Patents by Inventor Casey R. Chadwick

Casey R. Chadwick 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: 8360148
    Abstract: Example methods, apparatus and articles of manufacture to measure gas reservoir formation pressures are disclosed. A disclosed example method includes positioning a downhole bubble sensor in a wellbore formed in a geological gas reservoir formation, trapping a fluid in a portion of the wellbore including the bubble sensor, pressurizing the trapped fluid, reducing pressurization of the fluid until the bubble sensor detects one or more bubbles in the fluid, recording a pressure of the fluid when the bubble sensor detects the one or more bubbles, and determining a formation pressure of the gas reservoir from the recorded pressure.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Keith Atwood, Bobby Poe, Casey R. Chadwick, Rajgopal V. Malpani, Edward C. Boratko
  • Publication number: 20110088894
    Abstract: Example methods, apparatus and articles of manufacture to measure gas reservoir formation pressures are disclosed. A disclosed example method includes positioning a downhole bubble sensor in a wellbore formed in a geological gas reservoir formation, trapping a fluid in a portion of the wellbore including the bubble sensor, pressurizing the trapped fluid, reducing pressurization of the fluid until the bubble sensor detects one or more bubbles in the fluid, recording a pressure of the fluid when the bubble sensor detects the one or more bubbles, and determining a formation pressure of the gas reservoir from the recorded pressure.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Inventors: Keith Atwood, Bobby Poe, Casey R. Chadwick, Rajgopal V. Malpani, Edward C. Boratko