ClassID:

242547

Y10S507/927 - CPC Classification

Classification description:

Earth boring, well treating, and oil field chemistry Well cleaning fluid

Sub-classes:
Recent Application in this class:
#1
20120283149
2012-11-08

Compositions and methods for treatment of well bore tar

#2
20120132423
2012-05-31

Compositions and methods for treatment of well bore tar

#3
20120004146
2012-01-05

Surfactant additives used to retain producibility while drilling

#4
20110190530
2011-08-04

Polycationic viscoelastic compositions

#5
20110127039
2011-06-02

System, method, and apparatus for acid fracturing with scale inhibitor protection

#6
20100311623
2010-12-09

Fluid treatment systems, compositions and methods for metal ion stabilization in aqueous solutions

#7
20100311622
2010-12-09

Polycationic viscoelastic compositions

#8
20100311618
2010-12-09

Fluid treatment systems, compositions and methods for metal ion stabilization in aqueous solutions and/or enhanced fluid performance

#9
20100307753
2010-12-09

Methods of treating flowback water

#10
20100307752
2010-12-09

Fluid treatment systems, compositions and methods for metal ion stabilization in aqueous solutions and/or enhanced fluid performance

#11
20100300967
2010-12-02

Breaker fluids and methods of using the same

#12
20100167963
2010-07-01

Well treatment

#13
20100081584
2010-04-01

Compositions and methods for treatment of well bore tar

#14
20100056405
2010-03-04

Self-diverting acid treatment with formic-acid-free corrosion inhibitor

#15
20090095534
2009-04-16

Compositions and methods for treatment of well bore tar

#16
20080280789
2008-11-13

Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove scale from wellbore tubulars or subsurface equipment

#17
20080255009
2008-10-16

Polycationic viscoelastic compositions

#18
20080248977
2008-10-09

Polycationic viscoelastic compositions

#19
20080248976
2008-10-09

Polycationic viscoelastic compositions

#20
20070215355
2007-09-20

Methods of treating wellbores with recyclable fluids

#21
20070175635
2007-08-02

Scaling inhibitors and method for using the same in high density brines

#22
20070012441
2007-01-18

Apparatus and methods for improved fluid displacement in subterranean formations

#23
20060283599
2006-12-21

Methods for remediating subterranean formations

#24
20060060351
2006-03-23

Apparatus and methods for improved fluid displacement in subterranean formations

#25
20050282712
2005-12-22

Scale control composition for high scaling environments

#26
20050209107
2005-09-22

Composition and process for the treatment of hydrogen sulfide

#27
20050173672
2005-08-11

Dissolved oxygen releasing compound

#28
20050067164
2005-03-31

Method for inhibiting or controlling inorganic scale formations

#29
20050056423
2005-03-17

Methods of removing filter cake from well producing zones

#30
20050034865
2005-02-17

Compositions and methods for degrading filter cake