Patents by Inventor Kasumi Fujii

Kasumi Fujii 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).

  • Systems and methods of downhole thermal property measurement
    Patent number: 8122951
    Abstract: Methods and systems of measuring in-situ time variant temperature for subsurface formations utilizing an active heating and/or cooling device and temperature sensors for purposes of characterizing hydrocarbon-bearing formations by deriving formation thermal properties.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 28, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Masafumi Fukuhara, Kasumi Fujii, Yoko Morikami
  • Systems and methods of downhole thermal property measurement
    Publication number: 20060191683
    Abstract: Methods and systems of measuring in-situ time variant temperature for subsurface formations utilizing an active heating and/or cooling device and temperature sensors for purposes of characterizing hydrocarbon-bearing formations by deriving formation thermal properties.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 31, 2006
    Inventors: Masafumi Fukuhara, Kasumi Fujii, Yoko Morikami
  • Methods and apparatus for imaging a subsurface fracture
    Patent number: 6839633
    Abstract: A method and apparatus for imaging subsurface fractures using an ST plane for quick looks and quality checks at the wellsite. Incident angles of impinging acoustic waves with respect to receivers are estimated from actual and apparent slowness, and the position of the fracture is estimated from the travel time and incident angle. The fracture can be imaged by plotting values from the ST plane onto the position of the fracture.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: January 4, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Satoshi Basaki, Kasumi Fujii
  • METHODS AND APPARATUS FOR IMAGING A SUBSURFACE FRACTURE
    Publication number: 20040254733
    Abstract: A method and apparatus for imaging subsurface fractures using an ST plane for quick looks and quality checks at the wellsite. Incident angles of impinging acoustic waves with respect to receivers are estimated from actual and apparent slowness, and the position of the fracture is estimated from the travel time and incident angle. The fracture can be imaged by plotting values from the ST plane onto the position of the fracture.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 16, 2004
    Inventors: Satoshi Basaki, Kasumi Fujii