ClassID:

104261

C09K8/08 - 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 natural organic compounds, e.g. polysaccharides, or derivatives thereof

Sub-classes:
Recent Application in this class:
#1
20260139184
2026-05-21

BRINE-TOLERANT COMPOSITIONS COMPRISING FATTY ACID OR FATTY ESTER REACTION PRODUCTS OF SACCHARIDE POLYMERS

#2
20260117085
2026-04-30

FERMENTED MOLASSES COMPOSITION AND USES

#3
20260022287
2026-01-22

DRILLING FLUIDS INCLUDING WETTABILITY MODIFIERS, AND RELATED METHODS

#4
20250376612
2025-12-11

PLA DISPERSION AS FILTRATION CONTROL AGENT IN DRILLING FLUIDS

#5
20250282987
2025-09-11

INCORPORATING IMIDAZOLE-BASED NANOMATERIAL INTO DRILLING FLUIDS FOR EFFECTIVE HYDROGEN SULFIDE SCAVENGING DURING DRILLING OPERATIONS

#6
20250277143
2025-09-04

LUBRICANT BLENDS AND METHODS FOR IMPROVING LUBRICITY OF BRINE-BASED DRILLING FLUIDS

#7
20250236777
2025-07-24

WATER-BASED DRILLING MUD FORMULATION USING WASTEWATER DISCHARGE

#8
20250223489
2025-07-10

BRINE-TOLERANT COMPOSITIONS COMPRISING FATTY ACID OR FATTY ESTER REACTION PRODUCTS OF SACCHARIDE POLYMERS

#9
20250101288
2025-03-27

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

#10
20250019610
2025-01-16

BRINE-TOLERANT LUBRICANTS AND METHODS FOR USING THE SAME

#11
20240384152
2024-11-21

SODIUM DECYL- AND LAURYLGLUCOSIDES HYDROXYPROPYL PHOSPHATES AS LUBRICATING AGENTS IN AQUEOUS BASED DRILLING FLUIDS

#12
20240301764
2024-09-12

Method for Forming High Efficiency Geothermal Wellbores

#13
20240229606
2024-07-11

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

#14
20240166934
2024-05-23

WATER-BASED DRILLING MUD FORMULATION USING WASTEWATER DISCHARGE

#15
20240059969
2024-02-22

ENVIRONMENTALLY FRIENDLY ADDITIVES

#16
20240026204
2024-01-25

LUBRICANT BLENDS AND METHODS FOR IMPROVING LUBRICITY OF BRINE-BASED DRILLING FLUIDS

#17
20230392065
2023-12-07

Monovalent brine-based reservoir drilling fluid

#18
20230357622
2023-11-09

Inhibitive divalent wellbore fluids, methods of providing said fluids, and uses thereof

#19
20230272260
2023-08-31

Wellbore treatment fluid

#20
20230174840
2023-06-08

Drill-in fluid compositions and methods

#21
20230136892
2023-05-04

Pelletized diverting agents using degradable polymers

#22
20230054276
2023-02-23

CHLORINATED HYDROCARBONS AS LUBRICANTS FOR COILED-TUBING (CT) SUBTERRANEAN DRILLING IN OIL-GAS EXPLORATION APPLICATION

#23
20220372838
2022-11-24

Method for forming high efficiency geothermal wellbores

#24
20220298403
2022-09-22

Drilling fluid lubricants

#25
20220017805
2022-01-20

Degradable tags for depth correlation mud logging

#26
20210388699
2021-12-16

Wellbore servicing fluid and methods of making and using same

#27
20210371721
2021-12-02

Low molecular mass organic gelator viscosihiers

#28
20210292675
2021-09-23

Brine-tolerant lubricants and methods for using the same

#29
20210261847
2021-08-26

Date seed-based chips lost circulation material

#30
20210246352
2021-08-12

WELLBORE DRILLING COMPOSITIONS

#31
20210179912
2021-06-17

Thermally responsive viscosifiers in subterranean operations

#32
20210040373
2021-02-11

Aryl-substituted saccharides or glycosides and use thereof in a drilling fluid composition

#33
20210032525
2021-02-04

Spacer fluids and cement slurries that include surfactants

#34
20200407621
2020-12-31

EMULSIFIED DRILLING FLUIDS AND METHODS OF MAKING AND USE THEREOF

#35
20200392391
2020-12-17

Sugar-based surfactant for well treatment fluids

#36
20200369938
2020-11-26

Inhibitive divalent wellbore fluids, methods of providing said fluids, and uses thereof

#37
20200354623
2020-11-12

Crystallization suppressant combinations for high density clear brine fluids

#38
20200308468
2020-10-01

CROSS-LINKED LEVAN BLENDS AS LOST CIRULATION MATERIALS

#39
20200291285
2020-09-17

Development of retarded acid system

#40
20200283672
2020-09-10

Cationic coatings for improved nanoparticle transport in a carbonate reservoir

#41
20200248061
2020-08-06

Lubricants for water-based drilling fluids

#42
20200216740
2020-07-09

Reusable high performance water based drilling fluids

#43
20200165504
2020-05-28

Spacer fluid compositions that include surfactants

#44
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

#45
20200140739
2020-05-07

Methods of using drilling fluid compositions with enhanced rheology

#46
20200115622
2020-04-16

PROCESS FOR THERMAL DEGRADATION OF A BIOPOLYMER

#47
20200095491
2020-03-26

Development of anti-bit balling fluids

#48
20200087560
2020-03-19

Emulsifier compositions for invert emulsion fluids and methods of using the same

#49
20200079988
2020-03-12

Flaky date fruit cap for moderate to severe loss control

#50
20200079987
2020-03-12

Flaky date fruit cap for moderate to severe loss control

#51
20200040247
2020-02-06

Development of anti-bit balling fluids

#52
20200017747
2020-01-16

Date pit based drilling fluid composition

#53
20200011151
2020-01-09

Method for forming high efficiency geothermal wellbores

#54
20200002593
2020-01-02

Method for making a drilling composition and treating a subterranean formation

#55
20190345372
2019-11-14

Sugar-based surfactant for well treatment fluids

#56
20190309210
2019-10-10

Development of anti-bit balling fluids

#57
20190309209
2019-10-10

Delayed breaker composition

#58
20190309208
2019-10-10

Engineered Lubricant

#59
20190300772
2019-10-03

Water-based drilling fluids for deepwater drilling and use thereof

#60
20190292434
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#61
20190292433
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#62
20190292432
2019-09-26

Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal

#63
20190292431
2019-09-26

Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal

#64
20190256758
2019-08-22

High densitiy clear brine fluids

#65
20190233708
2019-08-01

Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore

#66
20190233707
2019-08-01

Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore

#67
20190225865
2019-07-25

Loss circulation compositions (LCM) having portland cement clinker

#68
20190218442
2019-07-18

Method for drilling a wellbore with a weighted hydrogen sulfide scavenger fluid

#69
20190218441
2019-07-18

Method for drilling a hydrogen sulfide-containing formation

#70
20190203096
2019-07-04

Cement slurries, cured cements and methods of making and use thereof

#71
20190203095
2019-07-04

Cement slurries, cured cements and methods of making and use thereof

#72
20190185736
2019-06-20

Loss circulation compositions (LCM) having Portland cement clinker

#73
20190153305
2019-05-23

Method of using Sophorolipids in well treatment operations

#74
20190153294
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#75
20190153293
2019-05-23

Loss circulation compositions (LCM) having portland cement clinker

#76
20190153292
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#77
20190136110
2019-05-09

Drill-in fluid compositions and methods

#78
20190119549
2019-04-25

A New Anti-Foaming Composition

#79
20190100684
2019-04-04

Method of drilling a substerranean geological formation with a drilling fluid composition comprising copper nitrate

#80
20190092996
2019-03-28

DISPERSANT IN CEMENT FORMULATIONS FOR OIL AND GAS WELLS

#81
20190071595
2019-03-07

High performance water based fluid

#82
20190023971
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#83
20190023970
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#84
20190023969
2019-01-24

Loss circulation compositions (LCM) having Portland cement clinker

#85
20190023968
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#86
20190023967
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#87
20190023966
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#88
20180346792
2018-12-06

Methods and compositions for cleaning interior of a casing string

#89
20180320063
2018-11-08

Development of retarded acid system

#90
20180320050
2018-11-08

Methods of using drilling fluid compositions with enhanced rheology

#91
20180312439
2018-11-01

Dispersant in cement formulations for oil and gas wells

#92
20180282216
2018-10-04

Dispersant in cement formulations for oil and gas wells

#93
20180223175
2018-08-09

Retarded acid systems, emulsions, and methods for using in acidizing carbonate formations

#94
20180223172
2018-08-09

Crystallization suppressant combinations for high density clear brine fluids

#95
20180223169
2018-08-09

Spacer fluid compositions that include surfactants

#96
20180223168
2018-08-09

Spacer fluids and cement slurries that include surfactants

#97
20180223167
2018-08-09

Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal

#98
20180223166
2018-08-09

Invert emulsion based drilling fluid and methods of using same

#99
20180223165
2018-08-09

Emulsifier compositions for invert emulsion fluids and methods of using the same

#100
20180223162
2018-08-09

Development of anti-bit balling fluids

#101
20180223161
2018-08-09

Development of anti-bit balling fluids

#102
20180223160
2018-08-09

Anti-bit balling drilling fluids, and methods of making and use thereof

#103
20180223159
2018-08-09

Anti-bit balling drilling fluids, and methods of making and use thereof

#104
20180223158
2018-08-09

Drilling fluid compositions with enhanced rheology and methods of using same

#105
20180223156
2018-08-09

Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore

#106
20180223153
2018-08-09

Lubricants for water-based drilling fluids

#107
20180222797
2018-08-09

Cement slurries, cured cement and methods of making and use thereof

#108
20180222796
2018-08-09

Cement slurries, cured cements and methods of making and use thereof

#109
20180208830
2018-07-26

PROCESS FOR THERMAL DEGRADATION OF A BIOPOLYMER

#110
20180201820
2018-07-19

Monovalent brine-based reservoir drilling fluid

#111
20180187065
2018-07-05

Modified natural polymers as bitumen encapsulants

#112
20180187062
2018-07-05

Flaky date fruit cap for moderate to severe loss control

#113
20180187061
2018-07-05

Flaky date fruit cap for moderate to severe loss control

#114
20180066172
2018-03-08

Shale inhibitors based on cationic tamarind gum, and drilling fluid comprising the shale inhibitor

#115
20180016484
2018-01-18

HIGH DENSITY CLEAR BRINE FLUIDS

#116
20170362486
2017-12-21

Biopolymer composite for water-based treatment fluids

#117
20170275517
2017-09-28

Treatment fluids comprising finger millet and methods of use

#118
20170260439
2017-09-14

Method for forming a high-performance aqueous-phase polymer fluid and system for drilling well bores in low-gradient formations

#119
20170247606
2017-08-31

SILICA CROSSLINKER INCLUDING BORONIC ACID FUNCTIONALITIES OR ESTERS THEREOF FOR TREATMENT OF SUBTERRANEAN FORMATIONS

#120
20170233643
2017-08-17

Biopolymer based cationic surfactant for clay stabilization and prevention of sludging

#121
20170183563
2017-06-29

Self-suspending proppant particulates using canola protein-based hydrogel

#122
20170183561
2017-06-29

Well treatment fluids comprising cross-linkable polysaccharides

#123
20170152431
2017-06-01

Compositions and method for treating out hydrogen sulfide and preventing settling of precipitate in an environmentally responsible drilling and packer fluid

#124
20170145296
2017-05-25

Water-based wellbore servicing fluids with high temperature fluid loss control additive

#125
20170137690
2017-05-18

Wellbore strengthening additive and uses thereof

#126
20170073656
2017-03-16

Polypeptides having xanthan degrading activity and polynucleotides encoding same

#127
20170073433
2017-03-16

Processes to Produce Unpurified Polygalacturonic Acids from Plant Tissue Using Calcium Sequestering Compounds

#128
20170009127
2017-01-12

Controlling The Stability Of Water In Water Emulsions

#129
20160355726
2016-12-08

Methods for improving the distribution of a sealant composition in a wellbore and treatment fluids providing the same

#130
20160312100
2016-10-27

Preparation and use of drilling fluids with date seed powder fluid loss additive

#131
20160304764
2016-10-20

Biodegradable, food grade shale stabilizer for use in oil and gas wells

#132
20160272881
2016-09-22

Viscosity enhancer

#133
20160214901
2016-07-28

Cement compatible water-based drilling mud compositions

#134
20160185879
2016-06-30

MODIFIED STARCH

#135
20160177164
2016-06-23

Oleaginous Microbial Lubricants

#136
20160160107
2016-06-09

Controlling flow in downhole operations

#137
20160122615
2016-05-05

Water-based drilling fluid with cyclodextrin shale stabilizer

#138
20160122614
2016-05-05

Weighted well fluids

#139
20160083641
2016-03-24

Solids free gellable treatment fluids

#140
20150353806
2015-12-10

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

#141
20150344764
2015-12-03

Viscous settable fluid for lost circulation in subterranean formations

#142
20150300139
2015-10-22

Method of using sophorolipids in well treatment operations

#143
20150299553
2015-10-22

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

#144
20150275251
2015-10-01

Methods of biosynthesizing bacterial extracellular galactomannan polysaccharides and subunits thereof for use in subterranean formation operations

#145
20150252622
2015-09-10

Method for drilling underground cavities, compositions comprising alkyl polyglycosides, and use thereof as a lubricant in the production of aqueous drilling muds

#146
20150247081
2015-09-03

Oleaginous Microbial Lubricants

#147
20150240143
2015-08-27

Biomimetic polymer for stabilizing wellbore and method for preparation of the same and drilling fluid

#148
20150210912
2015-07-30

Method for reducing fluid loss during drilling of a hydrocarbon formation using a water-based drilling fluid composition having a multifunctional mud additive

#149
20150166866
2015-06-18

Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar sands

#150
20150159073
2015-06-11

Biodegradable anti-accretion additive for water-based drilling fluids

#151
20150133346
2015-05-14

Filtrate control agents in solid form

#152
20150132824
2015-05-14

Polypeptides having xanthan degrading activity and polynucleotides encoding same

#153
20150101805
2015-04-16

Viscoelastic surfactant based wellbore fluids and methods of use

#154
20150096808
2015-04-09

Reusable high performance water based drilling fluids

#155
20150072901
2015-03-12

LOST CIRCULATION AND FLUID LOSS MATERIALS CONTAINING GUAR CHAFF AND METHODS FOR MAKING AND USING SAME

#156
20150068744
2015-03-12

Fluid mobility modifiers for increased production in subterranean formations

#157
20140352969
2014-12-04

Ampholyte polymers and methods of treating subterranean formations with the same

#158
20140315766
2014-10-23

Methods and compositions of treating a subterranean formation with an optimized treatment fluid

#159
20140256602
2014-09-11

DRILLING FLUID THAT WHEN MIXED WITH A CEMENT COMPOSITION ENHANCES PHYSICAL PROPERTIES OF THE CEMENT COMPOSITION

#160
20140256601
2014-09-11

PREDISPERSED WAXES FOR OIL AND GAS DRILLING

#161
20140228257
2014-08-14

Method for sea floor drilling using hagfish slime as drilling fluid additive

#162
20140148366
2014-05-29

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

#163
20140128295
2014-05-08

Water-based drilling fluid with cyclodextrin shale stabilizer

#164
20140110177
2014-04-24

Green directional drilling fluid composition

#165
20140066339
2014-03-06

Aqueous salt-stabilized drilling fluids

#166
20140034143
2014-02-06

Hydraulic fluid compositions

#167
20130324442
2013-12-05

Compositions and method for treating out hydrogen sulfide and preventing settling of precipitate in an environmentally responsible drilling and packer fluid

#168
20130316936
2013-11-28

Volcanic ash-based drilling mud to overcome drilling challenges

#169
20130233623
2013-09-12

CONSOLIDATION

#170
20130225455
2013-08-29

Fluid composition comprising glass microspheres and method of making and using the same

#171
20130178398
2013-07-11

Oxygen scavenger compositions for completion brines

#172
20130172217
2013-07-04

Method for dispersing aqueous based drilling fluid for drilling subterranean boreholes

#173
20130168095
2013-07-04

Iodide stabilizer for viscosified fluid containing iron

#174
20130153226
2013-06-20

Method for delayedly crosslinking environmentally friendly fluids

#175
20130133888
2013-05-30

AQUEOUS GELS FOR WELL BORE STRENGTHENING

#176
20130123148
2013-05-16

Use of polylysine as a shale inhibitor

#177
20130065798
2013-03-14

Water-based drilling fluid composition having a multifunctional mud additive for reducing fluid loss during drilling

#178
20120305248
2012-12-06

Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition

#179
20120302468
2012-11-29

FORMULATIONS AND USES OF DRILLING FLUIDS CONTAINING VISCOSIFIED PHOSPHATE BRINE

#180
20120289435
2012-11-15

Drilling fluid additive with low freezing point

#181
20120272838
2012-11-01

Metering process and device for performing the process

#182
20120214712
2012-08-23

Methods of using polysaccharide based cement additives

#183
20120157354
2012-06-21

FRICTION REDUCER

#184
20120118569
2012-05-17

Oxygen scavenger compositions for completion brines

#185
20120108471
2012-05-03

Volcanic ash-based drilling mud to overcome drilling challenges

#186
20120090848
2012-04-19

MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT

#187
20120090846
2012-04-19

MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT

#188
20120055673
2012-03-08

Method for dispersing aqueous based drilling fluid for drilling subterranean boreholes

#189
20120028853
2012-02-02

DRILLING FLUID, DRILLING FLUID ADDITIVE, METHODS OF MAKING AND USING, SUCH FLUID AND ADDITIVE, METHODS OF OPERATING A WELL

#190
20120000652
2012-01-05

Well treatment fluid

#191
20110290493
2011-12-01

Compositions and methods for completing subterranean wells

#192
20110275545
2011-11-10

Drilling fluid additive system

#193
20110272139
2011-11-10

SYSTEM FOR DRILLING A WELLBORE

#194
20110257050
2011-10-20

Dry blend fracturing fluid additives

#195
20110198089
2011-08-18

METHODS TO REDUCE SETTLING RATE OF SOLIDS IN A TREATMENT FLUID

#196
20110160098
2011-06-30

Hydraulic fluid compositions

#197
20110086783
2011-04-14

Air drilling misting fluid contains syrups

#198
20110056752
2011-03-10

Methods and aqueous based wellbore fluids for reducing wellbore fluid loss and filtrate loss

#199
20110053813
2011-03-03

Methods to reduce settling rate of solids in a treatment fluid

#200
20110053807
2011-03-03

Methods to control fluid loss in a well bore

#201
20110003720
2011-01-06

Controlling the stability of water in water emulsions

#202
20100331221
2010-12-30

Drilling fluid additive containing heated syrup solids

#203
20100326658
2010-12-30

Method and composition to increase viscosity of crosslinked polymer fluids

#204
20100311621
2010-12-09

Methods and compositions for viscosifying heavy aqueous brines

#205
20100294498
2010-11-25

Viscoelastic surfactant based wellbore fluids and methods of use

#206
20100276151
2010-11-04

Dual functional components and associated methods

#207
20100256023
2010-10-07

Viscosified treatment fluids comprising scleroglucan or diutan and associated methods

#208
20100227781
2010-09-09

Method to prevent salt crystal agglomeration and settling in a drilling fluid

#209
20100216673
2010-08-26

Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures

#210
20100181110
2010-07-22

Green directional drilling fluid composition

#211
20100130388
2010-05-27

Method for treating wellbore in a subterranean formation with high density brines and complexed metal crosslinkers

#212
20100093564
2010-04-15

Aqueous fluid and method of making and using the same

#213
20090305913
2009-12-10

Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids

#214
20090305912
2009-12-10

METHOD FOR MITIGATING THE SALINITY OF DRILLING WASTE

#215
20090291862
2009-11-26

Drilling fluid with circulation loss reducing additive package

#216
20090291861
2009-11-26

WELLBORE FLUID

#217
20090163387
2009-06-25

Stabilizing biphasic concentrates through the addition of small amounts of high molecular weight polyelectrolytes

#218
20090149353
2009-06-11

Polysaccharide Containing Well Treatment Compositions and Methods of Using Same

#219
20090099046
2009-04-16

METHODS, DRILLING FLUIDS AND DRILLING FLUID ADDITIVES FOR LIMITING TAR SAND ACCRETION ON METAL SURFACES

#220
20090036331
2009-02-05

Hydraulic fluid compositions

#221
20080300150
2008-12-04

Methods of using polysaccharide based cement additives

#222
20080300149
2008-12-04

Polysaccharide based cement additives

#223
20080220992
2008-09-11

Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures

#224
20080220081
2008-09-11

Water-dispersible xanthan gum containing composition

#225
20080085842
2008-04-10

Methods for producing a guar gum comprising undehusked guar and for using the guar gum in treating a subterranean formation

#226
20080078545
2008-04-03

Treatment fluids viscosifield with modified xanthan and associated methods for well completion and stimulation

#227
20080039347
2008-02-14

Treatment fluids comprising clarified xanthan and associated methods

#228
20080035338
2008-02-14

Dual functional components and associated methods

#229
20070287638
2007-12-13

Use of dicarbonyl compounds for increasing the thermal stability of biopolymers in the field of oil and gas exploration

#230
20070249504
2007-10-25

Aqueous gels for well bore strengthening

#231
20070197399
2007-08-23

Ethoxylated raw cotton linters for completion and workover fluids

#232
20070135312
2007-06-14

Solvent free fluidized polymer suspensions for oilfield servicing fluids

#233
20070111897
2007-05-17

Composition and method for thickening heavy aqueous brines with cationic guar

#234
20070078063
2007-04-05

Subterranean treatment fluids and methods of treating subterranean formations

#235
20060258542
2006-11-16

Nonnatural galactomannans and methods of use

#236
20060234873
2006-10-19

Thermal stability agent for maintaining viscosity and fluid loss properties in drilling fluids

#237
20060205606
2006-09-14

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