Patents-Review.com
ClassID:

104273 ⎘

C09K8/26 - CPC Classification

Classification description:

Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations; Well-drilling compositions; Aqueous well-drilling compositions Oil-in-water emulsions

Sub-classes:
Recent Application in this class:
#1
20250236779
2025-07-24

OIL-BASED DRILLING FLUIDS AND METHODS THEREOF

 #2
20220073812
2022-03-10

DILUTED MICROEMULSIONS WITH LOW SURFACE TENSIONS

 #3
20220025247
2022-01-27

METHODS FOR HYDROCARBON RECOVERY USING ALKOXYLATE EMULSIONS

 #4
20210261848
2021-08-26

Methods of recycling oil from a direct phase emulsion

 #5
20210238470
2021-08-05

ALKOXYLATE EMULSIONS

 #6
20210147741
2021-05-20

Emulsions, treatment fluids and methods for treating subterranean formations

 #7
20210108128
2021-04-15

Star polymers and methods of use for downhole fluids

 #8
20200369950
2020-11-26

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

 #9
20200216740
2020-07-09

Reusable high performance water based drilling fluids

 #10
20200095495
2020-03-26

CONFORMANCE CONTROL AND SELECTIVE BLOCKING IN POROUS MEDIA THROUGH DROPLET-DROPLET INTERACTIONS IN NANOPARTICLE STABILISED EMULSIONS

 #11
20190316021
2019-10-17

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

 #12
20190284467
2019-09-19

Diluted microemulsions with low surface tensions

 #13
20190169488
2019-06-06

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

 #14
20190136113
2019-05-09

Performance non-emulsifiers that employ branched alcohols and a new high-solvency carrier oil

 #15
20190062500
2019-02-28

Dialkyl-polyalkylamine compositions, process for their preparation and their use

 #16
20180362826
2018-12-20

Oil-in-water stable, emulsified spacer fluids

 #17
20180305601
2018-10-25

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

 #18
20180201823
2018-07-19

Drilling fluid for downhole electrocrushing drilling

 #19
20170362487
2017-12-21

Emulsions, treatment fluids and methods for treating subterranean formations

 #20
20170158946
2017-06-08

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

 #21
20170107788
2017-04-20

Mixing and injecting fiber-based stimulation fluids

 #22
20160326426
2016-11-10

Use of a boron cross linker in an emulsion system

 #23
20160194550
2016-07-07

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

 #24
20160152885
2016-06-02

Method of applying solvent treatments using emulsions

 #25
20160137907
2016-05-19

Wellbore servicing materials and methods of making and using same

 #26
20160090523
2016-03-31

Oil-in-water stable, emulsified spacer fluids

 #27
20150096808
2015-04-09

Reusable high performance water based drilling fluids

 #28
20150068755
2015-03-12

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

 #29
20140367107
2014-12-18

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

 #30
20140367098
2014-12-18

Hydrophobic compound emulsions free of silicon and fluorine for an oil recovering method that modifies the wettability of rocks from hydrophilic to oleophilic

 #31
20140284057
2014-09-25

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

 #32
20140284053
2014-09-25

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

 #33
20130048281
2013-02-28

Wellbore servicing fluids and methods of making and using same

 #34
20120208726
2012-08-16

COMPOSITION AND METHOD FOR REMOVING FILTER CAKE

 #35
20120190594
2012-07-26

Organoclay materials for environmentally sensitive regions

 #36
20120073817
2012-03-29

Tethered polymers used to enhance the stability of microemulsion fluids

 #37
20110000673
2011-01-06

Drilling fluid and method for reducing lost circulation

 #38
20100323932
2010-12-23

METHODS FOR TREATING A WELL OR THE LIKE

 #39
20100212896
2010-08-26

Gravel-packing carrier fluid with internal breaker

 #40
20100160186
2010-06-24

Microemulsion containing oil field chemicals useful for oil and gas field applications

 #41
20090221456
2009-09-03

Microemulsion cleaning composition

 #42
20090151943
2009-06-18

Aqueous-based emulsified consolidating agents suitable for use in drill-in applications

 #43
20080194436
2008-08-14

Methods for using reversible phase oil-based drilling fluid

 #44
20080182763
2008-07-31

Pumpable multiple phase compositions for controlled release applications downhole

 #45
20070295368
2007-12-27

Surfactant System Method

 #46
20070251693
2007-11-01

Compositions and methods for delivering an organic solvent to a downhole portion of a wellbore or to a portion of a pipeline

 #47
20070244013
2007-10-18

Drilling fluid and method for reducing lost circulation

 #48
20070155982
2007-07-05

Organophilic clays and methods for the preparation and use thereof

 #49
20070155629
2007-07-05

Organophilic clays and methods for the preparation and use thereof

 #50
20070111902
2007-05-17

Methods for using reversible phase oil-based drilling fluid

 #51
20070066795
2007-03-22

Citric acid based emulsifiers for oilfield applications exhibiting low fluorescence

 #52
20060166835
2006-07-27

Microemulsion containing oil field chemicals useful for oil and gas field applications

 #53
20060079407
2006-04-13

Invertible well bore servicing fluid

 #54
20050107263
2005-05-19

Pumpable multiple phase compositions for controlled release applications downhole

 #55
16588429
2020-08-11

Methods to manage water influx suitable for pulsed electrical discharge drilling