ClassID:

242539

Y10S507/91 - CPC Classification

Classification description:

Earth boring, well treating, and oil field chemistry Earth boring fluid devoid of discrete aqueous phase

Recent Application in this class:
#1
20120142561
2012-06-07

Equivalent circulating density control in deep water drilling

#2
20110237466
2011-09-29

Equivalent circulating density control in deep water drilling

#3
20110031024
2011-02-10

Methods of using drilling fluids containing biodegradable organophilic clay

#4
20100323927
2010-12-23

Equivalent circulating density control in deep water drilling

#5
20100311619
2010-12-09

Emulsifier free oil-based wellbore fluid

#6
20100292110
2010-11-18

Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells

#7
20100044050
2010-02-25

Fluorinated surfactants and methods of using the same

#8
20090227478
2009-09-10

Equivalent circulating density control in deep water drilling

#9
20090062155
2009-03-05

Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells

#10
20080227670
2008-09-18

Drilling fluids containing biodegradable organophilic clay treated with an amide-containing quaternary ammonium surfactant

#11
20080051551
2008-02-28

Compositions and methods for improving the productivity of hydrocarbon producing wells using a non-ionic fluorinated polymeric surfactant

#12
20080051300
2008-02-28

Compositions and method for improving the productivity of hydrocarbon producing wells

#13
20070114036
2007-05-24

Silicate-containing additives for well bore treatments and associated methods

#14
20070111895
2007-05-17

Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subterranean formations

#15
20070027253
2007-02-01

Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion

#16
20070017676
2007-01-25

Methods for wellbore strengthening and controlling fluid circulation loss

#17
20060166839
2006-07-27

Methods of using drilling fluids containing biodegradable organophilic clay

#18
20060144594
2006-07-06

Silicate-containing additives for well bore treatments and associated methods

#19
20060073986
2006-04-06

Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion

#20
20060032632
2006-02-16

Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subterranean formations