Patents by Inventor Alex Ahrenst

Alex Ahrenst 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).

  • Characterization of non-radioactive laced cement using logging while drilling and wireline nuclear measurements
    Patent number: 10053979
    Abstract: A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; and logging the wellbore with a logging-while-drilling tool to determine at least one characteristic of the doped wellbore fluid. A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; logging the wellbore with a logging tool; and determining a location of at least one fracture by elemental spectroscopy measurements.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 21, 2018
    Assignee: Schlumberger Technology Corporation
    Inventors: John Rasmus, Alex Ahrenst, Ana Peternell, Jeffrey Miles, Martinus Johannes Bernardus Bogaerts
  • CHARACTERIZATION OF NON-RADIOACTIVE LACED CEMENT USING LOGGING WHILE DRILLING AND WIRELINE NUCLEAR MEASUREMENTS
    Publication number: 20180087376
    Abstract: A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; and logging the wellbore with a logging-while-drilling tool to determine at least one characteristic of the doped wellbore fluid. A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; logging the wellbore with a logging tool; and determining a location of at least one fracture by elemental spectroscopy measurements.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 29, 2018
    Inventors: John Rasmus, Alex Ahrenst, Ana Peternell, Jeffrey Miles, Martinus Johannes Bernardus Bogaerts
  • Friction reduction fluids
    Patent number: 9034802
    Abstract: The invention provides an oilfield suspending friction reducer treatment composition fluid comprising from about 0.001 weight percent to about 0.5 weight percent of a drag reducing surfactant; at least one drag reducing enhancer selected from the group consisting of polymeric drag reduction enhancers, monomeric drag reduction enhancers, and mixtures thereof.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: May 19, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Alex Ahrenst, Bernhard Lungwitz, Christopher N. Fredd, Carlos Abad, Nihat Gurmen, Yiyan Chen, John Lassek, Paul Howard, William Troy Huey, Zakir Azmi, Donald Hodgson, III, Oscar Bustos
  • Friction Reduction Fluids
    Publication number: 20080064614
    Abstract: The invention provides an oilfield suspending friction reducer treatment composition fluid comprising from about 0.001 weight percent to about 0.5 weight percent of a drag reducing surfactant; at least one drag reducing enhancer selected from the group consisting of polymeric drag reduction enhancers, monomeric drag reduction enhancers, and mixtures thereof.
    Type: Application
    Filed: August 3, 2007
    Publication date: March 13, 2008
    Inventors: Alex Ahrenst, Bernhard Lungwitz, Christopher Fredd, Carlos Abad, Nihat Gurmen, Yiyan Chen, John Lassek, Paul Howard, William Huey, Zakir Azmi, Donald Hodgson, Oscar Bustos
  • 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