Patents by Inventor Anne-Marie Friestad

Anne-Marie Friestad 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).

  • Fluid pressure transmission pill
    Patent number: 9279304
    Abstract: A pill for wellbore operations, that includes a base fluid; and at least two polymers that interact to form a gelatinous structure characterized as isolating and controllably transmitting hydrostatic pressure between a first wellbore fluid above the pill in a wellbore and a second wellbore fluid below the pill in the wellbore is disclosed.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: March 8, 2016
    Assignee: M-I L.L.C.
    Inventors: Ole Iacob Prebensen, Monica Norman, Anne-Marie Friestad, Egil Ronaes
  • FLUID PRESSURE TRANSMISSION PILL
    Publication number: 20150107858
    Abstract: A pill for wellbore operations, that includes a base fluid; and at least two polymers that interact to form a gelatinous structure characterized as isolating and controllably transmitting hydrostatic pressure between a first wellbore fluid above the pill in a wellbore and a second wellbore fluid below the pill in the wellbore is disclosed.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Inventors: Ole Iacob Prebensen, Monica Norman, Anne-Marie Friestad, Egil Ronaes
  • Fluid pressure transmission pill
    Patent number: 8927466
    Abstract: A pill for wellbore operations, that includes a base fluid; and at least two polymers that interact to form a gelatinous structure characterized as isolating and controllably transmitting hydrostatic pressure between a first wellbore fluid above the pill in a wellbore and a second wellbore fluid below the pill in the wellbore is disclosed.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 6, 2015
    Assignee: M-I LLC
    Inventors: Ole Iacob Prebensen, Monica Norman, Anne-Marie Friestad, Egil Ronaes
  • HIGH PERFORMANCE WATER BASED FLUIDS
    Publication number: 20110136701
    Abstract: A water based wellbore fluid that includes an aqueous fluid; a micronized weighting agent; a polysaccharide derivative; and at least one fatty acid ester derivative is disclosed.
    Type: Application
    Filed: August 20, 2009
    Publication date: June 9, 2011
    Applicant: M-I SWACO NORGE AS
    Inventors: Ole Iacob Prebensen, Monica Norman, Anne Myrvoid Fosse, Anne-Marie Friestad
  • FLUID PRESSURE TRANSMISSION PILL
    Publication number: 20100186957
    Abstract: A pill for wellbore operations, that includes a base fluid; and at least two polymers that interact to form a gelatinous structure characterized as isolating and controllably transmitting hydrostatic pressure between a first wellbore fluid above the pill in a wellbore and a second wellbore fluid below the pill in the wellbore is disclosed.
    Type: Application
    Filed: April 3, 2008
    Publication date: July 29, 2010
    Applicant: M-I LLC
    Inventors: Ole Iacob Prebensen, Monica Norman, Anne-Marie Friestad, Egil Ronaes