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:
Nov. 04, 2003
Filed:
Nov. 06, 2001
Chaur-Jian Hsu, Danbury, CT (US);
Jahir A. Pabon, Brookfield, CT (US);
Richard D. Joyce, Brookfield, CT (US);
Ralph M. D'Angelo, New Fairfield, CT (US);
Jeffrey B. Aron, Houston, TX (US);
Pierre Campanac, Sugar Land, TX (US);
Lennox Reid, Houston, TX (US);
H. Charles Straub, Sugar Land, TX (US);
Cengiz Esmersoy, Sugar Land, TX (US);
Darryl Grigor, Bangkok, TH;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
In one aspect, the invention involves an acoustic logging tool for performing acoustic investigations of subsurface geological formations. In one embodiment, the tool comprises a generally longitudinally extending tool body adapted for positioning in a borehole. At least one transmitter is mounted on the tool body to emit acoustic energy. At least one receiver is also mounted on the tool body at a location axially displaced from the at least one transmitter. The receiver is adapted to receive acoustic energy. An attenuator is also positioned along the body and includes at least one cavity having a plurality of particles disposed therein. The attenuator as disclosed herein may be applied to other logging tools for protecting tool components and enhancing measurement quality. Methods for attenuating acoustic energy transmitted through the body of an acoustic logging tool or other logging tools are also disclosed.