Patents by Inventor Todd Douglas Cooper

Todd Douglas Cooper 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).

  • Managed pressure cementing
    Patent number: 9951600
    Abstract: A method of cementing a tubular string in a wellbore includes: deploying the tubular string into the wellbore; pumping cement slurry into the tubular string; launching a cementing plug after pumping the cement slurry; propelling the cementing plug through the tubular string, thereby pumping the cement slurry through the tubular string and into an annulus formed between the tubular string and the wellbore; and controlling flow of fluid displaced from the wellbore by the cement slurry to control pressure of the annulus.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 24, 2018
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Don M. Hannegan, Cesar Pena, David Pavel, Michael Brian Grayson, Said Boutalbi, Todd Douglas Cooper, Timothy P. Dunn, Frank Zamora, Jr.
  • MANAGED PRESSURE CEMENTING
    Publication number: 20160145995
    Abstract: A method of cementing a tubular string in a wellbore includes: deploying the tubular string into the wellbore; pumping cement slurry into the tubular string; launching a cementing plug after pumping the cement slurry; propelling the cementing plug through the tubular string, thereby pumping the cement slurry through the tubular string and into an annulus formed between the tubular string and the wellbore; and controlling flow of fluid displaced from the wellbore by the cement slurry to control pressure of the annulus.
    Type: Application
    Filed: February 1, 2016
    Publication date: May 26, 2016
    Inventors: Don M. HANNEGAN, Cesar PENA, David PAVEL, Michael Brian GRAYSON, Said BOUTALBI, Todd Douglas COOPER, Timothy P. DUNN, Frank ZAMORA, JR.
  • Managed pressure cementing
    Patent number: 9249646
    Abstract: A method of cementing a tubular string in a wellbore includes: deploying the tubular string into the wellbore; pumping cement slurry into the tubular string; launching a cementing plug after pumping the cement slurry; propelling the cementing plug through the tubular string, thereby pumping the cement slurry through the tubular string and into an annulus formed between the tubular string and the wellbore; and controlling flow of fluid displaced from the wellbore by the cement slurry to control pressure of the annulus.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: February 2, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Don M. Hannegan, Cesar Pena, David Pavel, Michael Brian Grayson, Said Boutalbi, Todd Douglas Cooper, Timothy P. Dunn, Frank Zamora, Jr.