Patents by Inventor Alexander Shapovalov

Alexander Shapovalov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods of treating wellbores with recyclable fluids
    Patent number: 7776796
    Abstract: Methods for treating wellbores using fluids containing a sphingan heteropolysaccharide which contributes viscosity stability and a decrease in friction pressure. Some methods are clean-out operations using recyclable-viscosity fluids containing at least a sphingan heteropolysaccharide and an optional salt. Others include methods of pumping fluids incorporating sphingan heteropolysaccharides to reduce pumping frictional pressure.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 17, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Alexander Shapovalov, Alejandro Pena, Bernhard Lungwitz, Rene Schuurman
  • Treatment and Production of Subterranean Formations with Heteropolysaccharides
    Publication number: 20080026957
    Abstract: Disclosed are methods of treating wells and producing fluids from subterranean formations with treatment fluids comprising heteropolysaccharides. In particular, the invention relates to treatment and production methods with fluids containing a heteropolysaccharide, aqueous medium, and an electrolyte, wherein the fluids may further include a gas component, a surfactant and/or an organoamino compound. The fluids render significant drag reduction, good Theological properties and unusually rapid hydration rates.
    Type: Application
    Filed: August 8, 2007
    Publication date: January 31, 2008
    Inventors: M. Gurmen, Paul Howard, Carlos Abad, Alex Ahrenst, Temara Peet, Alejandro Pena, Alexander Shapovalov
  • Methods of Treating Wellbores with Recyclable Fluids
    Publication number: 20070215355
    Abstract: Methods for treating wellbores using fluids containing a sphingan heteropolysaccharide which contributes viscosity stability and a decrease in friction pressure. Some methods are clean-out operations using recyclable-viscosity fluids containing at least a sphingan heteropolysaccharide and an optional salt. Others include methods of pumping fluids incorporating sphingan heteropolysaccharides to reduce pumping frictional pressure.
    Type: Application
    Filed: August 16, 2006
    Publication date: September 20, 2007
    Inventors: Alexander Shapovalov, Alejandro Pena, Bernhard Lungwitz, Rene Schuurman