Featured patents

High Molecular Weight Low Polydispersity Polymers
US 08815784 B2, Aug. 26, 2014, Nitrogen is attached directly or indirectly to the acrylic acid monomer or derivative by nonionic bonding, Rajesh K. Saini et al. / Halliburton Energy Services, Inc. (Houston, US)
A cementing fluid for use in a subterranean formation comprising:…

Volatile-Phosphorus Free Gelling Agents
US 08871693 B2, Oct. 28, 2014, Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding, Chris Collett et al. / GasFrac Energy Services Inc. (Calgary, CA)
A gelling agent for a hydrocarbon fracturing fluid comprising the general formula…

Treatment Fluids Made of Halogenisocyanuric Acid and Its Salts for Operations in a Well
US 08772206 B2, July 8, 2014, Nitrogen is attached directly or indirectly to the acrylic acid monomer or derivative by nonionic bonding, Andrey Mirakyan et al. / Schlumberger Technology Corporation (Sugar Land, US)
A method comprising:…

Water-Based Fluid Loss Additive Containing an Amphiphilic Dispersant for Use in a Well
US 08741817 B2, June 3, 2014, Carbohydrate is polysaccharide, Vikrant Wagle et al. / Halliburton Energy Services, Inc. (Houston, US)
A well treatment composition for use in a cement composition comprising:…

Swellable Polymer With Anionic Sites
US 08669214 B2, March 11, 2014, Nitrogen is attached directly or indirectly to the acrylic acid monomer or derivative by nonionic bonding, Faye L. Scully et al. / ConocoPhillips Company (Houston, US)
A composition comprising expandable polymeric particles having charged monomers…

Methods of Using Reactive Surfactants in Subterranean Operations
US 08653010 B2, Feb. 18, 2014, Contains organic component, Philip D. Nguyen et al. / Halliburton Energy Services, Inc. (Houston, US)
A method comprising:…

Drilling Fluids Having Reduced Sag Potential and Related Methods
US 08569213 B2, Oct. 29, 2013, Contains inorganic component other than water or clay, Nicholas Braley et al. / Halliburton Energy Services, Inc. (Houston, US)
An organophilic clay-free drilling fluid comprising:…

Settable Compositions Comprising Unexpanded Perlite and Methods of Cementing in Subterranean Formations
US 08486868 B2, July 16, 2013, Organic component is solid synthetic resin, Chad Brenneis et al. / Halliburton Energy Services, Inc. (Houston, US)
A subterranean formation settable composition comprising:…

Oxidative Internal Breaker System With Breaking Activators for Viscoelastic Surfactant Fluids
US 08481462 B2, July 9, 2013, Contains inorganic component other than water or clay, Belgin Baser et al. / Schlumberger Technology Corporation (Sugar Land, US)
An oilfield treatment composition comprising…

Method for the Fracture Stimulation of a Subterranean Formation Having a Wellbore by Using Impact-Modified Thermoset Polymer Nanocomposite Particles as Proppants
US 08461087 B2, June 11, 2013, Organic component is solid synthetic resin, Jozef Bicerano / Sun Drilling Products Corporation (Belle Chasse, US)
A method for fracture stimulation of a subterranean formation having a wellbore,…

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