ClassID:

135375

E21B21/003 - page 2 - 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:
#301
20190292434
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#302
20190292433
2019-09-26

Loss circulation compositions (LCM) having Portland cement clinker

#303
20190292432
2019-09-26

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

#304
20190292431
2019-09-26

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

#305
20190276724
2019-09-12

Loss circulation material composition having alkaline nanoparticle based dispersion, water insoluble hydrolysable polyester, and formaldehyde resin

#306
20190270929
2019-09-05

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

#307
20190270928
2019-09-05

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

#308
20190270925
2019-09-05

METHOD OF DRILLING A SUBTERRANEAN GEOLOGICAL FORMATION

#309
20190265150
2019-08-29

SLOTTED DISCS REPRESENTATIVE OF FORMATION FRACTURES

#310
20190264543
2019-08-29

In situ expandable tubulars

#311
20190264539
2019-08-29

Systems and methods for smart multi-function hole cleaning sub

#312
20190257162
2019-08-22

Mitigating drilling circulation loss

#313
20190249515
2019-08-15

Curing a lost circulation zone in a wellbore

#314
20190249512
2019-08-15

Loss circulation drilling packer

#315
20190249064
2019-08-15

Method and material for isolating a severe loss zone

#316
20190249063
2019-08-15

Method and material for isolating a severe loss zone

#317
20190249062
2019-08-15

Method and material for isolating a severe loss zone

#318
20190249061
2019-08-15

Method and material for isolating a severe loss zone

#319
20190242208
2019-08-08

MAGNETORHEOLOGICAL DOWN-HOLE PACKING ELEMENTS

#320
20190241789
2019-08-08

Treatment fluids comprising recycled drilling cuttings and method of use

#321
20190241788
2019-08-08

Hybrid particle mix for seal and plug quality enhancement

#322
20190241787
2019-08-08

Hybrid particle mix for seal and plug quality enhancement

#323
20190233708
2019-08-01

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

#324
20190233707
2019-08-01

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

#325
20190233706
2019-08-01

Drilling fluid composition containing treated date pit particles and methods of use thereof

#326
20190226288
2019-07-25

Method of conversion of a drilling mud to a gel-based lost circulation material to combat lost circulation during continuous drilling

#327
20190225872
2019-07-25

Polysaccharide coated nanoparticle compositions comprising ions

#328
20190225866
2019-07-25

Coated lost circulation materials and methods of using same

#329
20190225865
2019-07-25

Loss circulation compositions (LCM) having portland cement clinker

#330
20190218871
2019-07-18

ARC perm-squeeze RDF—a permeable plug forming rapidly dehydrating fluid

#331
20190218870
2019-07-18

ARC perm-squeeze RDF—a permeable plug forming rapidly dehydrating fluid

#332
20190218869
2019-07-18

ARC perm-squeeze RDF—a permeable plug forming rapidly dehydrating fluid

#333
20190218442
2019-07-18

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

#334
20190218441
2019-07-18

Method for drilling a hydrogen sulfide-containing formation

#335
20190203106
2019-07-04

Polysaccharide coated nanoparticle compositions comprising ions

#336
20190203105
2019-07-04

Polysaccharide coated nanoparticle compositions comprising ions

#337
20190203096
2019-07-04

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

#338
20190203095
2019-07-04

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

#339
20190195035
2019-06-27

Delivering materials downhole using tools with moveable arms

#340
20190194519
2019-06-27

Date tree leaflet-based flaky lost circulation material

#341
20190186231
2019-06-20

Methods of mitigating lost circulation while drilling a wellbore

#342
20190185736
2019-06-20

Loss circulation compositions (LCM) having Portland cement clinker

#343
20190185732
2019-06-20

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

#344
20190185731
2019-06-20

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

#345
20190179051
2019-06-13

Methods of drilling with resistivity tools

#346
20190177598
2019-06-13

Acid-soluble plug forming rapidly dehydrating loss control slurry

#347
20190177597
2019-06-13

Acid-soluble plug forming rapidly dehydrating loss control slurry

#348
20190177596
2019-06-13

Acid-soluble plug forming rapidly dehydrating loss control slurry

#349
20190169484
2019-06-06

Multiple functional wellbore fluid additive

#350
20190161668
2019-05-30

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

#351
20190153294
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#352
20190153293
2019-05-23

Loss circulation compositions (LCM) having portland cement clinker

#353
20190153292
2019-05-23

Loss circulation compositions (LCM) having Portland cement clinker

#354
20190145223
2019-05-16

Methods for increasing wellbore strength

#355
20190145200
2019-05-16

ARC perm-squeeze RDF—a permeable plug forming rapidly dehydrating fluid

#356
20190145198
2019-05-16

System and methods for controlled mud cap drilling

#357
20190144736
2019-05-16

Breaker fluids and methods of use thereof

#358
20190144731
2019-05-16

Loss circulation material for seepage to moderate loss control

#359
20190144730
2019-05-16

Loss circulation material for seepage to moderate loss control

#360
20190136683
2019-05-09

Methods of drilling with resistivity tools

#361
20190136114
2019-05-09

Conductive wellbore fluids and/or filtercakes, wellbore fluids for producing the same, and methods of use thereof

#362
20190128094
2019-05-02

Fluid placement tool

#363
20190119551
2019-04-25

Methods of formulating conductive wellbore fluids

#364
20190119546
2019-04-25

Used automobile tires as loss circulation material

#365
20190106952
2019-04-11

Thixotropic cement slurry and placement method to cure lost circulation

#366
20190106619
2019-04-11

Enhanced propped fracture conductivity in subterranean wells

#367
20190100684
2019-04-04

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

#368
20190093000
2019-03-28

SELF-SUSPENDING MATERILAL FOR DIVERSION APPLICATIONS

#369
20190092996
2019-03-28

DISPERSANT IN CEMENT FORMULATIONS FOR OIL AND GAS WELLS

#370
20190078013
2019-03-14

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

#371
20190078012
2019-03-14

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

#372
20190078008
2019-03-14

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

#373
20190063170
2019-02-28

Diffuser assembly

#374
20190055800
2019-02-21

Ball activated treatment and production system including injection system

#375
20190055451
2019-02-21

Layered double hydroxides for oil-based drilling fluids

#376
20190055450
2019-02-21

Layered double hydroxides for oil-based drilling fluids

#377
20190055445
2019-02-21

Fiber suspending agent for lost-circulation materials

#378
20190048247
2019-02-14

Spacer fluids for cementing well bores

#379
20190023971
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#380
20190023970
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#381
20190023969
2019-01-24

Loss circulation compositions (LCM) having Portland cement clinker

#382
20190023968
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#383
20190023967
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#384
20190023966
2019-01-24

Loss circulation compositions (LCM) having portland cement clinker

#385
20190017339
2019-01-17

Gravitational Displacement Apparatus for treating Sustained Casing Annulus Pressure and Surface Casing Vent Flow

#386
20190017338
2019-01-17

Collecting drilling microchips

#387
20180346788
2018-12-06

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

#388
20180346787
2018-12-06

Modified biopolymers for diversion, conformance, and fluid loss control

#389
20180346785
2018-12-06

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

#390
20180346784
2018-12-06

Betaines for shale stabilization

#391
20180340381
2018-11-29

Mitigating drilling circulation loss

#392
20180340111
2018-11-29

Thermal thickening in invert emulsion treatment fluids

#393
20180340110
2018-11-29

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

#394
20180334868
2018-11-22

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

#395
20180334867
2018-11-22

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

#396
20180334866
2018-11-22

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

#397
20180334609
2018-11-22

Oil-swellable, desolvated polymer gels and methods of using the same for preventing loss of non-aqueous wellbore fluids to the subterranean formation

#398
20180334608
2018-11-22

Oil-swellable, desolvated polymer gels and methods of using the same for preventing loss of non-aqueous wellbore fluids to the subterranean formation

#399
20180334606
2018-11-22

Base oil for re-use

#400
20180328147
2018-11-15

Fracturing fluids and methods of treating hydrocarbon formations

#401
20180320063
2018-11-08

Development of retarded acid system

#402
20180320059
2018-11-08

Polysaccharide coated nanoparticle compositions comprising ions

#403
20180320053
2018-11-08

Chemical plugs for preventing wellbore treatment fluid losses

#404
20180320050
2018-11-08

Methods of using drilling fluid compositions with enhanced rheology

#405
20180320049
2018-11-08

Hydrophobically-treated particulates for improved fluid rheology

#406
20180320048
2018-11-08

Wellbore fluids and methods of use thereof

#407
20180312439
2018-11-01

Dispersant in cement formulations for oil and gas wells

#408
20180306006
2018-10-25

Methods of using superabsorbent polymers for fracturing and sand control applications

#409
20180305998
2018-10-25

Methods and systems to seal subterranean void

#410
20180305603
2018-10-25

HYDROPHOBIZING TREATMENTS AND AGENTS AND METHODS OF USE IN SUBTERRANEAN FORMATIONS

#411
20180298706
2018-10-18

Direct emulsions and methods of use

#412
20180291707
2018-10-11

Downhole sealing

#413
20180283135
2018-10-04

FLUID LOSS VALVE AND PACKER ASSEMBLY

#414
20180282216
2018-10-04

Dispersant in cement formulations for oil and gas wells

#415
20180274348
2018-09-27

Method of acidizing of subterranean formations in well operations

#416
20180274312
2018-09-27

Lost circulation zone isolating liner

#417
20180266197
2018-09-20

Apparatus for loss circulation material performance evaluation

#418
20180251666
2018-09-06

Polymer-modified asphalt for drilling fluid applications

#419
20180244979
2018-08-30

Removal of barite weighted mud

#420
20180244977
2018-08-30

Diverter fluid diverter fluid

#421
20180237680
2018-08-23

Core-shell particles for treatment of subterranean formations

#422
20180230771
2018-08-16

Permeable lost circulation drilling liner

#423
20180223175
2018-08-09

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

#424
20180223169
2018-08-09

Spacer fluid compositions that include surfactants

#425
20180223168
2018-08-09

Spacer fluids and cement slurries that include surfactants

#426
20180223167
2018-08-09

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

#427
20180223166
2018-08-09

Invert emulsion based drilling fluid and methods of using same

#428
20180223165
2018-08-09

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

#429
20180223164
2018-08-09

EMULSIFIED DRILLING FLUIDS AND METHODS OF MAKING AND USE THEREOF

#430
20180223163
2018-08-09

Compositions and methods of making of shale inhibition fluids

#431
20180223162
2018-08-09

Development of anti-bit balling fluids

#432
20180223161
2018-08-09

Development of anti-bit balling fluids

#433
20180223160
2018-08-09

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

#434
20180223159
2018-08-09

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

#435
20180223158
2018-08-09

Drilling fluid compositions with enhanced rheology and methods of using same

#436
20180223156
2018-08-09

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

#437
20180223155
2018-08-09

Compositions and methods of use of water-based drilling fluids with increased thermal stability

#438
20180223154
2018-08-09

Drilling fluid

#439
20180223153
2018-08-09

Lubricants for water-based drilling fluids

#440
20180223152
2018-08-09

Nanosilica dispersion well treatment fluid

#441
20180223151
2018-08-09

Nanosilica dispersion lost circulation material (LCM)

#442
20180223150
2018-08-09

Nanosilica dispersion lost circulation material (LCM)

#443
20180223149
2018-08-09

Nanosilica dispersion well treatment fluid

#444
20180223148
2018-08-09

NANOSILICA DISPERSION LOST CIRCULATION MATERIAL (LCM)

#445
20180222797
2018-08-09

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

#446
20180222796
2018-08-09

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

#447
20180208824
2018-07-26

Water-based drilling fluid for protecting high-permeability reservoirs, and preparation method and use thereof

#448
20180208822
2018-07-26

Proteins for removing sulfurous compounds and/or acidic compounds in downhole fluids

#449
20180201823
2018-07-19

Drilling fluid for downhole electrocrushing drilling

#450
20180194987
2018-07-12

Drilling fluid for downhole electrocrushing drilling

#451
20180194986
2018-07-12

Drilling fluid for downhole electrocrushing drilling

#452
20180194984
2018-07-12

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

#453
20180187492
2018-07-05

Drilling bottom hole assembly for loss circulation mitigation

#454
20180187063
2018-07-05

Conductive Weighting Agents and Fluids Incorporating The Same

#455
20180171203
2018-06-21

Suspending agents obtained by micellar polymerization

#456
20180171202
2018-06-21

ARC fiber trio-date tree waste-based trinary fibrous mix for moderate to severe loss control

#457
20180171201
2018-06-21

Loss circulation material for seepage to moderate loss control

#458
20180171200
2018-06-21

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

#459
20180163509
2018-06-14

Downhole sealing and actuation

#460
20180163124
2018-06-14

SPHEROID MAGNETIC POLYMERS FOR IMPROVING HYDROCARBON RECOVERY OR DRILLING PERFORMANCE

#461
20180163119
2018-06-14

Methods for treating a subterranean well

#462
20180163116
2018-06-14

Acid-soluble plug forming rapidly dehydrating loss control slurry

#463
20180156019
2018-06-07

Microbubbles for treatment chemical delivery in subterranean formations

#464
20180155605
2018-06-07

Swellable glass particles for reducing fluid flow in subterranean formations

#465
20180155600
2018-06-07

Hydro-fracking method using an aloe vera fracturing fluid

#466
20180148630
2018-05-31

WELL CEMENTING COMPOSITIONS AND METHODS

#467
20180148624
2018-05-31

Use of a composition for stabilizing a geological formation in oil fields, gas fields, water pumping fields, mining or tunnel constructions

#468
20180135367
2018-05-17

Fluid loss and gain for flow, managed pressure and underbalanced drilling

#469
20180127636
2018-05-10

CONTROLLING GEL TIMES OF REMEDIAL AQUEOUS RESIN COMPOSITIONS FOR SEALING OFF FLOW CHANNELS

#470
20180118993
2018-05-03

RESERVOIR PROTECTING AGENT COMPOSITION FOR RESERVOIR WITH CRACKS, DRILLING FLUID CONTAINING THE SAME AND USE THEREOF

#471
20180112477
2018-04-26

Method for determining a concentration of solid particles

#472
20180087350
2018-03-29

In situ expandable tubulars

#473
20180086969
2018-03-29

Treatment fluids for reducing subterranean formation damage

#474
20180086965
2018-03-29

Alkylpolyglucoside derivative fluid loss control additives for wellbore treatment fluids

#475
20180086962
2018-03-29

Date tree leaflet-based flaky lost circulation material

#476
20180057728
2018-03-01

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

#477
20180051528
2018-02-22

Engineering methodology to treat severe loss zones with thixotropic cement system

#478
20180044574
2018-02-15

Ultra-high-molecular-weight polyolefin proppants

#479
20180038212
2018-02-08

Methods for treatment of a subterranean formation

#480
20180037803
2018-02-08

METHODS OF TREATING OIL AND GAS WELL FRACTURES

#481
20180037800
2018-02-08

Synthetic hectorite in glass bead suspensions

#482
20180037797
2018-02-08

Wellbore sealant using nanoparticles

#483
20180030340
2018-02-01

Methods of preparing treatment fluids comprising anhydrous ammonia for use in subterranean formation operations

#484
20180022984
2018-01-25

Activators for inorganic oxide breakers

#485
20180016888
2018-01-18

Mud cake correction of formation measurement data

#486
20180016885
2018-01-18

Well treatment fiber delivery system

#487
20180010449
2018-01-11

Casing coupling having communication unit for evaluating downhole conditions

#488
20180010031
2018-01-11

Polymeric viscosifiers for use in water-based drilling fluids

#489
20180010030
2018-01-11

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

#490
20180002596
2018-01-04

SUBTERRANEAN FLUIDS CONTAINING SUSPENDED POLYMER BODIES

#491
20170369760
2017-12-28

Invert emulsion treatment fluids comprising polar organic compounds and methods of use in subterranean operations

#492
20170369758
2017-12-28

Methods of using lost circulation treatment materials comprising brown mud

#493
20170369757
2017-12-28

Lost circulation materials comprising cane ash

#494
20170362499
2017-12-21

Compositions and Methods for Preparation and Utilization of Acid-Generating Materials

#495
20170362486
2017-12-21

Biopolymer composite for water-based treatment fluids

#496
20170342786
2017-11-30

Lost circulation materials comprising red mud

#497
20170335653
2017-11-23

Method of extracting underground resources and hydrolysis-blocking agent for use in the method

#498
20170327726
2017-11-16

Self-degradation swelling diverter system

#499
20170327724
2017-11-16

Fluorinated packer fluids

#500
20170322341
2017-11-09

Subterranean formation characterization using microelectromechanical system (MEMS) devices

#501
20170321107
2017-11-09

Acid-soluble cement composition

#502
20170321104
2017-11-09

Lime-based cement composition

#503
20170314391
2017-11-02

SUBTERRANEAN FORMATION CHARACTERIZATION USING MICROELECTROMECHANICAL SYSTEM (MEMS) DEVICES

#504
20170306210
2017-10-26

Alkylated Polyetheramines as Clay Stabilizing Agents

#505
20170306208
2017-10-26

Use of encapsulated polyamines for limiting fluid loss

#506
20170298710
2017-10-19

Multi-functional surfactant complexes for use in subterranean formations

#507
20170283683
2017-10-05

Milled fibers for fracture sealing performance improvement

#508
20170283679
2017-10-05

Salt-free fluorous-invert emulsion fluid

#509
20170275519
2017-09-28

In situ generation of nano-clay drilling fluid

#510
20170267912
2017-09-21

Delayed acid breaker systems for filtercakes

#511
20170267911
2017-09-21

OIL ABSORBENT OILFIELD MATERIALS AS ADDITIVES IN OIL-BASED DRILLING FLUID APPLICATIONS

#512
20170267909
2017-09-21

Methods and Materials for Improving Wellbore Stability in Laminated Tight Carbonate Source-Rock Formations

#513
20170260819
2017-09-14

Method of conversion of a drilling mud to a gel-based lost circulation material to combat lost circulation during continuous drilling

#514
20170254180
2017-09-07

Downhole diffuser assembly

#515
20170253787
2017-09-07

COMPLEX EMULSIFIER COMPOSITIONS AND METHODS OF USE

#516
20170253786
2017-09-07

Additive of chemically-modified cellulose nanofibrils or cellulose nanocrystals

#517
20170253785
2017-09-07

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

#518
20170253784
2017-09-07

Wellbore methods employing precipitated particles

#519
20170247959
2017-08-31

Apparatus and method for well operations

#520
20170247596
2017-08-31

Fluid loss additive package for shallow well drilling fluids

#521
20170240791
2017-08-24

Curauá fibers as lost-circulation materials and fluid-loss additives in wellbore fluids

#522
20170234089
2017-08-17

Mixing Tank and Method of Use

#523
20170233631
2017-08-17

Self sealing fluids

#524
20170233629
2017-08-17

Drilling mud composition with Aloe vera particles and a fracking process using the same

#525
20170218253
2017-08-03

Method for drilling a well with reduced infiltration

#526
20170210873
2017-07-27

METHOD OF DECOMPOSING ESTER RESINS

#527
20170204318
2017-07-20

Modified hydroxyethyl cellulosic polymers for improved well bore fluids and related uses

#528
20170198191
2017-07-13

Methods of zonal isolation and treatment diversion

#529
20170198189
2017-07-13

Crosslinked synthetic polymer-based reservoir drilling fluid

#530
20170197884
2017-07-13

High strength, operationally robust lost circulation preventative pseudo-crosslinked material

#531
20170190951
2017-07-06

Removal of barite weighted mud

#532
20170190948
2017-07-06

Use of particulate or fibrous materials in gravel pack applications

#533
20170190622
2017-07-06

Drilling method using high density, high strength, acid soluble pseudo-crosslinked, lost circulation preventative material

#534
20170183557
2017-06-29

Alkyl polyglycoside derivative as biodegradable foaming surfactant for cement

#535
20170174975
2017-06-22

EMULSIFIERS FOR WELLBORE STRENGTHENING

#536
20170174974
2017-06-22

Encapsulated polymers and selective activation thereof

#537
20170174973
2017-06-22

Drilling fluid and method for drilling a wellbore

#538
20170166796
2017-06-15

Solubilized polymer concentrates, methods of preparation thereof, and well drilling and servicing fluids containing the same

#539
20170166795
2017-06-15

Lost-circulation materials of two different types of fibers

#540
20170166794
2017-06-15

FILTER CONTROL HPHT ADDITIVE FOR OIL-BASED DRILLING FLUIDS WITH PETROLEUM COKE

#541
20170158941
2017-06-08

ENVIRONMENTALLY FRIENDLY WELLBORE CONSOLIDATING/FLUID LOSS MATERIAL

#542
20170158940
2017-06-08

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

#543
20170152428
2017-06-01

Compositons and methods for curing lost circulation

#544
20170145296
2017-05-25

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

#545
20170145287
2017-05-25

Fluid Loss Additives and Methods of Making and Using Same

#546
20170145283
2017-05-25

Expandable coating for solid particles and associated methods of use in subterranean treatments

#547
20170137694
2017-05-18

Cementitious compositions comprising a non-aqueous fluid and an alkali-activated material

#548
20170137693
2017-05-18

Electrically activated adhesive for strengthening of a subterranean wellbore

#549
20170137692
2017-05-18

Anti-accretion additives for wellbore fluids and methods of use thereof

#550
20170137690
2017-05-18

Wellbore strengthening additive and uses thereof

#551
20170130116
2017-05-11

Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces

#552
20170121586
2017-05-04

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

#553
20170114268
2017-04-27

Encapsulation of an acid precursor for oil field applications

#554
20170114267
2017-04-27

Fluid loss control package for use in subterranean formation operations

#555
20170107788
2017-04-20

Mixing and injecting fiber-based stimulation fluids

#556
20170101847
2017-04-13

Downhole string for drilling through a low pressure zone

#557
20170096592
2017-04-06

ACID SOLUBLE FLAKES AS LOST CIRCULATION MATERIAL

#558
20170088766
2017-03-30

NON-DAMAGING BIMODAL STIMULATION COMPOSITION AND METHOD OF USE THEREOF

#559
20170088763
2017-03-30

INTERNAL BREAKER COMPOSITIONS FOR WELLBORE APPLICATIONS

#560
20170088762
2017-03-30

High density brine with low crystallization temperature

#561
20170058179
2017-03-02

Method for making and using a drilling fluid

#562
20170058178
2017-03-02

Drilling fluid and method for drilling in coal-containing formations

#563
20170051196
2017-02-23

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

#564
20170029688
2017-02-02

Smart filter cake for strengthening formations

#565
20170015899
2017-01-19

CONTROLLING SOLID SUSPENSION IN FLUIDS

#566
20170015895
2017-01-19

Polysaccharide coated nanoparticle compositions comprising ions

#567
20170015890
2017-01-19

Smart filtrate for strengthening formations

#568
20170015887
2017-01-19

SMART LCM FOR STRENGTHENING EARTHEN FORMATIONS

#569
20170002255
2017-01-05

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

#570
20160376491
2016-12-29

Filter cake removal composition for drilling fluids and method of use thereof

#571
20160369151
2016-12-22

Thermal thickening in invert emulsion treatment fluids

#572
20160362599
2016-12-15

Crosslinking resin for sand consolidation operations

#573
20160362596
2016-12-15

Compositions and methods for filter cake removal

#574
20160362594
2016-12-15

Drilling fluids and methods of use

#575
20160356697
2016-12-08

Measuring critical shear stress for mud filtercake removal

#576
20160356107
2016-12-08

High strength, operationally robust lost circulation preventative pseudo-crosslinked material

#577
20160355726
2016-12-08

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

#578
20160355723
2016-12-08

High density, high strength, acid soluble pseudo-crosslinked, lost circulation preventative material

#579
20160355722
2016-12-08

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

#580
20160348452
2016-12-01

Managed pressure drilling with rig heave compensation

#581
20160347986
2016-12-01

Degradable Fluid Sealing Compositions Incorporating Non-Degradable Microparticulates And Methods For Use Thereof

#582
20160333652
2016-11-17

Reduction of Microorganisms in Drilling Fluid Using Controlled Mechanically Induced Cavitation

#583
20160326840
2016-11-10

Downhole apparatus for disrupting filter cake

#584
20160319180
2016-11-03

Self-crosslinking polymers and platelets for wellbore strengthening

#585
20160319179
2016-11-03

Self-crosslinking polymers for wellbore strengthening

#586
20160319177
2016-11-03

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

#587
20160312551
2016-10-27

MEMS-lost circulation materials for evaluating fluid loss and wellbore strengthening during a drilling operation

#588
20160312102
2016-10-27

Methods of enhancing fluid loss control using additives

#589
20160312100
2016-10-27

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

#590
20160305217
2016-10-20

Fluid loss control completion system and methodology

#591
20160304765
2016-10-20

Treatment fluids for reducing subterranean formation damage

#592
20160304398
2016-10-20

Sealant material for subterranean wells

#593
20160298021
2016-10-13

Methods and compositions for using temporary, slow degrading, particulate agents in a subterranean formation

#594
20160298019
2016-10-13

Methods and compositions for using temporary, slow degrading, particulate agents in a subterranean formation

#595
20160298018
2016-10-13

METHODS FOR TREATING SUBTERRANEAN FORMATIONS

#596
20160298017
2016-10-13

TEMPORARY PLUGGING AGENT FOR WELL DRILLING

#597
20160289549
2016-10-06

Fracturing fluids and methods of treating hydrocarbon formations

#598
20160289547
2016-10-06

Methods of using superabsorbent polymers for fracturing and sand control applications

#599
20160289541
2016-10-06

Use of superabsorbent polymers for pressure control and diversion applications

#600
20160289533
2016-10-06

Settable compositions comprising cement kiln dust and methods of use