Patents by Inventor William Symington

William Symington 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).

  • Patent number: 11511143
    Abstract: A mobile fire protection system comprises a first radiation detector for detecting radiation emitted by a flame in a monitoring region. A container holds fire suppression agent, the container being in selective fluid flow communication via a passage with an outlet for discharging the fire suppression agent. A mobile support structure carries the container. A valve is selectively movable between a closed state, wherein the fire suppression agent remains captive within the container, and an open state, wherein flow of the fire suppression agent from the container towards the outlet is enabled. A controller is configured, responsive to the first radiation detector detecting radiation emitted by the flame in the monitoring region, to cause the valve to move to the open state to discharge the fire suppression agent via the passage and the outlet towards the flame.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 29, 2022
    Assignee: DONAPHASE (PTY) LIMITED
    Inventors: Richard Douglas Wooley, Michael Grant Van Niekerk, Jan Daniël Philippus Pretorius, Christoffel Andries Ernst, William Symington Herbert Porter
  • Publication number: 20200197733
    Abstract: A mobile fire protection system comprises a first radiation detector for detecting radiation emitted by a flame in a monitoring region. A container holds fire suppression agent, the container being in selective fluid flow communication via a passage with an outlet for discharging the fire suppression agent. A mobile support structure carries the container. A valve is selectively movable between a closed state, wherein the fire suppression agent remains captive within the container, and an open state, wherein flow of the fire suppression agent from the container towards the outlet is enabled. A controller is configured, responsive to the first radiation detector detecting radiation emitted by the flame in the monitoring region, to cause the valve to move to the open state to discharge the fire suppression agent via the passage and the outlet towards the flame.
    Type: Application
    Filed: August 28, 2018
    Publication date: June 25, 2020
    Inventors: Richard Douglas WOOLEY, Michael Grant VAN NIEKERK, Jan Daniël Philippus PRETORIUS, Christoffel Andries ERNST, William Symington Herbert PORTER
  • Patent number: 8352228
    Abstract: A method for predicting petroleum production is provided. An exemplary embodiment of The computer-implemented comprises computing a first approximation of an amount of generated petroleum that is retained with a complex organic product using a Threshold and a Maximum Retention value. The exemplary method also comprises revising the first approximation by approximating a process of chemical fractionation using at least one partition factor to create a revised approximation and predicting petroleum production based on the revised approximation.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 8, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Clifford C. Walters, Howard Freund, Simon R. Kelemen, Mehmet Deniz Ertas, William Symington
  • Publication number: 20120325458
    Abstract: A method and system for heating a subsurface formation using electrical resistance heating includes providing a wellbore which has a production portion that penetrates an interval of organic-rich rock within the subsurface formation. The method includes forming a fracture in the organic-rich rock along a plane that is generally parallel with the production portion of the wellbore. A first electrically conductive proppant is placed into the fracture. Second and third electrically conductive proppants are placed within the wellbore and in electrical communication with the first electrically conductive proppant. The second and third proppants are spaced apart, and have a bulk resistivity that is less than the bulk resistivity of the first proppant. The method then includes passing an electric current through the fracture such that heat is generated by electrical resistivity within the first proppant sufficient to pyrolyze at least a portion of the organic-rich rock into hydrocarbon fluids.
    Type: Application
    Filed: May 21, 2012
    Publication date: December 27, 2012
    Inventors: Abdel Madood M. El-Rabaa, Robert D. Kaminsky, William Symington, Jeff H. Moss
  • Publication number: 20100161302
    Abstract: A method for predicting petroleum production is provided. An exemplary embodiment of the method comprises computing a first approximation of an amount of generated petroleum that is retained with a complex organic product using a Threshold and a Maximum Retention value. The exemplary method also comprises revising the first approximation by approximating a process of chemical fractionation using at least one partition factor to create a revised approximation and predicting petroleum production based on the revised approximation.
    Type: Application
    Filed: October 1, 2009
    Publication date: June 24, 2010
    Inventors: Clifford C. Walters, Howard Freund, Simon R. Kelemen, Mehmet Deniz Ertas, William Symington
  • Publication number: 20070023186
    Abstract: An economic method for in situ maturing and production of oil shale or other deep-lying, impermeable resources containing immobile hydrocarbons. Vertical fractures are created using horizontal or vertical wells. The same or other wells are used to inject pressurized fluids heated to less than approximately 370° C., and to return the cooled fluid for reheating and recycling. The heat transferred to the oil shale gradually matures the kerogen to oil and gas as the temperature in the shale is brought up, and also promotes permeability within the shale in the form of small fractures sufficient to allow the shale to flow into the well fractures where the product is collected commingled with the heating fluid and separated out before the heating fluid is recycled.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 1, 2007
    Inventors: Robert Kaminsky, William Symington
  • Publication number: 20070000662
    Abstract: Methods are provided that include the steps of providing wells in a formation, establishing one or more fractures (12) in the formation, such that each fracture intersects at least one of the wells (16, 18), placing electrically conductive material in the fractures, and generating electric current through the fractures and through the material such that sufficient heat (10) is generated by electrical resistivity within the material to pyrolyze organic matter in the formation into producible hydrocarbons.
    Type: Application
    Filed: April 14, 2004
    Publication date: January 4, 2007
    Inventors: William Symington, Michele Thomas, Quinn Passey, Abdel Wadood El-Rabaa, Jeff Moss, Robert Kaminsky
  • Publication number: 20060100837
    Abstract: A method for producing a substantially calibrated numerical model, which can be used for calculating a stress on any point in a formation, accounts for a formation's geologic history using at least one virtual formation condition to effectively “create” the present-day, virgin stress distribution that correlates, within acceptable deviation limits, to actual field stress measurement data obtained for the formation. A virtual formation condition may describe an elastic rock property (e.g., Poisson ratio, Young's modulus), a plastic rock property (e.g., friction angle, cohesion) and/or a geologic process (e.g., tectonics, erosion) considered pertinent to developing a stratigraphic model suitable for performing the desired stress analysis of the formation.
    Type: Application
    Filed: October 14, 2005
    Publication date: May 11, 2006
    Inventors: William Symington, David Yale