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:
Sep. 10, 2013
Filed:
Jan. 11, 2011
Youssef Elmarsafawi, Aberdeen, GB;
Youssef Elmarsafawi, Aberdeen, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
An apparatus for measuring cement expansion comprises an expansion cell that comprises two nodes separated by a slit. The nodes are separated by a distance such that a change of the distance between the nodes may be correlated to a linear expansion of cement contained in the expansion cell. An electrical component is coupled to the two nodes, and the electrical component has an electrical property that may be correlated to the distance between the nodes. Measurement of the electrical-property change may be performed continuously and in real time. In addition, the expansion cell may be placed in a vessel equipped to simulate downhole pressure and temperature conditions.