Patents by Inventor Mark D. Patterson

Mark D. Patterson 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).

  • Process for removing dissolved gas from an evaporator feed stream
    Patent number: 10337305
    Abstract: A method for treating produced water or a feedwater stream with an evaporator. The feedwater stream or produced water is directed to and through a deaerator located upstream of the evaporator. Steam produced by the evaporator is utilized to strip dissolved gases from the produced water or feedwater stream passing through the deaerator. To efficiently strip dissolved gases, the vapor pressure in the deaerator is maintained at below atmospheric pressure and the produced water or feedwater stream is heated to a temperature greater than the saturated vapor temperature in the deaerator.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: July 2, 2019
    Assignee: Veolia Water Technologies, Inc.
    Inventors: Robert Blackmon, Mikel Garcia, Mark D. Patterson
  • Method of flash-cooling produced water and heating steam generator feedwater
    Patent number: 9909401
    Abstract: An oil recovery process where produced water is cooled through a flash evaporization process and the resulting vapor is utilized to heat steam generator feedwater.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 6, 2018
    Assignee: Veolia Water Technologies, Inc.
    Inventor: Mark D. Patterson
  • PROCESS FOR REMOVING DISSOLVED GAS FROM AN EVAPORATOR FEED STREAM
    Publication number: 20170321527
    Abstract: A method for treating produced water or a feedwater stream with an evaporator. The feedwater stream or produced water is directed to and through a deaerator located upstream of the evaporator. Steam produced by the evaporator is utilized to strip dissolved gases from the produced water or feedwater stream passing through the deaerator. To efficiently strip dissolved gases, the vapor pressure in the deaerator is maintained at below atmospheric pressure and the produced water or feedwater stream is heated to a temperature greater than the saturated vapor temperature in the deaerator.
    Type: Application
    Filed: May 3, 2016
    Publication date: November 9, 2017
    Applicant: Veolia Water Technologies, Inc.
    Inventors: Robert Blackmon, Mikel Garcia, Mark D. Patterson
  • METHOD OF FLASH-COOLING PRODUCED WATER AND HEATING STEAM GENERATOR FEEDWATER
    Publication number: 20160047218
    Abstract: An oil recovery process where produced water is cooled through a flash evaporization process and the resulting vapor is utilized to heat steam generator feedwater.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 18, 2016
    Applicant: Veolia Water Technologies, Inc.
    Inventor: Mark D. Patterson
  • Method for removing silica from evaporator concentrate
    Patent number: 7686079
    Abstract: A method for removing silica from evaporator concentrate to facilitate disposal of the concentrate. An alkaline earth compound is mixed with the concentrate in a crystallizer. Silica in the concentrate reacts with the alkaline earth compound and precipitates from the concentrate as alkaline silicate complexes. The concentrate having the alkaline earth silicate complexes is directed to a separator where the alkaline earth silicate complexes are separated from the concentrate, producing an aqueous solution and slurry. The slurry is directed to a filter where solids are separated from a filtrate. Both the aqueous solution and the filtrate can be disposed of by deep well injection.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: March 30, 2010
    Assignee: HPD, LLC
    Inventors: David E. Gamache, Charles Edward Mackey, Mark D. Patterson
  • METHOD FOR REMOVING SILICA FROM EVAPORATOR CONCENTRATE
    Publication number: 20100038081
    Abstract: A method for removing silica from evaporator concentrate to facilitate disposal of the concentrate. An alkaline earth compound is mixed with the concentrate in a crystallizer. Silica in the concentrate reacts with the alkaline earth compound and precipitates from the concentrate as alkaline silicate complexes. The concentrate having the alkaline earth silicate complexes is directed to a separator where the alkaline earth silicate complexes are separated from the concentrate, producing an aqueous solution and slurry. The slurry is directed to a filter where solids are separated from a filtrate. Both the aqueous solution and the filtrate can be disposed of by deep well injection.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 18, 2010
    Applicant: HPD, LLC
    Inventors: David E. Gamache, Charles Edward Mackey, Mark D. Patterson