Featured patents

Anionic Polyalkoxy Group Comprising Surfactants on Basis of Guerbet-Alcohols, Method of Manufacture and Use in Enhanced Oil Recovery (EOR) Applications
US 08841241 B2, Sept. 23, 2014, Organic component contains an ether linkage, Gabriela Alvarez-Jurgenson et al. / Board of Regents, The University of Texas System (Austin, US)
An anionic ether surfactant of the general formula (I)…

Drag-Reducing Copolymer Compositions
US 08865632 B1, Oct. 21, 2014, Polymer derived from acrylic acid monomer or derivative, Todd Sanner et al. / CESI Chemical, Inc. (Marlow, US)
A well treatment composition for reducing drag in a well, pipeline, or gathering…

Spherical Pellets Containing Common Clay Particulate Material Useful as a Proppant in Hydraulic Fracturing of Oil and Gas Wells
US 08772207 B2, July 8, 2014, Contains inorganic component other than water or clay, David Glenn Hall et al. / Brownwood Clay Holdings, LLC (Austin, US)
A ceramic propping agent comprising:…

Drilling Fluid and Methods
US 08703658 B2, April 22, 2014, Organic component contains ether linkage, Carl Keith Smith / Canadian Energy Services L.P. (Calgary, CA)
A method for drilling a wellbore through a formation, the method comprising:…

Fluid Loss Pills
US 08664165 B2, March 4, 2014, Hydroxyalkylcellulose, Bethicia B. Prasek et al. / M-I L.L.C. (Houston, US)
A fluid loss pill comprising:…

Method of Using Composites in the Treatment of Wells
US 08664168 B2, March 4, 2014, Contains inorganic component other than water or clay, William H. Steiner / Baker Hughes Incorporated (Houston, US)
A method of treating a subterranean formation or a wellbore which comprises…

Polymeric Additives for Enhancement of Treatment Fluids Comprising Viscoelastic Surfactants and Methods of Use
US 08618026 B2, Dec. 31, 2013, Organic component is quaternary ammonium salt, Ryan G. Ezell et al. / Halliburton Energy Services, Inc. (Houston, US)
A subterranean treatment additive comprising:…

Chlorine Dioxide Precursor and Methods of Using Same
US 08609594 B2, Dec. 17, 2013, Organic component contains carboxylic acid, ester, or salt thereof, John Y. Mason / Sabre Intellectual Property Holdings LLC (Slingerlands, US)
A method for generating chlorine dioxide, said method comprising the steps of:…

Methods for Determining Reactive Index for Cement Kiln Dust, Associated Compositions, and Methods of Use
US 08609595 B2, Dec. 17, 2013, Contains inorganic component other than water or clay, Ronnie G. Morgan et al. / Halliburton Energy Services, Inc. (Houston, US)
A method of treating a well comprising:…

Method and Composition for Enhanced Hydrocarbons Recovery
US 08513168 B2, Aug. 20, 2013, The sulfur is part of a sulfonate group, Thomas Carl Semple et al. / Shell Oil Company (Houston, US)
A method of treating a hydrocarbon containing formation, comprising:…

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