Patents-Review.com
ClassID:

104267 ⎘

C09K8/18 - 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; Well-drilling compositions; Aqueous well-drilling compositions; Clay-containing compositions characterised by the organic compounds

Sub-classes:
Recent Application in this class:
#1
20240343965
2024-10-17

LUBRICATING ADDITIVE

 #2
20240043733
2024-02-08

Method for drilling a wellbore with a reduced ferrite sag composition

 #3
20220243112
2022-08-04

Synergistic Performance of Amine Blends in Shale Control

 #4
20220112424
2022-04-14

FLUIDS FOR HYDRAULIC FRACTURING

 #5
20210371723
2021-12-02

Compositions for delayed acid generation for high temperature applications and methods of making and using same

 #6
20210284895
2021-09-16

FLUIDS FOR HYDRAULIC FRACTURING

 #7
20210032523
2021-02-04

Water-based drilling fluids that include lubricants

 #8
20200332170
2020-10-22

Methods of suspending weighting agents in a drilling fluid

 #9
20200317981
2020-10-08

Water-based drilling, completion, and workover fluid composition with reduced barite sagging

 #10
20200283336
2020-09-10

Hydrating swellable clays

 #11
20200017747
2020-01-16

Date pit based drilling fluid composition

 #12
20200002593
2020-01-02

Method for making a drilling composition and treating a subterranean formation

 #13
20190233706
2019-08-01

Drilling fluid composition containing treated date pit particles and methods of use thereof

 #14
20190225542
2019-07-25

Hydrating swellable clays

 #15
20190062618
2019-02-28

Methods for determining an optimal surfactant structure for oil recovery

 #16
20180327651
2018-11-15

Methods for determining an optimal surfactant structure for oil recovery

 #17
20180065889
2018-03-08

Functionalized polyamines for clay mitigation

 #18
20170335165
2017-11-23

Drilling composition, process for its preparation, and applications thereof

 #19
20170275971
2017-09-28

A METHOD AND A SYSTEM FOR EXTRACTING FLUIDS

 #20
20170275519
2017-09-28

In situ generation of nano-clay drilling fluid

 #21
20170233634
2017-08-17

Coiled-tubing fluid-lubricant composition and related methods

 #22
20170233633
2017-08-17

Drilling composition, process for its preparation, and applications thereof

 #23
20150368538
2015-12-24

High pressure high temperature (HPHT) aqueous drilling mud composition and process for preparing the same

 #24
20150322325
2015-11-12

Ecofriendly lubricating additives for water-based wellbore drilling fluids

 #25
20150210913
2015-07-30

CLAY STABILIZER AND METHOD OF USE

 #26
20150065614
2015-03-05

Functionalized polyamines for clay mitigation

 #27
20150018317
2015-01-15

Biocidal composition

 #28
20140151061
2014-06-05

DRILLING COMPOSITION, PROCESS FOR ITS PREPARATION, AND APPLICATIONS THEREOF

 #29
20140142003
2014-05-22

Biologically-derived monoesters as drilling fluids

 #30
20120325492
2012-12-27

Drilling Composition, Process for its Preparation, and Applications Thereof

 #31
20120080195
2012-04-05

Drilling Composition, Process for its Preparation, and Applications Thereof

 #32
20100258307
2010-10-14

DRILLING COMPOSITION, PROCESS FOR ITS PREPARATION, AND APPLICATIONS THEREOF

 #33
20100197526
2010-08-05

Method for making particulate slurries and particulate slurry compositions

 #34
20100181068
2010-07-22

Method and System for Treating Hydrocarbon Formations

 #35
20090221454
2009-09-03

Methods of using reactive surfactants in subterranean operations

 #36
20090099046
2009-04-16

METHODS, DRILLING FLUIDS AND DRILLING FLUID ADDITIVES FOR LIMITING TAR SAND ACCRETION ON METAL SURFACES

 #37
20080009422
2008-01-10

HIGH PERFORMANCE WATER BASE DRILLING FLUID

 #38
20070015669
2007-01-18

Method for making particulate slurries and particulate slurry compositions

 #39
20060264332
2006-11-23

Methods of using reactive surfactants in subterranean operations

 #40
20060260813
2006-11-23

Methods of using reactive surfactants in subterranean operations

 #41
20050054540
2005-03-10

Phospholipid lubricating agents in aqueous based drilling fluids

 #42
15189624
2016-12-20

Process of manufacturing thickeners and use of thus produced thickeners in high-viscosity non aqueous formulations