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:
Jul. 04, 1989
Filed:
Aug. 10, 1987
William E Phillips, Houston, TX (US);
Halliburton Logging Services, Inc., Houston, TX (US);
Abstract
In an acoustic well logging apparatus including one or two transmitters and having a pair of spaced apart receivers, two interval transit times are measured independently through a common zone of interest. The two independent measured values are then compared and the difference is then used in contrast with a threshold determinant based on the period of the transmitted pulses. This comparison shows a difference. If the threshold value is not exceeded by the difference value a quality indication is then obtained suggesting that the acoustic measurements did not suffer from cycle skipping. If the threshold value is exceeded by the difference value, then a possible cycle skip exists. If testing shows that a cycle skip does exist, then the error that it introduces is removed from the final log, and a quality indication is obtained suggesting that the answer is good and that a cycle skip error has been removed.