ClassID:

104334

C09K8/608 - 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 stimulating production by acting on the underground formation specially adapted for clay formations Polymer compositions

Recent Application in this class:
#1
20240228861
2024-07-11

Ionic Liquid Chain Transfer Agent As Well Treatment Additive

#2
20220259486
2022-08-18

Hydraulic fracturing fluids with an aqueous base fluid and clay stabilizer and methods for hydraulic fracturing using the same

#3
20220162383
2022-05-26

Silane-Functionalized Polyalkyleneimine Clay Stabilizer for Treatment of Subterranean Formations

#4
20210371730
2021-12-02

Well treatment compositions and methods comprising certain microemulsions and certain clay control additives exhibiting synergistic effect of enhancing clay swelling protection and persistency

#5
20210341820
2021-11-04

Polymer composition for use in a camera module

#6
20210332288
2021-10-28

Use of multiple charged cationic compounds derived from polyamines for clay stabilization in oil and gas operations

#7
20210108132
2021-04-15

Well treatment compositions and methods comprising certain microemulsions and certain clay control additives exhibiting synergistic effect of enhancing clay swelling protection and persistency

#8
20200354626
2020-11-12

Selective salt management for wellbore fluids using microgel particles

#9
20200071602
2020-03-05

Use of multiple charged cationic compounds derived from polyamines for clay stabilization in oil and gas operations

#10
20190316030
2019-10-17

Clay inhibitors for drilling, fracturing, and other procedures

#11
20190153304
2019-05-23

DRAG-REDUCING ADDITIVES HAVING DISPERSION POLYMERS AND MICROEMULSIONS AND METHODS FOR PREPARING AND USING SAME

#12
20190093003
2019-03-28

Method of preparing and using a drag-reducing additive having a dispersion polymer

#13
20180265635
2018-09-20

Silane-functionalized polyalkyleneimine clay stabilizer for treatment of subterranean formations

#14
20180251583
2018-09-06

Film-forming compositions containing zwitterionic functional polymers and their use in methods of reducing adhesion of an organic substance to a substrate

#15
20180187068
2018-07-05

Method of preparing and using drag-reducing dispersion polymer compositions

#16
20180066172
2018-03-08

Shale inhibitors based on cationic tamarind gum, and drilling fluid comprising the shale inhibitor

#17
20180022985
2018-01-25

METHOD OF USING CATIONIC POLYMERS COMPRISING IMIDAZOLIUM GROUPS FOR PERMANENT CLAY STABILIZATION

#18
20180010034
2018-01-11

Sealant composition for use in subterranean formations

#19
20170233643
2017-08-17

Biopolymer based cationic surfactant for clay stabilization and prevention of sludging

#20
20170190954
2017-07-06

Polymeric ionic liquid clay control agents

#21
20160272868
2016-09-22

High-temperature high-pressure (HTHP) stable synthetic polymer for water based oil-well servicing fluids

#22
20160208159
2016-07-21

DOWNHOLE POLYMERIZABLE CLAY CONTROL AGENT FOR SHALE TREATMENT

#23
20160137905
2016-05-19

COMPOSITION FOR FINES AGGLOMERATION

#24
20160029634
2016-02-04

Microbiocides and uses thereof

#25
20150183911
2015-07-02

Amphiphilic macromolecule and the purpose of this amphiphilic macromolecule

#26
20140350204
2014-11-27

Amphiphilic macromolecule and the purpose of this amphiphilic macromolecule

#27
20140316092
2014-10-23

Amphiphilic macromolecule and use thereof

#28
20120285690
2012-11-15

Multi-Stage Methods and Compositions for Desensitizing Subterranean Formations Faces

#29
20120285689
2012-11-15

Methods and compositions for clay control

#30
20120035085
2012-02-09

Drag-reducing copolymer compositions

#31
20100113309
2010-05-06

Method of reducing the viscosity of hydrocarbon fluids

#32
20090131287
2009-05-21

Inhibiting hydration of shale using a polyol and potassium formate

#33
20080132711
2008-06-05

High molecular weight polyamine salts as clay stabilizing agents

#34
20080108523
2008-05-08

Polyamine salts as clay stabilizing agents

#35
20060254772
2006-11-16

High molecular weight polyamine salts as clay stabilizing agents

#36
20050256012
2005-11-17

Well drilling fluids

#37
20050215439
2005-09-29

Clay stabilization in sub-surface formations

#38
20050126782
2005-06-16

Polyamine salts as clay stabilizing agents

#39
17844731
2023-10-10

Bionics-based efficiently transported and packed proppant and preparation method thereof

#40
16900084
2020-11-17

Systems and methods of polymerization under extensional flow conditions