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. 28, 2015
Filed:
Jun. 18, 2012
Johannis Josephus Den Boer, Rijswijk, NL;
Johannes Maria Vianney Antonius Koelman, Rijswijk, NL;
Jeremiah Glen Pearce, Houston, TX (US);
Andre Franzen, Rijswijk, NL;
Paul Gerard Edmond Lumens, Rijswijk, NL;
Daniel Joinson, Rijswijk, NL;
Johannis Josephus Den Boer, Rijswijk, NL;
Johannes Maria Vianney Antonius Koelman, Rijswijk, NL;
Jeremiah Glen Pearce, Houston, TX (US);
Andre Franzen, Rijswijk, NL;
Paul Gerard Edmond Lumens, Rijswijk, NL;
Daniel Joinson, Rijswijk, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A distributed acoustic sensor, comprises a housing having a longitudinal bore therethrough, an optical fiber supported in the bore; and an inertial member supported within the bore, wherein the fiber is mechanically coupled to the inertial member. The inertial member may include a weight and may provides isotropic stiffness such that it deforms more readily in a first direction normal to the bore than it does in a second direction that is normal to both the bore and the first direction. The sensor may include a plurality of axially-spaced centralizers in the bore, and at least one of the inertial member and the centralizers may comprise swellable material.