20170198192
2017-07-13

Breaker fluids and methods of use thereof

#141
20170198189
2017-07-13

Crosslinked synthetic polymer-based reservoir drilling fluid

#142
20170183561
2017-06-29

Well treatment fluids comprising cross-linkable polysaccharides

#143
20170174982
2017-06-22

Temperature-triggered viscosifier for treatment of a subterranean formation

#144
20170174974
2017-06-22

Encapsulated polymers and selective activation thereof

#145
20170121586
2017-05-04

Polymer-based drilling fluids containing non-biodegradable materials and methods for use thereof

#146
20170101573
2017-04-13

Crosslinked high molecular weight polymers for use in water-based drilling fluids

#147
20170051196
2017-02-23

Viscosifiers and filtration control agents for use in high temperature subterranean operations

#148
20170015888
2017-01-19

FORMED BODY OF RESIN TO BE THROWN INTO WATER

#149
20170009127
2017-01-12

Controlling The Stability Of Water In Water Emulsions

#150
20170002255
2017-01-05

Methods and compositions for in-situ polymerization reaction to improve shale inhibition

#151
20170002135
2017-01-05

POLYOXALATES AND A PROCESS FOR THE PRODUCTION THEREOF

#152
20160376488
2016-12-29

Drilling fluids with crosslinked sulfonate-containing polymers dispersed in high density brines

#153
20160369064
2016-12-22

Dendritic polymer, dendritic polymer monomer, and hyperbranched copolymer

#154
20160362594
2016-12-15

Drilling fluids and methods of use

#155
20160355722
2016-12-08

Composition including viscosifier polymer and polyamine viscosity modifier for treatment of subterranean formations

#156
20160355721
2016-12-08

Dry drilling fluid additives and methods relating thereto

#157
20160333248
2016-11-17

Bionic drilling fluid and preparation method thereof

#158
20160319177
2016-11-03

Dispersion solution for drilling and method of extraction using the dispersion solution

#159
20160304646
2016-10-20

Surfactant Responsive Emulsion Polymerization Micro-Gels

#160
20160289549
2016-10-06

Fracturing fluids and methods of treating hydrocarbon formations

#161
20160289547
2016-10-06

Methods of using superabsorbent polymers for fracturing and sand control applications

#162
20160289541
2016-10-06

Use of superabsorbent polymers for pressure control and diversion applications

#163
20160289530
2016-10-06

Drilling fluids with leakoff control and drill cuttings removal sweeps

#164
20160272869
2016-09-22

Treatment fluids and uses thereof

#165
20160272868
2016-09-22

High-temperature high-pressure (HTHP) stable synthetic polymer for water based oil-well servicing fluids

#166
20160264837
2016-09-15

Segregating fluids, methods of making, and methods of use

#167
20160264836
2016-09-15

Oil and gas treatment composition comprising hydroxyethyl cellulose and crosslinked polyvinylpyrrolidone

#168
20160264835
2016-09-15

VISCOSIFIER FOR TREATMENT OF A SUBTERRANEAN FORMATION

#169
20160264833
2016-09-15

Copolymer surfactants for use in downhole fluids

#170
20160251560
2016-09-01

Water-soluble linear polyphosphazenes in water-based fluids for use in wells or pipelines

#171
20160222274
2016-08-04

ADDITIVES FOR CONTROLLING LOST CIRCULATION AND METHODS OF MAKING AND USING SAME

#172
20160215196
2016-07-28

FLUID COMPOSITION COMPRISING CROSSLINKED POLYVINYLPYRROLIDONE FOR OIL FIELD APPLICATIONS

#173
20160160108
2016-06-09

Solids-free diverting agents and methods related thereto

#174
20160122615
2016-05-05

Water-based drilling fluid with cyclodextrin shale stabilizer

#175
20160122614
2016-05-05

Weighted well fluids

#176
20160122613
2016-05-05

Drilling fluid composition including viscosifier and method of using the same

#177
20160083639
2016-03-24

Multi-functional surfactant complexes for use in subterranean formations

#178
20160068734
2016-03-10

Low-melting elemental metal or fusible alloy encapsulated polymerization initiator for delayed initiation

#179
20160060985
2016-03-03

Methods for Servicing Subterranean Wells

#180
20160046852
2016-02-18

Polymer-based drilling fluids containing non-biodegradable particulates and methods for use thereof

#181
20160040057
2016-02-11

Polymers for enhanced hydrocarbon recovery

#182
20160032167
2016-02-04

Natural oil-derived wellbore compositions and methods of use

#183
20160024368
2016-01-28

DRILLING FLUID AND METHODS

#184
20160024367
2016-01-28

Ethylene viscosifier polymer for treatment of a subterranean formation

#185
20160017207
2016-01-21

Internal olefin sulfonate composition

#186
20160009983
2016-01-14

Gel compositions for hydraulic fracturing applications

#187
20150361321
2015-12-17

Gellable treatment fluids comprising quaternary ammonium salt gel-time modifiers and methods for use thereof

#188
20150353806
2015-12-10

Biodegradable additive concentrate improving the lubricity of aqueous sludges, use thereof and aqueous sludge for drilling

#189
20150329763
2015-11-19

Stabilization of polyacrylamide emulsion formulations

#190
20150315891
2015-11-05

DISPERSION SOLUTION FOR DRILLING AND METHOD OF EXTRACTION USING THE DISPERSION SOLUTION

#191
20150315453
2015-11-05

HIGH TEMPERATURE AND HIGH PRESSURE FLUID LOSS ADDITIVES AND METHODS OF USE THEREOF

#192
20150299553
2015-10-22

Dispersion solution for drilling and method of extracting underground resources using the dispersion solution

#193
20150291873
2015-10-15

Thermoset nanocomposite particles, processing for thier production, and their use in oil and natural gas drilling applications

#194
20150240144
2015-08-27

Friction reducer compositions

#195
20150210918
2015-07-30

Oligomeric and polymeric electronically-modified boronic acids and methods of using the same

#196
20150197682
2015-07-16

ANTI-GEL AGENT FOR POLYHYDROXYETHERAMINES, GEL STABILIZED POLYHYDROXYETHERAMINE SOLUTIONS, AND METHODS FOR MAKING AND USING SAME

#197
20150133346
2015-05-14

Filtrate control agents in solid form

#198
20150129226
2015-05-14

Thickening of fluids

#199
20150126414
2015-05-07

POLYGLYCOLIC ACID RESIN SHORT FIBERS AND WELL TREATMENT FLUID

#200
20150099674
2015-04-09

Method and Composition for Curing Lost Circulation

#201
20150087560
2015-03-26

Polyglycolic acid resin short fibers for use in well treatment fluid

#202
20150065672
2015-03-05

Amphiphilic macromolecule and use thereof

#203
20150027702
2015-01-29

Methods of treatment of a subterranean formation with polymeric structures formed in situ

#204
20150011442
2015-01-08

Method of treating a high-temperature well with a fluid containing a viscosifier and a stabilizer package

#205
20140367108
2014-12-18

Acidizing compositions including ampholyte polymers

#206
20140353042
2014-12-04

Self-triggering lost circulation control in carbonate formation

#207
20140352969
2014-12-04

Ampholyte polymers and methods of treating subterranean formations with the same

#208
20140352962
2014-12-04

Ampholyte polymeric compounds in subterranean applications

#209
20140352960
2014-12-04

Ampholyte polymeric compounds in subterranean applications

#210
20140349895
2014-11-27

Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent

#211
20140348887
2014-11-27

Surfactant responsive emulsion polymerized micro-gels

#212
20140342952
2014-11-20

Method of treating a high-temperature well with a fluid containing a viscosifier and a stabilizer package

#213
20140213490
2014-07-31

Wellbore servicing compositions and methods of making and using same

#214
20140190695
2014-07-10

Methods using stimulation-capable drill-in and completion fluids

#215
20140174748
2014-06-26

Oligomeric and polymeric electronically-modified boronic acids and methods of using the same

#216
20140174742
2014-06-26

Well treatment with complexed metal crosslinkers

#217
20140148368
2014-05-29

DRILLING FLUIDS AND DRILLING FLUID ADDITIVES FOR TREATMENT OF BITUMEN IN WELLBORE CUTTINGS

#218
20140148366
2014-05-29

High-pressure/high-temperature solids-free fluid system for drilling, completing and repairing petroleum and gas wells

#219
20140135238
2014-05-15

Water-based drilling fluids containing crosslinked polyacrylic acid

#220
20140131043
2014-05-15

Swellable polymer with anionic sites

#221
20140128295
2014-05-08

Water-based drilling fluid with cyclodextrin shale stabilizer

#222
20140110120
2014-04-24

Oligomeric and Polymeric Electronically-Modified Boronic Acids and Methods of Using the Same

#223
20140087975
2014-03-27

Treatment fluid containing a corrosion inhibitor of a polymer including a silicone and amine group

#224
20140076565
2014-03-20

Thermally-activated, high temperature particulate suspending agents and methods relating thereto

#225
20140051610
2014-02-20

Environmentally beneficial recycling of brines in the process of reducing friction resulting from turbulent flow

#226
20140041944
2014-02-13

WATER-BASED POLYMER DRILLING FLUID AND METHOD OF USE

#227
20140024561
2014-01-23

Absorbent Polymers, and Related Methods of Making and Using the Same

#228
20140024560
2014-01-23

DRILLING FLUID USING SURFACTANT PACKAGE

#229
20130324443
2013-12-05

Salt-tolerant, thermally-stable rheology modifiers

#230
20130324441
2013-12-05

Drilling Fluids Useful For Limiting Tar Sand Accretion

#231
20130310284
2013-11-21

Methods for stabilizing water-sensitive clays

#232
20130303412
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Viscosified fluid loss control agent utilizing chelates

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OIL DRILLING AUXILIARY DISPERSION

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Method for dispersing aqueous based drilling fluid for drilling subterranean boreholes

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Method for the removal or suppression of interfering metal ions using environmentally friendly competitive binders

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Method for delayedly crosslinking environmentally friendly fluids

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Mono- and polyenoic acid and metal particle mixtures for breaking VES-gelled fluids

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Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions

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Filtration control agent and a drilling fluid containing the same

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Water-soluble polymers for oil recovery

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Compositions and methods for cleaning subterranean boreholes

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Methods of preventing emulsification of crude oil in well bore treatment fluids

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Methods for servicing subterranean wells

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Invert emulsion drilling fluid containing a hygroscopic liquid and a polymeric suspending agent

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Gellable treatment fluids comprising quaternary ammonium salt gel-time modifiers and methods for use thereof

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Polymeric gel system and methods for making and using same in hydrocarbon recovery

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Polymeric additives for enhancement of treatment fluids comprising viscoelastic surfactants and methods of use

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Low-melting elemental metal or fusible alloy encapsulated polymerization initiator for delayed initiation

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Zero shear viscosifying agent

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Method of drilling a subterranean well with crosslinked polyacrylic acid

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Compositions and methods for treatment of well bore tar

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Use of hydrophobically associated copolymer as an additive in specific oilfield applications

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Clay inhibitors for the drilling industry

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Drilling fluids comprising hydroxylated polymers

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Copolymer and preparation method and application thereof

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Method for dispersing aqueous based drilling fluid for drilling subterranean boreholes

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Multifunctional boronic acid crosslinking agents and associated methods

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Drilling fluid and methods

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Zero shear viscosifying agent

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WATER-BASED POLYMER DRILLING FLUID AND METHOD OF USE

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Method for treating well bore with polyurethane composition

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HIGH PERFORMANCE WATER BASED FLUIDS

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Low conductivity water based wellbore fluid

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Polymeric additives for enhancement of treatment fluids comprising viscoelastic surfactants and methods of use

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Treatment fluids comprising entangled equilibrium polymer networks

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Treatment fluids comprising transient polymer networks

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Low molecular weight graft copolymers for scale control

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Annular fluids and method of emplacing the same

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Drilling fluid additive and methods of stabilizing kaolinite fines migration

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Method and composition for curing lost circulation

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