Patents by Inventor Philip A. Rabbito

Philip A. Rabbito 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).

  • DETERMINING FLUID CHEMISTRY OF FORMATION FLUID BY DOWNHOLE REAGENT INJECTION SPECTRAL ANALYSIS
    Publication number: 20090047181
    Abstract: A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the reagent container is injected into formation fluid in the flow-line to make a mixture of formation fluid and reagent. The mixture is moved through a spectral analyzer cell in the fluids analyzer to produce a time-series of optical density measurements at a plurality of wavelengths. A characteristic of formation fluid is determined by spectral analysis of the time-series of optical density measurements.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 19, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Torleif Torgersen, Bhavani Raghuraman, Edward Harrigan, Oliver C. Mullins, Gale H. Gustavson, Philip A. Rabbito, Ricardo Reves Vasques
  • Methods and apparatus for determining chemical composition of reservoir fluids
    Patent number: 7095012
    Abstract: Methods of analyzing formation fluids in an oilfield environment are near-infrared absorption spectroscopy. Indications of near-infrared absorptions are analyzed to determine the concentration of compounds in a formation fluid sample.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 22, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Go Fujisawa, Oliver C. Mullins, Toru Terabayashi, Fredrick A. Jenet, Maria A. van Agthoven, Philip A. Rabbito
  • Methods and apparatus for determining chemical composition of reservoir fluids
    Publication number: 20040069942
    Abstract: Methods of analyzing formation fluids in an oilfield environment are near-infrared absorption spectroscopy. Indications of near-infrared absorptions are analyzed to determine the concentration of compounds in a formation fluid sample.
    Type: Application
    Filed: November 7, 2003
    Publication date: April 15, 2004
    Inventors: Go Fujisawa, Oliver C. Mullins, Toru Terabayashi, Frederick A. Jenet, Maria A. van Agthoven, Philip A. Rabbito
  • Method of detecting carbon dioxide in a downhole environment
    Patent number: 6465775
    Abstract: Methods of detecting carbon dioxide in downhole environments are provided. Near-infrared light is transmitted through a gas downhole. Indications of near-infrared absorptions are detected from the gas and used to determine the presence of carbon dioxide.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: October 15, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Oliver C. Mullins, Philip A. Rabbito, Lawrence E. McGowan, Toru Terabayashi, Kazuyoshi Kegasawa
  • Method of detecting carbon dioxide in a downhole environment
    Publication number: 20020074489
    Abstract: Methods of detecting carbon dioxide in downhole environments are provided. Near-infrared light is transmitted through a gas downhole. Indications of near-infrared absorptions are detected from the gas and used to determine the presence of carbon dioxide.
    Type: Application
    Filed: December 19, 2000
    Publication date: June 20, 2002
    Inventors: Oliver C. Mullins, Philip A. Rabbito, Lawrence E. McGowan, Toru Terabayashi, Kazuyoshi Kegasawa