Patents by Inventor Quentin Shane Stang

Quentin Shane Stang 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).

  • Method of isolating open perforations in horizontal wellbores using an ultra lightweight proppant
    Patent number: 7735556
    Abstract: An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: June 15, 2010
    Assignee: BJ Services Company
    Inventors: John Gordon Misselbrook, Russell Meyer, Darcy A. Schultz, Trevor Gordon Hayes, Quentin Shane Stang
  • METHOD OF ISOLATING OPEN PERFORATIONS IN HORIZONTAL WELLBORES USING AN ULTRA LIGHTWEIGHT PROPPANT
    Publication number: 20080271889
    Abstract: An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.
    Type: Application
    Filed: March 14, 2008
    Publication date: November 6, 2008
    Inventors: John Gordon Misselbrook, Russell Meyer, Darcy A. Schultz, Trevor Gordon Hayes, Quentin Shane Stang