C09K2208/02 - CPC Classification Index

ClassID:

104982 ⎘

C09K2208/02 - CPC Classification

Classification description:

Aspects relating to compositions of drilling or well treatment fluids Spotting, i.e. using additives for releasing a stuck drill

Recent Application in this class:

20210340425

2021-11-04

Terpene-based spotting fluid compositions for differential sticking

20210054254

2021-02-25

Drilling fluid lubricant and preparation method and use thereof

20200263074

2020-08-20

Alkyl ester spotting fluid compositions for differential sticking

20200263073

2020-08-20

Alkyl ester spotting fluid compositions for differential sticking

20190225873

2019-07-25

Guanidine- or guanidinium-containing compounds for treatment of subterranean formations

20190185729

2019-06-20

Treatment fluids comprising calcium aluminate cement and methods of use

20180265761

2018-09-20

Constitutionally dynamic polymer for treatment of subterranean formations

20170321105

2017-11-09

Weighted Composition for Treatment of a Subterranean Formation

20170313926

2017-11-02

Treatment fluids comprising calcium aluminate cement and methods of use

#10

20170226412

2017-08-10

Resin and hardener consolidation composition

#11

20170226401

2017-08-10

Terpene-Based Spotting Fluid Compositions for Differential Sticking

#12

20170226400

2017-08-10

Alkyl ester spotting fluid compositions for differential sticking

#13

20170183560

2017-06-29

Guanidine- or guanidinium-containing compounds for treatment of subterranean formations

#14

20170166805

2017-06-15

Metal-Organic Frameworks as Encapsulating Agents

#15

20170145282

2017-05-25

Clay stabilizers

#16

20170137694

2017-05-18

Cementitious compositions comprising a non-aqueous fluid and an alkali-activated material

#17

20170096596

2017-04-06

Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industry

#18

20170088763

2017-03-30

INTERNAL BREAKER COMPOSITIONS FOR WELLBORE APPLICATIONS

#19

20160272871

2016-09-22

Subterranean treatment with compositions including hexaaquaaluminum trihalide

#20

20160230066

2016-08-11

Compositions for treating subterranean formations

#21

20160229797

2016-08-11

Low pH metal-free preparation of aminated organic acid

#22

20160145482

2016-05-26

COMPOSITIONS FOR TREATING SUBTERRANEAN FORMATIONS

#23

20160137905

2016-05-19

COMPOSITION FOR FINES AGGLOMERATION

#24

20160053160

2016-02-25

Methods for enhancing propped fracture conductivity

#25

20160040055

2016-02-11

Compositions for treating subterranean formations

#26

20150152313

2015-06-04

Rheology modifier for drilling and well treatment fluids

#27

20150107858

2015-04-23

Fluid pressure transmission pill

#28

20130203636

2013-08-08

Water-based mud lubricant using fatty acid polyamine salts and fatty acid esters

#29

20110036579

2011-02-17

Water-based mud lubricant using fatty acid polyamine salts and fatty acid esters

#30

20100292107

2010-11-18

Spotting fluids containing syrups

#31

20100256021

2010-10-07

Oligoglycerol fatty acid ester thickeners for oil-based drilling fluids

#32

20100186957

2010-07-29

Fluid pressure transmission pill

#33

20100167961

2010-07-01

Stuck drill pipe additive and method

#34

20080314592

2008-12-25

Microemulsion or in-situ microemulsion for releasing stuck pipe

#35

20060160705

2006-07-20

Spotting fluid compositions and associated methods

#36

20050239664

2005-10-27

Spotting fluid for use with oil-based muds and method of use