Patents by Inventor Stephanie A. Michels

Stephanie A. Michels 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 and apparatus for full offset resistivity imaging for use in boreholes
    Patent number: 6815954
    Abstract: Using micro-resistivity techniques, an image of the wall of a borehole can be obtained. A downhole tool stack is provided with plural imaging tools, wherein each imaging tool has a set of pads that deploy radially outward to contact the borehole wall to obtain the image thereof. As the pads deploy outwardly, gaps are formed between the pads. The pads of one tool are circumferentially offset relative to the pads of the other tool so that more complete circumferential coverage of the borehole wall is obtained during the imaging process. Furthermore, an adaptive polling technique is utilized to telemeter the large amounts of data generated by the two imaging tools to the surface. Data is obtained from the imaging tools by polling at a particular rate, which rate is modified depending upon the amount of data generated by the imaging tools.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: November 9, 2004
    Assignee: Computalog USA, Inc.
    Inventors: William David Iwanicki, Wade Stewart Maxfield, Stephanie A. Michels, Peter J. Schoch
  • Method and apparatus for full offset resistivity imaging for use in boreholes
    Publication number: 20030164706
    Abstract: Using micro-resistivity techniques, an image of the wall of a borehole can be obtained. A downhole tool stack is provided with plural imaging tools, wherein each imaging tool has a set of pads that deploy radially outward to contact the borehole wall to obtain the image thereof. As the pads deploy outwardly, gaps are formed between the pads. The pads of one tool are circumferentially offset relative to the pads of the other tool so that more complete circumferential coverage of the borehole wall is obtained during the imaging process. Furthermore, an adaptive polling technique is utilized to telemeter the large amounts of data generated by the two imaging tools to the surface. Data is obtained from the imaging tools by polling at a particular rate, which rate is modified depending upon the amount of data generated by the imaging tools.
    Type: Application
    Filed: January 9, 2003
    Publication date: September 4, 2003
    Inventors: William David Iwanicki, Wade Stewart Maxfield, Stephanie A. Michels, Peter J. Schoch