Patents by Inventor Said BOUTALBI

Said BOUTALBI 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 drilling system having well control mode
    Patent number: 10329860
    Abstract: A method of drilling a subsea wellbore includes drilling the subsea wellbore and, while drilling the subsea wellbore: measuring a flow rate of the drilling fluid injected into a tubular string; measuring a flow rate of returns; comparing the returns flow rate to the drilling fluid flow rate to detect a kick by a formation being drilled; and exerting backpressure on the returns using a first variable choke valve. The method further includes, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (PCA) against the tubular string; and diverting the flow of returns from the PCA, through a choke line having a second variable choke valve, and through the first variable choke valve.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: June 25, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Said Boutalbi, Michael Brian Grayson
  • 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 DRILLING SYSTEM HAVING WELL CONTROL MODE
    Publication number: 20170145764
    Abstract: A method of drilling a subsea wellbore includes drilling the subsea wellbore and, while drilling the subsea wellbore: measuring a flow rate of the drilling fluid injected into a tubular string; measuring a flow rate of returns; comparing the returns flow rate to the drilling fluid flow rate to detect a kick by a formation being drilled; and exerting backpressure on the returns using a first variable choke valve. The method further includes, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (PCA) against the tubular string; and diverting the flow of returns from the PCA, through a choke line having a second variable choke valve, and through the first variable choke valve.
    Type: Application
    Filed: February 7, 2017
    Publication date: May 25, 2017
    Inventors: Said BOUTALBI, Michael Brian GRAYSON
  • 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.
  • MANAGED PRESSURE DRILLING SYSTEM HAVING WELL CONTROL MODE
    Publication number: 20140048331
    Abstract: A method of drilling a subsea wellbore includes drilling the subsea wellbore and, while drilling the subsea wellbore: measuring a flow rate of the drilling fluid injected into a tubular string; measuring a flow rate of returns; comparing the returns flow rate to the drilling fluid flow rate to detect a kick by a formation being drilled; and exerting backpressure on the returns using a first variable choke valve. The method further includes, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (PCA) against the tubular string; and diverting the flow of returns from the PCA, through a choke line having a second variable choke valve, and through the first variable choke valve.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: Said BOUTALBI, Michael Brian GRAYSON