Patents by Inventor S. Ahmad Zamanian

S. Ahmad Zamanian 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).

  • Method for determining uncertainty with projected wellbore position and attitude
    Patent number: 8694257
    Abstract: A system and method for determining uncertainty of a wellbore orientation is disclosed. The system and method obtains a measurement related to a first orientation of a drill string at a measurement device. Based on the first orientation and drilling settings, the system and method predict a second orientation. A probability of the second orientation being within a predetermined area is also obtained. As a result of this information, an action may be taken, such as, skipping a planned static survey, obtaining a static survey prior to the plan, or changing a drilling setting.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: April 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: S. Ahmad Zamanian, Dimitrios Pirovolou
  • METHOD FOR DETERMINING UNCERTAINTY WITH PROJECTED WELLBORE POSITION AND ATTITUDE
    Publication number: 20120048618
    Abstract: A system and method for determining uncertainty of a wellbore orientation is disclosed. The system and method obtains a measurement related to a first orientation of a drill string at a measurement device. Based on the first orientation and drilling settings, the system and method predict a second orientation. A probability of the second orientation being within a predetermined area is also obtained. As a result of this information, an action may be taken, such as, skipping a planned static survey, obtaining a static survey prior to the plan, or changing a drilling setting.
    Type: Application
    Filed: August 30, 2010
    Publication date: March 1, 2012
    Inventors: S. Ahmad Zamanian, Dimitrios Pirovolou