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:
Aug. 18, 2009
Filed:
Dec. 07, 2005
Paul Steven Jaques, Cornwall, GB;
Robert Hughes Jones, Cornwall, GB;
Paul Steven Jaques, Cornwall, GB;
Robert Hughes Jones, Cornwall, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Apparatus is disclosed for securing a sonde to the inner wall of a well casing (). The sonde () comprises a clamp () expandable from a contracted position to an expanded position in which the clamp can engage the inner wall. The securing apparatus comprises a member () for releasably engaging with the clamp () to hold the clamp in the contracted position; a spring () connected to the member such that when the spring is in a compressed state, the member is constrained into engagement with the clamp to hold the clamp in the contracted position; and a mechanism () for holding the spring () in its compressed state during a 10 first mode of operation and, in a second mode of operation, for releasing the spring () from its compressed state thus disengaging the member () from the clamp to permit the clamp to expand into its expanded position, the mechanism including a material () which in the first mode of operation, is in a solid state and, in the second mode of operation, is in a liquid state.