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. 12, 1993
Filed:
Jul. 02, 1990
Paul E Peterson, San Francisco, CA (US);
Western Atlas International, Inc., Houston, TX (US);
Abstract
An apparatus is provided for determining the acoustic anisotropy of a sample being subjected to simulated in-situ pressures and/or temperatures. A sample of the formation of interest is received by a compliant sleeve disposed in a pressure chamber. The compliant sleeve houses a plurality of transducers which are placed in intimate contact with the sample upon pressurization of the pressure chamber. When the pressure chamber reaches the desired pressure and/or temperature, the transducers are energized. The travel times of the generated acoustic signals through the sample are recorded to determine the anisotropic behavior of the sample. The velocity variations of the sample can indicate the historical principal stress axes of the formation at depth.