Featured patents

Enhancing Drag Reduction Properties of Slick Water Systems
US 08841240 B2, Sept. 23, 2014, Organic component is quaternary ammonium salt, Frank Zamora et al. / Clearwater International, LLC (Houston, US)
A method for fracturing a formation comprising:…

Viscoelastic Compositions
US 08785355 B2, July 22, 2014, The sulfur is part of a sulfonate group, Robert Seth Hartshorne et al. / Schlumberger Technology Corporation (Sugar Land, US)
An aqueous wellbore fluid comprising an anionic viscoelastic surfactant…

Proppant Particles Formed From Slurry Droplets and Method of Use
US 08865631 B2, Oct. 21, 2014, Carbohydrate is polysaccharide, Robert J. Duenckel et al. / Carbo Ceramics, Inc. (Houston, US)
A method for making proppant particles, comprising:…

Wellbore Fluid Additives and Methods of Producing the Same
US 08759260 B2, June 24, 2014, Organic component is solid synthetic resin, Jeffery C Gee et al. / Chevron Phillips Chemical Company LP (The Woodlands, US)
A method of forming a wellbore fluid additive, the method comprising reacting…

Lost Circulation Materials and Methods of Using the Same
US 08765645 B2, July 1, 2014, Organic component contains a sulfur attached directly to carbon by nonionic bonding, Matthew Lynn Miller et al. / Halliburton Energy Services, Inc. (Duncan, US)
A method of servicing a wellbore in contact with a subterranean formation,…

Use of Pyroglutamic Acid Esters as Gas Hydrate Inhibitors With Improved Biodegradability
US 08735332 B2, May 27, 2014, Preventing Contaminant Deposits in Petroleum Oil Conduits, Michael Feustel et al. / Clariant Produkte (Deutschland) GmbH (Frankfurt am Main, DE
A method for preventing the formation of gas hydrates in an aqueous phase,…

Water-Based Fluid for Preventing the Formation of W/O Emulsions or for Resolving W/O Emulsions Already Formed in Porous Matrices
US 08691732 B2, April 8, 2014, Organic component is carbohydrate or derivative thereof or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons, Chiara Neva Emiliani et al. / ENI S.p.A. (Rome, IT)
A process, comprising:…

Scale Inhibiting Well Treatment
US 08586511 B2, Nov. 19, 2013, Polymer derived from monomer having quaternary ammonium group, Thomas Hagen et al. / Champion Technologies Ltd. (Aberdeen, GB)
A method for inhibiting scale formation within a hydrocarbon producing system,…

Density-Matched Suspensions and Associated Methods
US 08546310 B2, Oct. 1, 2013, Organic component contains carboxylic acid, ester, or salt thereof, Christopher Gordon et al. / Halliburton Energy Services, Inc. (Houston, US)
A method comprising:…

Aqueous Foaming Compositions With High Tolerance to Hydrocarbons
US 08524641 B2, Sept. 3, 2013, Organic component contains silicon attached directly or indirectly to carbon by nonionic bonding, Kalman Koczo et al. / Momentive Performance Materials Inc. (Waterford, US)
A composition providing a stable foam, comprising…

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