ClassID:

104280

C09K8/40 - 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 Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses

Recent Application in this class:
#1
20260125592
2026-05-07

LOST-CIRCULATION MATERIAL MADE FROM INORGANIC, RECYCLED ROOFING MATERIALS

#2
20260117111
2026-04-30

CEMENTING SPACER

#3
20260071111
2026-03-12

WELLBORE SERVICING COMPOSITIONS CONTAINING A LATEX ADDITIVE

#4
20260062601
2026-03-05

METHOD OF USING GRAPHITE OR GRAPHENE IN SPACER FLUID FOR DISPLACING NON-AQUEOUS DRILLING FLUID

#5
20250327375
2025-10-23

WELLBORE TREATMENT TO REMOVE DAMAGE AND INCREASE PRODUCTION

#6
20250282988
2025-09-11

SPACER FLUIDS CONTAINING SWELLABLE ABRASIVE PARTICLES

#7
20250215305
2025-07-03

WELLBORE SERVICING COMPOSITIONS CONTAINING A LATEX ADDITIVE

#8
20240425742
2024-12-26

High Temperature Suspension Additive For Wellbore Treatments

#9
20240344419
2024-10-17

SYSTEMS AND METHODS FOR PRODUCING WELLBORE FLUIDS

#10
20240336832
2024-10-10

Propoxylates for foam enhancement

#11
20240318061
2024-09-26

Chelating agents for barium sulfate dissolution in displacment spacer systems

#12
20240301764
2024-09-12

Method for Forming High Efficiency Geothermal Wellbores

#13
20240287375
2024-08-29

COMPOSITIONS AND METHODS FOR WELL CEMENTING

#14
20240117236
2024-04-11

MIXTURE FOR PRE-CEMENTING OPERATION IN WELLBORE

#15
20240117235
2024-04-11

COMPOUND GREASE COATING FOR CONTROLLED DISSOLUTION OF A DISSOLVABLE COMPONENT OF A DOWNHOLE TOOL

#16
20240059950
2024-02-22

Cement spacer fluid with polyethyleneimine hydrochloride salt as a shale inhibitor

#17
20230358132
2023-11-09

METHODS OF DETERMINING WELLBORE INTEGRITY

#18
20230323182
2023-10-12

Open-cell, natural materials as lost-circulation material

#19
20230272260
2023-08-31

Wellbore treatment fluid

#20
20230183544
2023-06-15

Compositions and methods for well cementing

#21
20230131837
2023-04-27

Mixture for pre-cementing operation in wellbore

#22
20230031506
2023-02-02

Wellbore servicing fluid and methods of making and using same

#23
20220389301
2022-12-08

Dissolvable sleeve for hydrocarbon well completions

#24
20220372838
2022-11-24

Method for forming high efficiency geothermal wellbores

#25
20220363971
2022-11-17

Spacer fluids and methods for cementing a casing in a wellbore

#26
20220356391
2022-11-10

Surfactant compositions comprising solid substrates for subterranean well operations

#27
20220290040
2022-09-15

Using acidic balls for acid stimulation in carbonate reservoirs

#28
20220275266
2022-09-01

Spacer fluids containing swellable abrasive particles

#29
20220169907
2022-06-02

Intentional degradation of hollow particles for annular pressure build-up mitigation

#30
20220127515
2022-04-28

Methods and compositions for consolidating sand in subsurface formations

#31
20220081603
2022-03-17

Downhole fluids and methods of use thereof

#32
20220073812
2022-03-10

DILUTED MICROEMULSIONS WITH LOW SURFACE TENSIONS

#33
20220065075
2022-03-03

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

#34
20220025242
2022-01-27

Compatible low crystalline silica spacers

#35
20220010192
2022-01-13

Methods of making and using a wellbore servicing fluid for controlling losses in permeable zones

#36
20210355366
2021-11-18

Wellbore Servicing Fluid and Methods of Making and Using Same

#37
20210309907
2021-10-07

Well treatment fluid having biodegradable fluid loss control agent

#38
20210269705
2021-09-02

Enhancing propped fracture conductivity in subterranean wells

#39
20210253930
2021-08-19

Well bore spacer and efficiency fluids comprising geopolymers

#40
20210253929
2021-08-19

Spacer fluids with stability at high temperatures

#41
20210198177
2021-07-01

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

#42
20210171826
2021-06-10

CONVERTING INVERT EMULSIONS TO EMULSIONS USING POLYVALENT SALTS OF POLYMERIC WEAK ACIDS

#43
20210139762
2021-05-13

Magnetorheological fluids and methods of using same

#44
20210131243
2021-05-06

Oil recovery method

#45
20210130675
2021-05-06

VISCOSITY MODIFIERS AND METHODS OF USE THEREOF

#46
20210071062
2021-03-11

Wellbore servicing composition with controlled gelation of cement kiln dust and methods of making and using same

#47
20210071061
2021-03-11

Agglomerated zeolite catalyst for spacers and efficiency fluids

#48
20210047555
2021-02-18

Compatible low crystalline silica spacers

#49
20210032525
2021-02-04

Spacer fluids and cement slurries that include surfactants

#50
20210025272
2021-01-28

Methods of determining wellbore integrity

#51
20200407621
2020-12-31

EMULSIFIED DRILLING FLUIDS AND METHODS OF MAKING AND USE THEREOF

#52
20200399524
2020-12-24

Mitigating annular pressure buildup with nanoporous metal oxides

#53
20200377779
2020-12-03

Sulfur-containing polyether surfactants for cement spacer fluids and other downhole applications

#54
20200369950
2020-11-26

METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS

#55
20200308477
2020-10-01

Downhole high temperature rheology control

#56
20200291285
2020-09-17

Development of retarded acid system

#57
20200270509
2020-08-27

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

#58
20200255718
2020-08-13

Method of using resin coated sized particulates as spacer fluid

#59
20200248061
2020-08-06

Lubricants for water-based drilling fluids

#60
20200231861
2020-07-23

Dry blend pre-flush and spacer package and method for mixing and injecting a pre-flush and spacer on-the-fly to clean a subterranean well

#61
20200224530
2020-07-16

Contrast enhancement agents for subterranean treatment fluids

#62
20200199443
2020-06-25

POLYMERIC SYSTEMS FOR PARTICLE DISPERSION

#63
20200190936
2020-06-18

Curing a lost circulation zone in a wellbore

#64
20200190389
2020-06-18

Methods for cementing well bores using cleaning fluids with nut shells

#65
20200181476
2020-06-11

Superhydrophobic additive

#66
20200181472
2020-06-11

Functionalized nanosilica as shale inhibitor in water-based fluids

#67
20200165504
2020-05-28

Spacer fluid compositions that include surfactants

#68
20200140744
2020-05-07

STIMULATING WELLS USING CO2, WATER BLOCK REMOVING AGENTS, AND/OR BREAKERS TO IMPROVE WELL PRODUCTION

#69
20200140740
2020-05-07

Use of solid surfactant composites in well cementing

#70
20200140739
2020-05-07

Methods of using drilling fluid compositions with enhanced rheology

#71
20200131424
2020-04-30

Annular pressure buildup mitigation using acid swellable polymer system

#72
20200123430
2020-04-23

NON-INVASIVE CEMENT SPACER FLUID COMPOSITIONS, SPACER FLUID PRODUCTS, METHODS OF WELL OPERATION AND WELL APPARATUS

#73
20200095491
2020-03-26

Development of anti-bit balling fluids

#74
20200087560
2020-03-19

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

#75
20200056083
2020-02-20

GEOPOLYMER COMPOSITIONS AS INORGANIC BINDING MATERIAL FOR FORMING PROPPANT AGGREGATES

#76
20200040247
2020-02-06

Development of anti-bit balling fluids

#77
20200032129
2020-01-30

Surfactant compositions comprising solid substrates for subterranean well operations

#78
20200011151
2020-01-09

Method for forming high efficiency geothermal wellbores

#79
20200010758
2020-01-09

Thermally-stable, non-precipitating, high-density wellbore fluids

#80
20200010751
2020-01-09

Application of metal oxide-based cements in wellbores

#81
20200002596
2020-01-02

Methods of cementing a wellbore with the use of an oil swellable elastomer

#82
20200002595
2020-01-02

Sulfur-containing polyether surfactants for cement spacer fluids and other downhole applications

#83
20190390099
2019-12-26

Downhole fluids and methods of use thereof

#84
20190367798
2019-12-05

Barrier pills containing viscoelastic surfactant and methods for using the same

#85
20190322922
2019-10-24

Fracturing a formation with mortar slurry

#86
20190316021
2019-10-17

Methods and compositions for use in oil and/or gas wells

#87
20190315674
2019-10-17

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

#88
20190309610
2019-10-10

Strengthening proppant on-the-fly during hydraulic fracturing treatments

#89
20190309210
2019-10-10

Development of anti-bit balling fluids

#90
20190292432
2019-09-26

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

#91
20190292431
2019-09-26

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

#92
20190284467
2019-09-19

Diluted microemulsions with low surface tensions

#93
20190264095
2019-08-29

In situ formed inorganic solids in fracture networks

#94
20190256758
2019-08-22

High densitiy clear brine fluids

#95
20190233710
2019-08-01

Compositions and methods for treating oil and gas wells

#96
20190233708
2019-08-01

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

#97
20190233707
2019-08-01

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

#98
20190203096
2019-07-04

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

#99
20190203095
2019-07-04

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

#100
20190202941
2019-07-04

Phosphonated polysaccharides and gels and process for making same

#101
20190195068
2019-06-27

Predicting properties of well bore treatment fluids

#102
20190194520
2019-06-27

Viscosifier for oil well fluids

#103
20190185740
2019-06-20

Polymeric systems for particle dispersion

#104
20190177603
2019-06-13

ENVIRONMENTALLY ACCEPTABLE SURFACTANT IN AQUEOUS-BASED STIMULATION FLUIDS

#105
20190169488
2019-06-06

Methods and compositions for stimulating the production of hydrocarbons from subterranean formations

#106
20190106619
2019-04-11

Enhanced propped fracture conductivity in subterranean wells

#107
20190092996
2019-03-28

DISPERSANT IN CEMENT FORMULATIONS FOR OIL AND GAS WELLS

#108
20190078417
2019-03-14

Curing a lost circulation zone in a wellbore

#109
20190048247
2019-02-14

Spacer fluids for cementing well bores

#110
20190010377
2019-01-10

Functionalized nanosilica as shale inhibitor in water-based fluids

#111
20180362826
2018-12-20

Oil-in-water stable, emulsified spacer fluids

#112
20180347316
2018-12-06

Multi-stage treatment for iron sulfide scales

#113
20180320498
2018-11-08

Enhancing propped complex fracture networks

#114
20180320063
2018-11-08

Development of retarded acid system

#115
20180320052
2018-11-08

Superhydrophobic additive

#116
20180320050
2018-11-08

Methods of using drilling fluid compositions with enhanced rheology

#117
20180312439
2018-11-01

Dispersant in cement formulations for oil and gas wells

#118
20180305601
2018-10-25

Methods and compositions for use in oil and/or gas wells

#119
20180291251
2018-10-11

Use of crosslinked polymer system for mitigation of annular pressure buildup

#120
20180282216
2018-10-04

Dispersant in cement formulations for oil and gas wells

#121
20180273823
2018-09-27

Colloidal dispersions (sols) for weighting agents in fluids

#122
20180265763
2018-09-20

Use of solid surfactant composites in well spacer fluids

#123
20180238168
2018-08-23

Contrast enhancement agents for subterranean treatment fluids

#124
20180230356
2018-08-16

Compositions and methods for servicing subterranean wells

#125
20180223175
2018-08-09

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

#126
20180223169
2018-08-09

Spacer fluid compositions that include surfactants

#127
20180223168
2018-08-09

Spacer fluids and cement slurries that include surfactants

#128
20180223167
2018-08-09

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

#129
20180223166
2018-08-09

Invert emulsion based drilling fluid and methods of using same

#130
20180223165
2018-08-09

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

#131
20180223162
2018-08-09

Development of anti-bit balling fluids

#132
20180223161
2018-08-09

Development of anti-bit balling fluids

#133
20180223160
2018-08-09

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

#134
20180223159
2018-08-09

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

#135
20180223158
2018-08-09

Drilling fluid compositions with enhanced rheology and methods of using same

#136
20180223156
2018-08-09

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

#137
20180223153
2018-08-09

Lubricants for water-based drilling fluids

#138
20180222797
2018-08-09

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

#139
20180222796
2018-08-09

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

#140
20180171206
2018-06-21

Amphiphilic polymers for filtrate control

#141
20180171205
2018-06-21

Mitigation of annular pressure build-up using treatment fluids comprising calcium aluminate cement

#142
20180171203
2018-06-21

Suspending agents obtained by micellar polymerization

#143
20180171199
2018-06-21

NANOFIBRILLATED CELLULOSE FOR USE IN FLUIDS FOR PRIMARY OIL RECOVERY

#144
20180118991
2018-05-03

Viscous water-based composition

#145
20180105737
2018-04-19

Activator for breaking system in high-temperature fracturing fluids

#146
20180087377
2018-03-29

Methods for formulating a cement slurry for use in a subterranean salt formation using geometric modeling

#147
20180044569
2018-02-15

Compositions and methods for servicing subterranean wells

#148
20180037796
2018-02-08

Wellbore additives that include liquid-infiltrated porous silica

#149
20180037795
2018-02-08

Downhole fluids and methods of use thereof

#150
20180037792
2018-02-08

Methods and compositions for use in oil and/or gas wells

#151
20180010032
2018-01-11

Compositions and methods for completing subterranean wells

#152
20170369758
2017-12-28

Methods of using lost circulation treatment materials comprising brown mud

#153
20170292055
2017-10-12

Method of increasing the density of a well treatment brine

#154
20170283679
2017-10-05

Salt-free fluorous-invert emulsion fluid

#155
20170275518
2017-09-28

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

#156
20170253786
2017-09-07

Additive of chemically-modified cellulose nanofibrils or cellulose nanocrystals

#157
20170247983
2017-08-31

METHODS FOR MITIGATING ANNULAR PRESSURE BUILDUP IN A WELLBORE USING MATERIALS HAVING A NEGATIVE COEFFICIENT OF THERMAL EXPANSION

#158
20170247605
2017-08-31

Thermally-stable, non-precipitating, high-density wellbore fluids

#159
20170240790
2017-08-24

Rare earth-containing compounds to enhance performance of downhole treatment compositions

#160
20170226407
2017-08-10

Composition comprising ultrafine cellulose fibers

#161
20170226399
2017-08-10

Subterranean formation processing composition comprising ultrafine cellulose fibers

#162
20170226398
2017-08-10

Composition comprising ultrafine cellulose fibers

#163
20170218756
2017-08-03

Predicting properties of well bore treatment fluids

#164
20170218250
2017-08-03

Functionalized nanosilica as shale inhibitor in water-based fluids

#165
20170210968
2017-07-27

RESERVOIR TREATMENT FLUID

#166
20170191008
2017-07-06

Microemulsions and their use in metal working fluids, wood stains, or wood sealers

#167
20170190952
2017-07-06

Multiple hydrophilic head corrosion inhibitors

#168
20170183964
2017-06-29

Methods for formulating a cement slurry for use in a subterranean salt formation using geometric modeling

#169
20170166801
2017-06-15

Solvent systems having a high flash point and methods of use thereof

#170
20170158946
2017-06-08

Methods of simultaneously introducing a curable resin and curing agent with delayed curing

#171
20170158943
2017-06-08

Compositions and methods for treating oil and gas wells

#172
20170130118
2017-05-11

Traceable polymeric additives for use in subterranean formations

#173
20170130117
2017-05-11

Traceable polymeric additives for use in subterranean formations

#174
20170114266
2017-04-27

Rare earth-containing compounds to enhance performance of downhole treatment compositions

#175
20170088769
2017-03-30

AQUEOUS GUAR COMPOSITIONS FOR USE IN OIL FIELD AND SLICKWATER APPLICATIONS

#176
20170081581
2017-03-23

Cement oil-based mud spacer formulation

#177
20170073574
2017-03-16

Methods of producing particles having two different properties

#178
20170073564
2017-03-16

Methods and compositions for use in oil and/or gas wells

#179
20170058182
2017-03-02

Method of treating water-swellable minerals in a subterranean formation with a stabilizing compound with a cationic group and hydrophobic portion

#180
20170037301
2017-02-09

Polymeric surfactant containing a protein head group and lipid tail group

#181
20160369152
2016-12-22

SETTABLE SPACER FLUIDS COMPRISING PUMICITE AND METHODS OF USING SUCH FLUIDS IN SUBTERRANEAN FORMATIONS

#182
20160362502
2016-12-15

Phosphonated polysaccharides and gels and process for making same

#183
20160339624
2016-11-24

Equipment and Methods for Preparing Curved Fibers

#184
20160304773
2016-10-20

Wellbore servicing methods and compositions comprising degradable polymers

#185
20160298028
2016-10-13

Wellbore servicing materials and methods of making and using same

#186
20160289528
2016-10-06

PROTEIN-BASED FIBROUS BRIDGING MATERIAL AND PROCESS AND SYSTEM FOR TREATING A WELLBORE

#187
20160272870
2016-09-22

Aqueous suspensions of silica additives

#188
20160265306
2016-09-15

Cement isolation fluids for wellbores, methods of making, and methods of use

#189
20160264838
2016-09-15

Cement spacer system for wellbores, methods of making, and methods of use

#190
20160264837
2016-09-15

Segregating fluids, methods of making, and methods of use

#191
20160237772
2016-08-18

Wellbore fluids comprising hydrated inorganic oxide materials and associated methods

#192
20160237336
2016-08-18

Dual breaker system for reducing formation damage during fracturing

#193
20160230069
2016-08-11

Environmental friendly well treatment fluids comprising an ester

#194
20160230065
2016-08-11

Dual-purpose viscosifier and surface active additives and methods of use

#195
20160222275
2016-08-04

Wellbore fluid additives of fibrillated fibers and methods of use

#196
20160215198
2016-07-28

Multiple hydrophilic head corrosion inhibitors

#197
20160194550
2016-07-07

Methods and compositions for stimulating the production of hydrocarbons from subterranean formations

#198
20160168443
2016-06-16

NANOCELLULOSE MATERIALS FOR OILFIELD APPLICATIONS

#199
20160130499
2016-05-12

Magnetic proppant particulates for use in subterranean formation operations

#200
20160130495
2016-05-12

Method of using sized particulates as spacer fluid

#201
20160122616
2016-05-05

Compositions and methods for servicing subterranean wells

#202
20160108303
2016-04-21

Viscoelastic surfactants in mixed brines

#203
20160090523
2016-03-31

Oil-in-water stable, emulsified spacer fluids

#204
20160068734
2016-03-10

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

#205
20160060502
2016-03-03

Compositions and Methods for Completing Subterranean Wells

#206
20160060500
2016-03-03

Composition and Methods for Completing Subterranean Wells

#207
20160046854
2016-02-18

Traceable polymeric additives for use in subterranean formations

#208
20160032168
2016-02-04

Viscosifier for oil well fluids

#209
20160010424
2016-01-14

Magnetorheological fluids and methods of using same

#210
20150377011
2015-12-31

Tracers for formation analysis

#211
20150329767
2015-11-19

Methods and compositions for use in oil and/or gas wells

#212
20150322327
2015-11-12

Sugar Cane Ash in Spacer Fluids

#213
20150299552
2015-10-22

NOVEL WEIGHT MATERIALS FOR USE IN CEMENT, SPACER AND DRILLING FLUIDS

#214
20150247383
2015-09-03

Consolidating spacer fluids and methods of use

#215
20150240142
2015-08-27

Compositions and Methods for Completing Subterranean Wells

#216
20150191983
2015-07-09

Wellbore fluid used with oil-swellable elements

#217
20150184057
2015-07-02

Alkyl Polyglycoside Derivative as Biodegradable Spacer Surfactant

#218
20150166875
2015-06-18

HYDRATABLE POLYMER SYSTEM BASED ON A CHIA DERIVED GELLING AGENT AND METHODS FOR MAKING AND USING SAME

#219
20150141300
2015-05-21

Fluorous additives for use in a fluorous-based treatment fluid

#220
20150107839
2015-04-23

Compositions and Methods for Completing Subterranean Wells

#221
20150107838
2015-04-23

Consolidating Spacer Fluids and Methods of Use

#222
20150099674
2015-04-09

Method and Composition for Curing Lost Circulation

#223
20150080272
2015-03-19

Alkyl polyglycoside derivative as biodegradable spacer surfactant

#224
20150024976
2015-01-22

Predicting properties of well bore treatment fluids

#225
20150013988
2015-01-15

Mitigating annular pressure buildup using temperature-activated polymeric particulates

#226
20150011442
2015-01-08

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

#227
20150005204
2015-01-01

Methods of using downhole compositions including an ion-sequestering compound

#228
20140367107
2014-12-18

Methods and compositions for stimulating the production of hydrocarbons from subterranean formations

#229
20140367103
2014-12-18

Compositions and methods for completing subterranean wells

#230
20140342952
2014-11-20

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

#231
20140284057
2014-09-25

Methods and compositions for use in oil and/or gas wells

#232
20140284053
2014-09-25

Methods and compositions for use in oil and/or gas wells

#233
20140262348
2014-09-18

Method of using gelled fluids with defined specific gravity

#234
20140262268
2014-09-18

Drilling and Completion Applications of Magnetorheological Fluid Barrier Pills

#235
20140213490
2014-07-31

Wellbore servicing compositions and methods of making and using same

#236
20140166285
2014-06-19

NOVEL WEIGHTED ELASTOMER SYSTEMS FOR USE IN CEMENT, SPACER AND DRILLING FLUIDS

#237
20140107253
2014-04-17

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#238
20140107252
2014-04-17

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#239
20140087975
2014-03-27

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

#240
20140083699
2014-03-27

Placing a fluid comprising kiln dust in a wellbore through a bottom hole assembly

#241
20140076565
2014-03-20

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

#242
20140060841
2014-03-06

Fluorous additives for use in a fluorous-based treatment fluid

#243
20140060835
2014-03-06

Invert emulsion transition fluid containing calcium aluminate cement

#244
20140060818
2014-03-06

Method of analysis of polymerizable monomeric species in a complex mixture

#245
20130312968
2013-11-28

Subterranean treatment fluid composition and method of treatment

#246
20130303412
2013-11-14

Viscosified fluid loss control agent utilizing chelates

#247
20130244913
2013-09-19

COMPOSITION AND METHOD OF CONVERTING A FLUID FROM OIL EXTERNAL TO WATER EXTERNAL FOR CLEANING A WELLBORE

#248
20130244911
2013-09-19

Foamed spacer fluids containing cement kiln dust and methods of use

#249
20130233538
2013-09-12

Methods and systems for evaluating a boundary between a consolidating spacer fluid and a cement composition

#250
20130180716
2013-07-18

Settable spacer fluids comprising pumicite and methods of using such fluids in subterranean formations

#251
20130157903
2013-06-20

Spacer fluids containing cement kiln dust and methods of use

#252
20130153214
2013-06-20

Compositions containing kiln dust and/or biowaste ash and methods of use

#253
20130092376
2013-04-18

Cement oil-based mud spacer formulation

#254
20130048285
2013-02-28

Compositions and methods for cleaning subterranean boreholes

#255
20130035263
2013-02-07

Agent and composition for oilfield applications

#256
20130005626
2013-01-03

Surfactant compositions

#257
20120329684
2012-12-27

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

#258
20120322698
2012-12-20

TREATMENT FLUIDS COMPRISING PUMICITE AND METHODS OF USING SUCH FLUIDS IN SUBTERRANEAN FORMATIONS

#259
20120305250
2012-12-06

Non-invasive cement spacer fluid compositions, spacer fluid products, methods of well operation and well apparatus

#260
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2012-11-08

Water-based fluid loss additive containing an amphiphilic dispersant for use in a well

#261
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2012-10-25

Foamed spacer fluids containing cement kiln dust and methods of use

#262
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2012-10-11

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

#263
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2012-10-04

Treatment Fluids Comprising Vitrified Shale and Methods of Using Such Fluids in Subterranean Formations

#264
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2012-08-30

Non-aqueous, acid soluble, high-density completion fluids and process

#265
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2012-08-02

Lost circulation compositions and associated methods

#266
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2012-07-26

Method and composition to prevent fluid mixing in pipe

#267
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2012-07-26

Cement compositions and methods utilizing nano-clay

#268
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2012-07-19

Nanohybrid phase interfaces for altering wettability in oil field applications

#269
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2012-07-05

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#270
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2012-07-05

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#271
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2012-05-24

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

#272
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2012-04-19

MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT

#273
20120090846
2012-04-19

MODIFICATION OF SOLID POLYSACCHARIDE WITH TRANSESTERIFICATION AGENT

#274
20120090842
2012-04-19

Methods and compositions for suspending fluids in a wellbore

#275
20120073813
2012-03-29

Weight materials for use in cement, spacer and drilling fluids

#276
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2011-12-22

Water-based fluid loss additive containing an amphiphilic dispersant for use in a well

#277
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2011-11-24

Increasing the viscosity of viscoelastic fluids

#278
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2011-11-10

Compositions for modifying rheological properties of cement systems

#279
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2011-10-20

Electrically conductive oil-based drilling fluids

#280
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2011-09-29

ADDITIVE AND METHOD FOR SERVICING SUBTERRANEAN WELLS

#281
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2011-09-15

APPLICATION OF ALKALINE FLUIDS FOR POST-FLUSH OR POST-TREATMENT OF A STIMULATED SANDSTONE MATRIX

#282
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2011-09-08

PARTICULATE BRIDGING AGENTS USED FOR FORMING AND BREAKING FILTERCAKES ON WELLBORES

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20110183871
2011-07-28

Method and composition for curing lost circulation

#284
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2011-07-14

Treatment Fluids Comprising Vitrified Shale and Methods of Using Such Fluids in Subterranean Formations

#285
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2011-07-07

Lost circulation compositions and associated methods

#286
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2011-06-30

Compressible packer fluids and methods of making and using same

#287
20110118381
2011-05-19

Inverse emulsion polymers as lost circulation material

#288
20110094746
2011-04-28

Swellable spacer fluids and associated methods

#289
20110082058
2011-04-07

Method for preparing curved fibers

#290
20110077324
2011-03-31

CEMENT COMPOSITIONS COMPRISING A HIGH-DENSITY PARTICULATE ELASTOMER AND ASSOCIATED METHODS

#291
20110048716
2011-03-03

Treatment fluids comprising transient polymer networks

#292
20110046025
2011-02-24

Low molecular weight graft copolymers for scale control

#293
20110028594
2011-02-03

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#294
20110028593
2011-02-03

Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use

#295
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2011-02-03

Visco-elastic surfactant spacers

#296
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2011-01-27

Spacer fluids containing cement kiln dust and methods of use

#297
20110005758
2011-01-13

Method and composition for curing lost circulation

#298
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2010-12-09

Methods and compositions for viscosifying heavy aqueous brines

#299
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2010-12-09

Engineered fibers for well treatments

#300
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2010-10-21

Microemulsions used as spacer fluids