Patents Represented by Attorney Rachel Stiegel
  • Patent number: 7259688
    Abstract: A reservoir production control system includes a plurality of wells for producing a reservoir linked to a central computer over a downhole communication network and a surface communication network. Both the downhole and the surface communication networks are wireless communications paths for transmitting downhole data and surface data to the central computer. Both networks include a series of interconnected tubing or pipe that allows transmission of data over electrically isolated portions of the pipe and tubing. After integrating and analyzing all relevant data and comparing the data with a reservoir model, the central computer initiates changes in a plurality of downhole control devices associated with the wells, thereby optimizing the production of the reservoir.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: August 21, 2007
    Assignee: Shell Oil Company
    Inventors: John Michele Hirsch, George Leo Stegemeier, Harold J. Vinegar, Robert Rex Burnett, Frederick Gordon Carl, Jr., William Mountjoy Savage, James William Hall
  • Patent number: 7114561
    Abstract: A petroleum well having a borehole extending into a formation is provided. A piping structure is positioned within the borehole, and an induction choke is positioned around the piping structure downhole. A communication system is provided along the piping structure between a surface of the well and the induction choke. A downhole module is positioned on an exterior surface of the piping structure and is configured to measure characteristics of the formation. The formation characteristics, such as pressure and resistivity, are communicated to the surface of the well along the piping structure.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: October 3, 2006
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr., Ilya Emil Berchenko
  • Patent number: 7073594
    Abstract: An apparatus and methods of electrically controlling downhole well interval inflow and/or injection. The downhole controllable well section having a communications and control module, a sensor, an electrically controllable valve and an induction choke. The electrically controllable valve is adapted to regulate flow between an exterior of the tubing and an interior of the tubing. Power and signal transmission between surface and downhole is carried out via the tubing and/or the casing. When there are multiple downhole controllable well sections, flow inhibitors separate the well sections.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 11, 2006
    Assignee: Shell Oil Company
    Inventors: George Leo Stegemeier, Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr., John Michele Hirsch
  • Patent number: 7075454
    Abstract: A petroleum well for producing petroleum products that incorporates a system adapted to provide power to a downhole device in the well. The system includes a current impedance device and a downhole power storage device. The current impedance device is positioned such that when a time-varying electrical current is transmitted through the portion of a piping structure and/or a voltage potential forms between one side of the current impedance device and another side of the current impedance device. The device is adapted to be electrically connected to the piping structure and/or across the voltage potential formed by the current impedance device, is adapted to be recharged by the electrical current, and is adapted to be electrically connected to the downhole device to provide power to the downhole device as needed.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 11, 2006
    Assignee: Shell Oil Company
    Inventors: John Michele Hirsch, Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr.
  • Patent number: 7055592
    Abstract: An induction choke in a petroleum well where a voltage potential is developed across the choke to power and communicate with devices and sensors in the well. Preferably, the induction choke is a ferromagnetic material and acts as an impedance to a time-varying current, e.g. AC. The petroleum well includes a cased wellbore having a tubing string positioned within and longitudinally extending within the casing. A controllable gas lift valve, sensor, or other device is coupled to the tubing. The valve sensor, or other device is powered and controlled from the surface. Communication signals and power are sent from the surface using the tubing, casing, or liner as the conductor with a casing or earth ground. For example, AC current is directed down a casing or tubing or a lateral where the current encounters a choke. The voltage potential developed across the choke is used to power electronic devices and sensors near the choke.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 6, 2006
    Assignee: Shell Oil Company
    Inventors: Ronald Marshall Bass, Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr.