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:
Apr. 15, 2008
Filed:
Oct. 17, 2001
Roger L. Schultz, Aubrey, TX (US);
Orlando DE Jesus, Stillwater, OK (US);
Andrew J. Osborne, Jr., Dallas, TX (US);
Roger L. Schultz, Aubrey, TX (US);
Orlando De Jesus, Stillwater, OK (US);
Andrew J. Osborne, Jr., Dallas, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A method and apparatus for signalling the surface operator about downhole conditions. Sensors located downhole collect data while drilling and the data is processed to determine bit failure, for example. When the sensor data indicates a failure, the pressure of drilling mud is varied using a valve on the downhole unit, and this pressure variance is indicated by a pressure gauge visible to the operator. This pressure change tells the operator a failure has been indicated.