ClassID:

135375

E21B21/003 - CPC Classification

Classification description:

Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor Means for stopping loss of drilling fluid

Recent Application in this class:
#1
20260139558
2026-05-21

IDENTIFYING LOST-CIRCULATION EVENTS IN DOWNHOLE DRILLING SYSTEMS

#2
20260132326
2026-05-14

METHODS OF SERVICING A WELLBORE WITH COMPOSITIONS COMPRISING A SUSPENSION OF METAL OXIDE AND A SALT SOLUTION

#3
20260042952
2026-02-12

LOST CIRCULATION COMPOSITIONS COMPRISING RED MUD

#4
20260036005
2026-02-05

MID-STRING MUD CAP DOWNHOLE TOOL AND METHODS OF USE

#5
20260015920
2026-01-15

Temporary Isolation System for Reservoirs

#6
20250382516
2025-12-18

CORE-SHELL PARTICLES FOR SUBTERRANEAN OPERATIONS

#7
20250382515
2025-12-18

Cementing Compositions For Plugging Very Large Fracture Widths

#8
20250376901
2025-12-11

METHODS AND COMPOSITIONS FOR VOLCANIC ASH LOST CIRCULATION MATERIALS

#9
20250368881
2025-12-04

POURABLE WETTING AGENTS AND METHODS ASSOCIATED THEREWITH

#10
20250361779
2025-11-27

FIELD OPERATIONS FRAMEWORK

#11
20250361778
2025-11-27

EXPANDABLE WELLBORE LOSS CONTROL PATCH

#12
20250341137
2025-11-06

PROVIDING LOST CIRCULATION MATERIAL TO CURE FLUID LOSSES IN A WELL

#13
20250314141
2025-10-09

FLUID LOSS CONTROL ADDITIVES FOR DRILLING FLUIDS

#14
20250305377
2025-10-02

LOST CIRCULATION MATERIAL COMPOSITIONS UTILIZING SPENT DRILLING FLUIDS AND METHODS FOR USING THE SAME

#15
20250263598
2025-08-21

WELLBORE FLUIDS INCLUDING FLUID LOSS MATERIALS, AND RELATED METHODS

#16
20250257622
2025-08-14

PLUGGING ASSEMBLIES FOR PLUGGING CASED WELLBORES

#17
20250243720
2025-07-31

Lost Circulation Material Comprising Reclaimed Fiberglass Wind Turbine Blades

#18
20250236780
2025-07-24

LOW DENSITY OIL-BASED WELLBORE FLUIDS AND METHODS THEREOF

#19
20250223878
2025-07-10

METHOD AND APPARATUS FOR DELIVERING AND SETTING A EUTECTIC ALLOY PLUG TO CURE LOSS-OF-CIRCULATION IN DRILLING APPLICATIONS

#20
20250223488
2025-07-10

DEGRADABLE LOST CIRCULATION MATERIAL FOR PROTECTION OIL AND GAS RESERVOIRS, AND PREPARATION METHOD AND USE THEREOF

#21
20250223486
2025-07-10

METHODS OF FORMING ORGANOPHILIC FLUID LOSS MATERIALS, AND RELATED ORGANOPHILIC FLUID LOSS MATERIALS AND METHODS

#22
20250215304
2025-07-03

WELLBORE SERVICING COMPOSITIONS CONTAINING A LATEX ADDITIVE

#23
20250198245
2025-06-19

SYSTEMS AND METHODS USING EXPANDABLE GROUT FOR IMPROVED LOST CIRCULATION CONTROL

#24
20250197711
2025-06-19

METHODS OF SERVICING A WELLBORE WITH COMPOSITIONS COMPRISING A SUSPENSION OF METAL OXIDE AND A SALT SOLUTION

#25
20250188337
2025-06-12

SELF-DEGRADING ORGANOGELS

#26
20250179342
2025-06-05

DRILLING FLUIDS INCLUDING A VISCOSIFIER, AND RELATED METHODS

#27
20250171675
2025-05-29

CROSSLINKED SYNTHETIC POLYMER-BASED RESERVOIR DRILLING FLUID

#28
20250166648
2025-05-22

SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS

#29
20250163766
2025-05-22

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

#30
20250163311
2025-05-22

Thixotropic Cement Slurry with Graphene Oxide

#31
20250146713
2025-05-08

Forming High-Efficiency Geothermal Wellbores

#32
20250137334
2025-05-01

IDENTIFYING LOST-CIRCULATION EVENTS IN DOWNHOLE DRILLING SYSTEMS

#33
20250137333
2025-05-01

DETERMINING CLEAN-UP CHARACTERISTICS FOR DESIGNING WELLBORE FLUID

#34
20250109642
2025-04-03

METHODS OF RADIATION ACTIVATED LOST CIRCULATION MATERIAL PREVENTION

#35
20250101819
2025-03-27

System for optimizing particle size distribution of lost circulation materials

#36
20250084713
2025-03-13

METHODS OF USING MULTI-PARTICLE LOST CIRCULATION MATERIAL IN HIGHLY POROUS OR FRACTURED FORMATIONS

#37
20250067132
2025-02-27

PROVIDING LOST CIRCULATION MATERIAL TO CURE FLUID LOSSES IN A WELL

#38
20250059874
2025-02-20

METHOD AND SYSTEM FOR SELECTING LOST CIRCULATION MATERIALS FOR BORING A WELL

#39
20250059838
2025-02-20

Encapsulated lost circulation materials based on swellable elastomers

#40
20250059837
2025-02-20

Encapsulated lost circulation materials based on shape-memory polymer foam

#41
20240426181
2024-12-26

METHOD AND APPARATUS FOR DOWNHOLE IN-SITU MIXING USING DUAL, CONCENTRIC FLOW CHANNELS

#42
20240401421
2024-12-05

Lost circulation eutectoid alloy downhole deployment tool

#43
20240392179
2024-11-28

APPARATUS UTILIZING SHAPE-MEMORY AND SELF-ASSEMBLY TO PLUG RELATIVELY WIDE REMOTE FRACTURES

#44
20240384152
2024-11-21

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

#45
20240376791
2024-11-14

ASSESSING CURABILITY IN LOST CIRCULATION EVENTS

#46
20240376368
2024-11-14

THIXOTROPIC SLURRY WITH ENHANCED RELIABILITY FOR USE IN A WELLBORE

#47
20240376367
2024-11-14

THIXOTROPIC SLURRY WITH ENHANCED RELIABILITY FOR USE IN A WELLBORE

#48
20240368960
2024-11-07

WELLBORE OPERATIONS SYSTEM AND METHOD

#49
20240318063
2024-09-26

Methods and compositions for carbon dioxide-foamed lost circulation materials

#50
20240318062
2024-09-26

METHODS AND COMPOSITIONS FOR NITROGEN-FOAMED LOST CIRCULATION MATERIALS

#51
20240309262
2024-09-19

METHOD AND COMPOSITION FOR SUBSURFACE WELL INTERVENTION TO REDUCE WELL FLUID LOSS

#52
20240294820
2024-09-05

Loss circulation material

#53
20240263531
2024-08-08

DRILLING FLUIDS AND METHODS RELATED THERETO

#54
20240247554
2024-07-25

CONTROLLING LOST CIRCULATION WHILE DRILLING

#55
20240247179
2024-07-25

Curing lost circulation of water-based drilling muds

#56
20240199940
2024-06-20

Thixotropic slurry with enhanced reliability for use in a wellbore

#57
20240191138
2024-06-13

SURFACTANT IMPREGNATED LOST CIRCULATION, SCRUBBING, AND SCOURING MATERIAL

#58
20240166937
2024-05-23

FLUID LOSS CONTROL PILLS USING CALCIUM CARBONATE PARTICLES FORMED FROM SEQUESTERED CARBON DIOXIDE

#59
20240158685
2024-05-16

Method and composition for subsurface well intervention to reduce well fluid loss

#60
20240067857
2024-02-29

HOST-GUEST LOST-CIRCULATION MATERIALS FOR SEALING LOST CIRCULATION ZONES IN WELLBORES

#61
20240060388
2024-02-22

Drilling stabilizers with dissolvable windows for controlled release of chemicals

#62
20240059956
2024-02-22

Modified vegetable oil as fluid loss control additive

#63
20240026205
2024-01-25

DRILLING FLUID, DRILLING METHOD, AND DRILLING FLUID ADDITIVE

#64
20240018844
2024-01-18

System for maintaining reversible dynamic range control information associated with parametric audio coders

#65
20240010904
2024-01-11

High temperature and high salinity-resistant complementarily rigid-flexible plugging agent and method for preparing the same and water-based drilling fluid and use thereof

#66
20240010903
2024-01-11

DEEP EUTECTIC SOLVENTS

#67
20240003205
2024-01-04

REDUCING LOSS CIRCULATION DURING WELL-DRILLING OPERATIONS

#68
20230407162
2023-12-21

Method for fluid loss control with two treatment fluids

#69
20230392458
2023-12-07

Reducing fluid loss with lost circulation materials

#70
20230383169
2023-11-30

Low density oil-based wellbore fluids and methods thereof

#71
20230383168
2023-11-30

Drilling fluid for hydrogen sulfide treatment

#72
20230375523
2023-11-23

Lost circulation material evaluation

#73
20230349253
2023-11-02

Plugging assemblies for plugging cased wellbores

#74
20230340841
2023-10-26

Designing For Permeability Of Filter Cake To Control Lost Circulation

#75
20230303907
2023-09-28

In-situ foamed gel for lost circulation

#76
20230303906
2023-09-28

Methods of making and using a thixotropic cement composition

#77
20230295484
2023-09-21

Loss circulation materials for high pressure formations

#78
20230279282
2023-09-07

Self-degrading organogels

#79
20230235633
2023-07-27

LOST CIRCULATION FLUIDS AND METHODS RELATED THERETO

#80
20230228166
2023-07-20

Carbon-swellable sealing element

#81
20230193706
2023-06-22

Device, system, and method for applying a rapidly solidifying sealant across highly fractured formations during drilling of oil and gas wells

#82
20230193705
2023-06-22

System and method for plugging a lost-circulation zone in a subsurface formation

#83
20230193704
2023-06-22

Test apparatus for measuring particle plugging of a simulated fracture

#84
20230175347
2023-06-08

Drilling stabilizers with dissolvable windows for controlled release of chemicals

#85
20230174840
2023-06-08

Drill-in fluid compositions and methods

#86
20230167696
2023-06-01

Deploying a liner in a wellbore

#87
20230145502
2023-05-11

Surfactant impregnated lost circulation, scrubbing, and scouring material

#88
20230142292
2023-05-11

Carbon-swellable sealing element

#89
20230142223
2023-05-11

Polymer-sand nanocomposite lost circulation material

#90
20230141812
2023-05-11

Dynamic crack leaking stoppage evaluation experiment device and experiment method

#91
20230139705
2023-05-04

Tool for remedial of lost circulation while drilling

#92
20230118725
2023-04-20

Reversible mechanically triggered nanosilica gels

#93
20230110388
2023-04-13

Determining characteristics of fluid loss in a wellbore

#94
20230108571
2023-04-06

Methods and apparatus for deployment of large lost circulation material objects

#95
20230106930
2023-04-06

Contamination prediction of downhole pumpout and sampling

#96
20230062054
2023-03-02

Controlling lost circulation while drilling

#97
20230053857
2023-02-23

Wellbore planner

#98
20230015016
2023-01-19

Cementing across loss circulation zones utilizing a smart drillable cement stinger

#99
20230008746
2023-01-12

Automatically-cleanable thickening performance evaluation instrument for drilling lost circulation materials

#100
20220364424
2022-11-17

LOST CIRCULATION MITIGATION

#101
20220363970
2022-11-17

Polymeric gels for oil and gas conformance control applications and methods of making same

#102
20220341288
2022-10-27

Downhole method and associated apparatus

#103
20220340803
2022-10-27

CROSSLINKED SYNTHETIC POLYMER-BASED RESERVOIR DRILLING FLUID

#104
20220325165
2022-10-13

Nanosized dendrimeric epoxy resin as a loss circulation material

#105
20220316287
2022-10-06

METHOD OF SUPPLYING CEMENT SLURRY AND METHOD OF DRILLING OR CEMENTING OF WELL USING THE SAME

#106
20220307335
2022-09-29

Spent vehicle tire lost circulation material (LCM)

#107
20220290516
2022-09-15

INFLUX AND LOSS DETECTION

#108
20220290033
2022-09-15

Polymer-nanofiller hydrogels

#109
20220282585
2022-09-08

Plugging assemblies for plugging cased wellbores

#110
20220267664
2022-08-25

Emulsified resin-based loss circulation materials for low pressure formations

#111
20220267661
2022-08-25

Base oil for re-use

#112
20220259483
2022-08-18

Polymer networks as lost-circulation material

#113
20220259480
2022-08-18

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

#114
20220251435
2022-08-11

Additives to temporarily reduce viscosities in oil-based fluids

#115
20220235259
2022-07-28

Reactive polymeric lost circulation materials

#116
20220227893
2022-07-21

Starch-containing microsphere and preparation method and use thereof

#117
20220213753
2022-07-07

MAGNETICALLY CONTROLLED RELEASE OF CHEMICALS IN A DOWNHOLE ENVIRONMENT

#118
20220213742
2022-07-07

Loss circulation treatment fluid injection into wells

#119
20220213374
2022-07-07

High density brine with low crystallization temperature

#120
20220204832
2022-06-30

Lost circulation material for reservoir section

#121
20220177767
2022-06-09

Oil-based fluid loss compositions

#122
20220162493
2022-05-26

Drilling fluids and uses thereof

#123
20220154065
2022-05-19

Reversible mechanically triggered nanosilica gels

#124
20220135867
2022-05-05

CROSSLINKING FLUIDS, METHODS FOR DELAYING GEL CROSSLINKING OF SAID FLUIDS, AND APPLICATIONS OF SAID FLUIDS

#125
20220135863
2022-05-05

Shape-adaptable lost circulation material for moderate and severe loss control

#126
20220127512
2022-04-28

POROUS AND PERMEABLE SPHERICAL SHAPED LCM FOR PAY ZONE LOSS CONTROL

#127
20220119698
2022-04-21

Environmentally friendly epoxidized vegetable oil based fatty acid esters to prevent loss circulation

#128
20220112777
2022-04-14

Polymer-sand nanocomposite lost circulation material

#129
20220106846
2022-04-07

Lost circulation material having tentacles

#130
20220106845
2022-04-07

Lost circulation material having tentacles

#131
20220089936
2022-03-24

Polymer networks as lost-circulation material

#132
20220081995
2022-03-17

Downhole sealing

#133
20220065055
2022-03-03

Method and apparatus to cure drilling losses with an electrically triggered lost circulation material

#134
20220056330
2022-02-24

Kits and compositions containing vinyl alcohol polymers and fibers

#135
20220049149
2022-02-17

Engineered loss control slurry with improved performance

#136
20220049147
2022-02-17

Lost circulation material for reservoir section

#137
20220042383
2022-02-10

Loss circulation treatment fluid injection into wells

#138
20220034177
2022-02-03

Method and apparatus for the exact placement of resin and cement plugs

#139
20220033702
2022-02-03

Methods for wellbore strengthening

#140
20220017810
2022-01-20

Geopolymer formulations for mitigating losses

#141
20220010651
2022-01-13

Cementing across loss circulation zones utilizing a smart drillable cement stinger

#142
20220003058
2022-01-06

Estimating three dimensional networks of plugs for drilling fluid additives

#143
20220002611
2022-01-06

Accelerated cement compositions and methods for treating lost circulation zones

#144
20210404270
2021-12-30

High-intensity acoustic treatment of colloidal mineral suspensions for wellbore operations

#145
20210395597
2021-12-23

Low density oil-based wellbore fluids and methods thereof

#146
20210388685
2021-12-16

Lost circulation fabric, method, and deployment systems

#147
20210388684
2021-12-16

Lost circulation fabric, method, and deployment systems

#148
20210388683
2021-12-16

Lost circulation fabric, method, and deployment systems

#149
20210332285
2021-10-28

Reactive polymeric lost circulation materials

#150
20210325089
2021-10-21

Forming high efficiency geothermal wellbores

#151
20210324703
2021-10-21

Lost circulation shapes

#152
20210301607
2021-09-30

SYSTEM AND METHOD FOR DISSOLVED GAS DETECTION

#153
20210301605
2021-09-30

Deploying material to limit losses of drilling fluid in a wellbore

#154
20210301604
2021-09-30

Deploying material to limit losses of drilling fluid in a wellbore

#155
20210301597
2021-09-30

Deploying material to limit losses of drilling fluid in a wellbore

#156
20210285295
2021-09-16

Lost circulation balloon

#157
20210270106
2021-09-02

System for maintaining reversible dynamic range control information associated with parametric audio coders

#158
20210269705
2021-09-02

Enhancing propped fracture conductivity in subterranean wells

#159
20210254450
2021-08-19

Lost circulation materials (LCM) and lost circulation shapes (LCS) test fixture

#160
20210253939
2021-08-19

Consolidation and wellbore strength enhancement with CaCOprecipitation

#161
20210253934
2021-08-19

Geopolymer formulations for mitigating losses

#162
20210246353
2021-08-12

Thermoassociative polymers in subterranean treatment fluids

#163
20210239000
2021-08-05

Contamination prediction of downhole pumpout and sampling

#164
20210238977
2021-08-05

Loss circulation detection during cementing operations

#165
20210222050
2021-07-22

Method of removing calcium carbonate-containing oil-based filter cake using a biodegradable acid solution

#166
20210222048
2021-07-22

Crosslinked synthetic polymer-based reservoir drilling fluid

#167
20210222045
2021-07-22

COMPOSITIONS AND METHODS FOR WELLBORE STRENGTHENING APPLICATIONS

#168
20210215847
2021-07-15

Evaluating drill-in fluid performance in a wellbore

#169
20210214601
2021-07-15

Method and material for isolating a severe loss zone

#170
20210189811
2021-06-24

Swellable lost circulation material and methods of manufacturing and using the same

#171
20210189219
2021-06-24

Epoxy-based LCM compositions with controlled viscosity and methods of treating a lost circulation zone of a wellbore

#172
20210189218
2021-06-24

LCM composition with controlled viscosity and cure time and methods of treating a lost circulation zone of a wellbore

#173
20210179915
2021-06-17

Thermally responsive lost circulation materials

#174
20210179912
2021-06-17

Thermally responsive viscosifiers in subterranean operations

#175
20210172303
2021-06-10

Methods and materials for reducing lost circulation in a wellbore

#176
20210172281
2021-06-10

Deploying wellbore patch for mitigating lost circulation

#177
20210172271
2021-06-10

Hybrid stationary loss circulation cake activated in-situ

#178
20210172270
2021-06-10

Deploying wellbore patch for mitigating lost circulation

#179
20210172269
2021-06-10

Deploying wellbore patch for mitigating lost circulation

#180
20210164329
2021-06-03

Deploying a liner in a wellbore

#181
20210155842
2021-05-27

Rare earth oxide as a weighting and bridging agent

#182
20210139765
2021-05-13

Composition and method of manufacturing of whole date palm seed lost circulation material (LCM)

#183
20210131246
2021-05-06

Methods to perform wellbore strengthening, methods to pulse hydraulic fracture a downhole formation, and wellbore strengthening systems

#184
20210131201
2021-05-06

OIL SWELLABLE MATERIAL FOR LOW TEMPERATURE LOST CIRCULATION MATERIAL APPLICATION

#185
20210130673
2021-05-06

Methods of making and using a superabsorbent polymer fluid

#186
20210123307
2021-04-29

At-the-bit mud loss treatment

#187
20210115760
2021-04-22

Methods for increasing wellbore strength

#188
20210115755
2021-04-22

Tubular wire mesh for loss circulation and wellbore stability

#189
20210108466
2021-04-15

Drilling bottom hole methods for loss circulation mitigation

#190
20210108123
2021-04-15

Compressed lost circulation materials

#191
20210102431
2021-04-08

Devices and methods for placement of loss control slurry

#192
20210102430
2021-04-08

Devices and methods for placement of loss control slurry

#193
20210102108
2021-04-08

Solid shale inhibitor additives

#194
20210095180
2021-04-01

Combination for filtrate control and gas migration

#195
20210087454
2021-03-25

Degradable polymeric nanoparticles and uses thereof

#196
20210087453
2021-03-25

High-temperature resistant, high-strength, and thixotropic gel plugging agent and its preparation method and application

#197
20210071497
2021-03-11

Sphere-shaped lost circulation material (LCM) having hooks and latches

#198
20210071064
2021-03-11

Sphere-shaped lost circulation material (LCM) having straight protrusions

#199
20210071058
2021-03-11

Method for making and using a drilling fluid

#200
20210062064
2021-03-04

HIGH TEMPERATURE TREATMENT FLUID WITH NANOCELLULOSE

#201
20210062063
2021-03-04

Micronized loss prevention material (LPM) for preventive loss control

#202
20210040376
2021-02-11

De-oiled lost circulation materials

#203
20210032525
2021-02-04

Spacer fluids and cement slurries that include surfactants

#204
20210032524
2021-02-04

Water-based drilling fluids that include lubricants

#205
20210032373
2021-02-04

STARCH-CONTAINING MICROSPHERE AND PREPARATION METHOD AND USE THEREOF

#206
20210017442
2021-01-21

Thixotropic sealing composition and injection thereof for use during drilling

#207
20210017439
2021-01-21

Hydrobically treated particulates for improved return permeability

#208
20210002974
2021-01-07

Curing a lost circulation zone in a wellbore

#209
20210002969
2021-01-07

Method and system for monitoring influx and loss events in a wellbore

#210
20200407621
2020-12-31

EMULSIFIED DRILLING FLUIDS AND METHODS OF MAKING AND USE THEREOF

#211
20200407620
2020-12-31

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

#212
20200400017
2020-12-24

Contamination prediction of downhole pumpout and sampling

#213
20200399965
2020-12-24

System and methods for controlled mud cap drilling

#214
20200399523
2020-12-24

Drilling fluids that include water-insoluble acid catalyst precursors

#215
20200399522
2020-12-24

Drilling fluids that include water-soluble acid catalyst precursors or reaction products of such and uses for such drilling fluids

#216
20200399521
2020-12-24

Drilling fluids that include water-soluble acid catalysts and uses for such

#217
20200392392
2020-12-17

Perlite containing drilling fluids and uses thereof

#218
20200386065
2020-12-10

Closed hole circulation drilling with continuous downhole monitoring

#219
20200362220
2020-11-19

Unfoldable device for controlling loss circulation

#220
20200347284
2020-11-05

Method for eliminating fluid loss during construction of oil and gas wells

#221
20200339863
2020-10-29

Well treatment fluid having an acidic nanoparticle based dispersion, an epoxy resin, and a polyamine

#222
20200332173
2020-10-22

Method for controlling the permeability of a petroleum well

#223
20200318445
2020-10-08

Pit pump for use in a drilling fluid recycling system

#224
20200317988
2020-10-08

Permeable and decomposable plug forming rapidly dehydrating fluid (RDF)

#225
20200317987
2020-10-08

Permeable and decomposable plug forming rapidly dehydrating fluid (RDF)

#226
20200317986
2020-10-08

Permeable and decomposable plug forming rapidly dehydrating fluid (RDF)

#227
20200317983
2020-10-08

Compositions for sealing an annulus of a wellbore

#228
20200317982
2020-10-08

Lost circulation material (LCM) pill for total loss control

#229
20200308468
2020-10-01

CROSS-LINKED LEVAN BLENDS AS LOST CIRULATION MATERIALS

#230
20200291285
2020-09-17

Development of retarded acid system

#231
20200284109
2020-09-10

Method and model for wellbore strengthening by filtercake

#232
20200283671
2020-09-10

Drilling fluid composition including viscosifier and method of using the same

#233
20200270957
2020-08-27

Diffuser assembly

#234
20200270504
2020-08-27

Pickering foam drilling fluids

#235
20200263518
2020-08-20

METHODS AND SYSTEMS TO SEAL SUBTERRANEAN VOID

#236
20200256180
2020-08-13

Smart system for selection of wellbore drilling fluid loss circulation material

#237
20200248527
2020-08-06

Lost circulation shapes

#238
20200248512
2020-08-06

Lost circulation shape deployment

#239
20200248062
2020-08-06

Methods for wellbore strengthening

#240
20200248061
2020-08-06

Lubricants for water-based drilling fluids

#241
20200208494
2020-07-02

Expanding thermite reactions for downhole applications

#242
20200208038
2020-07-02

Microsphere compositions and methods for production in oil-based drilling fluids

#243
20200208037
2020-07-02

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

#244
20200199956
2020-06-25

Ball activated treatment and production system including injection system

#245
20200199436
2020-06-25

Lost circulation material compositions and methods of isolating a lost circulation zone of a wellbore

#246
20200199435
2020-06-25

Compositions for sealing a lost circulation zone in a wellbore

#247
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

#248
20200172790
2020-06-04

Removal of barite weighted mud

#249
20200172787
2020-06-04

Treatment fluids containing high density iodide brines

#250
20200165507
2020-05-28

Synthetic hectorite in glass bead suspensions

#251
20200165506
2020-05-28

Drilling fluid for downhole electrocrushing drilling

#252
20200165504
2020-05-28

Spacer fluid compositions that include surfactants

#253
20200157413
2020-05-21

Method and process of use of binary compositions for acidizing subterranean formations

#254
20200140739
2020-05-07

Methods of using drilling fluid compositions with enhanced rheology

#255
20200123429
2020-04-23

METHODS FOR TREATING A DRILLING FLUID

#256
20200115613
2020-04-16

Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof

#257
20200115612
2020-04-16

Filtrate reducer for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof

#258
20200115611
2020-04-16

Plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof

#259
20200110014
2020-04-09

Simulating fluid loss through diverging fracture fronts

#260
20200102798
2020-04-02

Used automobile tires as loss circulation material

#261
20200095491
2020-03-26

Development of anti-bit balling fluids

#262
20200087996
2020-03-19

Diffuser assembly with vibration feature

#263
20200087560
2020-03-19

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

#264
20200080401
2020-03-12

In situ expandable tubulars

#265
20200071598
2020-03-05

Lost circulation material compositions and methods of isolating a lost circulation zone of a wellbore

#266
20200071593
2020-03-05

Sealing compositions and methods of sealing an annulus of a wellbore

#267
20200048534
2020-02-13

Breaker Fluids and Methods of Use Thereof

#268
20200048526
2020-02-13

Nanosilica dispersion well treatment fluid

#269
20200040247
2020-02-06

Development of anti-bit balling fluids

#270
20200032633
2020-01-30

Electrically controlled propellant materials for subterranean zonal isolation and diversion

#271
20200032126
2020-01-30

CONSOLIDATION AND WELLBORE STRENGTH ENHANCEMENT WITH CaCO3 PRECIPITATION

#272
20200024502
2020-01-23

Drilling fluid for downhole electrocrushing drilling

#273
20200017747
2020-01-16

Date pit based drilling fluid composition

#274
20200010753
2020-01-09

Lime-based cement composition

#275
20200010752
2020-01-09

Treatment fluids comprising synthetic silicates and methods for use

#276
20200010751
2020-01-09

Application of metal oxide-based cements in wellbores

#277
20200002593
2020-01-02

Method for making a drilling composition and treating a subterranean formation

#278
20200002592
2020-01-02

Date palm seed-based lost circulation material (LCM)

#279
20190383121
2019-12-19

TREATMENT OF SILICEOUS MATERIALS USING CATECHOL AND AMINES IN SUBTERRANEAN APPLICATIONS

#280
20190375977
2019-12-12

Chemical plugs for preventing wellbore treatment fluid losses

#281
20190375975
2019-12-12

Betaines for shale stabilization

#282
20190375974
2019-12-12

Two-component lost circulation pill for seepage to moderate loss control

#283
20190375973
2019-12-12

Date tree waste-based trinary fibrous mix for moderate to severe loss control

#284
20190360326
2019-11-28

Chemically tagged drilling fluid additives

#285
20190352983
2019-11-21

Thixotropic cement slurry and placement method to cure lost circulation

#286
20190330942
2019-10-31

Foam cap drilling methods

#287
20190323332
2019-10-24

Smart system for selection of wellbore drilling fluid loss circulation material

#288
20190316431
2019-10-17

Methods for wellbore milling operations

#289
20190316019
2019-10-17

Drill fluid and method for tunneling

#290
20190309604
2019-10-10

Methods and systems of modeling fluid diversion treatment operations

#291
20190309588
2019-10-10

Collecting drilling microchips

#292
20190309587
2019-10-10

Collecting drilling microchips

#293
20190309580
2019-10-10

Well bit assembly

#294
20190309579
2019-10-10

Wellbore drill bit

#295
20190309212
2019-10-10

Chemical plugs for preventing wellbore treatment fluid losses

#296
20190309210
2019-10-10

Development of anti-bit balling fluids

#297
20190300776
2019-10-03

Settable compositions comprising cement kiln dust and methods of use

#298
20190300773
2019-10-03

Date tree trunk and rachis-based superfine fibrous materials for seepage loss control

#299
20190292861
2019-09-26

Hybrid loss prevention material (LPM) for preventive and curative loss control

#300
20190292860
2019-09-26

Hybrid loss prevention material (LPM) for preventive and curative loss control