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. 28, 1987
Filed:
Jun. 04, 1985
Donald N Yates, Jr, Katy, TX (US);
Halliburton Company, Duncan, OK (US);
Abstract
Method and apparatus for recording data downhole in a borehole. A recorder having a data memory is lowered into a data recording position in the borehole. A signal is transmitted downhole into the borehole and the recorder is initiated to begin recording data at an ascertainable memory location of the data memory in response to a downhole stimulus produced in response to the transmitted signal. Also, a downhole recorder for use in detecting the firing of an explosive device downhole in a borehole is provided. After an attempt is made to actuate the explosive device, the recorder is retrieved to the surface where the contents of its memory are analyzed to determine whether the explosive device has been actuated.