ClassID:

104330

C09K8/602 - page 3 - 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; Compositions for stimulating production by acting on the underground formation containing surfactants

Recent Application in this class:
#601
20060128598
2006-06-15

Viscoelastic surfactant rheology modification

#602
20060128597
2006-06-15

Viscoelastic surfactant rheology modification

#603
20060118302
2006-06-08

Self diverting matrix acid

#604
20060111248
2006-05-25

Viscoelastic surfactant rheology modification

#605
20060105919
2006-05-18

Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance

#606
20060096758
2006-05-11

Method of treating an oil or gas well with biodegradable low toxicity fluid system

#607
20060084579
2006-04-20

Viscoelastic surfactant mixtures

#608
20060081370
2006-04-20

Self diverting matrix acid

#609
20060079431
2006-04-13

2-Hydroxy-3-alkoxypropyl sulfides, sulfones, and sulfoxides: new surface active agents

#610
20060046937
2006-03-02

Viscoelastic fluids containing nanotubes for oilfield uses

#611
20060032407
2006-02-16

Compositions for preventing coagulation of water-in-oil emulsion polymers in aqueous saline well treating fluids

#612
20060020145
2006-01-26

Bis(3-alkoxyalkan-2-ol) sulfides, sulfones, and sulfoxides: new surface active agents

#613
20050269101
2005-12-08

Methods of treating subterranean formations using low-molecular-weight fluids

#614
20050269100
2005-12-08

Methods of treating subterranean formations using low-molecular-weight fluids

#615
20050252658
2005-11-17

System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants

#616
20050209107
2005-09-22

Composition and process for the treatment of hydrogen sulfide

#617
20050170975
2005-08-04

Process for treating an oil well

#618
20050170974
2005-08-04

Process for treating an oil well

#619
20050107265
2005-05-19

Methods for controlling the fluid loss properties of viscoelastic surfactant based fluids

#620
20050037928
2005-02-17

Method of using viscoelastic vesicular fluids to enhance productivity of formations

#621
20050022990
2005-02-03

Compositions and methods for preventing coagulation of water-in-oil emulsion polymers in aqueous saline well treating fluids

#622
18628135
2026-03-31

Well treatment compositions and methods of making and using same

#623
18495788
2024-02-27

Suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof

#624
18396284
2024-12-24

Synergetic surfactant combination comprising polyglycerol fatty acid ester and sorbitan ester and/ or ethoxylated sorbitan ester for fracturing fluid

#625
18352214
2023-12-19

Structural stabilizer for fiber and conventional proppant complex in efficient proppant migration and placement technology of fractured well and preparation method

#626
18346449
2024-11-19

In situ polymer proppant particulates and methods for use thereof

#627
17838667
2023-10-03

Method and composition for acidizing a subsurface formation utilizing a nitrogen gas-generating treatment fluid

#628
17658275
2023-08-29

Interfacial assembly of integrated silica nanoparticles and fluorosurfactant heterostructures in foamed fracturing fluids

#629
17315971
2022-07-12

One-component type multi-functional fracturing fluid additive and process for preparing the same