The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2012
Filed:
May. 06, 2009
Robert R. Mcdaniel, Houston, TX (US);
Michael Lynn Sheriff, Plano, TX (US);
Eric E. Funk, Ouray, CO (US);
Ethan A. Funk, Ouray, CO (US);
Robert R. McDaniel, Houston, TX (US);
Michael Lynn Sheriff, Plano, TX (US);
Eric E. Funk, Ouray, CO (US);
Ethan A. Funk, Ouray, CO (US);
Momentive Specialty Chemicals Inc., Columbus, OH (US);
Abstract
Radar ranging data are collected from a down hole tool at various depths in a fractured well bore, and analyzed to provide a profile of the length of each wing of the fracture as a function of depth. The height of the fracture is determined from the vertical positions where the fracture is just observed or no longer observed as the tool is raised or lowered. For consecutive depths along the fracture (and for selected elevations from each depth for the case of a switchable antenna beam), reflection intensity as a function of range is measured. Simulated radar data are computed from a fracture model having the height of the fracture begin measured. The fracture model is varied and the resulting simulated data are correlated with the survey data until a match of minimal error is determined.