Patents by Inventor Hatem N. Nasr

Hatem N. Nasr 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).

  • Drilling system with integrated bottom hole assembly
    Patent number: 6206108
    Abstract: The present invention provides a drilling system that utilizes an integrated bottom hole assembly. The bottom hole assembly contains sensors for determining the health of the bottom hole assembly, borehole condition, formation evaluation characteristics, drilling fluid physical and chemical properties, bed boundary conditions around and in front of the drill bit, seismic maps and the desired drilling parameters that include the weight on bit, drill bit speed and the fluid flow rate. A downhole processor controls the operation of the various devices in the bottom hole assembly to effect changes to the drilling parameters and the drilling direction to optimize the drilling effectiveness.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: March 27, 2001
    Assignee: Baker Hughes Incorporated
    Inventors: Robert P. MacDonald, Volker Krueger, Hatem N. Nasr, John W. Harrell, Roger W. Fincher
  • Drilling systems with sensors for determining properties of drilling fluid downhole
    Patent number: 6176323
    Abstract: The present invention provides a drilling system for drilling oilfield boreholes or wellbores utilizing a drill string having a drilling assembly conveyed downhole by a tubing (usually a drill pipe or coiled tubing). The drilling assembly includes a bottom hole assembly (BHA) and a drill bit. The bottom hole assembly preferably contains commonly used measurement-while-drilling sensors. The drill string also contains a variety of sensors for determining downhole various properties of the drilling fluid. Sensors are provided to determine density, viscosity, flow rate, clarity, compressibility, pressure and temperature of the drilling fluid at one or more downhole locations. Chemical detection sensors for detecting the presence of gas (methane) and H2S are disposed in the drilling assembly. Sensors for determining fluid density, viscosity, pH, solid content, fluid clarity, fluid compressibility, and a spectroscopy sensor are also disposed in the BHA.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: January 23, 2001
    Assignee: Baker Hughes Incorporated
    Inventors: John B. Weirich, Ronald G. Bland, William W. Smith, Jr., Volker Krueger, John W. Harrell, Hatem N. Nasr, Valeri Papanyan
  • Knowledge and model based adaptive signal processor
    Patent number: 5018215
    Abstract: A knowledge and model based adaptive signal processor for ensuring optimum performance in automated object recognition (AOR) systems. The invention does not require ground-truth information but uses predictive performance models for parameter adaption and updates for the AOR. The performance models are representations of continuous surfaces that interpolate and extrapolate for data and scenarios not previously tested. The present invention increases probability of detection and decreases false detection alarm rates of AOR systems.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: May 21, 1991
    Assignee: Honeywell Inc.
    Inventors: Hatem N. Nasr, Firooz A. Sadjadi, Michael E. Bazakos, Hossien Amehdi