ClassID:

104321

C09K8/5758 - 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 consolidating loose sand or the like around wells without excessively decreasing the permeability thereof; Compositions based on water or polar solvents containing organic compounds; Macromolecular compounds of natural origin, e.g. polysaccharides, cellulose

Recent Application in this class:
#1
20250320404
2025-10-16

METHODS FOR STABILIZING SUBTERRANEAN FORMATIONS

#2
20230096777
2023-03-30

Sand consolidation by enzyme mediated calcium carbonate precipitation

#3
20220290035
2022-09-15

Sand consolidation by enzyme mediated calcium carbonate precipitation

#4
20210108126
2021-04-15

Compositions comprising aminated dextrin compounds and subterranean treatment methods using the same

#5
20200339869
2020-10-29

Treatment fluids containing degradable fibers grafted with a crosslinker

#6
20200291290
2020-09-17

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

#7
20200148941
2020-05-14

Compositions providing consolidation and water-control

#8
20200056085
2020-02-20

BASIL SEED GUM POLYMER GELLING AGENT

#9
20200017755
2020-01-16

Aminated dextrin compounds and subterranean treatment methods using the same

#10
20180362830
2018-12-20

Clean gravel pack fluid composition and method for sand control applications

#11
20180037807
2018-02-08

Gravel packing fluids with enhanced thermal stability

#12
20170233643
2017-08-17

Biopolymer based cationic surfactant for clay stabilization and prevention of sludging

#13
20170226407
2017-08-10

Composition comprising ultrafine cellulose fibers

#14
20170226399
2017-08-10

Subterranean formation processing composition comprising ultrafine cellulose fibers

#15
20170226398
2017-08-10

Composition comprising ultrafine cellulose fibers

#16
20170183561
2017-06-29

Well treatment fluids comprising cross-linkable polysaccharides

#17
20170145285
2017-05-25

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

#18
20170137690
2017-05-18

Wellbore strengthening additive and uses thereof

#19
20170009127
2017-01-12

Controlling The Stability Of Water In Water Emulsions

#20
20170002261
2017-01-05

LOW MOLECULAR WEIGHT GUAR AS GELLING AGENT ADDITIVE

#21
20160298028
2016-10-13

Wellbore servicing materials and methods of making and using same

#22
20160237336
2016-08-18

Dual breaker system for reducing formation damage during fracturing

#23
20160160107
2016-06-09

Controlling flow in downhole operations

#24
20160153273
2016-06-02

Fracturing treatments in subterranean formations using reducible materials

#25
20160122615
2016-05-05

Water-based drilling fluid with cyclodextrin shale stabilizer

#26
20160083641
2016-03-24

Solids free gellable treatment fluids

#27
20150344766
2015-12-03

Enhanced wellbore strengthening solution

#28
20150233073
2015-08-20

Use of thermo-thickening polymers in the gas- and oilfield industry

#29
20150166869
2015-06-18

Enhanced acid soluble wellbore strengthening solution

#30
20150159076
2015-06-11

Acid soluble defluidizing pills

#31
20150038645
2015-02-05

Biomimetic adhesive compositions comprising a phenolic polymer and methods for use thereof

#32
20140329724
2014-11-06

Crosslinking chitosan for reducing permeability in a well

#33
20140128295
2014-05-08

Water-based drilling fluid with cyclodextrin shale stabilizer

#34
20140066340
2014-03-06

Low Toxicity Viscosifier and Methods of Using the Same

#35
20130312961
2013-11-28

Biomimetic adhesive compositions comprising a phenolic polymer and methods for use thereof

#36
20130133892
2013-05-30

Breaking diutan with oxalic acid at 180° F to 220° F

#37
20120269584
2012-10-25

Method for water tightening of water bearing zones and stabilization of sand in underground constructions

#38
20110003720
2011-01-06

Controlling the stability of water in water emulsions

#39
20090163387
2009-06-25

Stabilizing biphasic concentrates through the addition of small amounts of high molecular weight polyelectrolytes

#40
20090044942
2009-02-19

Well treatment operations using spherical cellulosic particulates

#41
20070044961
2007-03-01

Crosslinkable polymer compositions comprising phenols and associated methods

#42
20060258542
2006-11-16

Nonnatural galactomannans and methods of use

#43
20060027364
2006-02-09

Stabilizing crosslinked polymer guars and modified guar derivatives

#44
20050284637
2005-12-29

Methods of treating subterranean formations using low-molecular-weight fluids

#45
19074139
2026-05-19

High temperature gravel packing fluid system