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. 30, 2009
Filed:
Jun. 29, 2006
Fernando Garcia-osuna, Sugar Land, TX (US);
Toru Ikegami, Danbury, CT (US);
Vivian Pistre, Tokyo, JP;
Shu-kong Chang, Yokohama, JP;
Yoko Morikami, Sagamihara, JP;
Fernando Garcia-Osuna, Sugar Land, TX (US);
Toru Ikegami, Danbury, CT (US);
Vivian Pistre, Tokyo, JP;
Shu-Kong Chang, Yokohama, JP;
Yoko Morikami, Sagamihara, JP;
Schlumbeger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for in-situ calibrating acoustic receivers while the tool is in an open or cased borehole or during a logging run in a borehole. The method and system facilitate calibrating the acoustic receivers while they are mounted to a downhole acoustic tool. Calibrating the acoustic receivers in situ provides more accurate results than previously available. The method and system provide separate compensation factors for the acoustic receivers at different frequencies and for different transmission sources. The separate compensation factors facilitate more accurate signal acquisition over a wider range of conditions.