Patents by Inventor Sam Smonian

Sam Smonian 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).

  • Downhole flow meter
    Patent number: 6860325
    Abstract: This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure measurement mechanism may comprise two separate absolute pressure measurement devices or a single differential pressure measurement device. Flow rate through the valve is determined from the pressure drop across the valve. In wellbores having multiple zones, a variable orifice valve together with a differential pressure measurement mechanism may be deployed for each zone. The flow rate through each of the zones and at the surface can then be monitored and controlled.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, Gary M. Oddie, Sam Smonian
  • Downhole flow meter
    Publication number: 20040035577
    Abstract: This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure measurement mechanism may comprise two separate absolute pressure measurement devices or a single differential pressure measurement device. Flow rate through the valve is determined from the pressure drop across the valve. In wellbores having multiple zones, a variable orifice valve together with a differential pressure measurement mechanism may be deployed for each zone. The flow rate through each of the zones and at the surface can then be monitored and controlled.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 26, 2004
    Inventors: Terizhandur S. Ramakrishnan, Gary M. Oddie, Sam Smonian
  • Downhole flow meter
    Patent number: 6629564
    Abstract: This invention comprises the use of a variable orifice valve as a flow controller and flow meter. Pressure measurements are taken upstream and downstream of the variable orifice valve by way of a differential pressure measurement mechanism. The differential pressure measurement mechanism may comprise two separate absolute pressure measurement devices or a single differential pressure measurement device. Flow rate through the valve is determined from the pressure drop across the valve. In wellbores having multiple zones, a variable orifice valve together with a differential pressure measurement mechanism may be deployed for each zone. The flow rate through each of the zones and at the surface can then be monitored and controlled.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: October 7, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, Gary M. Oddie, Sam Smonian