ClassID:

242533

Y10S507/902 - CPC Classification

Classification description:

Earth boring, well treating, and oil field chemistry Controlled release agent

Recent Application in this class:
#1
20110177982
2011-07-21

Apparatus, compositions, and methods of breaking fracturing fluids

#2
20110127039
2011-06-02

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

#3
20110077175
2011-03-31

Sealant composition

#4
20100236780
2010-09-23

Controlling the pressure within an annular volume of a wellbore

#5
20100163236
2010-07-01

Controlling the pressure within an annular volume of a wellbore

#6
20100152069
2010-06-17

Method for treatment of underground reservoirs

#7
20100096138
2010-04-22

Controlling the pressure within an annular volume of a wellbore

#8
20100056399
2010-03-04

Polyelectrolyte complexes for oil and gas applications

#9
20090188639
2009-07-30

Use of water-soluble polymer complexes in aqueous systems

#10
20090163385
2009-06-25

Well treatment process

#11
20090133878
2009-05-28

Controlling the pressure within an annular volume of a wellbore

#12
20090107677
2009-04-30

Sealant Composition

#13
20080283242
2008-11-20

Apparatus, compositions, and methods of breaking fracturing fluids

#14
20080182763
2008-07-31

Pumpable multiple phase compositions for controlled release applications downhole

#15
20080085843
2008-04-10

Method of treating a subterranean formation with an oil-based composition containing a polysaccharide-based water-superabsorbent material

#16
20080058229
2008-03-06

Polyelectrolyte complexes for oil and gas applications

#17
20070114033
2007-05-24

Controlling the pressure within an annular volume of a wellbore

#18
20060289165
2006-12-28

Methods for effecting controlled break in pH dependent foamed fracturing fluid

#19
20060211580
2006-09-21

Well treating compositions containing water superabsorbent material and method of using the same

#20
20060162928
2006-07-27

Process for treating a formation

#21
20060124302
2006-06-15

Well treating compositions for slow release of treatment agents and methods of using the same

#22
20060124301
2006-06-15

Method of inhibiting or controlling formation of inorganic scales

#23
20060002879
2006-01-05

Methods of treating keratin based substrates

#24
20050252659
2005-11-17

Degradable additive for viscoelastic surfactant based fluid systems

#25
20050183837
2005-08-25

Use of water-soluble polymer complexes in aqueous systems

#26
20050139356
2005-06-30

Method for enhancing the retention efficiency of treatment chemicals in subterranean formations

#27
20050130845
2005-06-16

Method and composition for the triggered release of polymer-degrading agents for oil field use

#28
20050126781
2005-06-16

Methods of generating gas in well treating fluids

#29
20050107263
2005-05-19

Pumpable multiple phase compositions for controlled release applications downhole

#30
20050103496
2005-05-19

Compositions and methods for weighting a breaker coating for uniform distribution in a particulate pack

#31
20050090404
2005-04-28

Internal breaker

#32
20050065037
2005-03-24

Product for coating wellbore screens