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:
Dec. 17, 2013
Filed:
Apr. 08, 2010
Bassem Khadhraoui, Cambridge, GB;
Harold David Leslie, Girton, GB;
Gwenola Michaud, Milan, IT;
W. Scott Leaney, Katy, TX (US);
Bassem Khadhraoui, Cambridge, GB;
Harold David Leslie, Girton, GB;
Gwenola Michaud, Milan, IT;
W. Scott Leaney, Katy, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods and systems for the detection and localization of microseismic events are proposed which operate in real-time. Hypocenters in three spatial dimensions are provided along with an estimate of the event origin time. Sensor positions may be distributed in 3D space, and are not confined to linear arrays in vertical wells. A location of the event is approximated and a grid search, based on the approximate location of the event, is used to derive a residual function over a finer sampling followed by a gradient search of the residual function to optimize the location of the event.