ClassID:

104283

C09K8/424 - 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; Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells using "spacer" compositions

Recent Application in this class:
#1
20260043307
2026-02-12

SYSTEM AND METHOD FOR LEAK PREVENTION

#2
20250382515
2025-12-18

Cementing Compositions For Plugging Very Large Fracture Widths

#3
20250320399
2025-10-16

METHODS FOR CEMENTING WELLBORES UTILIZING SPACER FLUIDS THAT INCLUDE SURFACTANT PACKAGES

#4
20250282988
2025-09-11

SPACER FLUIDS CONTAINING SWELLABLE ABRASIVE PARTICLES

#5
20250215304
2025-07-03

WELLBORE SERVICING COMPOSITIONS CONTAINING A LATEX ADDITIVE

#6
20250122417
2025-04-17

THERMALLY STABLE ADDITIVE FOR WELLBORE TREATMENTS

#7
20240425742
2024-12-26

High Temperature Suspension Additive For Wellbore Treatments

#8
20240301764
2024-09-12

Method for Forming High Efficiency Geothermal Wellbores

#9
20240287375
2024-08-29

COMPOSITIONS AND METHODS FOR WELL CEMENTING

#10
20240254384
2024-08-01

METHOD FOR OBTAINING BIO-SOURCED (METH)ALLYLSULFONATE ALKALI SALT

#11
20240191138
2024-06-13

SURFACTANT IMPREGNATED LOST CIRCULATION, SCRUBBING, AND SCOURING MATERIAL

#12
20240059950
2024-02-22

Cement spacer fluid with polyethyleneimine hydrochloride salt as a shale inhibitor

#13
20240052233
2024-02-15

CEMENT SLURRY WITH POLYETHYLENEIMINE HYDROCHLORIDE SALT AS A SHALE INHIBITOR

#14
20240018408
2024-01-18

Compositions and methods for well cementing

#15
20230358132
2023-11-09

METHODS OF DETERMINING WELLBORE INTEGRITY

#16
20230193108
2023-06-22

Compositions and methods for well cementing

#17
20230183544
2023-06-15

Compositions and methods for well cementing

#18
20230174842
2023-06-08

Method of artificially reducing porosity

#19
20230145502
2023-05-11

Surfactant impregnated lost circulation, scrubbing, and scouring material

#20
20230136283
2023-05-04

Mixture with pozzolanic material for controlling annular pressure-buildup in a wellbore

#21
20230082853
2023-03-16

Liquid plug for wellbore operations

#22
20220372838
2022-11-24

Method for forming high efficiency geothermal wellbores

#23
20220363971
2022-11-17

Spacer fluids and methods for cementing a casing in a wellbore

#24
20220316297
2022-10-06

Fluids having increased magnetic permeability for subterranean tool activation

#25
20220275266
2022-09-01

Spacer fluids containing swellable abrasive particles

#26
20220259481
2022-08-18

ELASTICATOR AND PREPARATION METHOD THEREOF AND CASING EXPANSION LOSS PREVENTION ELASTIC SPACER FLUID FOR CEMENTING

#27
20220025242
2022-01-27

Compatible low crystalline silica spacers

#28
20210309907
2021-10-07

Well treatment fluid having biodegradable fluid loss control agent

#29
20210253930
2021-08-19

Well bore spacer and efficiency fluids comprising geopolymers

#30
20210130675
2021-05-06

VISCOSITY MODIFIERS AND METHODS OF USE THEREOF

#31
20210071062
2021-03-11

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

#32
20210047555
2021-02-18

Compatible low crystalline silica spacers

#33
20210032525
2021-02-04

Spacer fluids and cement slurries that include surfactants

#34
20210025272
2021-01-28

Methods of determining wellbore integrity

#35
20200407621
2020-12-31

EMULSIFIED DRILLING FLUIDS AND METHODS OF MAKING AND USE THEREOF

#36
20200377779
2020-12-03

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

#37
20200308477
2020-10-01

Downhole high temperature rheology control

#38
20200291285
2020-09-17

Development of retarded acid system

#39
20200248061
2020-08-06

Lubricants for water-based drilling fluids

#40
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

#41
20200190389
2020-06-18

Methods for cementing well bores using cleaning fluids with nut shells

#42
20200165504
2020-05-28

Spacer fluid compositions that include surfactants

#43
20200140739
2020-05-07

Methods of using drilling fluid compositions with enhanced rheology

#44
20200131424
2020-04-30

Annular pressure buildup mitigation using acid swellable polymer system

#45
20200123430
2020-04-23

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

#46
20200095491
2020-03-26

Development of anti-bit balling fluids

#47
20200087560
2020-03-19

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

#48
20200056083
2020-02-20

GEOPOLYMER COMPOSITIONS AS INORGANIC BINDING MATERIAL FOR FORMING PROPPANT AGGREGATES

#49
20200040247
2020-02-06

Development of anti-bit balling fluids

#50
20200017748
2020-01-16

Methods for in situ formation of high glass transition temperature polymers

#51
20200011151
2020-01-09

Method for forming high efficiency geothermal wellbores

#52
20200010751
2020-01-09

Application of metal oxide-based cements in wellbores

#53
20200002595
2020-01-02

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

#54
20190383115
2019-12-19

Well apparatus and associated methods

#55
20190360321
2019-11-28

In situ monitoring of cement slurry locations and setting processes

#56
20190352983
2019-11-21

Thixotropic cement slurry and placement method to cure lost circulation

#57
20190309210
2019-10-10

Development of anti-bit balling fluids

#58
20190300776
2019-10-03

Settable compositions comprising cement kiln dust and methods of use

#59
20190292432
2019-09-26

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

#60
20190292431
2019-09-26

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

#61
20190233708
2019-08-01

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

#62
20190233707
2019-08-01

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

#63
20190203096
2019-07-04

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

#64
20190203095
2019-07-04

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

#65
20190195068
2019-06-27

Predicting properties of well bore treatment fluids

#66
20190185729
2019-06-20

Treatment fluids comprising calcium aluminate cement and methods of use

#67
20190106952
2019-04-11

Thixotropic cement slurry and placement method to cure lost circulation

#68
20190092996
2019-03-28

DISPERSANT IN CEMENT FORMULATIONS FOR OIL AND GAS WELLS

#69
20190023965
2019-01-24

COMPOSITIONS AND METHODS FOR WELL CEMENTING

#70
20180355236
2018-12-13

Surfactants for use in liquid suspensions of lightweight beads

#71
20180320063
2018-11-08

Development of retarded acid system

#72
20180320050
2018-11-08

Methods of using drilling fluid compositions with enhanced rheology

#73
20180312439
2018-11-01

Dispersant in cement formulations for oil and gas wells

#74
20180282216
2018-10-04

Dispersant in cement formulations for oil and gas wells

#75
20180274327
2018-09-27

Chemical means to predict end of job in reverse-circulation cementing

#76
20180223175
2018-08-09

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

#77
20180223169
2018-08-09

Spacer fluid compositions that include surfactants

#78
20180223168
2018-08-09

Spacer fluids and cement slurries that include surfactants

#79
20180223167
2018-08-09

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

#80
20180223166
2018-08-09

Invert emulsion based drilling fluid and methods of using same

#81
20180223165
2018-08-09

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

#82
20180223162
2018-08-09

Development of anti-bit balling fluids

#83
20180223161
2018-08-09

Development of anti-bit balling fluids

#84
20180223160
2018-08-09

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

#85
20180223159
2018-08-09

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

#86
20180223158
2018-08-09

Drilling fluid compositions with enhanced rheology and methods of using same

#87
20180223156
2018-08-09

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

#88
20180223153
2018-08-09

Lubricants for water-based drilling fluids

#89
20180222797
2018-08-09

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

#90
20180222796
2018-08-09

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

#91
20180148630
2018-05-31

WELL CEMENTING COMPOSITIONS AND METHODS

#92
20180044569
2018-02-15

Compositions and methods for servicing subterranean wells

#93
20180037796
2018-02-08

Wellbore additives that include liquid-infiltrated porous silica

#94
20170313926
2017-11-02

Treatment fluids comprising calcium aluminate cement and methods of use

#95
20170226399
2017-08-10

Subterranean formation processing composition comprising ultrafine cellulose fibers

#96
20170218756
2017-08-03

Predicting properties of well bore treatment fluids

#97
20170210968
2017-07-27

RESERVOIR TREATMENT FLUID

#98
20170204718
2017-07-20

Systems and methods for in situ monitoring of cement slurry locations and setting processes thereof

#99
20160369152
2016-12-22

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

#100
20160348462
2016-12-01

Article for removing contaminants from a fluid, and related methods

#101
20160289533
2016-10-06

Settable compositions comprising cement kiln dust and methods of use

#102
20160264838
2016-09-15

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

#103
20160264837
2016-09-15

Segregating fluids, methods of making, and methods of use

#104
20160069153
2016-03-10

GEL, LEAKING STOPPAGE METHOD USING THE SAME AND WELL KILL LEAKING STOPPAGE METHOD USING THE SAME

#105
20160060500
2016-03-03

Composition and Methods for Completing Subterranean Wells

#106
20150344766
2015-12-03

Enhanced wellbore strengthening solution

#107
20150252243
2015-09-10

USE OF SALTS OF POLYCARBOXYLATES WITH LIPOPHILIC INCREMENTS TO CONTROL SEPARATION IN CEMENT CONTAINING LATEX

#108
20150247383
2015-09-03

Consolidating spacer fluids and methods of use

#109
20150184060
2015-07-02

Methods for determining reactive index for cement kiln dust, associated compositions and methods of use

#110
20150166869
2015-06-18

Enhanced acid soluble wellbore strengthening solution

#111
20150159076
2015-06-11

Acid soluble defluidizing pills

#112
20150107839
2015-04-23

Compositions and Methods for Completing Subterranean Wells

#113
20150024976
2015-01-22

Predicting properties of well bore treatment fluids

#114
20140367103
2014-12-18

Compositions and methods for completing subterranean wells

#115
20140357536
2014-12-04

Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids

#116
20140326446
2014-11-06

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

#117
20140213488
2014-07-31

Wellbore fluids comprising mineral particles and methods relating thereto

#118
20140209392
2014-07-31

Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto

#119
20140083699
2014-03-27

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

#120
20140076565
2014-03-20

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

#121
20140060835
2014-03-06

Invert emulsion transition fluid containing calcium aluminate cement

#122
20130319672
2013-12-05

Methods of Using Wellbore Servicing Compositions

#123
20130180716
2013-07-18

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

#124
20130157903
2013-06-20

Spacer fluids containing cement kiln dust and methods of use

#125
20130153214
2013-06-20

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

#126
20130048286
2013-02-28

Methods for determining reactive index for cement kiln dust, associated compositions, and methods of use

#127
20130048285
2013-02-28

Compositions and methods for cleaning subterranean boreholes

#128
20130020081
2013-01-24

Invert emulsion fluid containing a hygroscopic liquid, a polymeric suspending agent, and low-density solids

#129
20120322698
2012-12-20

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

#130
20120305250
2012-12-06

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

#131
20120267107
2012-10-25

Foamed spacer fluids containing cement kiln dust and methods of use

#132
20120241155
2012-09-27

Compositions and methods for cleaning a wellbore prior to cementing

#133
20120186815
2012-07-26

Method and composition to prevent fluid mixing in pipe

#134
20110094746
2011-04-28

Swellable spacer fluids and associated methods

#135
20110024113
2011-02-03

Visco-elastic surfactant spacers

#136
20110017452
2011-01-27

Spacer fluids containing cement kiln dust and methods of use

#137
20100243236
2010-09-30

Nanoparticle-densified Newtonian fluids for use as cementation spacer fluids and completion spacer fluids in oil and gas wells

#138
20100062953
2010-03-11

RHEOLOGY MODIFYING AGENTS AND METHODS OF MODIFYING FLUID RHEOLOGY USE IN HYDROCARBON RECOVERY

#139
20100044057
2010-02-25

Treatment Fluids Comprising Pumicite and Methods of Using Such Fluids in Subterranean Formations

#140
20090071649
2009-03-19

WELLBORE FLUIDS FOR CEMENT DISPLACEMENT OPERATIONS

#141
20090062158
2009-03-05

RHEOLOGY MODIFYING AGENTS AND METHODS OF MODIFYING FLUID RHEOLOGY USE IN HYDROCARBON RECOVERY

#142
20080099202
2008-05-01

Method of cementing well bores

#143
20080060820
2008-03-13

Method to control the physical interface between two or more fluids

#144
20080060811
2008-03-13

METHOD TO CONTROL THE PHYSICAL INTERFACE BETWEEN TWO OR MORE FLUIDS

#145
20060270565
2006-11-30

Subterranean fluids having improved environmental characteristics and methods of using these fluids in subterranean formations

#146
20060270564
2006-11-30

Subterranean fluids and methods of using these fluids in subterranean formations

#147
20060258545
2006-11-16

Well completion spacer fluids containing fibers

#148
20060217270
2006-09-28

Wellbore servicing fluids comprising resilient material

#149
20060131019
2006-06-22

Methods of using cement compositions comprising phosphate compounds in subterranean formations

#150
20060111246
2006-05-25

Aqueous storable cement spacer system

#151
20060054320
2006-03-16

Subterranean fluids having improved environmental characteristics and methods of using these fluids in subterranean formations

#152
20050034867
2005-02-17

Subterranean fluids and methods of cementing in subterranean formations

#153
20050034866
2005-02-17

Subterranean fluids and methods of using these fluids in subterranean formations

#154
17816865
2023-11-07

Cement spacer fluid with polyethyleneimine hydrochloride salt as a shale inhibitor

#155
16563479
2020-08-25

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

#156
16023155
2019-11-19

Cement spacer fluid comprising quaternary surfactant, viscosifier, and proppant