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. 23, 2013
Filed:
Apr. 08, 2009
Bassem Khadhraoui, Sandy Lane, GB;
Harold David Leslie, Girton, GB;
Gwenola Michaud, Tokyo, JP;
W. Scott Leaney, Katy, TX (US);
Bassem Khadhraoui, Sandy Lane, GB;
Harold David Leslie, Girton, GB;
Gwenola Michaud, Tokyo, JP;
W. Scott Leaney, Katy, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for the detection and localization of microseismic events is proposed which operates in real-time. It provides hypocenters in three spatial dimensions 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. The method combines and improves two existing approaches. For detection and localization purposes the method makes use of the generalized beam-forming and forward modeling properties defined in the 'CMM' algorithm. For location refinement, the method uses a stabilized version of the generalized 'Geiger' approach.