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:
Jun. 13, 2006
Filed:
Apr. 28, 2003
Michael J. Flecker, Sugarland, TX (US);
Larry Stephenson, Kennedale, TX (US);
J. Thomas Hampton, Iii, Houston, TX (US);
Michael J. Flecker, Sugarland, TX (US);
Larry Stephenson, Kennedale, TX (US);
J. Thomas Hampton, III, Houston, TX (US);
Core Laboratories L.P., Houston, TX (US);
Abstract
An apparatus and method are provided for varying an operating parameter for a nuclear gamma ray tool for evaluating the integrity of gravel packing. The gamma ray outpat intensity and area of investigation are altered by changing a source housing geometry and the material from which the source housing is made. An actuator is provided to slide a variable electron density sleeve over the source and to vary the area of investigation by changing the distance between the source and a detector.